init

Plugins/KawaiiPhysics/KawaiiPhysics.uplugin

@@ -0,0 +1,29 @@
+{
+	"FileVersion": 3,
+	"Version": 1,
+	"VersionName": "1.19.0",
+	"FriendlyName": "KawaiiPhysics",
+	"Description": "Simple Bone Physics for UnrealEngine4 & 5",
+	"Category": "Animation",
+	"CreatedBy": "pafuhana1213",
+	"CreatedByURL": "https://twitter.com/pafuhana1213",
+	"DocsURL": "https://github.com/pafuhana1213/KawaiiPhysics",
+	"MarketplaceURL": "",
+	"SupportURL": "https://github.com/pafuhana1213/KawaiiPhysics/issues",
+	"CanContainContent": false,
+	"IsBetaVersion": false,
+	"IsExperimentalVersion": false,
+	"Installed": false,
+	"Modules": [
+		{
+			"Name": "KawaiiPhysics",
+			"Type": "Runtime",
+			"LoadingPhase": "PostConfigInit"
+		},
+		{
+			"Name": "KawaiiPhysicsEd",
+			"Type": "UncookedOnly",
+			"LoadingPhase": "PreDefault"
+		}
+	]
+}

Plugins/KawaiiPhysics/Source/KawaiiPhysics/AnimNotifies/AnimNotifyState_KawaiiPhysics.cpp

@@ -0,0 +1,81 @@
+// KawaiiPhysics : Copyright (c) 2019-2024 pafuhana1213, MIT License
+
+
+#include "AnimNotifyState_KawaiiPhysics.h"
+#include "KawaiiPhysicsLibrary.h"
+#include "Misc/UObjectToken.h"
+
+#include UE_INLINE_GENERATED_CPP_BY_NAME(AnimNotifyState_KawaiiPhysics)
+
+#define LOCTEXT_NAMESPACE "KawaiiPhysics_AnimNotifyState"
+
+UAnimNotifyState_KawaiiPhysicsAddExternalForce::UAnimNotifyState_KawaiiPhysicsAddExternalForce(
+	const FObjectInitializer& ObjectInitializer)
+	: Super(ObjectInitializer)
+{
+#if WITH_EDITORONLY_DATA
+	NotifyColor = FColor(255, 170, 0, 255);
+#endif // WITH_EDITORONLY_DATA
+}
+
+FString UAnimNotifyState_KawaiiPhysicsAddExternalForce::GetNotifyName_Implementation() const
+{
+	return FString(TEXT("KP: Add ExternalForce"));
+}
+
+void UAnimNotifyState_KawaiiPhysicsAddExternalForce::NotifyBegin(USkeletalMeshComponent* MeshComp,
+                                                                 UAnimSequenceBase* Animation,
+                                                                 float TotalDuration,
+                                                                 const FAnimNotifyEventReference& EventReference)
+{
+	UKawaiiPhysicsLibrary::AddExternalForcesToComponent(MeshComp, AdditionalExternalForces, this,
+	                                                    FilterTags, bFilterExactMatch);
+	Super::NotifyBegin(MeshComp, Animation, TotalDuration, EventReference);
+}
+
+void UAnimNotifyState_KawaiiPhysicsAddExternalForce::NotifyEnd(USkeletalMeshComponent* MeshComp,
+                                                               UAnimSequenceBase* Animation,
+                                                               const FAnimNotifyEventReference& EventReference)
+{
+	UKawaiiPhysicsLibrary::RemoveExternalForcesFromComponent(MeshComp, this, FilterTags, bFilterExactMatch);
+
+	Super::NotifyEnd(MeshComp, Animation, EventReference);
+}
+
+#if WITH_EDITOR
+void UAnimNotifyState_KawaiiPhysicsAddExternalForce::ValidateAssociatedAssets()
+{
+	static const FName NAME_AssetCheck("AssetCheck");
+
+	if (const UAnimSequenceBase* ContainingAsset = Cast<UAnimSequenceBase>(GetContainingAsset()))
+	{
+		for (auto& ForceInstancedStruct : AdditionalExternalForces)
+		{
+			if (!ForceInstancedStruct.IsValid())
+			{
+				FMessageLog AssetCheckLog(NAME_AssetCheck);
+
+				const FText MessageLooping = FText::Format(
+					NSLOCTEXT("AnimNotify", "ExternalForce_ShouldSet",
+					          " AnimNotifyState(KawaiiPhysics_AddExternalForce) doesn't have a valid ExternalForce in {0}"),
+					FText::AsCultureInvariant(ContainingAsset->GetPathName()));
+
+				AssetCheckLog.Warning()
+				             ->AddToken(FUObjectToken::Create(ContainingAsset))
+				             ->AddToken(FTextToken::Create(MessageLooping));
+
+				if (GIsEditor)
+				{
+					constexpr bool bForce = true;
+					AssetCheckLog.Notify(MessageLooping, EMessageSeverity::Warning, bForce);
+				}
+			}
+
+			//const auto& ExternalForce = ForceInstancedStruct.Get<FKawaiiPhysics_ExternalForce>();
+		}
+	}
+}
+
+#endif
+
+#undef LOCTEXT_NAMESPACE

Plugins/KawaiiPhysics/Source/KawaiiPhysics/AnimNotifies/AnimNotifyState_KawaiiPhysics.h

@@ -0,0 +1,90 @@
+// KawaiiPhysics : Copyright (c) 2019-2024 pafuhana1213, MIT License
+
+#pragma once
+
+#include "GameplayTagContainer.h"
+#include "Animation/AnimNotifies/AnimNotifyState.h"
+
+#if	ENGINE_MAJOR_VERSION >= 5 && ENGINE_MINOR_VERSION >= 5
+#include "StructUtils/InstancedStruct.h"
+#else
+#include "InstancedStruct.h"
+#endif
+
+#include "AnimNotifyState_KawaiiPhysics.generated.h"
+
+/**
+ * UAnimNotifyState_KawaiiPhysicsAddExternalForce
+ * 
+ * This class represents an animation notify state that adds external forces to a skeletal mesh component
+ * during an animation sequence. It inherits from UAnimNotifyState and provides functionality to add and remove
+ * external forces at the beginning and end of the animation notify state.
+ */
+UCLASS(Blueprintable, meta = (DisplayName = "KawaiiPhyiscs: Add ExternalForce"))
+class KAWAIIPHYSICS_API UAnimNotifyState_KawaiiPhysicsAddExternalForce : public UAnimNotifyState
+{
+	GENERATED_BODY()
+
+public:
+	/**
+	 * Constructor for UAnimNotifyState_KawaiiPhysicsAddExternalForce.
+	 * 
+	 * @param ObjectInitializer - The object initializer for this class.
+	 */
+	UAnimNotifyState_KawaiiPhysicsAddExternalForce(const FObjectInitializer& ObjectInitializer);
+
+	/**
+	 * Gets the name of the notify state.
+	 * 
+	 * @return The name of the notify state as a string.
+	 */
+	virtual FString GetNotifyName_Implementation() const override;
+
+	/**
+	 * Called when the animation notify state begins.
+	 * 
+	 * @param MeshComp - The skeletal mesh component.
+	 * @param Animation - The animation sequence.
+	 * @param TotalDuration - The total duration of the notify state.
+	 * @param EventReference - The event reference.
+	 */
+	virtual void NotifyBegin(USkeletalMeshComponent* MeshComp, UAnimSequenceBase* Animation, float TotalDuration,
+	                         const FAnimNotifyEventReference& EventReference) override;
+
+	/**
+	 * Called when the animation notify state ends.
+	 * 
+	 * @param MeshComp - The skeletal mesh component.
+	 * @param Animation - The animation sequence.
+	 * @param EventReference - The event reference.
+	 */
+	virtual void NotifyEnd(USkeletalMeshComponent* MeshComp, UAnimSequenceBase* Animation,
+	                       const FAnimNotifyEventReference& EventReference) override;
+
+	/**
+	 * Additional external forces to be applied to the skeletal mesh component.
+	 */
+	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "ExternalForce",
+		meta = (BaseStruct = "/Script/KawaiiPhysics.KawaiiPhysics_ExternalForce", ExcludeBaseStruct))
+	TArray<FInstancedStruct> AdditionalExternalForces;
+
+	/**
+	 * Tags used to filter which external forces are applied.
+	 */
+	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "ExternalForce")
+	FGameplayTagContainer FilterTags;
+
+	/** 
+	 * Whether to filter tags to exact matches (if False, parent tags will also be included).
+	 * Tagのフィルタリングにて完全一致にするか否か（Falseの場合は親Tagも含めます）
+	 */
+	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "ExternalForce")
+	bool bFilterExactMatch;
+
+#if WITH_EDITOR
+	/**
+	 * Validates the associated assets in the editor.
+	 */
+	virtual void ValidateAssociatedAssets() override;
+#endif
+};

Plugins/KawaiiPhysics/Source/KawaiiPhysics/AnimNotifies/AnimNotify_KawaiiPhysics.cpp

@@ -0,0 +1,69 @@
+// KawaiiPhysics : Copyright (c) 2019-2024 pafuhana1213, MIT License
+
+#include "AnimNotify_KawaiiPhysics.h"
+#include "KawaiiPhysicsLibrary.h"
+#include "Misc/UObjectToken.h"
+#include "Logging/MessageLog.h"
+
+#include UE_INLINE_GENERATED_CPP_BY_NAME(AnimNotify_KawaiiPhysics)
+
+#define LOCTEXT_NAMESPACE "KawaiiPhysics_AnimNotify"
+
+UAnimNotify_KawaiiPhysicsAddExternalForce::UAnimNotify_KawaiiPhysicsAddExternalForce(
+	const FObjectInitializer& ObjectInitializer)
+{
+#if WITH_EDITORONLY_DATA
+	NotifyColor = FColor(255, 170, 0, 255);
+#endif // WITH_EDITORONLY_DATA
+}
+
+FString UAnimNotify_KawaiiPhysicsAddExternalForce::GetNotifyName_Implementation() const
+{
+	return FString(TEXT("KP: Add ExternalForce"));
+}
+
+void UAnimNotify_KawaiiPhysicsAddExternalForce::Notify(USkeletalMeshComponent* MeshComp, UAnimSequenceBase* Animation,
+                                                       const FAnimNotifyEventReference& EventReference)
+{
+	UKawaiiPhysicsLibrary::AddExternalForcesToComponent(MeshComp, AdditionalExternalForces, this,
+	                                                    FilterTags, bFilterExactMatch, true);
+
+	Super::Notify(MeshComp, Animation, EventReference);
+}
+
+#if WITH_EDITOR
+void UAnimNotify_KawaiiPhysicsAddExternalForce::ValidateAssociatedAssets()
+{
+	static const FName NAME_AssetCheck("AssetCheck");
+
+	if (const UAnimSequenceBase* ContainingAsset = Cast<UAnimSequenceBase>(GetContainingAsset()))
+	{
+		for (auto& ForceInstancedStruct : AdditionalExternalForces)
+		{
+			if (!ForceInstancedStruct.IsValid())
+			{
+				FMessageLog AssetCheckLog(NAME_AssetCheck);
+
+				const FText MessageLooping = FText::Format(
+					NSLOCTEXT("AnimNotify", "ExternalForce_ShouldSet",
+					          " AnimNotify(KawaiiPhysics_AddExternalForce) doesn't have a valid ExternalForce in {0}"),
+					FText::AsCultureInvariant(ContainingAsset->GetPathName()));
+
+				AssetCheckLog.Warning()
+				             ->AddToken(FUObjectToken::Create(ContainingAsset))
+				             ->AddToken(FTextToken::Create(MessageLooping));
+
+				if (GIsEditor)
+				{
+					constexpr bool bForce = true;
+					AssetCheckLog.Notify(MessageLooping, EMessageSeverity::Warning, bForce);
+				}
+			}
+
+			//const auto& ExternalForce = ForceInstancedStruct.Get<FKawaiiPhysics_ExternalForce>();
+		}
+	}
+}
+#endif
+
+#undef LOCTEXT_NAMESPACE

Plugins/KawaiiPhysics/Source/KawaiiPhysics/AnimNotifies/AnimNotify_KawaiiPhysics.h

@@ -0,0 +1,80 @@
+// KawaiiPhysics : Copyright (c) 2019-2024 pafuhana1213, MIT License
+
+#pragma once
+
+#include "GameplayTagContainer.h"
+#include "Animation/AnimNotifies/AnimNotify.h"
+
+#if	ENGINE_MAJOR_VERSION >= 5 && ENGINE_MINOR_VERSION >= 5
+#include "StructUtils/InstancedStruct.h"
+#else
+#include "InstancedStruct.h"
+#endif
+
+#include "AnimNotify_KawaiiPhysics.generated.h"
+
+/**
+ * UAnimNotify_KawaiiPhysicsAddExternalForce
+ *
+ * This class represents an animation notify that adds external forces to a skeletal mesh component
+ * during an animation sequence. It inherits from UAnimNotify and provides functionality to add and remove
+ * external forces when the notify is triggered.
+ */
+UCLASS(Blueprintable, meta = (DisplayName = "KawaiiPhyiscs: Add ExternalForce"))
+class KAWAIIPHYSICS_API UAnimNotify_KawaiiPhysicsAddExternalForce : public UAnimNotify
+{
+	GENERATED_BODY()
+
+public:
+	/**
+	 * Constructor for UAnimNotify_KawaiiPhysicsAddExternalForce.
+	 *
+	 * @param ObjectInitializer - The object initializer for this class.
+	 */
+	UAnimNotify_KawaiiPhysicsAddExternalForce(const FObjectInitializer& ObjectInitializer);
+
+	/**
+	 * Gets the name of the notify.
+	 *
+	 * @return The name of the notify as a string.
+	 */
+	virtual FString GetNotifyName_Implementation() const override;
+
+	/**
+	 * Called when the animation notify is triggered.
+	 *
+	 * @param MeshComp - The skeletal mesh component.
+	 * @param Animation - The animation sequence.
+	 * @param EventReference - The event reference.
+	 */
+	virtual void Notify(USkeletalMeshComponent* MeshComp, UAnimSequenceBase* Animation,
+	                    const FAnimNotifyEventReference& EventReference) override;
+
+public:
+	/**
+	 * Additional external forces to be applied to the skeletal mesh component.
+	 */
+	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "ExternalForce",
+		meta = (BaseStruct = "/Script/KawaiiPhysics.KawaiiPhysics_ExternalForce", ExcludeBaseStruct))
+	TArray<FInstancedStruct> AdditionalExternalForces;
+
+	/**
+	 * Tags used to filter which external forces are applied.
+	 */
+	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "ExternalForce")
+	FGameplayTagContainer FilterTags;
+
+	/**
+	 * Whether to filter tags to exact matches (if False, parent tags will also be included).
+	 * Tagのフィルタリングにて完全一致にするか否か（Falseの場合は親Tagも含めます）
+	 */
+	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "ExternalForce")
+	bool bFilterExactMatch;
+
+#if WITH_EDITOR
+	/**
+	 * Validates the associated assets in the editor.
+	 */
+	virtual void ValidateAssociatedAssets() override;
+#endif
+};

Plugins/KawaiiPhysics/Source/KawaiiPhysics/KawaiiPhysics.Build.cs

@@ -0,0 +1,41 @@
+// KawaiiPhysics : Copyright (c) 2019-2024 pafuhana1213, MIT License
+
+using UnrealBuildTool;
+
+public class KawaiiPhysics : ModuleRules
+{
+	public KawaiiPhysics(ReadOnlyTargetRules Target) : base(Target)
+	{
+		PCHUsage = PCHUsageMode.UseExplicitOrSharedPCHs;
+
+		PublicDependencyModuleNames.AddRange(
+			new[]
+			{
+				"Core",
+				"AnimGraphRuntime",
+				"GameplayTags"
+			}
+		);
+
+		// StructUtils plugin has been integrated into the engine starting from 5.5
+		if (Target.Version.MajorVersion == 5 && Target.Version.MinorVersion <= 4)
+		{
+			PublicDependencyModuleNames.Add("StructUtils");
+		}
+
+		PrivateDependencyModuleNames.AddRange(
+			new[]
+			{
+				"CoreUObject",
+				"Engine",
+				"Slate",
+				"SlateCore"
+			}
+		);
+
+		if (Target.bBuildEditor)
+		{
+			PublicDependencyModuleNames.Add("UnrealEd");
+		}
+	}
+}

Plugins/KawaiiPhysics/Source/KawaiiPhysics/Private/KawaiiPhysics.cpp

@@ -0,0 +1,21 @@
+// KawaiiPhysics : Copyright (c) 2019-2024 pafuhana1213, MIT License
+
+#include "KawaiiPhysics.h"
+#include "Modules/ModuleManager.h"
+
+#define LOCTEXT_NAMESPACE "FKawaiiPhysicsModule"
+
+void FKawaiiPhysicsModule::StartupModule()
+{
+	// This code will execute after your module is loaded into memory; the exact timing is specified in the .uplugin file per-module
+}
+
+void FKawaiiPhysicsModule::ShutdownModule()
+{
+	// This function may be called during shutdown to clean up your module.  For modules that support dynamic reloading,
+	// we call this function before unloading the module.
+}
+
+#undef LOCTEXT_NAMESPACE
+
+IMPLEMENT_MODULE(FKawaiiPhysicsModule, KawaiiPhysics)

Plugins/KawaiiPhysics/Source/KawaiiPhysics/Private/KawaiiPhysicsBoneConstraintsDataAsset.cpp

@@ -0,0 +1,173 @@
+// KawaiiPhysics : Copyright (c) 2019-2024 pafuhana1213, MIT License
+
+
+#include "KawaiiPhysicsBoneConstraintsDataAsset.h"
+
+#include "KawaiiPhysics.h"
+#include "Internationalization/Regex.h"
+
+#if WITH_EDITOR
+#include "Editor.h"
+#endif
+
+#include UE_INLINE_GENERATED_CPP_BY_NAME(KawaiiPhysicsBoneConstraintsDataAsset)
+
+struct FBoneConstraintDataCustomVersion
+{
+	enum Type
+	{
+		// FNameからFBoneReferenceに移行
+		ChangeToBoneReference = 0,
+
+		// ------------------------------------------------------
+		VersionPlusOne,
+		LatestVersion = VersionPlusOne - 1
+	};
+
+	// The GUID for this custom version number
+	const static FGuid GUID;
+
+private:
+	FBoneConstraintDataCustomVersion()
+	{
+	}
+};
+
+const FGuid FBoneConstraintDataCustomVersion::GUID(0xA1C4D3F6, 0x5B2E7A8D, 0x9F6E4B3C, 0xD7E1A8B2);
+FCustomVersionRegistration GRegisterBoneConstraintDataCustomVersion(FBoneConstraintDataCustomVersion::GUID,
+                                                                    FBoneConstraintDataCustomVersion::LatestVersion,
+                                                                    TEXT("BoneConstraintData"));
+
+void FModifyBoneConstraintData::Update(const FModifyBoneConstraint& BoneConstraint)
+{
+	BoneReference1 = BoneConstraint.Bone1;
+	BoneReference2 = BoneConstraint.Bone2;
+	bOverrideCompliance = BoneConstraint.bOverrideCompliance;
+	ComplianceType = BoneConstraint.ComplianceType;
+}
+
+TArray<FModifyBoneConstraint> UKawaiiPhysicsBoneConstraintsDataAsset::GenerateBoneConstraints()
+{
+	TArray<FModifyBoneConstraint> BoneConstraints;
+
+	for (const FModifyBoneConstraintData& BoneConstraintData : BoneConstraintsData)
+	{
+		FModifyBoneConstraint BoneConstraint;
+		BoneConstraint.Bone1 = BoneConstraintData.BoneReference1;
+		BoneConstraint.Bone2 = BoneConstraintData.BoneReference2;
+		BoneConstraint.bOverrideCompliance = BoneConstraintData.bOverrideCompliance;
+		BoneConstraint.ComplianceType = BoneConstraintData.ComplianceType;
+
+		BoneConstraints.Add(BoneConstraint);
+	}
+
+	return BoneConstraints;
+}
+
+void UKawaiiPhysicsBoneConstraintsDataAsset::Serialize(FStructuredArchiveRecord Record)
+{
+	Super::Serialize(Record);
+
+	Record.GetUnderlyingArchive().UsingCustomVersion(FBoneConstraintDataCustomVersion::GUID);
+}
+
+void UKawaiiPhysicsBoneConstraintsDataAsset::PostLoad()
+{
+	Super::PostLoad();
+
+	if (GetLinkerCustomVersion(FBoneConstraintDataCustomVersion::GUID) <
+		FBoneConstraintDataCustomVersion::ChangeToBoneReference)
+	{
+		for (auto& Data : BoneConstraintsData)
+		{
+			Data.BoneReference1 = FBoneReference(Data.BoneName1);
+			Data.BoneReference2 = FBoneReference(Data.BoneName2);
+		}
+
+#if WITH_EDITOR
+		UpdatePreviewBoneList();
+#endif
+		UE_LOG(LogKawaiiPhysics, Log, TEXT("Update : BoneName -> BoneReference (%s)"), *this->GetName());
+	}
+}
+
+USkeleton* UKawaiiPhysicsBoneConstraintsDataAsset::GetSkeleton(bool& bInvalidSkeletonIsError,
+                                                               const IPropertyHandle* PropertyHandle)
+{
+#if WITH_EDITOR
+	return PreviewSkeleton.LoadSynchronous();
+#else
+	return nullptr;
+#endif
+}
+
+#if WITH_EDITOR
+#define LOCTEXT_NAMESPACE "KawaiiPhysicsBoneConstraintsDataAsset"
+
+void UKawaiiPhysicsBoneConstraintsDataAsset::ApplyRegex()
+{
+	GEditor->BeginTransaction(FText::FromString("ApplyRegex"));
+	Modify();
+
+	UpdatePreviewBoneList();
+
+	for (FRegexPatternBoneSet& Pattern : RegexPatternList)
+	{
+		const FRegexPattern Pattern1 = FRegexPattern(Pattern.RegexPatternBone1);
+		const FRegexPattern Pattern2 = FRegexPattern(Pattern.RegexPatternBone2);
+
+		FRegexMatcher Matcher1(Pattern1, PreviewBoneListString);
+		FRegexMatcher Matcher2(Pattern2, PreviewBoneListString);
+
+		while (Matcher1.FindNext() && Matcher2.FindNext())
+		{
+			FModifyBoneConstraintData BoneConstraintData;
+			BoneConstraintData.BoneReference1 = FBoneReference(FName(*Matcher1.GetCaptureGroup(0)));
+			BoneConstraintData.BoneReference2 = FBoneReference(FName(*Matcher2.GetCaptureGroup(0)));
+			BoneConstraintsData.Add(BoneConstraintData);
+		}
+	}
+
+	GEditor->EndTransaction();
+}
+
+
+void UKawaiiPhysicsBoneConstraintsDataAsset::UpdatePreviewBoneList()
+{
+	PreviewBoneList.Empty();
+	PreviewBoneListString.Empty();
+
+	if (!PreviewSkeleton.IsValid())
+	{
+		PreviewSkeleton.LoadSynchronous();
+	}
+
+	if (PreviewSkeleton.IsValid())
+	{
+		const FReferenceSkeleton& RefSkeleton = PreviewSkeleton->GetReferenceSkeleton();
+		const TArray<FMeshBoneInfo>& RefBoneInfo = RefSkeleton.GetRefBoneInfo();
+
+		for (const FMeshBoneInfo& BoneInfo : RefBoneInfo)
+		{
+			PreviewBoneList.Add(BoneInfo.Name);
+			PreviewBoneListString.Append(BoneInfo.Name.ToString());
+			PreviewBoneListString.Append(TEXT(", "));
+		}
+	}
+}
+
+void UKawaiiPhysicsBoneConstraintsDataAsset::PostEditChangeProperty(FPropertyChangedEvent& PropertyChangedEvent)
+{
+	const FName PropertyName = PropertyChangedEvent.MemberProperty
+		                           ? PropertyChangedEvent.MemberProperty->GetFName()
+		                           : NAME_None;
+
+	if (PropertyName == FName(TEXT("PreviewSkeleton")))
+	{
+		UpdatePreviewBoneList();
+	}
+}
+
+#undef LOCTEXT_NAMESPACE
+
+#endif

Plugins/KawaiiPhysics/Source/KawaiiPhysics/Private/KawaiiPhysicsCustomExternalForce.cpp

@@ -0,0 +1,5 @@
+// KawaiiPhysics : Copyright (c) 2019-2024 pafuhana1213, MIT License
+
+#include "KawaiiPhysicsCustomExternalForce.h"
+
+#include UE_INLINE_GENERATED_CPP_BY_NAME(KawaiiPhysicsCustomExternalForce)

Plugins/KawaiiPhysics/Source/KawaiiPhysics/Private/KawaiiPhysicsExternalForce.cpp

@@ -0,0 +1,322 @@
+// KawaiiPhysics : Copyright (c) 2019-2024 pafuhana1213, MIT License
+
+#include "KawaiiPhysicsExternalForce.h"
+
+#include "SceneInterface.h"
+#include "GameFramework/Character.h"
+#include "GameFramework/CharacterMovementComponent.h"
+
+#include UE_INLINE_GENERATED_CPP_BY_NAME(KawaiiPhysicsExternalForce)
+
+DECLARE_CYCLE_STAT(TEXT("KawaiiPhysics_ExternalForce_Basic_Apply"), STAT_KawaiiPhysics_ExternalForce_Basic_Apply,
+                   STATGROUP_Anim);
+DECLARE_CYCLE_STAT(TEXT("KawaiiPhysics_ExternalForce_Gravity_Apply"), STAT_KawaiiPhysics_ExternalForce_Gravity_Apply,
+                   STATGROUP_Anim);
+DECLARE_CYCLE_STAT(TEXT("KawaiiPhysics_ExternalForce_Curve_Apply"), STAT_KawaiiPhysics_ExternalForce_Curve_Apply,
+                   STATGROUP_Anim);
+DECLARE_CYCLE_STAT(TEXT("KawaiiPhysics_ExternalForce_Wind_Apply"), STAT_KawaiiPhysics_ExternalForce_Wind_Apply,
+                   STATGROUP_Anim);
+
+///
+/// Basic
+///
+void FKawaiiPhysics_ExternalForce_Basic::PreApply(FAnimNode_KawaiiPhysics& Node,
+                                                  const USkeletalMeshComponent* SkelComp)
+{
+	Super::PreApply(Node, SkelComp);
+
+	PrevTime = Time;
+	Time += Node.DeltaTime;
+	if (Interval > 0.0f)
+	{
+		if (Time > Interval)
+		{
+			Force = ForceDir * RandomizedForceScale;
+			Time = FMath::Fmod(Time, Interval);
+		}
+		else
+		{
+			Force = FVector::ZeroVector;
+		}
+	}
+	else
+	{
+		Force = ForceDir * RandomizedForceScale;
+	}
+
+	if (ExternalForceSpace == EExternalForceSpace::WorldSpace)
+	{
+		Force = ComponentTransform.InverseTransformVector(Force);
+	}
+}
+
+void FKawaiiPhysics_ExternalForce_Basic::Apply(FKawaiiPhysicsModifyBone& Bone, FAnimNode_KawaiiPhysics& Node,
+                                               const FComponentSpacePoseContext& PoseContext, const FTransform& BoneTM)
+{
+	if (!CanApply(Bone))
+	{
+		return;
+	}
+
+	SCOPE_CYCLE_COUNTER(STAT_KawaiiPhysics_ExternalForce_Basic_Apply);
+
+	float ForceRate = 1.0f;
+	if (const auto Curve = ForceRateByBoneLengthRate.GetRichCurve(); !Curve->IsEmpty())
+	{
+		ForceRate = Curve->Eval(Bone.LengthRateFromRoot);
+	}
+
+	if (ExternalForceSpace == EExternalForceSpace::BoneSpace)
+	{
+		const FVector BoneForce = BoneTM.TransformVector(Force);
+		Bone.Location += BoneForce * ForceRate * Node.DeltaTime;
+
+#if ENABLE_ANIM_DEBUG
+		BoneForceMap.Add(Bone.BoneRef.BoneName, BoneForce);
+#endif
+	}
+	else
+	{
+		Bone.Location += Force * ForceRate * Node.DeltaTime;
+
+#if ENABLE_ANIM_DEBUG
+		BoneForceMap.Add(Bone.BoneRef.BoneName, Force * ForceRate);
+#endif
+	}
+}
+
+///
+/// Gravity
+///
+void FKawaiiPhysics_ExternalForce_Gravity::PreApply(FAnimNode_KawaiiPhysics& Node,
+                                                    const USkeletalMeshComponent* SkelComp)
+{
+	Super::PreApply(Node, SkelComp);
+
+	Force = bUseOverrideGravityDirection ? OverrideGravityDirection : FVector(0, 0, -1.0f);
+
+	// For Character's Custom Gravity Direction
+	if (const ACharacter* Character = Cast<ACharacter>(SkelComp->GetOwner()))
+	{
+#if	ENGINE_MAJOR_VERSION == 5 && ENGINE_MINOR_VERSION >= 3
+		if (bUseCharacterGravityDirection)
+		{
+			Force = Character->GetGravityDirection();
+		}
+#endif
+
+		if (bUseCharacterGravityScale)
+		{
+			if (const UCharacterMovementComponent* CharacterMovementComponent = Character->
+				GetCharacterMovement())
+			{
+				Force *= CharacterMovementComponent->GetGravityZ();
+			}
+		}
+	}
+
+	Force *= RandomizedForceScale;
+	Force = ComponentTransform.InverseTransformVector(Force);
+}
+
+void FKawaiiPhysics_ExternalForce_Gravity::Apply(FKawaiiPhysicsModifyBone& Bone, FAnimNode_KawaiiPhysics& Node,
+                                                 const FComponentSpacePoseContext& PoseContext,
+                                                 const FTransform& BoneTM)
+{
+	if (!CanApply(Bone))
+	{
+		return;
+	}
+
+	SCOPE_CYCLE_COUNTER(STAT_KawaiiPhysics_ExternalForce_Gravity_Apply);
+
+	float ForceRate = 1.0f;
+	if (const auto Curve = ForceRateByBoneLengthRate.GetRichCurve(); !Curve->IsEmpty())
+	{
+		ForceRate = Curve->Eval(Bone.LengthRateFromRoot);
+	}
+
+	Bone.Location += 0.5f * Force * ForceRate * Node.DeltaTime * Node.DeltaTime;
+
+#if ENABLE_ANIM_DEBUG
+	BoneForceMap.Add(Bone.BoneRef.BoneName, Force * ForceRate);
+	AnimDrawDebug(Bone, Node, PoseContext);
+#endif
+}
+
+///
+/// Curve
+///
+void FKawaiiPhysics_ExternalForce_Curve::InitMaxCurveTime()
+{
+	if (const FRichCurve* CurveX = ForceCurve.GetRichCurve(0); CurveX && !CurveX->IsEmpty())
+	{
+		MaxCurveTime = FMath::Max(MaxCurveTime, CurveX->GetLastKey().Time);
+	}
+	if (const FRichCurve* CurveY = ForceCurve.GetRichCurve(1); CurveY && !CurveY->IsEmpty())
+	{
+		MaxCurveTime = FMath::Max(MaxCurveTime, CurveY->GetLastKey().Time);
+	}
+	if (const FRichCurve* CurveZ = ForceCurve.GetRichCurve(2); CurveZ && !CurveZ->IsEmpty())
+	{
+		MaxCurveTime = FMath::Max(MaxCurveTime, CurveZ->GetLastKey().Time);
+	}
+}
+
+void FKawaiiPhysics_ExternalForce_Curve::Initialize(const FAnimationInitializeContext& Context)
+{
+	FKawaiiPhysics_ExternalForce::Initialize(Context);
+
+	InitMaxCurveTime();
+}
+
+void FKawaiiPhysics_ExternalForce_Curve::PreApply(FAnimNode_KawaiiPhysics& Node, const USkeletalMeshComponent* SkelComp)
+{
+	Super::PreApply(Node, SkelComp);
+
+#if WITH_EDITOR
+	InitMaxCurveTime();
+#endif
+
+	PrevTime = Time;
+
+	if (CurveEvaluateType == EExternalForceCurveEvaluateType::Single)
+	{
+		Time += Node.DeltaTime * TimeScale;
+		if (MaxCurveTime > 0 && Time > MaxCurveTime)
+		{
+			Time = FMath::Fmod(Time, MaxCurveTime);
+		}
+		Force = ForceCurve.GetValue(Time) * RandomizedForceScale;
+	}
+	else
+	{
+		TArray<FVector> CurveValues;
+		const float SubStep = Node.DeltaTime * TimeScale / SubstepCount;
+
+		for (int i = 0; i < SubstepCount; ++i)
+		{
+			Time += SubStep;
+			if (MaxCurveTime > 0 && Time > MaxCurveTime)
+			{
+				Time = FMath::Fmod(Time, MaxCurveTime);
+			}
+			CurveValues.Add(ForceCurve.GetValue(Time));
+		}
+
+		Force = FVector::ZeroVector;
+		switch (CurveEvaluateType)
+		{
+		case EExternalForceCurveEvaluateType::Average:
+			for (const auto& CurveValue : CurveValues)
+			{
+				Force += CurveValue;
+			}
+			Force /= static_cast<float>(SubstepCount);
+
+			break;
+
+		case EExternalForceCurveEvaluateType::Max:
+			Force = FVector(FLT_MIN);
+			for (const auto& CurveValue : CurveValues)
+			{
+				Force = FVector::Max(Force, CurveValue);
+			}
+			break;
+		case EExternalForceCurveEvaluateType::Min:
+			Force = FVector(FLT_MAX);
+			for (const auto& CurveValue : CurveValues)
+			{
+				Force = FVector::Min(Force, CurveValue);
+			}
+			break;
+		default:
+			break;
+		}
+
+		Force *= RandomizedForceScale;
+	}
+
+	if (ExternalForceSpace == EExternalForceSpace::WorldSpace)
+	{
+		Force = ComponentTransform.InverseTransformVector(Force);
+	}
+}
+
+void FKawaiiPhysics_ExternalForce_Curve::Apply(FKawaiiPhysicsModifyBone& Bone, FAnimNode_KawaiiPhysics& Node,
+                                               const FComponentSpacePoseContext& PoseContext, const FTransform& BoneTM)
+{
+	if (!CanApply(Bone))
+	{
+		return;
+	}
+
+	SCOPE_CYCLE_COUNTER(STAT_KawaiiPhysics_ExternalForce_Curve_Apply);
+
+	float ForceRate = 1.0f;
+	if (const auto Curve = ForceRateByBoneLengthRate.GetRichCurve(); !Curve->IsEmpty())
+	{
+		ForceRate = Curve->Eval(Bone.LengthRateFromRoot);
+	}
+
+	if (ExternalForceSpace == EExternalForceSpace::BoneSpace)
+	{
+		const FVector BoneForce = BoneTM.TransformVector(Force);
+		Bone.Location += BoneForce * ForceRate * Node.DeltaTime;
+
+#if ENABLE_ANIM_DEBUG
+		BoneForceMap.Add(Bone.BoneRef.BoneName, BoneForce * ForceRate);
+#endif
+	}
+	else
+	{
+		Bone.Location += Force * ForceRate * Node.DeltaTime;
+
+#if ENABLE_ANIM_DEBUG
+		BoneForceMap.Add(Bone.BoneRef.BoneName, Force * ForceRate);
+#endif
+	}
+
+#if ENABLE_ANIM_DEBUG
+	AnimDrawDebug(Bone, Node, PoseContext);
+#endif
+}
+
+void FKawaiiPhysics_ExternalForce_Wind::PreApply(FAnimNode_KawaiiPhysics& Node, const USkeletalMeshComponent* SkelComp)
+{
+	Super::PreApply(Node, SkelComp);
+
+	World = SkelComp ? SkelComp->GetWorld() : nullptr;
+}
+
+void FKawaiiPhysics_ExternalForce_Wind::Apply(FKawaiiPhysicsModifyBone& Bone, FAnimNode_KawaiiPhysics& Node,
+                                              const FComponentSpacePoseContext& PoseContext, const FTransform& BoneTM)
+{
+	const FSceneInterface* Scene = World && World->Scene ? World->Scene : nullptr;
+	if (!CanApply(Bone) || !Scene)
+	{
+		return;
+	}
+
+	SCOPE_CYCLE_COUNTER(STAT_KawaiiPhysics_ExternalForce_Wind_Apply);
+
+	float ForceRate = 1.0f;
+	if (const auto Curve = ForceRateByBoneLengthRate.GetRichCurve(); !Curve->IsEmpty())
+	{
+		ForceRate = Curve->Eval(Bone.LengthRateFromRoot);
+	}
+
+	FVector WindDirection = FVector::ZeroVector;
+	float WindSpeed, WindMinGust, WindMaxGust = 0.0f;
+	Scene->GetWindParameters(ComponentTransform.TransformPosition(Bone.PoseLocation), WindDirection,
+	                         WindSpeed, WindMinGust, WindMaxGust);
+	WindDirection = ComponentTransform.InverseTransformVector(WindDirection);
+	WindDirection *= WindSpeed;
+
+	Bone.Location += WindDirection * ForceRate * RandomizedForceScale * Node.DeltaTime;
+
+#if ENABLE_ANIM_DEBUG
+	BoneForceMap.Add(Bone.BoneRef.BoneName, WindDirection * ForceRate * RandomizedForceScale);
+	AnimDrawDebug(Bone, Node, PoseContext);
+#endif
+}

Plugins/KawaiiPhysics/Source/KawaiiPhysics/Private/KawaiiPhysicsLibrary.cpp

@@ -0,0 +1,348 @@
+// KawaiiPhysics : Copyright (c) 2019-2024 pafuhana1213, MIT License
+
+#include "KawaiiPhysicsLibrary.h"
+
+#include "AnimNode_KawaiiPhysics.h"
+#include "BlueprintGameplayTagLibrary.h"
+#include "KawaiiPhysicsExternalForce.h"
+
+#include UE_INLINE_GENERATED_CPP_BY_NAME(KawaiiPhysicsLibrary)
+
+DEFINE_LOG_CATEGORY_STATIC(LogKawaiiPhysicsLibrary, Verbose, All);
+
+FKawaiiPhysicsReference UKawaiiPhysicsLibrary::ConvertToKawaiiPhysics(const FAnimNodeReference& Node,
+                                                                      EAnimNodeReferenceConversionResult& Result)
+{
+	return FAnimNodeReference::ConvertToType<FKawaiiPhysicsReference>(Node, Result);
+}
+
+bool UKawaiiPhysicsLibrary::CollectKawaiiPhysicsNodes(TArray<FKawaiiPhysicsReference>& Nodes,
+                                                      UAnimInstance* AnimInstance,
+                                                      const FGameplayTagContainer& FilterTags, bool bFilterExactMatch)
+{
+	if (!ensure(AnimInstance && AnimInstance->GetClass()))
+	{
+		return false;
+	}
+
+	bool bResult = false;
+	if (const IAnimClassInterface* AnimClassInterface =
+		IAnimClassInterface::GetFromClass((AnimInstance->GetClass())))
+	{
+		const TArray<FStructProperty*>& AnimNodeProperties = AnimClassInterface->GetAnimNodeProperties();
+		for (int i = 0; i < AnimNodeProperties.Num(); ++i)
+		{
+			if (AnimNodeProperties[i]->Struct->
+			                           IsChildOf(FKawaiiPhysicsReference::FInternalNodeType::StaticStruct()))
+			{
+				EAnimNodeReferenceConversionResult Result;
+				FKawaiiPhysicsReference KawaiiPhysicsReference = ConvertToKawaiiPhysics(
+					FAnimNodeReference(AnimInstance, i), Result);
+
+				if (Result == EAnimNodeReferenceConversionResult::Succeeded)
+				{
+					auto& Tag = KawaiiPhysicsReference.GetAnimNode<FAnimNode_KawaiiPhysics>().KawaiiPhysicsTag;
+					if (FilterTags.IsEmpty() || UBlueprintGameplayTagLibrary::MatchesAnyTags(
+						Tag, FilterTags, bFilterExactMatch))
+					{
+						Nodes.Add(KawaiiPhysicsReference);
+						bResult = true;
+					}
+				}
+			}
+		}
+	}
+
+	return bResult;
+}
+
+bool UKawaiiPhysicsLibrary::CollectKawaiiPhysicsNodes(TArray<FKawaiiPhysicsReference>& Nodes,
+                                                      USkeletalMeshComponent* MeshComp,
+                                                      const FGameplayTagContainer& FilterTags, bool bFilterExactMatch)
+{
+	if (!ensure(MeshComp))
+	{
+		return false;
+	}
+
+	const int NodeNum = Nodes.Num();
+
+	if (UAnimInstance* AnimInstance = MeshComp->GetAnimInstance())
+	{
+		CollectKawaiiPhysicsNodes(Nodes, AnimInstance, FilterTags,
+		                          bFilterExactMatch);
+	}
+
+	const TArray<UAnimInstance*>& LinkedInstances =
+		const_cast<const USkeletalMeshComponent*>(MeshComp)->GetLinkedAnimInstances();
+	for (UAnimInstance* LinkedInstance : LinkedInstances)
+	{
+		CollectKawaiiPhysicsNodes(Nodes, LinkedInstance, FilterTags,
+		                          bFilterExactMatch);
+	}
+
+	if (UAnimInstance* PostProcessAnimInstance = MeshComp->GetPostProcessInstance())
+	{
+		CollectKawaiiPhysicsNodes(Nodes, PostProcessAnimInstance, FilterTags,
+		                          bFilterExactMatch);
+	}
+
+	return NodeNum != Nodes.Num();
+}
+
+FKawaiiPhysicsReference UKawaiiPhysicsLibrary::ResetDynamics(const FKawaiiPhysicsReference& KawaiiPhysics)
+{
+	KawaiiPhysics.CallAnimNodeFunction<FAnimNode_KawaiiPhysics>(
+		TEXT("ResetDynamics"),
+		[](FAnimNode_KawaiiPhysics& InKawaiiPhysics)
+		{
+			InKawaiiPhysics.ResetDynamics(ETeleportType::ResetPhysics);
+		});
+
+	return KawaiiPhysics;
+}
+
+
+FKawaiiPhysicsReference UKawaiiPhysicsLibrary::SetRootBoneName(const FKawaiiPhysicsReference& KawaiiPhysics,
+                                                               FName& RootBoneName)
+{
+	KawaiiPhysics.CallAnimNodeFunction<FAnimNode_KawaiiPhysics>(
+		TEXT("SetRootBoneName"),
+		[RootBoneName](FAnimNode_KawaiiPhysics& InKawaiiPhysics)
+		{
+			InKawaiiPhysics.RootBone = FBoneReference(RootBoneName);
+		});
+
+	return KawaiiPhysics;
+}
+
+FName UKawaiiPhysicsLibrary::GetRootBoneName(const FKawaiiPhysicsReference& KawaiiPhysics)
+{
+	FName RootBoneName;
+
+	KawaiiPhysics.CallAnimNodeFunction<FAnimNode_KawaiiPhysics>(
+		TEXT("GetRootBoneName"),
+		[&RootBoneName](FAnimNode_KawaiiPhysics& InKawaiiPhysics)
+		{
+			RootBoneName = InKawaiiPhysics.RootBone.BoneName;
+		});
+
+	return RootBoneName;
+}
+
+FKawaiiPhysicsReference UKawaiiPhysicsLibrary::SetExcludeBoneNames(const FKawaiiPhysicsReference& KawaiiPhysics,
+                                                                   TArray<FName>& ExcludeBoneNames)
+{
+	KawaiiPhysics.CallAnimNodeFunction<FAnimNode_KawaiiPhysics>(
+		TEXT("SetExcludeBoneNames"),
+		[&ExcludeBoneNames](FAnimNode_KawaiiPhysics& InKawaiiPhysics)
+		{
+			InKawaiiPhysics.ExcludeBones.Empty();
+			for (auto& ExcludeBoneName : ExcludeBoneNames)
+			{
+				InKawaiiPhysics.ExcludeBones.Add(FBoneReference(ExcludeBoneName));
+			}
+		});
+
+	return KawaiiPhysics;
+}
+
+TArray<FName> UKawaiiPhysicsLibrary::GetExcludeBoneNames(const FKawaiiPhysicsReference& KawaiiPhysics)
+{
+	TArray<FName> ExcludeBoneNames;
+
+	KawaiiPhysics.CallAnimNodeFunction<FAnimNode_KawaiiPhysics>(
+		TEXT("GetExcludeBoneNames"),
+		[&ExcludeBoneNames](FAnimNode_KawaiiPhysics& InKawaiiPhysics)
+		{
+			for (auto& ExcludeBone : InKawaiiPhysics.ExcludeBones)
+			{
+				ExcludeBoneNames.Add(ExcludeBone.BoneName);
+			}
+		});
+
+	return ExcludeBoneNames;
+}
+
+FKawaiiPhysicsReference UKawaiiPhysicsLibrary::AddExternalForceWithExecResult(
+	EKawaiiPhysicsAccessExternalForceResult& ExecResult,
+	const FKawaiiPhysicsReference& KawaiiPhysics,
+	FInstancedStruct& ExternalForce, UObject* Owner)
+{
+	ExecResult = EKawaiiPhysicsAccessExternalForceResult::NotValid;
+
+	if (AddExternalForce(KawaiiPhysics, ExternalForce, Owner))
+	{
+		ExecResult = EKawaiiPhysicsAccessExternalForceResult::Valid;
+	}
+
+	return KawaiiPhysics;
+}
+
+bool UKawaiiPhysicsLibrary::AddExternalForce(const FKawaiiPhysicsReference& KawaiiPhysics,
+                                             FInstancedStruct& ExternalForce, UObject* Owner, bool bIsOneShot)
+{
+	bool bResult = false;
+
+	if (ExternalForce.IsValid())
+	{
+		if (auto* ExternalForcePtr = ExternalForce.GetMutablePtr<FKawaiiPhysics_ExternalForce>())
+		{
+			ExternalForcePtr->ExternalOwner = Owner;
+			ExternalForcePtr->bIsOneShot = bIsOneShot;
+
+			KawaiiPhysics.CallAnimNodeFunction<FAnimNode_KawaiiPhysics>(
+				TEXT("AddExternalForce"),
+				[&](FAnimNode_KawaiiPhysics& InKawaiiPhysics)
+				{
+					InKawaiiPhysics.ExternalForces.Add(ExternalForce);
+				});
+
+			bResult = true;
+		}
+	}
+
+	return bResult;
+}
+
+bool UKawaiiPhysicsLibrary::AddExternalForcesToComponent(USkeletalMeshComponent* MeshComp,
+                                                         TArray<FInstancedStruct>& ExternalForces,
+                                                         UObject* Owner,
+                                                         FGameplayTagContainer& FilterTags,
+                                                         bool bFilterExactMatch, bool bIsOneShot)
+{
+	bool bResult = false;
+
+	TArray<FKawaiiPhysicsReference> KawaiiPhysicsReferences;
+	CollectKawaiiPhysicsNodes(KawaiiPhysicsReferences, MeshComp, FilterTags, bFilterExactMatch);
+	for (auto& KawaiiPhysicsReference : KawaiiPhysicsReferences)
+	{
+		for (auto& AExternalForce : ExternalForces)
+		{
+			if (AExternalForce.IsValid())
+			{
+				if (AddExternalForce(KawaiiPhysicsReference, AExternalForce, Owner, bIsOneShot))
+				{
+					bResult = true;
+				}
+			}
+		}
+	}
+
+	return bResult;
+}
+
+bool UKawaiiPhysicsLibrary::RemoveExternalForcesFromComponent(USkeletalMeshComponent* MeshComp, UObject* Owner,
+                                                              FGameplayTagContainer& FilterTags, bool bFilterExactMatch)
+{
+	bool bResult = false;
+
+	TArray<FKawaiiPhysicsReference> KawaiiPhysicsReferences;
+	CollectKawaiiPhysicsNodes(KawaiiPhysicsReferences, MeshComp, FilterTags, bFilterExactMatch);
+	for (auto& KawaiiPhysicsReference : KawaiiPhysicsReferences)
+	{
+		KawaiiPhysicsReference.CallAnimNodeFunction<FAnimNode_KawaiiPhysics>(
+			TEXT("RemoveExternalForce"),
+			[&](FAnimNode_KawaiiPhysics& InKawaiiPhysics)
+			{
+				const int32 NumRemoved = InKawaiiPhysics.ExternalForces.RemoveAll([&](FInstancedStruct& InstancedStruct)
+				{
+					const auto* ExternalForcePtr = InstancedStruct.GetMutablePtr<FKawaiiPhysics_ExternalForce>();
+					return ExternalForcePtr && ExternalForcePtr->ExternalOwner == Owner;
+				});
+
+				if (NumRemoved > 0)
+				{
+					bResult = true;
+				}
+			});
+	}
+
+	return bResult;
+}
+
+DEFINE_FUNCTION(UKawaiiPhysicsLibrary::execSetExternalForceWildcardProperty)
+{
+	P_GET_ENUM_REF(EKawaiiPhysicsAccessExternalForceResult, ExecResult);
+	P_GET_STRUCT_REF(FKawaiiPhysicsReference, KawaiiPhysics);
+	P_GET_PROPERTY(FIntProperty, ExternalForceIndex);
+	P_GET_STRUCT_REF(FName, PropertyName);
+
+	ExecResult = EKawaiiPhysicsAccessExternalForceResult::NotValid;
+
+	// Read wildcard Value input.
+	Stack.MostRecentPropertyAddress = nullptr;
+	Stack.MostRecentPropertyContainer = nullptr;
+	Stack.StepCompiledIn<FStructProperty>(nullptr);
+
+	const FProperty* ValueProp = CastField<FProperty>(Stack.MostRecentProperty);
+	void* ValuePtr = Stack.MostRecentPropertyAddress;
+
+	KawaiiPhysics.CallAnimNodeFunction<FAnimNode_KawaiiPhysics>(
+		TEXT("GetExternalForceWildcardProperty"),
+		[&ExecResult, &ExternalForceIndex, &PropertyName, &ValuePtr](FAnimNode_KawaiiPhysics& InKawaiiPhysics)
+		{
+			if (InKawaiiPhysics.ExternalForces.IsValidIndex(ExternalForceIndex) &&
+				InKawaiiPhysics.ExternalForces[ExternalForceIndex].IsValid())
+			{
+				const auto* ScriptStruct = InKawaiiPhysics.ExternalForces[ExternalForceIndex].GetScriptStruct();
+				auto& Force = InKawaiiPhysics.ExternalForces[ExternalForceIndex].GetMutable<
+					FKawaiiPhysics_ExternalForce>();
+
+				if (const FProperty* Property = FindFProperty<FProperty>(ScriptStruct, PropertyName))
+				{
+					Property->CopyCompleteValue(Property->ContainerPtrToValuePtr<uint8>(&Force), ValuePtr);
+					ExecResult = EKawaiiPhysicsAccessExternalForceResult::Valid;
+				}
+			}
+		});
+
+	P_FINISH;
+}
+
+DEFINE_FUNCTION(UKawaiiPhysicsLibrary::execGetExternalForceWildcardProperty)
+{
+	P_GET_ENUM_REF(EKawaiiPhysicsAccessExternalForceResult, ExecResult);
+	P_GET_STRUCT_REF(FKawaiiPhysicsReference, KawaiiPhysics);
+	P_GET_PROPERTY(FIntProperty, ExternalForceIndex);
+	P_GET_STRUCT_REF(FName, PropertyName);
+
+	ExecResult = EKawaiiPhysicsAccessExternalForceResult::NotValid;
+
+	// Read wildcard Value input.
+	Stack.MostRecentPropertyAddress = nullptr;
+	Stack.MostRecentPropertyContainer = nullptr;
+	Stack.StepCompiledIn<FStructProperty>(nullptr);
+
+	const FProperty* ValueProp = CastField<FProperty>(Stack.MostRecentProperty);
+	void* ValuePtr = Stack.MostRecentPropertyAddress;
+
+	void* Result = nullptr;
+	KawaiiPhysics.CallAnimNodeFunction<FAnimNode_KawaiiPhysics>(
+		TEXT("GetExternalForceWildcardProperty"),
+		[&Result, &ExecResult, &ExternalForceIndex, &PropertyName](FAnimNode_KawaiiPhysics& InKawaiiPhysics)
+		{
+			if (InKawaiiPhysics.ExternalForces.IsValidIndex(ExternalForceIndex) &&
+				InKawaiiPhysics.ExternalForces[ExternalForceIndex].IsValid())
+			{
+				const auto* ScriptStruct = InKawaiiPhysics.ExternalForces[ExternalForceIndex].GetScriptStruct();
+				auto& Force = InKawaiiPhysics.ExternalForces[ExternalForceIndex].GetMutable<
+					FKawaiiPhysics_ExternalForce>();
+
+				if (const FProperty* Property = FindFProperty<FProperty>(ScriptStruct, PropertyName))
+				{
+					Result = Property->ContainerPtrToValuePtr<void>(&Force);
+					ExecResult = EKawaiiPhysicsAccessExternalForceResult::Valid;
+				}
+			}
+		});
+
+	P_FINISH;
+
+	if (ValuePtr && Result)
+	{
+		P_NATIVE_BEGIN;
+			ValueProp->CopyCompleteValue(ValuePtr, Result);
+		P_NATIVE_END;
+	}
+}

Plugins/KawaiiPhysics/Source/KawaiiPhysics/Private/KawaiiPhysicsLimitsDataAsset.cpp

@@ -0,0 +1,203 @@
+// KawaiiPhysics : Copyright (c) 2019-2024 pafuhana1213, MIT License
+
+
+#include "KawaiiPhysicsLimitsDataAsset.h"
+#include "AnimNode_KawaiiPhysics.h"
+#include "KawaiiPhysics.h"
+
+#include UE_INLINE_GENERATED_CPP_BY_NAME(KawaiiPhysicsLimitsDataAsset)
+
+DEFINE_LOG_CATEGORY(LogKawaiiPhysics);
+
+struct FCollisionLimitDataCustomVersion
+{
+	enum Type
+	{
+		// FNameからFBoneReferenceに移行
+		ChangeToBoneReference = 0,
+		DeprecateLimitData,
+
+		// ------------------------------------------------------
+		VersionPlusOne,
+		LatestVersion = VersionPlusOne - 1
+	};
+
+	// The GUID for this custom version number
+	const static FGuid GUID;
+
+private:
+	FCollisionLimitDataCustomVersion()
+	{
+	}
+};
+
+const FGuid FCollisionLimitDataCustomVersion::GUID(0x3A1F7B2E, 0x7B9D6E8C, 0x4C2A9F1D, 0x85B3E4F1);
+FCustomVersionRegistration GRegisterCollisionLimitDataCustomVersion(FCollisionLimitDataCustomVersion::GUID,
+                                                                    FCollisionLimitDataCustomVersion::LatestVersion,
+                                                                    TEXT("CollisionLimitData"));
+
+#if WITH_EDITOR
+template <typename CollisionLimitType>
+void UpdateCollisionLimit(TArray<CollisionLimitType>& CollisionLimitsData, const CollisionLimitType& NewLimit)
+{
+	for (auto& LimitData : CollisionLimitsData)
+	{
+		if (LimitData.Guid == NewLimit.Guid)
+		{
+			LimitData = NewLimit;
+			break;
+		}
+	}
+}
+
+
+void UKawaiiPhysicsLimitsDataAsset::UpdateLimit(FCollisionLimitBase* Limit)
+{
+	switch (Limit->Type)
+	{
+	case ECollisionLimitType::Spherical:
+		UpdateCollisionLimit(SphericalLimits, *static_cast<FSphericalLimit*>(Limit));
+		break;
+	case ECollisionLimitType::Capsule:
+		UpdateCollisionLimit(CapsuleLimits, *static_cast<FCapsuleLimit*>(Limit));
+		break;
+	case ECollisionLimitType::Box:
+		UpdateCollisionLimit(BoxLimits, *static_cast<FBoxLimit*>(Limit));
+		break;
+	case ECollisionLimitType::Planar:
+		UpdateCollisionLimit(PlanarLimits, *static_cast<FPlanarLimit*>(Limit));
+		break;
+	case ECollisionLimitType::None:
+		break;
+	default:
+		break;
+	}
+
+	MarkPackageDirty();
+}
+
+template <typename CollisionLimitDataType, typename CollisionLimitType>
+void SyncCollisionLimits(const TArray<CollisionLimitDataType>& CollisionLimitData,
+                         TArray<CollisionLimitType>& CollisionLimits)
+{
+	CollisionLimits.Empty();
+	for (const auto& Data : CollisionLimitData)
+	{
+		CollisionLimits.Add(Data.Convert());
+	}
+}
+
+void UKawaiiPhysicsLimitsDataAsset::Sync()
+{
+	SyncCollisionLimits(SphericalLimitsData, SphericalLimits);
+	SyncCollisionLimits(CapsuleLimitsData, CapsuleLimits);
+	SyncCollisionLimits(BoxLimitsData, BoxLimits);
+	SyncCollisionLimits(PlanarLimitsData, PlanarLimits);
+}
+
+void UKawaiiPhysicsLimitsDataAsset::PostEditChangeChainProperty(FPropertyChangedChainEvent& PropertyChangedEvent)
+{
+	Super::PostEditChangeChainProperty(PropertyChangedEvent);
+
+
+	FName ArrayPropertyName = PropertyChangedEvent.MemberProperty
+		                          ? PropertyChangedEvent.MemberProperty->GetFName()
+		                          : NAME_None;
+	if (PropertyChangedEvent.ChangeType == EPropertyChangeType::ValueSet &&
+		PropertyChangedEvent.PropertyChain.GetActiveMemberNode())
+	{
+		ArrayPropertyName = PropertyChangedEvent.PropertyChain.GetActiveMemberNode()->GetValue()->GetFName();
+	}
+
+	auto UpdateLimits = [&](auto& Limits)
+	{
+		int32 ArrayIndex = PropertyChangedEvent.GetArrayIndex(ArrayPropertyName.ToString());
+
+		if (PropertyChangedEvent.ChangeType == EPropertyChangeType::ArrayAdd ||
+			PropertyChangedEvent.ChangeType == EPropertyChangeType::ValueSet)
+		{
+			Limits[ArrayIndex].SourceType = ECollisionSourceType::DataAsset;
+		}
+		else if (PropertyChangedEvent.ChangeType == EPropertyChangeType::Duplicate)
+		{
+			Limits[ArrayIndex].Guid = FGuid::NewGuid();
+		}
+	};
+
+	if (ArrayPropertyName == GET_MEMBER_NAME_CHECKED(UKawaiiPhysicsLimitsDataAsset, SphericalLimits))
+	{
+		UpdateLimits(SphericalLimits);
+	}
+	else if (ArrayPropertyName == GET_MEMBER_NAME_CHECKED(UKawaiiPhysicsLimitsDataAsset, CapsuleLimits))
+	{
+		UpdateLimits(CapsuleLimits);
+	}
+	else if (ArrayPropertyName == GET_MEMBER_NAME_CHECKED(UKawaiiPhysicsLimitsDataAsset, BoxLimits))
+	{
+		UpdateLimits(BoxLimits);
+	}
+	else if (ArrayPropertyName == GET_MEMBER_NAME_CHECKED(UKawaiiPhysicsLimitsDataAsset, PlanarLimits))
+	{
+		UpdateLimits(PlanarLimits);
+	}
+
+	OnLimitsChanged.Broadcast(PropertyChangedEvent);
+}
+#endif
+
+#if WITH_EDITORONLY_DATA
+void UKawaiiPhysicsLimitsDataAsset::Serialize(FStructuredArchiveRecord Record)
+{
+	Super::Serialize(Record);
+
+	Record.GetUnderlyingArchive().UsingCustomVersion(FCollisionLimitDataCustomVersion::GUID);
+}
+#endif
+
+USkeleton* UKawaiiPhysicsLimitsDataAsset::GetSkeleton(bool& bInvalidSkeletonIsError,
+                                                      const IPropertyHandle* PropertyHandle)
+{
+#if WITH_EDITORONLY_DATA
+	return Skeleton;
+#else
+	return nullptr;
+#endif
+}
+
+void UKawaiiPhysicsLimitsDataAsset::PostLoad()
+{
+	Super::PostLoad();
+
+	if (GetLinkerCustomVersion(FCollisionLimitDataCustomVersion::GUID) <
+		FCollisionLimitDataCustomVersion::ChangeToBoneReference)
+	{
+#if WITH_EDITORONLY_DATA
+		for (auto& Data : SphericalLimitsData)
+		{
+			Data.DrivingBoneReference = FBoneReference(Data.DrivingBoneName);
+		}
+		for (auto& Data : CapsuleLimitsData)
+		{
+			Data.DrivingBoneReference = FBoneReference(Data.DrivingBoneName);
+		}
+		for (auto& Data : BoxLimitsData)
+		{
+			Data.DrivingBoneReference = FBoneReference(Data.DrivingBoneName);
+		}
+		for (auto& Data : PlanarLimitsData)
+		{
+			Data.DrivingBoneReference = FBoneReference(Data.DrivingBoneName);
+		}
+		UE_LOG(LogKawaiiPhysics, Log, TEXT("Update : BoneName -> BoneReference (%s)"), *this->GetName());
+#endif
+	}
+
+	if (GetLinkerCustomVersion(FCollisionLimitDataCustomVersion::GUID) <
+		FCollisionLimitDataCustomVersion::DeprecateLimitData)
+	{
+#if WITH_EDITORONLY_DATA
+		Sync();
+		UE_LOG(LogKawaiiPhysics, Log, TEXT("Update : Deprecate LimitData (%s)"), *this->GetName());
+#endif
+	}
+}

Plugins/KawaiiPhysics/Source/KawaiiPhysics/Public/KawaiiPhysics.h

@@ -0,0 +1,16 @@
+// KawaiiPhysics : Copyright (c) 2019-2024 pafuhana1213, MIT License
+
+#pragma once
+
+#include "CoreMinimal.h"
+#include "Modules/ModuleInterface.h"
+
+DECLARE_LOG_CATEGORY_EXTERN(LogKawaiiPhysics, Log, All);
+
+class FKawaiiPhysicsModule : public IModuleInterface
+{
+public:
+	/** IModuleInterface implementation */
+	virtual void StartupModule() override;
+	virtual void ShutdownModule() override;
+};

Plugins/KawaiiPhysics/Source/KawaiiPhysics/Public/KawaiiPhysicsBoneConstraintsDataAsset.h

@@ -0,0 +1,124 @@
+// KawaiiPhysics : Copyright (c) 2019-2024 pafuhana1213, MIT License
+
+#pragma once
+
+#include "AnimNode_KawaiiPhysics.h"
+#include "Engine/DataAsset.h"
+#include "Interfaces/Interface_BoneReferenceSkeletonProvider.h"
+#include "KawaiiPhysicsBoneConstraintsDataAsset.generated.h"
+
+/**
+ * Struct representing the data for modifying bone constraints in KawaiiPhysics.
+ */
+USTRUCT(BlueprintType)
+struct KAWAIIPHYSICS_API FModifyBoneConstraintData
+{
+	GENERATED_BODY()
+
+	/** Name of the first bone (deprecated) */
+	UPROPERTY()
+	FName BoneName1;
+
+	/** Name of the second bone (deprecated) */
+	UPROPERTY()
+	FName BoneName2;
+
+	/** Reference to the first bone */
+	UPROPERTY(EditAnywhere, category = "KawaiiPhysics")
+	FBoneReference BoneReference1;
+
+	/** Reference to the second bone */
+	UPROPERTY(EditAnywhere, category = "KawaiiPhysics")
+	FBoneReference BoneReference2;
+
+	/** Whether to override the compliance type */
+	UPROPERTY(EditAnywhere, category = "KawaiiPhysics", meta=(InlineEditConditionToggle))
+	bool bOverrideCompliance = false;
+
+	/** The compliance type to use if overriding */
+	UPROPERTY(EditAnywhere, category = "KawaiiPhysics", meta=(EditCondition="bOverrideCompliance"))
+	EXPBDComplianceType ComplianceType = EXPBDComplianceType::Leather;
+
+	/**
+	 * Updates the bone constraint data with the given constraint.
+	 * @param BoneConstraint The bone constraint to update from.
+	 */
+	void Update(const FModifyBoneConstraint& BoneConstraint);
+};
+
+/**
+ * Struct representing a set of regex patterns for bones in KawaiiPhysics.
+ */
+USTRUCT(BlueprintType)
+struct FRegexPatternBoneSet
+{
+	GENERATED_BODY()
+
+	/** Regex pattern for the first bone */
+	UPROPERTY(EditAnywhere, Category="Helper")
+	FString RegexPatternBone1;
+
+	/** Regex pattern for the second bone */
+	UPROPERTY(EditAnywhere, Category="Helper")
+	FString RegexPatternBone2;
+};
+
+
+/**
+ * Data asset for managing bone constraints in KawaiiPhysics.
+ */
+UCLASS(Blueprintable)
+class KAWAIIPHYSICS_API UKawaiiPhysicsBoneConstraintsDataAsset : public UDataAsset,
+                                                                 public IBoneReferenceSkeletonProvider
+{
+	GENERATED_BODY()
+
+public:
+	/** Array of bone constraint data */
+	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Bone Constraint (Experimental)",
+		meta=(TitleProperty="{BoneReference1} - {BoneReference2}"))
+	TArray<FModifyBoneConstraintData> BoneConstraintsData;
+
+#if WITH_EDITORONLY_DATA
+
+	/** List of regex patterns for bones */
+	UPROPERTY(EditAnywhere, Category="Helper")
+	TArray<FRegexPatternBoneSet> RegexPatternList;
+
+	/** Preview skeleton for editor */
+	UPROPERTY(EditAnywhere, Category = "Skeleton")
+	TSoftObjectPtr<USkeleton> PreviewSkeleton;
+
+	/** List of preview bones */
+	UPROPERTY(VisibleAnywhere, Category = "Skeleton", meta= (EditCondition=false))
+	TArray<FBoneReference> PreviewBoneList;
+
+	/** String representation of the preview bone list */
+	UPROPERTY()
+	FString PreviewBoneListString;
+#endif
+
+	// Begin UObject Interface.
+	virtual void Serialize(FStructuredArchiveRecord Record) override;
+	virtual void PostLoad() override;
+	// End UObject Interface.
+
+	// IBoneReferenceSkeletonProvider interface
+	virtual USkeleton* GetSkeleton(bool& bInvalidSkeletonIsError, const IPropertyHandle* PropertyHandle) override;
+
+	/** Generates bone constraints based on the current data */
+	TArray<FModifyBoneConstraint> GenerateBoneConstraints();
+
+#if WITH_EDITOR
+
+	/** Applies regex patterns to the bone constraints */
+	UFUNCTION(BlueprintCallable, CallInEditor, Category="Helper")
+	void ApplyRegex();
+
+	/** Updates the preview bone list */
+	void UpdatePreviewBoneList();
+
+	/** Handles property changes in the editor */
+	virtual void PostEditChangeProperty(struct FPropertyChangedEvent& PropertyChangedEvent) override;
+#endif
+};

Plugins/KawaiiPhysics/Source/KawaiiPhysics/Public/KawaiiPhysicsCustomExternalForce.h

@@ -0,0 +1,50 @@
+// KawaiiPhysics : Copyright (c) 2019-2024 pafuhana1213, MIT License
+
+#pragma once
+#include "AnimNode_KawaiiPhysics.h"
+#include "KawaiiPhysicsCustomExternalForce.generated.h"
+
+
+UCLASS(Abstract, Blueprintable, EditInlineNew, CollapseCategories)
+class KAWAIIPHYSICS_API UKawaiiPhysics_CustomExternalForce : public UObject
+{
+	GENERATED_BODY()
+
+public:
+	UPROPERTY(EditAnywhere, BlueprintReadWrite, meta=(DisplayPriority=1), Category="KawaiiPhysics|CustomExternalForce")
+	bool bIsEnabled = true;
+
+	UPROPERTY(EditAnywhere, BlueprintReadWrite, meta=(DisplayPriority=1), Category="KawaiiPhysics|CustomExternalForce")
+	bool bDrawDebug = false;
+
+public:
+	UFUNCTION(BlueprintNativeEvent)
+	void PreApply(UPARAM(ref) FAnimNode_KawaiiPhysics& Node,
+	              const USkeletalMeshComponent* SkelComp);
+
+	virtual void PreApply_Implementation(
+		UPARAM(ref) FAnimNode_KawaiiPhysics& Node, const USkeletalMeshComponent* SkelComp)PURE_VIRTUAL(,);
+
+	UFUNCTION(BlueprintNativeEvent)
+	void Apply(UPARAM(ref) FAnimNode_KawaiiPhysics& Node, int32 ModifyBoneIndex,
+	           const USkeletalMeshComponent* SkelComp, const FTransform& BoneTransform);
+
+	virtual void Apply_Implementation(
+		UPARAM(ref) FAnimNode_KawaiiPhysics& Node, int32 ModifyBoneIndex, const USkeletalMeshComponent* SkelComp,
+		const FTransform& BoneTransform)
+	{
+	}
+
+	UFUNCTION(BlueprintCallable, Category="KawaiiPhysics|CustomExternalForce")
+	virtual bool IsDebugEnabled()
+	{
+#if ENABLE_ANIM_DEBUG
+		if (CVarAnimNodeKawaiiPhysicsDebug.GetValueOnAnyThread())
+		{
+			return bDrawDebug;
+		}
+#endif
+
+		return false;
+	}
+};

Plugins/KawaiiPhysics/Source/KawaiiPhysics/Public/KawaiiPhysicsExternalForce.h

@@ -0,0 +1,448 @@
+// KawaiiPhysics : Copyright (c) 2019-2024 pafuhana1213, MIT License
+
+#pragma once
+#include "AnimNode_KawaiiPhysics.h"
+#include "SceneManagement.h"
+#include "Curves/CurveVector.h"
+#include "KawaiiPhysicsExternalForce.generated.h"
+
+/**
+ * Enum representing the space in which external forces are simulated.
+ */
+UENUM(BlueprintType)
+enum class EExternalForceSpace : uint8
+{
+	/** Simulate in component space. Moving the entire skeletal mesh will have no affect on velocities */
+	ComponentSpace,
+	/** Simulate in world space. Moving the skeletal mesh will generate velocity changes */
+	WorldSpace,
+	/** Simulate in another bone space. Moving the entire skeletal mesh and individually modifying the base bone will have no affect on velocities */
+	BoneSpace,
+};
+
+/**
+ * Enum representing the evaluation type for external force curves.
+ */
+UENUM(BlueprintType)
+enum class EExternalForceCurveEvaluateType : uint8
+{
+	/** Evaluate the curve at a single point */
+	Single,
+	/** Evaluate the curve by averaging multiple points */
+	Average,
+	/** Evaluate the curve by taking the maximum value from multiple points */
+	Max,
+	/** Evaluate the curve by taking the minimum value from multiple points */
+	Min
+};
+
+
+///
+/// Base
+///
+USTRUCT(BlueprintType)
+struct KAWAIIPHYSICS_API FKawaiiPhysics_ExternalForce
+{
+	GENERATED_BODY()
+
+	/** Whether the external force is enabled */
+	UPROPERTY(EditAnywhere, BlueprintReadWrite, meta=(DisplayPriority=1), Category="KawaiiPhysics|ExternalForce")
+	bool bIsEnabled = true;
+
+	/** Whether to draw debug information for the external force */
+	UPROPERTY(EditAnywhere, BlueprintReadWrite, meta=(DisplayPriority=1), Category="KawaiiPhysics|ExternalForce")
+	bool bDrawDebug = false;
+
+	/** 
+	* 外力を適応するボーンを指定（＝指定しなかったボーンには適応しない）
+	* Specify the bones to which the external force will be applied (= the force will not be applied to bones that are not specified)
+	*/
+	UPROPERTY(EditAnywhere, meta=(DisplayPriority=1), Category="KawaiiPhysics|ExternalForce")
+	TArray<FBoneReference> ApplyBoneFilter;
+
+	/** 
+	* 外力を適応しないボーンを指定
+	* Specify the bones to which the external force will be NOT applied
+	*/
+	UPROPERTY(EditAnywhere, meta=(DisplayPriority=1), Category="KawaiiPhysics|ExternalForce")
+	TArray<FBoneReference> IgnoreBoneFilter;
+
+	/** The space in which the external force is simulated */
+	UPROPERTY(EditAnywhere, meta=(DisplayPriority=1, EditCondition=bCanSelectForceSpace, EditConditionHides),
+		Category="KawaiiPhysics|ExternalForce")
+	EExternalForceSpace ExternalForceSpace = EExternalForceSpace::WorldSpace;
+
+	/** Range for randomizing the force scale */
+	UPROPERTY(EditAnywhere, BlueprintReadWrite, meta=(DisplayPriority=1), Category="KawaiiPhysics|ExternalForce")
+	FFloatInterval RandomForceScaleRange = FFloatInterval(1.0f, 1.0f);
+
+	/** Owner of the external force */
+	UPROPERTY()
+	TObjectPtr<UObject> ExternalOwner;
+
+	/** Whether the external force is applied only once */
+	UPROPERTY()
+	bool bIsOneShot = false;
+
+#if ENABLE_ANIM_DEBUG
+	/** Length of the debug arrow */
+	float DebugArrowLength = 5.0f;
+
+	/** Size of the debug arrow */
+	float DebugArrowSize = 1.0f;
+
+	/** Offset for the debug arrow */
+	FVector DebugArrowOffset = FVector::Zero();
+
+	/** Map of bone names to forces for debugging */
+	TMap<FName, FVector> BoneForceMap;
+#endif
+
+protected:
+	/** Randomized scale of the force */
+	UPROPERTY()
+	float RandomizedForceScale = 0.0f;
+
+	/** The force vector */
+	UPROPERTY()
+	FVector Force = FVector::Zero();
+
+	/** Transform of the component */
+	UPROPERTY()
+	FTransform ComponentTransform;
+
+	/** Whether the force space can be selected */
+	UPROPERTY(VisibleAnywhere, BlueprintReadWrite, Category="KawaiiPhysics|ExternalForce")
+	bool bCanSelectForceSpace = true;
+
+public:
+	virtual ~FKawaiiPhysics_ExternalForce() = default;
+
+	virtual void Initialize(const FAnimationInitializeContext& Context)
+	{
+	}
+
+	/** Prepares the external force before applying it */
+	virtual void PreApply(FAnimNode_KawaiiPhysics& Node, const USkeletalMeshComponent* SkelComp)
+	{
+		ComponentTransform = SkelComp->GetComponentTransform();
+		RandomizedForceScale = FMath::RandRange(RandomForceScaleRange.Min, RandomForceScaleRange.Max);
+	}
+
+	/** Applies the external force to a bone */
+	virtual void Apply(FKawaiiPhysicsModifyBone& Bone, FAnimNode_KawaiiPhysics& Node,
+	                   const FComponentSpacePoseContext& PoseContext, const FTransform& BoneTM = FTransform::Identity)
+	{
+	}
+
+	/** Finalizes the external force after applying it */
+	virtual void PostApply(FAnimNode_KawaiiPhysics& Node)
+	{
+		if (bIsOneShot)
+		{
+			Node.ExternalForces.RemoveAll([&](FInstancedStruct& InstancedStruct)
+			{
+				const auto* ExternalForcePtr = InstancedStruct.GetMutablePtr<FKawaiiPhysics_ExternalForce>();
+				return ExternalForcePtr == this;
+			});
+		}
+	}
+
+	/** Checks if debug information should be drawn */
+	virtual bool IsDebugEnabled(bool bInPersona = false)
+	{
+		if (bInPersona)
+		{
+			return bDrawDebug && bIsEnabled;
+		}
+
+#if ENABLE_ANIM_DEBUG
+		if (CVarAnimNodeKawaiiPhysicsDebug.GetValueOnAnyThread())
+		{
+			return bDrawDebug && bIsEnabled;
+		}
+#endif
+
+		return false;
+	}
+
+#if ENABLE_ANIM_DEBUG
+	/** Draws debug information for the external force */
+	virtual void AnimDrawDebug(FKawaiiPhysicsModifyBone& Bone, FAnimNode_KawaiiPhysics& Node,
+	                           const FComponentSpacePoseContext& PoseContext)
+	{
+		if (IsDebugEnabled() && !Force.IsZero())
+		{
+			const auto AnimInstanceProxy = PoseContext.AnimInstanceProxy;
+			const FVector ModifyRootBoneLocationWS = AnimInstanceProxy->GetComponentTransform().TransformPosition(
+				Bone.Location);
+
+			AnimInstanceProxy->AnimDrawDebugDirectionalArrow(
+				ModifyRootBoneLocationWS + DebugArrowOffset,
+				ModifyRootBoneLocationWS + DebugArrowOffset + BoneForceMap.Find(Bone.BoneRef.BoneName)->GetSafeNormal()
+				*
+				DebugArrowLength,
+				DebugArrowSize, FColor::Red, false, 0.f, 2);
+		}
+	}
+#endif
+
+#if WITH_EDITOR
+	/** Draws debug information for the external force in edit mode */
+	virtual void AnimDrawDebugForEditMode(const FKawaiiPhysicsModifyBone& ModifyBone,
+	                                      const FAnimNode_KawaiiPhysics& Node, FPrimitiveDrawInterface* PDI)
+	{
+		if (IsDebugEnabled(true) && CanApply(ModifyBone) && !Force.IsNearlyZero() && BoneForceMap.Contains(
+			ModifyBone.BoneRef.BoneName))
+		{
+			const FTransform ArrowTransform = FTransform(
+				BoneForceMap.Find(ModifyBone.BoneRef.BoneName)->GetSafeNormal().ToOrientationRotator(),
+				ModifyBone.Location + DebugArrowOffset);
+			DrawDirectionalArrow(PDI, ArrowTransform.ToMatrixNoScale(), FColor::Red, DebugArrowLength, DebugArrowSize,
+			                     SDPG_Foreground, 1.0f);
+		}
+	}
+#endif
+
+protected:
+	/** Checks if the external force can be applied to a bone */
+	bool CanApply(const FKawaiiPhysicsModifyBone& Bone) const
+	{
+		if (!ApplyBoneFilter.IsEmpty() && !ApplyBoneFilter.Contains(Bone.BoneRef))
+		{
+			return false;
+		}
+
+		if (!IgnoreBoneFilter.IsEmpty() && IgnoreBoneFilter.Contains(Bone.BoneRef))
+		{
+			return false;
+		}
+
+		return true;
+	}
+};
+
+///
+/// Basic
+///
+USTRUCT(BlueprintType, DisplayName = "Basic")
+struct KAWAIIPHYSICS_API FKawaiiPhysics_ExternalForce_Basic : public FKawaiiPhysics_ExternalForce
+{
+	GENERATED_BODY()
+
+	/** Direction of the force */
+	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category="KawaiiPhysics|ExternalForce")
+	FVector ForceDir = FVector::Zero();
+
+	/** 
+	* 各ボーンに適用するForce Rateを補正。
+	* 「RootBoneから特定のボーンまでの長さ / RootBoneから末端のボーンまでの長さ」(0.0~1.0)の値におけるカーブの値をForceRateに乗算
+	* Corrects the Force Rate applied to each bone.
+	* Multiplies the ForceRate by the curve value for "Length from RootBone to specific bone / Length from RootBone to end bone" (0.0~1.0)
+	*/
+	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category="KawaiiPhysics|ExternalForce")
+	FRuntimeFloatCurve ForceRateByBoneLengthRate;
+
+	/** Interval for applying the force */
+	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category="KawaiiPhysics|ExternalForce")
+	float Interval = 0.0f;
+
+	virtual void PreApply(FAnimNode_KawaiiPhysics& Node, const USkeletalMeshComponent* SkelComp) override;
+	virtual void Apply(FKawaiiPhysicsModifyBone& Bone, FAnimNode_KawaiiPhysics& Node,
+	                   const FComponentSpacePoseContext& PoseContext,
+	                   const FTransform& BoneTM = FTransform::Identity) override;
+
+private:
+	/** Current time */
+	UPROPERTY()
+	float Time = 0.0f;
+
+	/** Previous time */
+	UPROPERTY()
+	float PrevTime = 0.0f;
+};
+
+///
+/// Gravity
+///
+USTRUCT(BlueprintType, DisplayName = "Gravity")
+struct KAWAIIPHYSICS_API FKawaiiPhysics_ExternalForce_Gravity : public FKawaiiPhysics_ExternalForce
+{
+	GENERATED_BODY()
+
+	FKawaiiPhysics_ExternalForce_Gravity()
+	{
+		bCanSelectForceSpace = false;
+		ExternalForceSpace = EExternalForceSpace::WorldSpace;
+	}
+
+	/** 
+	* 各ボーンに適用するForce Rateを補正。
+	* 「RootBoneから特定のボーンまでの長さ / RootBoneから末端のボーンまでの長さ」(0.0~1.0)の値におけるカーブの値をForceRateに乗算
+	* Corrects the Force Rate applied to each bone.
+	* Multiplies the ForceRate by the curve value for "Length from RootBone to specific bone / Length from RootBone to end bone" (0.0~1.0)
+	*/
+	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category="KawaiiPhysics|ExternalForce")
+	FRuntimeFloatCurve ForceRateByBoneLengthRate;
+
+	/** 
+	* Character側で設定されたCustomGravityDirectionを使用するフラグ(UE5.4以降)
+	* Flag to use CustomGravityDirection set on the Character side (UE5.4 and later)
+	*/
+	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category="KawaiiPhysics|ExternalForce")
+	bool bUseCharacterGravityDirection = false;
+
+	/** 
+	* Character側で設定されたGravityScaleを使用するフラグ
+	* Flag to use GravityScale set on the Character side
+	*/
+	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category="KawaiiPhysics|ExternalForce")
+	bool bUseCharacterGravityScale = false;
+
+	/** 
+	 * Direction to override the gravity.
+	 * This direction is used when bUseOverrideGravityDirection is true.
+	 */
+	UPROPERTY(EditAnywhere, BlueprintReadWrite,
+		meta = (EditCondition = "bUseOverrideGravityDirection"), Category="KawaiiPhysics|ExternalForce")
+	FVector OverrideGravityDirection = FVector::Zero();
+
+	/** 
+	 * Flag to determine whether to use the override gravity direction.
+	 * If true, the gravity direction will be overridden by OverrideGravityDirection.
+	 */
+	UPROPERTY(EditAnywhere, BlueprintReadWrite, meta = (InlineEditConditionToggle),
+		Category="KawaiiPhysics|ExternalForce")
+	bool bUseOverrideGravityDirection = false;
+
+	virtual void PreApply(FAnimNode_KawaiiPhysics& Node, const USkeletalMeshComponent* SkelComp) override;
+	virtual void Apply(FKawaiiPhysicsModifyBone& Bone, FAnimNode_KawaiiPhysics& Node,
+	                   const FComponentSpacePoseContext& PoseContext,
+	                   const FTransform& BoneTM = FTransform::Identity) override;
+};
+
+///
+/// Curve
+///
+USTRUCT(BlueprintType, DisplayName = "Curve")
+struct KAWAIIPHYSICS_API FKawaiiPhysics_ExternalForce_Curve : public FKawaiiPhysics_ExternalForce
+{
+	GENERATED_BODY()
+
+	/** 
+	* 時間に応じて変化する外力をカーブで設定。X軸:Time Y軸:Force
+	* Set the external force that changes over time using a curve. X-axis: Time Y-axis: Force
+	*/
+	UPROPERTY(EditAnywhere, BlueprintReadWrite, meta = (XAxisName="Time", YAxisName="Force"),
+		Category="KawaiiPhysics|ExternalForce")
+	FRuntimeVectorCurve ForceCurve;
+
+	/** 
+	* カーブの評価方式。
+	* Single以外に設定した場合：前フレームからの経過時間をSubstepCountで分割し、
+	* 分割後の各時間におけるカーブの値の平均・最大値・最小値を外力として使用
+	* Curve evaluation method
+	* If set to anything other than Single: The time elapsed from the previous frame is divided by SubstepCount,
+	* and the Average, Maximum, or Minimum values of the curve at each time point after division are used as external forces.
+	*/
+	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category="KawaiiPhysics|ExternalForce")
+	EExternalForceCurveEvaluateType CurveEvaluateType = EExternalForceCurveEvaluateType::Single;
+
+	/** 
+	* 経過時間の分割数
+	* Number of divisions of elapsed time
+	*/
+	UPROPERTY(EditAnywhere, BlueprintReadWrite,
+		meta=(EditCondition="CurveEvaluateType!=EExternalForceCurveEvaluateType::Single"),
+		Category="KawaiiPhysics|ExternalForce")
+	int SubstepCount = 10;
+
+	/**
+	 * Scale factor for the time.
+	 * This value is used to scale the time for the external force.
+	 */
+	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category ="KawaiiPhysics|ExternalForce")
+	float TimeScale = 1.0f;
+
+	/** 
+	* 各ボーンに適用するForce Rateを補正。
+	* 「RootBoneから特定のボーンまでの長さ / RootBoneから末端のボーンまでの長さ」(0.0~1.0)の値におけるカーブの値をForceRateに乗算
+	* Corrects the Force Rate applied to each bone.
+	* Multiplies the ForceRate by the curve value for "Length from RootBone to specific bone / Length from RootBone to end bone" (0.0~1.0)
+	*/
+	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category="KawaiiPhysics|ExternalForce")
+	FRuntimeFloatCurve ForceRateByBoneLengthRate;
+
+private:
+	/**
+	 * Current time.
+	 * This value is used to track the current time for the external force.
+	 */
+	UPROPERTY()
+	float Time = 0.0f;
+
+	/**
+	 * Previous time.
+	 * This value is used to track the previous time for the external force.
+	 */
+	UPROPERTY()
+	float PrevTime = 0.0f;
+
+	/**
+	 * Maximum curve time.
+	 * This value is used to track the maximum time for the force curve.
+	 */
+	UPROPERTY()
+	float MaxCurveTime = 0.0f;
+
+public:
+	/**
+	 * Initializes the maximum curve time.
+	 * This function calculates the maximum time value from the ForceCurve and sets it to MaxCurveTime.
+	 */
+	void InitMaxCurveTime();
+
+	virtual void Initialize(const FAnimationInitializeContext& Context) override;
+	virtual void PreApply(FAnimNode_KawaiiPhysics& Node, const USkeletalMeshComponent* SkelComp) override;
+	virtual void Apply(FKawaiiPhysicsModifyBone& Bone, FAnimNode_KawaiiPhysics& Node,
+	                   const FComponentSpacePoseContext& PoseContext,
+	                   const FTransform& BoneTM = FTransform::Identity) override;
+};
+
+///
+/// Wind
+///
+USTRUCT(BlueprintType, DisplayName = "Wind")
+struct KAWAIIPHYSICS_API FKawaiiPhysics_ExternalForce_Wind : public FKawaiiPhysics_ExternalForce
+{
+	GENERATED_BODY()
+
+	FKawaiiPhysics_ExternalForce_Wind()
+	{
+		bCanSelectForceSpace = false;
+		ExternalForceSpace = EExternalForceSpace::WorldSpace;
+	}
+
+	/** 
+	* 各ボーンに適用するForce Rateを補正。
+	* 「RootBoneから特定のボーンまでの長さ / RootBoneから末端のボーンまでの長さ」(0.0~1.0)の値におけるカーブの値をForceRateに乗算
+	* Corrects the Force Rate applied to each bone.
+	* Multiplies the ForceRate by the curve value for "Length from RootBone to specific bone / Length from RootBone to end bone" (0.0~1.0)
+	*/
+	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category="KawaiiPhysics|ExternalForce")
+	FRuntimeFloatCurve ForceRateByBoneLengthRate;
+
+private:
+	/**
+	 * Pointer to the world.
+	 * This is used to access the world context for the external force.
+	 */
+	UPROPERTY()
+	TObjectPtr<UWorld> World;
+
+public:
+	virtual void PreApply(FAnimNode_KawaiiPhysics& Node, const USkeletalMeshComponent* SkelComp) override;
+	virtual void Apply(FKawaiiPhysicsModifyBone& Bone, FAnimNode_KawaiiPhysics& Node,
+	                   const FComponentSpacePoseContext& PoseContext,
+	                   const FTransform& BoneTM = FTransform::Identity) override;
+};

Plugins/KawaiiPhysics/Source/KawaiiPhysics/Public/KawaiiPhysicsLibrary.h

@@ -0,0 +1,584 @@
+// KawaiiPhysics : Copyright (c) 2019-2024 pafuhana1213, MIT License
+
+#pragma once
+
+#include "AnimNode_KawaiiPhysics.h"
+#include "KawaiiPhysicsExternalForce.h"
+#include "Animation/AnimNodeReference.h"
+#include "Kismet/BlueprintFunctionLibrary.h"
+#include "KawaiiPhysicsLibrary.generated.h"
+
+UENUM()
+enum class EKawaiiPhysicsAccessExternalForceResult : uint8
+{
+	Valid,
+	NotValid,
+};
+
+#define KAWAIIPHYSICS_VALUE_SETTER(PropertyType, PropertyName) \
+{ \
+    KawaiiPhysics.CallAnimNodeFunction<FAnimNode_KawaiiPhysics>( \
+        TEXT("Set" #PropertyName), \
+        [PropertyName](FAnimNode_KawaiiPhysics& InKawaiiPhysics) { \
+            InKawaiiPhysics.PropertyName = PropertyName; \
+        }); \
+    return KawaiiPhysics; \
+}
+
+#define KAWAIIPHYSICS_VALUE_GETTER(PropertyType, PropertyName) \
+ { \
+    PropertyType Value; \
+    KawaiiPhysics.CallAnimNodeFunction<FAnimNode_KawaiiPhysics>( \
+        TEXT("Get" #PropertyName), \
+        [&Value](FAnimNode_KawaiiPhysics& InKawaiiPhysics) { \
+            Value = InKawaiiPhysics.PropertyName; \
+        }); \
+    return Value; \
+}
+
+
+USTRUCT(BlueprintType)
+struct FKawaiiPhysicsReference : public FAnimNodeReference
+{
+	GENERATED_BODY()
+
+	using FInternalNodeType = FAnimNode_KawaiiPhysics;
+};
+
+/**
+ * Exposes operations to be performed on a blend space anim node.
+ */
+UCLASS()
+class KAWAIIPHYSICS_API UKawaiiPhysicsLibrary : public UBlueprintFunctionLibrary
+{
+	GENERATED_BODY()
+
+public:
+	/** Get a KawaiiPhysics from an anim node */
+	UFUNCTION(BlueprintCallable, Category = "Kawaii Physics",
+		meta = (BlueprintThreadSafe, ExpandEnumAsExecs = "Result"))
+	static FKawaiiPhysicsReference ConvertToKawaiiPhysics(const FAnimNodeReference& Node,
+	                                                      EAnimNodeReferenceConversionResult& Result);
+
+	/** Get a KawaiiPhysics from an anim node (pure). */
+	UFUNCTION(BlueprintPure, Category = "Kawaii Physics",
+		meta = (BlueprintThreadSafe, DisplayName = "Convert to Kawaii Physics (Pure)"))
+	static void ConvertToKawaiiPhysicsPure(const FAnimNodeReference& Node, FKawaiiPhysicsReference& KawaiiPhysics,
+	                                       bool& Result)
+	{
+		EAnimNodeReferenceConversionResult ConversionResult;
+		KawaiiPhysics = ConvertToKawaiiPhysics(Node, ConversionResult);
+		Result = (ConversionResult == EAnimNodeReferenceConversionResult::Succeeded);
+	}
+
+	/** Collect KawaiiPhysics Node References from AnimInstance(ABP)  */
+	static bool CollectKawaiiPhysicsNodes(TArray<FKawaiiPhysicsReference>& Nodes,
+	                                      UAnimInstance* AnimInstance, const FGameplayTagContainer& FilterTags,
+	                                      bool bFilterExactMatch);
+
+	/** Collect KawaiiPhysics Node References from SkeletalMeshComponent  */
+	static bool CollectKawaiiPhysicsNodes(TArray<FKawaiiPhysicsReference>& Nodes,
+	                                      USkeletalMeshComponent* MeshComp, const FGameplayTagContainer& FilterTags,
+	                                      bool bFilterExactMatch);
+
+	/** ResetDynamics */
+	UFUNCTION(BlueprintCallable, Category = "Kawaii Physics", meta=(BlueprintThreadSafe))
+	static FKawaiiPhysicsReference ResetDynamics(const FKawaiiPhysicsReference& KawaiiPhysics);
+
+	/** Set RootBone */
+	UFUNCTION(BlueprintCallable, Category = "Kawaii Physics", meta=(BlueprintThreadSafe))
+	static FKawaiiPhysicsReference SetRootBoneName(const FKawaiiPhysicsReference& KawaiiPhysics,
+	                                               UPARAM(ref) FName& RootBoneName);
+	/** Get RootBone */
+	UFUNCTION(BlueprintPure, Category = "Kawaii Physics", meta=(BlueprintThreadSafe))
+	static FName GetRootBoneName(const FKawaiiPhysicsReference& KawaiiPhysics);
+
+	/** Set ExcludeBones */
+	UFUNCTION(BlueprintCallable, Category = "Kawaii Physics", meta=(BlueprintThreadSafe))
+	static FKawaiiPhysicsReference SetExcludeBoneNames(const FKawaiiPhysicsReference& KawaiiPhysics,
+	                                                   UPARAM(ref) TArray<FName>& ExcludeBoneNames);
+	/** Get ExcludeBones */
+	UFUNCTION(BlueprintPure, Category = "Kawaii Physics", meta=(BlueprintThreadSafe))
+	static TArray<FName> GetExcludeBoneNames(const FKawaiiPhysicsReference& KawaiiPhysics);
+
+	// PhysicsSettings
+	UFUNCTION(BlueprintCallable, Category = "Kawaii Physics", meta=(BlueprintThreadSafe))
+	static FKawaiiPhysicsReference SetPhysicsSettings(const FKawaiiPhysicsReference& KawaiiPhysics,
+	                                                  UPARAM(ref) FKawaiiPhysicsSettings& PhysicsSettings)
+	{
+		KAWAIIPHYSICS_VALUE_SETTER(FKawaiiPhysicsSettings, PhysicsSettings);
+	}
+	
+	UFUNCTION(BlueprintPure, Category = "Kawaii Physics", meta=(BlueprintThreadSafe))
+	static FKawaiiPhysicsSettings GetPhysicsSettings(const FKawaiiPhysicsReference& KawaiiPhysics)
+	{
+		KAWAIIPHYSICS_VALUE_GETTER(FKawaiiPhysicsSettings, PhysicsSettings);
+	}
+
+	// DummyBoneLength
+	UFUNCTION(BlueprintCallable, Category = "Kawaii Physics", meta=(BlueprintThreadSafe))
+	static FKawaiiPhysicsReference SetDummyBoneLength(const FKawaiiPhysicsReference& KawaiiPhysics,
+	                                                  float DummyBoneLength)
+	{
+		KAWAIIPHYSICS_VALUE_SETTER(float, DummyBoneLength);
+	}
+
+	UFUNCTION(BlueprintPure, Category = "Kawaii Physics", meta=(BlueprintThreadSafe))
+	static float GetDummyBoneLength(const FKawaiiPhysicsReference& KawaiiPhysics)
+	{
+		KAWAIIPHYSICS_VALUE_GETTER(float, DummyBoneLength);
+	}
+
+	/** TeleportDistanceThreshold */
+	UFUNCTION(BlueprintCallable, Category = "Kawaii Physics", meta=(BlueprintThreadSafe))
+	static FKawaiiPhysicsReference SetTeleportDistanceThreshold(const FKawaiiPhysicsReference& KawaiiPhysics,
+	                                                            float TeleportDistanceThreshold)
+	{
+		KAWAIIPHYSICS_VALUE_SETTER(float, TeleportDistanceThreshold);
+	}
+
+	UFUNCTION(BlueprintPure, Category = "Kawaii Physics", meta=(BlueprintThreadSafe))
+	static float GetTeleportDistanceThreshold(const FKawaiiPhysicsReference& KawaiiPhysics)
+	{
+		KAWAIIPHYSICS_VALUE_GETTER(float, TeleportDistanceThreshold);
+	}
+
+	/** TeleportRotationThreshold */
+	UFUNCTION(BlueprintCallable, Category = "Kawaii Physics", meta=(BlueprintThreadSafe))
+	static FKawaiiPhysicsReference SetTeleportRotationThreshold(const FKawaiiPhysicsReference& KawaiiPhysics,
+	                                                            float TeleportRotationThreshold)
+	{
+		KAWAIIPHYSICS_VALUE_SETTER(float, TeleportRotationThreshold);
+	}
+
+	UFUNCTION(BlueprintPure, Category = "Kawaii Physics", meta=(BlueprintThreadSafe))
+	static float GetTeleportRotationThreshold(const FKawaiiPhysicsReference& KawaiiPhysics)
+	{
+		KAWAIIPHYSICS_VALUE_GETTER(float, TeleportRotationThreshold);
+	}
+
+	/** Gravity */
+	UFUNCTION(BlueprintCallable, Category = "Kawaii Physics", meta=(BlueprintThreadSafe))
+	static FKawaiiPhysicsReference SetGravity(const FKawaiiPhysicsReference& KawaiiPhysics, FVector Gravity)
+	{
+		KAWAIIPHYSICS_VALUE_SETTER(FVector, Gravity);
+	}
+
+	UFUNCTION(BlueprintPure, Category = "Kawaii Physics", meta=(BlueprintThreadSafe))
+	static FVector GetGravity(const FKawaiiPhysicsReference& KawaiiPhysics)
+	{
+		KAWAIIPHYSICS_VALUE_GETTER(FVector, Gravity);
+	}
+
+	/** EnableWind */
+	UFUNCTION(BlueprintCallable, Category = "Kawaii Physics", meta=(BlueprintThreadSafe))
+	static FKawaiiPhysicsReference SetEnableWind(const FKawaiiPhysicsReference& KawaiiPhysics, bool bEnableWind)
+	{
+		KAWAIIPHYSICS_VALUE_SETTER(bool, bEnableWind);
+	}
+
+	UFUNCTION(BlueprintPure, Category = "Kawaii Physics", meta=(BlueprintThreadSafe))
+	static bool GetEnableWind(const FKawaiiPhysicsReference& KawaiiPhysics)
+	{
+		KAWAIIPHYSICS_VALUE_GETTER(bool, bEnableWind);
+	}
+
+	/** WindScale */
+	UFUNCTION(BlueprintCallable, Category = "Kawaii Physics", meta=(BlueprintThreadSafe))
+	static FKawaiiPhysicsReference SetWindScale(const FKawaiiPhysicsReference& KawaiiPhysics, float WindScale)
+	{
+		KAWAIIPHYSICS_VALUE_SETTER(float, WindScale);
+	}
+
+	UFUNCTION(BlueprintPure, Category = "Kawaii Physics", meta=(BlueprintThreadSafe))
+	static float GetWindScale(const FKawaiiPhysicsReference& KawaiiPhysics)
+	{
+		KAWAIIPHYSICS_VALUE_GETTER(float, WindScale);
+	}
+
+	/** AllowWorldCollision */
+	UFUNCTION(BlueprintCallable, Category = "Kawaii Physics", meta=(BlueprintThreadSafe))
+	static FKawaiiPhysicsReference SetAllowWorldCollision(const FKawaiiPhysicsReference& KawaiiPhysics,
+	                                                      bool bAllowWorldCollision)
+	{
+		KAWAIIPHYSICS_VALUE_SETTER(bool, bAllowWorldCollision);
+	}
+
+	UFUNCTION(BlueprintPure, Category = "Kawaii Physics", meta=(BlueprintThreadSafe))
+	static bool GetAllowWorldCollision(const FKawaiiPhysicsReference& KawaiiPhysics)
+	{
+		KAWAIIPHYSICS_VALUE_GETTER(bool, bAllowWorldCollision);
+	}
+
+	/** NeedWarmUp */
+	UFUNCTION(BlueprintCallable, Category = "Kawaii Physics", meta=(BlueprintThreadSafe))
+	static FKawaiiPhysicsReference SetNeedWarmUp(const FKawaiiPhysicsReference& KawaiiPhysics, bool bNeedWarmUp)
+	{
+		KAWAIIPHYSICS_VALUE_SETTER(bool, bNeedWarmUp);
+	}
+
+	/** NeedWarmUp */
+	UFUNCTION(BlueprintPure, Category = "Kawaii Physics", meta=(BlueprintThreadSafe))
+	static bool GetNeedWarmUp(const FKawaiiPhysicsReference& KawaiiPhysics)
+	{
+		KAWAIIPHYSICS_VALUE_GETTER(bool, bNeedWarmUp);
+	}
+
+	/** LimitsDataAsset */
+	UFUNCTION(BlueprintCallable, Category = "Kawaii Physics", meta=(BlueprintThreadSafe))
+	static FKawaiiPhysicsReference SetLimitsDataAsset(const FKawaiiPhysicsReference& KawaiiPhysics,
+	                                                  UKawaiiPhysicsLimitsDataAsset* LimitsDataAsset)
+	{
+		KAWAIIPHYSICS_VALUE_SETTER(TObjectPtr<UKawaiiPhysicsLimitsDataAsset>, LimitsDataAsset);
+	}
+
+	/** LimitsDataAsset */
+	UFUNCTION(BlueprintPure, Category = "Kawaii Physics", meta=(BlueprintThreadSafe))
+	static UKawaiiPhysicsLimitsDataAsset* GetLimitsDataAsset(const FKawaiiPhysicsReference& KawaiiPhysics)
+	{
+		KAWAIIPHYSICS_VALUE_GETTER(TObjectPtr<UKawaiiPhysicsLimitsDataAsset>, LimitsDataAsset);
+	}
+
+	/** Add ExternalForce With ExecResult */
+	UFUNCTION(BlueprintCallable, Category = "Kawaii Physics",
+		meta=(BlueprintThreadSafe, ExpandEnumAsExecs = "ExecResult"))
+	static FKawaiiPhysicsReference AddExternalForceWithExecResult(EKawaiiPhysicsAccessExternalForceResult& ExecResult,
+	                                                              const FKawaiiPhysicsReference& KawaiiPhysics,
+	                                                              FInstancedStruct& ExternalForce, UObject* Owner);
+
+	/** Add ExternalForce */
+	UFUNCTION(BlueprintCallable, Category = "Kawaii Physics", meta=(BlueprintThreadSafe))
+	static bool AddExternalForce(const FKawaiiPhysicsReference& KawaiiPhysics,
+	                             FInstancedStruct& ExternalForce, UObject* Owner, bool bIsOneShot = false);
+
+	/** Add ExternalForces to SkeletalMeshComponent */
+	UFUNCTION(BlueprintCallable, Category = "Kawaii Physics", meta=(BlueprintThreadSafe))
+	static bool AddExternalForcesToComponent(USkeletalMeshComponent* MeshComp,
+	                                         UPARAM(ref) TArray<FInstancedStruct>& ExternalForces, UObject* Owner,
+	                                         UPARAM(ref) FGameplayTagContainer& FilterTags,
+	                                         bool bFilterExactMatch = false,
+	                                         bool bIsOneShot = false);
+
+	UFUNCTION(BlueprintCallable, Category = "Kawaii Physics", meta=(BlueprintThreadSafe))
+	static bool RemoveExternalForcesFromComponent(USkeletalMeshComponent* MeshComp, UObject* Owner,
+	                                              UPARAM(ref) FGameplayTagContainer& FilterTags,
+	                                              bool bFilterExactMatch = false);
+
+
+	/** Set ExternalForceParameter template */
+	template <typename ValueType, typename PropertyType>
+	static FKawaiiPhysicsReference SetExternalForceProperty(EKawaiiPhysicsAccessExternalForceResult& ExecResult,
+	                                                        const FKawaiiPhysicsReference& KawaiiPhysics,
+	                                                        int ExternalForceIndex, FName PropertyName,
+	                                                        ValueType Value);
+	/** Get ExternalForceParameter template */
+	template <typename ValueType>
+	static ValueType GetExternalForceProperty(EKawaiiPhysicsAccessExternalForceResult& ExecResult,
+	                                          const FKawaiiPhysicsReference& KawaiiPhysics, int ExternalForceIndex,
+	                                          FName PropertyName);
+
+	/** Set ExternalForceParameter template struct */
+	template <typename ValueType>
+	static FKawaiiPhysicsReference SetExternalForceStructProperty(EKawaiiPhysicsAccessExternalForceResult& ExecResult,
+	                                                              const FKawaiiPhysicsReference& KawaiiPhysics,
+	                                                              int ExternalForceIndex, FName PropertyName,
+	                                                              ValueType Value);
+	/** Get ExternalForceParameter template struct */
+	template <typename ValueType>
+	static ValueType GetExternalForceStructProperty(EKawaiiPhysicsAccessExternalForceResult& ExecResult,
+	                                                const FKawaiiPhysicsReference& KawaiiPhysics,
+	                                                int ExternalForceIndex,
+	                                                FName PropertyName);
+
+	/** Set ExternalForceParameter bool */
+	UFUNCTION(BlueprintCallable, Category = "Kawaii Physics",
+		meta=(BlueprintThreadSafe, ExpandEnumAsExecs = "ExecResult"))
+	static FKawaiiPhysicsReference SetExternalForceBoolProperty(EKawaiiPhysicsAccessExternalForceResult& ExecResult,
+	                                                            const FKawaiiPhysicsReference& KawaiiPhysics,
+	                                                            int ExternalForceIndex, FName PropertyName,
+	                                                            bool Value)
+	{
+		return SetExternalForceProperty<bool, FBoolProperty>(ExecResult, KawaiiPhysics, ExternalForceIndex,
+		                                                     PropertyName, Value);
+	}
+
+	/** Get ExternalForceParameter bool */
+	UFUNCTION(BlueprintCallable, Category = "Kawaii Physics",
+		meta=(BlueprintThreadSafe, ExpandEnumAsExecs = "ExecResult"))
+	static bool GetExternalForceBoolProperty(EKawaiiPhysicsAccessExternalForceResult& ExecResult,
+	                                         const FKawaiiPhysicsReference& KawaiiPhysics, int ExternalForceIndex,
+	                                         FName PropertyName)
+	{
+		return GetExternalForceProperty<bool>(ExecResult, KawaiiPhysics, ExternalForceIndex, PropertyName);
+	}
+
+	/** Set ExternalForceParameter int */
+	UFUNCTION(BlueprintCallable, Category = "Kawaii Physics",
+		meta=(BlueprintThreadSafe, ExpandEnumAsExecs = "ExecResult"))
+	static FKawaiiPhysicsReference SetExternalForceIntProperty(EKawaiiPhysicsAccessExternalForceResult& ExecResult,
+	                                                           const FKawaiiPhysicsReference& KawaiiPhysics,
+	                                                           int ExternalForceIndex, FName PropertyName,
+	                                                           int32 Value)
+	{
+		return SetExternalForceProperty<int32, FIntProperty>(ExecResult, KawaiiPhysics, ExternalForceIndex,
+		                                                     PropertyName, Value);
+	}
+
+	/** Get ExternalForceParameter int */
+	UFUNCTION(BlueprintCallable, Category = "Kawaii Physics",
+		meta=(BlueprintThreadSafe, ExpandEnumAsExecs = "ExecResult"))
+	static int32 GetExternalForceIntProperty(EKawaiiPhysicsAccessExternalForceResult& ExecResult,
+	                                         const FKawaiiPhysicsReference& KawaiiPhysics, int ExternalForceIndex,
+	                                         FName PropertyName)
+	{
+		return GetExternalForceProperty<int32>(ExecResult, KawaiiPhysics, ExternalForceIndex, PropertyName);
+	}
+
+	/** Set ExternalForceParameter float */
+	UFUNCTION(BlueprintCallable, Category = "Kawaii Physics",
+		meta=(BlueprintThreadSafe, ExpandEnumAsExecs = "ExecResult"))
+	static FKawaiiPhysicsReference SetExternalForceFloatProperty(EKawaiiPhysicsAccessExternalForceResult& ExecResult,
+	                                                             const FKawaiiPhysicsReference& KawaiiPhysics,
+	                                                             int ExternalForceIndex, FName PropertyName,
+	                                                             float Value)
+	{
+		return SetExternalForceProperty<float, FFloatProperty>(ExecResult, KawaiiPhysics, ExternalForceIndex,
+		                                                       PropertyName, Value);
+	}
+
+	/** Get ExternalForceParameter float */
+	UFUNCTION(BlueprintCallable, Category = "Kawaii Physics",
+		meta=(BlueprintThreadSafe, ExpandEnumAsExecs = "ExecResult"))
+	static float GetExternalForceFloatProperty(EKawaiiPhysicsAccessExternalForceResult& ExecResult,
+	                                           const FKawaiiPhysicsReference& KawaiiPhysics, int ExternalForceIndex,
+	                                           FName PropertyName)
+	{
+		return GetExternalForceProperty<float>(ExecResult, KawaiiPhysics, ExternalForceIndex, PropertyName);
+	}
+
+	/** Get ExternalForceParameter Vector */
+	UFUNCTION(BlueprintCallable, Category = "Kawaii Physics",
+		meta=(BlueprintThreadSafe, ExpandEnumAsExecs = "ExecResult"))
+	static FKawaiiPhysicsReference SetExternalForceVectorProperty(EKawaiiPhysicsAccessExternalForceResult& ExecResult,
+	                                                              const FKawaiiPhysicsReference& KawaiiPhysics,
+	                                                              int ExternalForceIndex, FName PropertyName,
+	                                                              FVector Value)
+	{
+		return SetExternalForceStructProperty<FVector>(ExecResult, KawaiiPhysics, ExternalForceIndex,
+		                                               PropertyName, Value);
+	}
+
+	/** Get ExternalForceParameter Vector */
+	UFUNCTION(BlueprintCallable, Category = "Kawaii Physics",
+		meta=(BlueprintThreadSafe, ExpandEnumAsExecs = "ExecResult"))
+	static FVector GetExternalForceVectorProperty(EKawaiiPhysicsAccessExternalForceResult& ExecResult,
+	                                              const FKawaiiPhysicsReference& KawaiiPhysics, int ExternalForceIndex,
+	                                              FName PropertyName)
+	{
+		return GetExternalForceStructProperty<FVector>(ExecResult, KawaiiPhysics, ExternalForceIndex, PropertyName);
+	}
+
+	/** Get ExternalForceParameter Rotator */
+	UFUNCTION(BlueprintCallable, Category = "Kawaii Physics",
+		meta=(BlueprintThreadSafe, ExpandEnumAsExecs = "ExecResult"))
+	static FKawaiiPhysicsReference SetExternalForceRotatorProperty(EKawaiiPhysicsAccessExternalForceResult& ExecResult,
+	                                                               const FKawaiiPhysicsReference& KawaiiPhysics,
+	                                                               int ExternalForceIndex, FName PropertyName,
+	                                                               FRotator Value)
+	{
+		return SetExternalForceStructProperty<FRotator>(ExecResult, KawaiiPhysics, ExternalForceIndex,
+		                                                PropertyName, Value);
+	}
+
+	/** Get ExternalForceParameter Rotator */
+	UFUNCTION(BlueprintCallable, Category = "Kawaii Physics",
+		meta=(BlueprintThreadSafe, ExpandEnumAsExecs = "ExecResult"))
+	static FRotator GetExternalForceRotatorProperty(EKawaiiPhysicsAccessExternalForceResult& ExecResult,
+	                                                const FKawaiiPhysicsReference& KawaiiPhysics,
+	                                                int ExternalForceIndex,
+	                                                FName PropertyName)
+	{
+		return GetExternalForceStructProperty<FRotator>(ExecResult, KawaiiPhysics, ExternalForceIndex, PropertyName);
+	}
+
+	/** Get ExternalForceParameter Transform */
+	UFUNCTION(BlueprintCallable, Category = "Kawaii Physics",
+		meta=(BlueprintThreadSafe, ExpandEnumAsExecs = "ExecResult"))
+	static FKawaiiPhysicsReference SetExternalForceTransformProperty(
+		EKawaiiPhysicsAccessExternalForceResult& ExecResult,
+		const FKawaiiPhysicsReference& KawaiiPhysics,
+		int ExternalForceIndex, FName PropertyName,
+		FTransform Value)
+	{
+		return SetExternalForceStructProperty<FTransform>(ExecResult, KawaiiPhysics, ExternalForceIndex,
+		                                                  PropertyName, Value);
+	}
+
+	/** Get ExternalForceParameter Transform */
+	UFUNCTION(BlueprintCallable, Category = "Kawaii Physics",
+		meta=(BlueprintThreadSafe, ExpandEnumAsExecs = "ExecResult"))
+	static FTransform GetExternalForceTransformProperty(EKawaiiPhysicsAccessExternalForceResult& ExecResult,
+	                                                    const FKawaiiPhysicsReference& KawaiiPhysics,
+	                                                    int ExternalForceIndex,
+	                                                    FName PropertyName)
+	{
+		return GetExternalForceStructProperty<FTransform>(ExecResult, KawaiiPhysics, ExternalForceIndex, PropertyName);
+	}
+
+	/** Set ExternalForceParameter Wildcard */
+	UFUNCTION(BlueprintCallable, CustomThunk, Category = "Kawaii Physics",
+		meta=(BlueprintThreadSafe, ExpandEnumAsExecs = "ExecResult", CustomStructureParam = "Value"))
+	static void SetExternalForceWildcardProperty(EKawaiiPhysicsAccessExternalForceResult& ExecResult,
+	                                             const FKawaiiPhysicsReference& KawaiiPhysics, int ExternalForceIndex,
+	                                             FName PropertyName, const int32& Value)
+	{
+		checkNoEntry();
+	}
+
+
+	/** Get ExternalForceParameter Wildcard */
+	UFUNCTION(BlueprintCallable, CustomThunk, Category = "Kawaii Physics",
+		meta=(BlueprintThreadSafe, ExpandEnumAsExecs = "ExecResult", CustomStructureParam = "Value"))
+	static void GetExternalForceWildcardProperty(EKawaiiPhysicsAccessExternalForceResult& ExecResult,
+	                                             const FKawaiiPhysicsReference& KawaiiPhysics, int ExternalForceIndex,
+	                                             FName PropertyName, int32& Value)
+	{
+		checkNoEntry();
+	}
+
+private:
+	DECLARE_FUNCTION(execSetExternalForceWildcardProperty);
+	DECLARE_FUNCTION(execGetExternalForceWildcardProperty);
+};
+
+template <typename ValueType, typename PropertyType>
+FKawaiiPhysicsReference UKawaiiPhysicsLibrary::SetExternalForceProperty(
+	EKawaiiPhysicsAccessExternalForceResult& ExecResult, const FKawaiiPhysicsReference& KawaiiPhysics,
+	int ExternalForceIndex, FName PropertyName, ValueType Value)
+{
+	ExecResult = EKawaiiPhysicsAccessExternalForceResult::NotValid;
+
+	KawaiiPhysics.CallAnimNodeFunction<FAnimNode_KawaiiPhysics>(
+		TEXT("SetExternalForceProperty"),
+		[&ExecResult, &ExternalForceIndex, &PropertyName, &Value](FAnimNode_KawaiiPhysics& InKawaiiPhysics)
+		{
+			if (InKawaiiPhysics.ExternalForces.IsValidIndex(ExternalForceIndex) &&
+				InKawaiiPhysics.ExternalForces[ExternalForceIndex].IsValid())
+			{
+				const auto* ScriptStruct = InKawaiiPhysics.ExternalForces[ExternalForceIndex].GetScriptStruct();
+				auto& Force = InKawaiiPhysics.ExternalForces[ExternalForceIndex].GetMutable<
+					FKawaiiPhysics_ExternalForce>();
+
+				if (const PropertyType* Property = FindFProperty<PropertyType>(ScriptStruct, PropertyName))
+				{
+					if (void* ValuePtr = Property->template ContainerPtrToValuePtr<uint8>(&Force))
+					{
+						Property->SetPropertyValue(ValuePtr, Value);
+						ExecResult = EKawaiiPhysicsAccessExternalForceResult::Valid;
+					}
+				}
+			}
+		});
+
+	return KawaiiPhysics;
+}
+
+template <typename ValueType>
+ValueType UKawaiiPhysicsLibrary::GetExternalForceProperty(EKawaiiPhysicsAccessExternalForceResult& ExecResult,
+                                                          const FKawaiiPhysicsReference& KawaiiPhysics,
+                                                          int ExternalForceIndex, FName PropertyName)
+{
+	ValueType Result;
+	ExecResult = EKawaiiPhysicsAccessExternalForceResult::NotValid;
+
+	KawaiiPhysics.CallAnimNodeFunction<FAnimNode_KawaiiPhysics>(
+		TEXT("GetExternalForceProperty"),
+		[&Result, &ExecResult, &ExternalForceIndex, &PropertyName](FAnimNode_KawaiiPhysics& InKawaiiPhysics)
+		{
+			if (InKawaiiPhysics.ExternalForces.IsValidIndex(ExternalForceIndex) &&
+				InKawaiiPhysics.ExternalForces[ExternalForceIndex].IsValid())
+			{
+				const auto* ScriptStruct = InKawaiiPhysics.ExternalForces[ExternalForceIndex].GetScriptStruct();
+				const auto& Force = InKawaiiPhysics.ExternalForces[ExternalForceIndex].GetMutable<
+					FKawaiiPhysics_ExternalForce>();
+
+				if (const FProperty* Property = FindFProperty<FProperty>(ScriptStruct, PropertyName))
+				{
+					Result = *(Property->ContainerPtrToValuePtr<ValueType>(&Force));
+					ExecResult = EKawaiiPhysicsAccessExternalForceResult::Valid;
+				}
+			}
+		});
+
+	return Result;
+}
+
+template <typename ValueType>
+FKawaiiPhysicsReference UKawaiiPhysicsLibrary::SetExternalForceStructProperty(
+	EKawaiiPhysicsAccessExternalForceResult& ExecResult, const FKawaiiPhysicsReference& KawaiiPhysics,
+	int ExternalForceIndex, FName PropertyName, ValueType Value)
+{
+	ExecResult = EKawaiiPhysicsAccessExternalForceResult::NotValid;
+
+	KawaiiPhysics.CallAnimNodeFunction<FAnimNode_KawaiiPhysics>(
+		TEXT("SetExternalForceStructProperty"),
+		[&ExecResult, &ExternalForceIndex, &PropertyName, &Value](FAnimNode_KawaiiPhysics& InKawaiiPhysics)
+		{
+			if (InKawaiiPhysics.ExternalForces.IsValidIndex(ExternalForceIndex) &&
+				InKawaiiPhysics.ExternalForces[ExternalForceIndex].IsValid())
+			{
+				const auto* ScriptStruct = InKawaiiPhysics.ExternalForces[ExternalForceIndex].GetScriptStruct();
+				auto& Force = InKawaiiPhysics.ExternalForces[ExternalForceIndex].GetMutable<
+					FKawaiiPhysics_ExternalForce>();
+
+				if (const FStructProperty* StructProperty = FindFProperty<FStructProperty>(
+					ScriptStruct, PropertyName))
+				{
+					if (StructProperty->Struct == TBaseStructure<ValueType>::Get())
+					{
+						if (void* ValuePtr = StructProperty->ContainerPtrToValuePtr<uint8>(&Force))
+						{
+							StructProperty->CopyCompleteValue(ValuePtr, &Value);
+							ExecResult = EKawaiiPhysicsAccessExternalForceResult::Valid;
+						}
+					}
+				}
+			}
+		});
+
+	return KawaiiPhysics;
+}
+
+template <typename ValueType>
+ValueType UKawaiiPhysicsLibrary::GetExternalForceStructProperty(EKawaiiPhysicsAccessExternalForceResult& ExecResult,
+                                                                const FKawaiiPhysicsReference& KawaiiPhysics,
+                                                                int ExternalForceIndex, FName PropertyName)
+{
+	ValueType Result;
+	ExecResult = EKawaiiPhysicsAccessExternalForceResult::NotValid;
+
+	KawaiiPhysics.CallAnimNodeFunction<FAnimNode_KawaiiPhysics>(
+		TEXT("GetExternalForceStructProperty"),
+		[&Result, &ExecResult, &ExternalForceIndex, &PropertyName](FAnimNode_KawaiiPhysics& InKawaiiPhysics)
+		{
+			if (InKawaiiPhysics.ExternalForces.IsValidIndex(ExternalForceIndex) &&
+				InKawaiiPhysics.ExternalForces[ExternalForceIndex].IsValid())
+			{
+				const auto* ScriptStruct = InKawaiiPhysics.ExternalForces[ExternalForceIndex].GetScriptStruct();
+				const auto& Force = InKawaiiPhysics.ExternalForces[ExternalForceIndex].GetMutable<
+					FKawaiiPhysics_ExternalForce>();
+
+				if (const FStructProperty* StructProperty = FindFProperty<FStructProperty>(
+					ScriptStruct, PropertyName))
+				{
+					if (StructProperty->Struct == TBaseStructure<ValueType>::Get())
+					{
+						Result = *(StructProperty->ContainerPtrToValuePtr<ValueType>(&Force));
+						ExecResult = EKawaiiPhysicsAccessExternalForceResult::Valid;
+					}
+				}
+			}
+		});
+
+	return Result;
+}

Plugins/KawaiiPhysics/Source/KawaiiPhysics/Public/KawaiiPhysicsLimitsDataAsset.h

@@ -0,0 +1,197 @@
+// KawaiiPhysics : Copyright (c) 2019-2024 pafuhana1213, MIT License
+
+#pragma once
+
+#include "AnimNode_KawaiiPhysics.h"
+#include "Engine/DataAsset.h"
+#include "Interfaces/Interface_BoneReferenceSkeletonProvider.h"
+#include "KawaiiPhysicsLimitsDataAsset.generated.h"
+
+DECLARE_MULTICAST_DELEGATE_OneParam(FOnLimitsChanged, struct FPropertyChangedEvent&);
+
+// Deprecated
+USTRUCT()
+struct FCollisionLimitDataBase
+{
+	GENERATED_BODY()
+
+	UPROPERTY(meta=(DeprecatedProperty))
+	FBoneReference DrivingBoneReference;
+
+	UPROPERTY(meta=(DeprecatedProperty))
+	FName DrivingBoneName;
+
+	UPROPERTY(meta=(DeprecatedProperty))
+	FVector OffsetLocation = FVector::ZeroVector;
+
+	UPROPERTY(meta=(DeprecatedProperty))
+	FRotator OffsetRotation = FRotator::ZeroRotator;
+
+	UPROPERTY(meta=(DeprecatedProperty))
+	FVector Location = FVector::ZeroVector;
+
+	UPROPERTY(meta=(DeprecatedProperty))
+	FQuat Rotation = FQuat::Identity;
+
+	UPROPERTY(meta=(DeprecatedProperty, IgnoreForMemberInitializationTest))
+	FGuid Guid = FGuid::NewGuid();
+
+protected:
+	void ConvertBase(FCollisionLimitBase& Limit) const
+	{
+		Limit.DrivingBone.BoneName = DrivingBoneReference.BoneName;
+		Limit.OffsetLocation = OffsetLocation;
+		Limit.OffsetRotation = OffsetRotation;
+		Limit.Location = Location;
+		Limit.Rotation = Rotation;
+
+#if  WITH_EDITORONLY_DATA
+		Limit.SourceType = ECollisionSourceType::DataAsset;
+		Limit.Guid = Guid;
+#endif
+	}
+};
+
+// Deprecated
+USTRUCT()
+struct FSphericalLimitData : public FCollisionLimitDataBase
+{
+	GENERATED_BODY()
+
+	/** Radius of the sphere */
+	UPROPERTY(meta=(DeprecatedProperty))
+	float Radius = 5.0f;
+
+	/** Whether to lock bodies inside or outside of the sphere */
+	UPROPERTY(meta=(DeprecatedProperty))
+	ESphericalLimitType LimitType = ESphericalLimitType::Outer;
+
+	FSphericalLimit Convert() const
+	{
+		FSphericalLimit Limit;
+		ConvertBase(Limit);
+		Limit.Radius = Radius;
+		Limit.LimitType = LimitType;
+
+		return Limit;
+	}
+};
+
+// Deprecated
+USTRUCT()
+struct FCapsuleLimitData : public FCollisionLimitDataBase
+{
+	GENERATED_BODY()
+
+	UPROPERTY(meta=(DeprecatedProperty))
+	float Radius = 5.0f;
+
+	UPROPERTY(meta=(DeprecatedProperty))
+	float Length = 10.0f;
+
+	FCapsuleLimit Convert() const
+	{
+		FCapsuleLimit Limit;
+		ConvertBase(Limit);
+		Limit.Radius = Radius;
+		Limit.Length = Length;
+
+		return Limit;
+	}
+};
+
+// Deprecated
+USTRUCT()
+struct FBoxLimitData : public FCollisionLimitDataBase
+{
+	GENERATED_BODY()
+
+	UPROPERTY(meta=(DeprecatedProperty))
+	FVector Extent = FVector(5.0f, 5.0f, 5.0f);
+
+	FBoxLimit Convert() const
+	{
+		FBoxLimit Limit;
+		ConvertBase(Limit);
+		Limit.Extent = Extent;
+
+		return Limit;
+	}
+};
+
+// Deprecated
+USTRUCT()
+struct FPlanarLimitData : public FCollisionLimitDataBase
+{
+	GENERATED_BODY()
+
+	UPROPERTY(meta=(DeprecatedProperty))
+	FPlane Plane = FPlane(0, 0, 0, 0);
+
+	FPlanarLimit Convert() const
+	{
+		FPlanarLimit Limit;
+		ConvertBase(Limit);
+		Limit.Plane = Plane;
+
+		return Limit;
+	}
+};
+
+/**
+ * 
+ */
+UCLASS(Blueprintable)
+class KAWAIIPHYSICS_API UKawaiiPhysicsLimitsDataAsset : public UDataAsset, public IBoneReferenceSkeletonProvider
+
+{
+	GENERATED_BODY()
+
+public:
+#if WITH_EDITORONLY_DATA
+	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Skeleton")
+	TObjectPtr<USkeleton> Skeleton;
+
+	// Deprecated
+	UPROPERTY(meta=(DeprecatedProperty))
+	TArray<FSphericalLimitData> SphericalLimitsData;
+	UPROPERTY(meta=(DeprecatedProperty))
+	TArray<FCapsuleLimitData> CapsuleLimitsData;
+	UPROPERTY(meta=(DeprecatedProperty))
+	TArray<FBoxLimitData> BoxLimitsData;
+	UPROPERTY(meta=(DeprecatedProperty))
+	TArray<FPlanarLimitData> PlanarLimitsData;
+
+#endif
+
+	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Spherical Limits")
+	TArray<FSphericalLimit> SphericalLimits;
+	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Capsule Limits")
+	TArray<FCapsuleLimit> CapsuleLimits;
+	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Box Limits")
+	TArray<FBoxLimit> BoxLimits;
+	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Planar Limits")
+	TArray<FPlanarLimit> PlanarLimits;
+
+	// Begin UObject Interface.
+#if WITH_EDITORONLY_DATA
+	virtual void Serialize(FStructuredArchiveRecord Record) override;
+#endif
+	virtual void PostLoad() override;
+	// End UObject Interface.
+
+	// IBoneReferenceSkeletonProvider interface
+	virtual USkeleton* GetSkeleton(bool& bInvalidSkeletonIsError, const IPropertyHandle* PropertyHandle) override;
+
+#if WITH_EDITOR
+	void UpdateLimit(FCollisionLimitBase* Limit);
+
+	FOnLimitsChanged OnLimitsChanged;
+	virtual void PostEditChangeChainProperty(FPropertyChangedChainEvent& PropertyChangedEvent) override;
+#endif
+
+private:
+#if WITH_EDITOR
+	void Sync();
+#endif
+};

Plugins/KawaiiPhysics/Source/KawaiiPhysicsEd/KawaiiPhysicsEd.Build.cs

@@ -0,0 +1,42 @@
+// KawaiiPhysics : Copyright (c) 2019-2024 pafuhana1213, MIT License
+
+using UnrealBuildTool;
+
+public class KawaiiPhysicsEd : ModuleRules
+{
+	public KawaiiPhysicsEd(ReadOnlyTargetRules Target) : base(Target)
+	{
+		PCHUsage = PCHUsageMode.UseExplicitOrSharedPCHs;
+
+		PrivateDependencyModuleNames.AddRange(new[]
+		{
+			"Core",
+			"CoreUObject",
+			"Engine",
+			"InputCore",
+			"KawaiiPhysics",
+			"AnimGraph",
+			"BlueprintGraph",
+			"Persona",
+			"UnrealEd",
+			"AnimGraphRuntime",
+			"Slate",
+			"SlateCore"
+		});
+
+		if(Target.Version.MajorVersion >= 5)
+		{
+			PrivateDependencyModuleNames.Add("EditorFramework");
+			if (Target.Version.MinorVersion >= 1)
+			{
+				PrivateDependencyModuleNames.Add("AnimationEditMode");
+			}
+
+			// StructUtils plugin has been integrated into the engine starting from 5.5
+			if (Target.Version.MinorVersion <= 4)
+			{
+				PrivateDependencyModuleNames.Add("StructUtils");
+			}
+		}
+	}
+}

Plugins/KawaiiPhysics/Source/KawaiiPhysicsEd/Private/AnimGraphNode_KawaiiPhysics.cpp

@@ -0,0 +1,667 @@
+// KawaiiPhysics : Copyright (c) 2019-2024 pafuhana1213, MIT License
+
+#include "AnimGraphNode_KawaiiPhysics.h"
+
+#include "Subsystems/AssetEditorSubsystem.h"
+#include "AssetToolsModule.h"
+#include "DetailCategoryBuilder.h"
+#include "DetailLayoutBuilder.h"
+#include "DetailWidgetRow.h"
+#include "KawaiiPhysicsBoneConstraintsDataAsset.h"
+#include "KawaiiPhysicsLimitsDataAsset.h"
+#include "Widgets/Input/SButton.h"
+#include "Framework/Notifications/NotificationManager.h"
+#include "Selection.h"
+#include "Widgets/Text/STextBlock.h"
+#include "Widgets/Notifications/SNotificationList.h"
+#include "AssetRegistry/AssetRegistryModule.h"
+#include "Dialogs/DlgPickAssetPath.h"
+#include "Kismet2/CompilerResultsLog.h"
+#include "Widgets/Layout/SUniformGridPanel.h"
+
+#include UE_INLINE_GENERATED_CPP_BY_NAME(AnimGraphNode_KawaiiPhysics)
+
+#define LOCTEXT_NAMESPACE "KawaiiPhysics"
+
+// ----------------------------------------------------------------------------
+UAnimGraphNode_KawaiiPhysics::UAnimGraphNode_KawaiiPhysics(const FObjectInitializer& ObjectInitializer)
+	: Super(ObjectInitializer)
+{
+}
+
+FText UAnimGraphNode_KawaiiPhysics::GetControllerDescription() const
+{
+	return LOCTEXT("Kawaii Physics", "Kawaii Physics");
+}
+
+
+// ----------------------------------------------------------------------------
+FText UAnimGraphNode_KawaiiPhysics::GetNodeTitle(ENodeTitleType::Type TitleType) const
+{
+	if ((TitleType == ENodeTitleType::ListView || TitleType == ENodeTitleType::MenuTitle))
+	{
+		return GetControllerDescription();
+	}
+	// @TODO: the bone can be altered in the property editor, so we have to 
+	//        choose to mark this dirty when that happens for this to properly work
+	//if (!CachedNodeTitles.IsTitleCached(TitleType, this))
+
+	FFormatNamedArguments Args;
+	Args.Add(TEXT("ControllerDescription"), GetControllerDescription());
+	Args.Add(TEXT("RootBoneName"), FText::FromName(Node.RootBone.BoneName));
+	Args.Add(TEXT("Tag"), FText::FromString(Node.KawaiiPhysicsTag.ToString()));
+
+	// FText::Format() is slow, so we cache this to save on performance
+	if (TitleType == ENodeTitleType::ListView || TitleType == ENodeTitleType::MenuTitle)
+	{
+		const FText Title = Node.KawaiiPhysicsTag.IsValid()
+			                    ? FText::Format(
+				                    LOCTEXT("AnimGraphNode_KawaiiPhysics_ListTitle",
+				                            "{ControllerDescription} - Root: {RootBoneName} - Tag: {Tag}"), Args)
+			                    : FText::Format(
+				                    LOCTEXT("AnimGraphNode_KawaiiPhysics_ListTitle",
+				                            "{ControllerDescription} - Root: {RootBoneName}"), Args);
+
+		CachedNodeTitles.SetCachedTitle(TitleType, Title, this);
+	}
+	else
+	{
+		const FText Title = Node.KawaiiPhysicsTag.IsValid()
+			                    ? FText::Format(
+				                    LOCTEXT("AnimGraphNode_KawaiiPhysics_Title",
+				                            "{ControllerDescription}\nRoot: {RootBoneName}\nTag:  {Tag} "), Args)
+			                    : FText::Format(
+				                    LOCTEXT("AnimGraphNode_KawaiiPhysics_Title",
+				                            "{ControllerDescription}\nRoot: {RootBoneName}"), Args);
+
+		CachedNodeTitles.SetCachedTitle(TitleType, Title, this);
+	}
+	return CachedNodeTitles[TitleType];
+}
+
+void UAnimGraphNode_KawaiiPhysics::PostEditChangeProperty(struct FPropertyChangedEvent& PropertyChangedEvent)
+{
+	Super::PostEditChangeProperty(PropertyChangedEvent);
+
+	Node.ModifyBones.Empty();
+	ReconstructNode();
+}
+
+FEditorModeID UAnimGraphNode_KawaiiPhysics::GetEditorMode() const
+{
+	return "AnimGraph.SkeletalControl.KawaiiPhysics";
+}
+
+void UAnimGraphNode_KawaiiPhysics::ValidateAnimNodePostCompile(FCompilerResultsLog& MessageLog,
+                                                               UAnimBlueprintGeneratedClass* CompiledClass,
+                                                               int32 CompiledNodeIndex)
+{
+	UAnimGraphNode_SkeletalControlBase::ValidateAnimNodePostCompile(MessageLog, CompiledClass, CompiledNodeIndex);
+
+	Node.RootBone.Initialize(CompiledClass->TargetSkeleton);
+	if (Node.RootBone.BoneIndex >= 0)
+	{
+		if (Node.ExcludeBones.Contains(Node.RootBone))
+		{
+			MessageLog.Warning(TEXT("@@ ExcludeBones should NOT has RootBone."), this);
+		}
+	}
+	// for template ABP
+	else if (CompiledClass->TargetSkeleton)
+	{
+		MessageLog.Warning(TEXT("@@ RootBone is empty."), this);
+	}
+}
+
+void UAnimGraphNode_KawaiiPhysics::CopyNodeDataToPreviewNode(FAnimNode_Base* AnimNode)
+{
+	FAnimNode_KawaiiPhysics* KawaiiPhysics = static_cast<FAnimNode_KawaiiPhysics*>(AnimNode);
+
+	// pushing properties to preview instance, for live editing
+	// Default
+	KawaiiPhysics->RootBone = Node.RootBone;
+	KawaiiPhysics->ExcludeBones = Node.ExcludeBones;
+	KawaiiPhysics->AdditionalRootBones = Node.AdditionalRootBones;
+	KawaiiPhysics->TargetFramerate = Node.TargetFramerate;
+	KawaiiPhysics->OverrideTargetFramerate = Node.OverrideTargetFramerate;
+
+	// Physics Settings
+	KawaiiPhysics->PhysicsSettings = Node.PhysicsSettings;
+	KawaiiPhysics->DampingCurveData = Node.DampingCurveData;
+	KawaiiPhysics->WorldDampingLocationCurveData = Node.WorldDampingLocationCurveData;
+	KawaiiPhysics->WorldDampingRotationCurveData = Node.WorldDampingRotationCurveData;
+	KawaiiPhysics->StiffnessCurveData = Node.StiffnessCurveData;
+	KawaiiPhysics->RadiusCurveData = Node.RadiusCurveData;
+	KawaiiPhysics->LimitAngleCurveData = Node.LimitAngleCurveData;
+	KawaiiPhysics->bUpdatePhysicsSettingsInGame = Node.bUpdatePhysicsSettingsInGame;
+	KawaiiPhysics->PlanarConstraint = Node.PlanarConstraint;
+	KawaiiPhysics->ResetBoneTransformWhenBoneNotFound = Node.ResetBoneTransformWhenBoneNotFound;
+
+	// DummyBone
+	KawaiiPhysics->DummyBoneLength = Node.DummyBoneLength;
+	KawaiiPhysics->BoneForwardAxis = Node.BoneForwardAxis;
+
+	// Limits
+	KawaiiPhysics->SphericalLimits = Node.SphericalLimits;
+	KawaiiPhysics->CapsuleLimits = Node.CapsuleLimits;
+	KawaiiPhysics->BoxLimits = Node.BoxLimits;
+	KawaiiPhysics->PlanarLimits = Node.PlanarLimits;
+	KawaiiPhysics->LimitsDataAsset = Node.LimitsDataAsset;
+	KawaiiPhysics->PhysicsAssetForLimits = Node.PhysicsAssetForLimits;
+
+	// ExternalForce
+	KawaiiPhysics->Gravity = Node.Gravity;
+	KawaiiPhysics->ExternalForces = Node.ExternalForces;
+	KawaiiPhysics->CustomExternalForces = Node.CustomExternalForces;
+
+	// Wind
+	KawaiiPhysics->bEnableWind = Node.bEnableWind;
+	KawaiiPhysics->WindScale = Node.WindScale;
+
+	// BoneConstraint
+	KawaiiPhysics->BoneConstraintGlobalComplianceType = Node.BoneConstraintGlobalComplianceType;
+	KawaiiPhysics->BoneConstraintIterationCountBeforeCollision = Node.BoneConstraintIterationCountBeforeCollision;
+	KawaiiPhysics->BoneConstraintIterationCountAfterCollision = Node.BoneConstraintIterationCountAfterCollision;
+	KawaiiPhysics->bAutoAddChildDummyBoneConstraint = Node.bAutoAddChildDummyBoneConstraint;
+	KawaiiPhysics->BoneConstraints = Node.BoneConstraints;
+	KawaiiPhysics->BoneConstraintsDataAsset = Node.BoneConstraintsDataAsset;
+
+	// SimulationSpace
+	KawaiiPhysics->SimulationSpace = Node.SimulationSpace;
+	KawaiiPhysics->SimulationBaseBone = Node.SimulationBaseBone;
+
+	// Reset for sync without compile
+	KawaiiPhysics->ModifyBones.Empty();
+}
+
+void UAnimGraphNode_KawaiiPhysics::CustomizeDetailTools(IDetailLayoutBuilder& DetailBuilder)
+{
+	IDetailCategoryBuilder& ViewportCategory = DetailBuilder.EditCategory(TEXT("Kawaii Physics Tools"));
+	FDetailWidgetRow& WidgetRow = ViewportCategory.AddCustomRow(LOCTEXT("KawaiiPhysics", "KawaiiPhysicsTools"));
+
+	WidgetRow
+	[
+		SNew(SUniformGridPanel)
+		.SlotPadding(FMargin(2, 0, 2, 0))
+		+ SUniformGridPanel::Slot(0, 0)
+		[
+			SNew(SButton)
+			.HAlign(HAlign_Center)
+			.VAlign(VAlign_Center)
+			.OnClicked_Lambda([this]()
+			{
+				this->ExportLimitsDataAsset();
+				return FReply::Handled();
+			})
+			.Content()
+			[
+				SNew(STextBlock)
+				.Text(FText::FromString(TEXT("Export Limits")))
+			]
+		]
+		+ SUniformGridPanel::Slot(1, 0)
+		[
+			SNew(SButton)
+			.HAlign(HAlign_Center)
+			.VAlign(VAlign_Center)
+			.OnClicked_Lambda([this]()
+			{
+				this->ExportBoneConstraintsDataAsset();
+				return FReply::Handled();
+			})
+			.Content()
+			[
+				SNew(STextBlock)
+				.Text(FText::FromString(TEXT("Export BoneConstraints")))
+			]
+		]
+	];
+}
+
+void UAnimGraphNode_KawaiiPhysics::CustomizeDetailDebugVisualizations(IDetailLayoutBuilder& DetailBuilder)
+{
+	IDetailCategoryBuilder& ViewportCategory = DetailBuilder.EditCategory(TEXT("Debug Visualization"));
+	FDetailWidgetRow& WidgetRow = ViewportCategory.AddCustomRow(
+		LOCTEXT("ToggleDebugVisualizationButtonRow", "DebugVisualization"));
+
+	WidgetRow
+	[
+		SNew(SUniformGridPanel)
+		.SlotPadding(FMargin(2, 0, 2, 0))
+		// Show/Hide Bones button.
+		+ SUniformGridPanel::Slot(0, 0)
+		[
+			SNew(SButton)
+			.HAlign(HAlign_Center)
+			.VAlign(VAlign_Center)
+			.OnClicked_Lambda([this]()
+			{
+				this->bEnableDebugDrawBone = !this->bEnableDebugDrawBone;
+				return FReply::Handled();
+			})
+			.ButtonColorAndOpacity_Lambda([this]()
+			{
+				return this->bEnableDebugDrawBone
+					       ? FAppStyle::Get().GetSlateColor("Colors.AccentGreen")
+					       : FAppStyle::Get().GetSlateColor("Colors.AccentRed");
+			})
+			.Content()
+			[
+				SNew(STextBlock)
+				.Text_Lambda([this]() { return LOCTEXT("ShowBoneText", "Bone"); })
+			]
+		]
+		// Show/Hide LengthRate button.
+		+ SUniformGridPanel::Slot(1, 0)
+		[
+			SNew(SButton)
+			.HAlign(HAlign_Center)
+			.VAlign(VAlign_Center)
+			.OnClicked_Lambda([this]()
+			{
+				this->bEnableDebugBoneLengthRate = !this->bEnableDebugBoneLengthRate;
+				return FReply::Handled();
+			})
+			.ButtonColorAndOpacity_Lambda([this]()
+			{
+				return this->bEnableDebugBoneLengthRate
+					       ? FAppStyle::Get().GetSlateColor("Colors.AccentGreen")
+					       : FAppStyle::Get().GetSlateColor("Colors.AccentRed");
+			})
+			.Content()
+			[
+				SNew(STextBlock)
+				.Text_Lambda([this]() { return LOCTEXT("ShowLengthRateText", "Length Rate"); })
+			]
+		]
+		// Show/Hide AngleLimit button.
+		+ SUniformGridPanel::Slot(2, 0)
+		[
+			SNew(SButton)
+			.HAlign(HAlign_Center)
+			.VAlign(VAlign_Center)
+			.OnClicked_Lambda([this]()
+			{
+				this->bEnableDebugDrawLimitAngle = !this->bEnableDebugDrawLimitAngle;
+				return FReply::Handled();
+			})
+			.ButtonColorAndOpacity_Lambda([this]()
+			{
+				return this->bEnableDebugDrawLimitAngle
+					       ? FAppStyle::Get().GetSlateColor("Colors.AccentGreen")
+					       : FAppStyle::Get().GetSlateColor("Colors.AccentRed");
+			})
+			.Content()
+			[
+				SNew(STextBlock)
+				.Text_Lambda([this]() { return LOCTEXT("ShowLimitAngleText", "Limit Angle"); })
+			]
+		]
+		// Show/Hide SphereLimit button.
+		+ SUniformGridPanel::Slot(0, 1)
+		[
+			SNew(SButton)
+			.HAlign(HAlign_Center)
+			.VAlign(VAlign_Center)
+			.OnClicked_Lambda([this]()
+			{
+				this->bEnableDebugDrawSphereLimit = !this->bEnableDebugDrawSphereLimit;
+				return FReply::Handled();
+			})
+			.ButtonColorAndOpacity_Lambda([this]()
+			{
+				return this->bEnableDebugDrawSphereLimit
+					       ? FAppStyle::Get().GetSlateColor("Colors.AccentGreen")
+					       : FAppStyle::Get().GetSlateColor("Colors.AccentRed");
+			})
+			.Content()
+			[
+				SNew(STextBlock)
+				.Text_Lambda([this]() { return LOCTEXT("ShowSphereLimitText", "Sphere Limit"); })
+			]
+		]
+		// Show/Hide CapsuleLimit button.
+		+ SUniformGridPanel::Slot(1, 1)
+		[
+			SNew(SButton)
+			.HAlign(HAlign_Center)
+			.VAlign(VAlign_Center)
+			.OnClicked_Lambda([this]()
+			{
+				this->bEnableDebugDrawCapsuleLimit = !this->bEnableDebugDrawCapsuleLimit;
+				return FReply::Handled();
+			})
+			.ButtonColorAndOpacity_Lambda([this]()
+			{
+				return this->bEnableDebugDrawCapsuleLimit
+					       ? FAppStyle::Get().GetSlateColor("Colors.AccentGreen")
+					       : FAppStyle::Get().GetSlateColor("Colors.AccentRed");
+			})
+			.Content()
+			[
+				SNew(STextBlock)
+				.Text_Lambda([this]() { return LOCTEXT("ShowCapsuleLimitText", "Capsule Limit"); })
+			]
+		]
+		// Show/Hide BoxLimit button.
+		+ SUniformGridPanel::Slot(2, 1)
+		[
+			SNew(SButton)
+			.HAlign(HAlign_Center)
+			.VAlign(VAlign_Center)
+			.OnClicked_Lambda([this]()
+			{
+				this->bEnableDebugDrawBoxLimit = !this->bEnableDebugDrawBoxLimit;
+				return FReply::Handled();
+			})
+			.ButtonColorAndOpacity_Lambda([this]()
+			{
+				return this->bEnableDebugDrawBoxLimit
+					       ? FAppStyle::Get().GetSlateColor("Colors.AccentGreen")
+					       : FAppStyle::Get().GetSlateColor("Colors.AccentRed");
+			})
+			.Content()
+			[
+				SNew(STextBlock)
+				.Text_Lambda([this]() { return LOCTEXT("ShowBoxLimitText", "Box Limit"); })
+			]
+		]
+		// Show/Hide PlanerLimit button.
+		+ SUniformGridPanel::Slot(0, 2)
+		[
+			SNew(SButton)
+			.HAlign(HAlign_Center)
+			.VAlign(VAlign_Center)
+			.OnClicked_Lambda([this]()
+			{
+				this->bEnableDebugDrawPlanerLimit = !this->bEnableDebugDrawPlanerLimit;
+				return FReply::Handled();
+			})
+			.ButtonColorAndOpacity_Lambda([this]()
+			{
+				return this->bEnableDebugDrawPlanerLimit
+					       ? FAppStyle::Get().GetSlateColor("Colors.AccentGreen")
+					       : FAppStyle::Get().GetSlateColor("Colors.AccentRed");
+			})
+			.Content()
+			[
+				SNew(STextBlock)
+				.Text_Lambda([this]() { return LOCTEXT("ShowPlanerLimitText", "Planer Limit"); })
+			]
+		]
+		// Show/Hide BoneConstraint button.
+		+ SUniformGridPanel::Slot(1, 2)
+		[
+			SNew(SButton)
+			.HAlign(HAlign_Center)
+			.VAlign(VAlign_Center)
+			.OnClicked_Lambda([this]()
+			{
+				this->bEnableDebugDrawBoneConstraint = !this->bEnableDebugDrawBoneConstraint;
+				return FReply::Handled();
+			})
+			.ButtonColorAndOpacity_Lambda([this]()
+			{
+				return this->bEnableDebugDrawBoneConstraint
+					       ? FAppStyle::Get().GetSlateColor("Colors.AccentGreen")
+					       : FAppStyle::Get().GetSlateColor("Colors.AccentRed");
+			})
+			.Content()
+			[
+				SNew(STextBlock)
+				.Text_Lambda([this]() { return LOCTEXT("ShowBoneConstraintText", "Bone Constraint"); })
+			]
+		]
+		// Show/Hide ExternalForce button.
+		+ SUniformGridPanel::Slot(2, 2)
+		[
+			SNew(SButton)
+			.HAlign(HAlign_Center)
+			.VAlign(VAlign_Center)
+			.OnClicked_Lambda([this]()
+			{
+				this->bEnableDebugDrawExternalForce = !this->bEnableDebugDrawExternalForce;
+				return FReply::Handled();
+			})
+			.ButtonColorAndOpacity_Lambda([this]()
+			{
+				return this->bEnableDebugDrawExternalForce
+					       ? FAppStyle::Get().GetSlateColor("Colors.AccentGreen")
+					       : FAppStyle::Get().GetSlateColor("Colors.AccentRed");
+			})
+			.Content()
+			[
+				SNew(STextBlock)
+				.Text_Lambda([this]() { return LOCTEXT("ShowExternalForceText", "External Force"); })
+			]
+		]
+	];
+}
+
+void UAnimGraphNode_KawaiiPhysics::CustomizeDetails(IDetailLayoutBuilder& DetailBuilder)
+{
+	Super::CustomizeDetails(DetailBuilder);
+
+	CustomizeDetailTools(DetailBuilder);
+	CustomizeDetailDebugVisualizations(DetailBuilder);
+
+	// Force order of details panel categories - Must set order for all of them as any that are edited automatically move to the top.
+	auto CategorySorter = [](const TMap<FName, IDetailCategoryBuilder*>& Categories)
+	{
+		int32 Order = 0;
+		auto SafeSetOrder = [&Categories, &Order](const FName& CategoryName)
+		{
+			if (IDetailCategoryBuilder* const* Builder = Categories.Find(CategoryName))
+			{
+				(*Builder)->SetSortOrder(Order++);
+			}
+		};
+
+		// Tools, Debug
+		SafeSetOrder(FName("Kawaii Physics Tools"));
+		SafeSetOrder(FName("Debug Visualization"));
+		SafeSetOrder(FName("Functions"));
+
+		// Basic
+		SafeSetOrder(FName("Bones"));
+		SafeSetOrder(FName("Physics Settings"));
+		SafeSetOrder(FName("Physics Settings Advanced"));
+
+		// Limits
+		SafeSetOrder(FName("Limits"));
+		SafeSetOrder(FName("Bone Constraint (Experimental)"));
+
+		// Other
+		SafeSetOrder(FName("World Collision"));
+		SafeSetOrder(FName("ExternalForce"));
+
+		// AnimNode
+		SafeSetOrder(FName("Tag"));
+		SafeSetOrder(FName("Alpha"));
+	};
+
+	DetailBuilder.SortCategories(CategorySorter);
+}
+
+struct FKawaiiPhysicsVersion
+{
+	enum Type
+	{
+		BeforeCustomVersionWasAdded,
+		UseRuntimeFloatCurve,
+		// -----<new versions can be added above this line>-------------------------------------------------
+		VersionPlusOne,
+		LatestVersion = VersionPlusOne - 1
+	};
+
+	// The GUID for this custom version number
+	const static FGuid GUID;
+
+private:
+	FKawaiiPhysicsVersion()
+	{
+	};
+};
+
+const FGuid FKawaiiPhysicsVersion::GUID(0x4B2D3E25, 0xCD681D29, 0x2DB298D7, 0xAD3E55FA);
+
+const FCustomVersionRegistration GRegisterKawaiiPhysCustomVersion(FKawaiiPhysicsVersion::GUID,
+                                                                  FKawaiiPhysicsVersion::LatestVersion,
+                                                                  TEXT("Kawaii-Phys"));
+
+void UAnimGraphNode_KawaiiPhysics::Serialize(FArchive& Ar)
+{
+	Super::Serialize(Ar);
+
+	Ar.UsingCustomVersion(FKawaiiPhysicsVersion::GUID);
+}
+
+void UAnimGraphNode_KawaiiPhysics::CreateExportDataAssetPath(FString& PackageName, const FString& DefaultSuffix) const
+{
+	FString AssetName;
+	const FString AnimBlueprintPath = GetAnimBlueprint()->GetPackage()->GetName();
+	const FAssetToolsModule& AssetToolsModule = FModuleManager::GetModuleChecked<FAssetToolsModule>("AssetTools");
+	AssetToolsModule.Get().CreateUniqueAssetName(AnimBlueprintPath, DefaultSuffix, PackageName, AssetName);
+}
+
+UPackage* UAnimGraphNode_KawaiiPhysics::CreateDataAssetPackage(const FString& DialogTitle, const FString& DefaultSuffix,
+                                                               FString& AssetName) const
+{
+	FString PackageName;
+	CreateExportDataAssetPath(PackageName, DefaultSuffix);
+
+	const TSharedRef<SDlgPickAssetPath> NewAssetDlg =
+		SNew(SDlgPickAssetPath)
+		.Title(FText::FromString(DialogTitle))
+		.DefaultAssetPath(FText::FromString(PackageName));
+
+	if (NewAssetDlg->ShowModal() == EAppReturnType::Cancel)
+	{
+		return nullptr;
+	}
+
+	const FString PackagePath(NewAssetDlg->GetFullAssetPath().ToString());
+	AssetName = NewAssetDlg->GetAssetName().ToString();
+
+	return CreatePackage(*PackagePath);
+}
+
+void UAnimGraphNode_KawaiiPhysics::ShowExportAssetNotification(UObject* NewAsset,
+                                                               FText NotificationText)
+{
+	FNotificationInfo NotificationInfo(NotificationText);
+	NotificationInfo.ExpireDuration = 5.0f;
+	NotificationInfo.Hyperlink = FSimpleDelegate::CreateLambda([NewAsset]()
+	{
+		GEditor->GetEditorSubsystem<UAssetEditorSubsystem>()->OpenEditorForAsset(NewAsset);
+	});
+	NotificationInfo.HyperlinkText = LOCTEXT("OpenCreatedAsset", "Open Created Asset");
+
+	TSharedPtr<SNotificationItem> NotificationItem = FSlateNotificationManager::Get().AddNotification(
+		NotificationInfo);
+	NotificationItem->SetCompletionState(SNotificationItem::CS_Success);
+}
+
+void UAnimGraphNode_KawaiiPhysics::ExportLimitsDataAsset()
+{
+	FString AssetName;
+	UPackage* Package = CreateDataAssetPackage(
+		TEXT("Choose Location for Collision Data Asset"), TEXT("_Collision"), AssetName);
+	if (!Package)
+	{
+		return;
+	}
+
+	if (UKawaiiPhysicsLimitsDataAsset* NewDataAsset =
+		NewObject<UKawaiiPhysicsLimitsDataAsset>(Package, UKawaiiPhysicsLimitsDataAsset::StaticClass(),
+		                                         FName(AssetName), RF_Public | RF_Standalone))
+	{
+		// look for a valid component in the object being debugged,
+		// we might be set to something other than the preview.
+		if (UObject* ObjectBeingDebugged = GetAnimBlueprint()->GetObjectBeingDebugged())
+		{
+			if (const UAnimInstance* InstanceBeingDebugged = Cast<UAnimInstance>(ObjectBeingDebugged))
+			{
+				NewDataAsset->Skeleton = InstanceBeingDebugged->CurrentSkeleton;
+			}
+		}
+
+		// copy data
+		auto CopyLimits = [&](auto& DataLimits, auto& SourceLimits)
+		{
+			DataLimits = SourceLimits;
+			for (auto& DataLimit : DataLimits)
+			{
+				DataLimit.SourceType = ECollisionSourceType::DataAsset;
+			}
+		};
+		CopyLimits(NewDataAsset->SphericalLimits, Node.SphericalLimits);
+		CopyLimits(NewDataAsset->CapsuleLimits, Node.CapsuleLimits);
+		CopyLimits(NewDataAsset->BoxLimits, Node.BoxLimits);
+		CopyLimits(NewDataAsset->PlanarLimits, Node.PlanarLimits);
+
+		// select new asset
+		USelection* SelectionSet = GEditor->GetSelectedObjects();
+		SelectionSet->DeselectAll();
+		SelectionSet->Select(NewDataAsset);
+
+		FAssetRegistryModule::AssetCreated(NewDataAsset);
+		Package->MarkPackageDirty();
+
+		// Add Notification
+		FText NotificationText = FText::Format(
+			LOCTEXT("ExportedLimitsDataAsset", "Exposted Limits Data Asset: {0}"), FText::FromString(AssetName));
+		ShowExportAssetNotification(NewDataAsset, NotificationText);
+	}
+}
+
+void UAnimGraphNode_KawaiiPhysics::ExportBoneConstraintsDataAsset()
+{
+	FString AssetName;
+	UPackage* Package = CreateDataAssetPackage(
+		TEXT("Choose Location for BoneConstraints Data Asset"), TEXT("_BoneConstraint"), AssetName);
+	if (!Package)
+	{
+		return;
+	}
+
+	if (UKawaiiPhysicsBoneConstraintsDataAsset* NewDataAsset =
+		NewObject<UKawaiiPhysicsBoneConstraintsDataAsset>(
+			Package, UKawaiiPhysicsBoneConstraintsDataAsset::StaticClass(),
+			FName(AssetName), RF_Public | RF_Standalone))
+	{
+		// look for a valid component in the object being debugged,
+		// we might be set to something other than the preview.
+		if (UObject* ObjectBeingDebugged = GetAnimBlueprint()->GetObjectBeingDebugged())
+		{
+			if (const UAnimInstance* InstanceBeingDebugged = Cast<UAnimInstance>(ObjectBeingDebugged))
+			{
+				NewDataAsset->PreviewSkeleton = InstanceBeingDebugged->CurrentSkeleton;
+				NewDataAsset->UpdatePreviewBoneList();
+			}
+		}
+
+		// copy data
+		NewDataAsset->BoneConstraintsData.SetNum(Node.BoneConstraints.Num());
+		for (int32 i = 0; i < Node.BoneConstraints.Num(); i++)
+		{
+			NewDataAsset->BoneConstraintsData[i].Update(Node.BoneConstraints[i]);
+		}
+
+		// select new asset
+		USelection* SelectionSet = GEditor->GetSelectedObjects();
+		SelectionSet->DeselectAll();
+		SelectionSet->Select(NewDataAsset);
+
+		FAssetRegistryModule::AssetCreated(NewDataAsset);
+		Package->MarkPackageDirty();
+
+		// Add Notification
+		FText NotificationText = FText::Format(
+			LOCTEXT("ExportedBoneConstraintsDataAsset", "Exposted BoneConstraints Data Asset: {0}"),
+			FText::FromString(AssetName));
+		ShowExportAssetNotification(NewDataAsset, NotificationText);
+	}
+}
+
+#undef LOCTEXT_NAMESPACE

Plugins/KawaiiPhysics/Source/KawaiiPhysicsEd/Private/KawaiiPhysicsEd.cpp

@@ -0,0 +1,27 @@
+// KawaiiPhysics : Copyright (c) 2019-2024 pafuhana1213, MIT License
+
+#include "KawaiiPhysicsEd.h"
+#include "Modules/ModuleManager.h"
+#include "Textures/SlateIcon.h"
+#include "KawaiiPhysicsEditMode.h"
+
+#define LOCTEXT_NAMESPACE "FKawaiiPhysicsModuleEd"
+
+
+void FKawaiiPhysicsEdModule::StartupModule()
+{
+	FEditorModeRegistry::Get().RegisterMode<FKawaiiPhysicsEditMode>("AnimGraph.SkeletalControl.KawaiiPhysics",
+	                                                                LOCTEXT("FKawaiiPhysicsEditMode", "Kawaii Physics"),
+	                                                                FSlateIcon(), false);
+}
+
+
+void FKawaiiPhysicsEdModule::ShutdownModule()
+{
+	FEditorModeRegistry::Get().UnregisterMode("AnimGraph.SkeletalControl.KawaiiPhysics");
+}
+
+#undef LOCTEXT_NAMESPACE
+
+IMPLEMENT_MODULE(FKawaiiPhysicsEdModule, KawaiiPhysicsEd)
+//IMPLEMENT_PRIMARY_GAME_MODULE( FDefaultGameModuleImpl, KawaiiPhysicsEd, "KawaiiPhysicsEd" );

Plugins/KawaiiPhysics/Source/KawaiiPhysicsEd/Public/AnimGraphNode_KawaiiPhysics.h

@@ -0,0 +1,106 @@
+// KawaiiPhysics : Copyright (c) 2019-2024 pafuhana1213, MIT License
+
+#pragma once
+
+#include "AnimGraphNode_Base.h"
+#include "AnimNode_KawaiiPhysics.h"
+#include "AnimGraphNode_SkeletalControlBase.h"
+#include "EdGraph/EdGraphNodeUtils.h"
+
+#include "AnimGraphNode_KawaiiPhysics.generated.h"
+
+class FCompilerResultsLog;
+
+UCLASS()
+class UAnimGraphNode_KawaiiPhysics : public UAnimGraphNode_SkeletalControlBase
+{
+	GENERATED_UCLASS_BODY()
+	UPROPERTY(EditAnywhere, Category = Settings)
+	FAnimNode_KawaiiPhysics Node;
+
+	virtual FText GetNodeTitle(ENodeTitleType::Type TitleType) const override;
+
+	// UObject interface
+	virtual void PostEditChangeProperty(struct FPropertyChangedEvent& PropertyChangedEvent) override;
+
+protected:
+	// UAnimGraphNode_Base interface
+	virtual FEditorModeID GetEditorMode() const override;
+	virtual void ValidateAnimNodePostCompile(FCompilerResultsLog& MessageLog,
+	                                         UAnimBlueprintGeneratedClass* CompiledClass,
+	                                         int32 CompiledNodeIndex) override;
+	virtual void CopyNodeDataToPreviewNode(FAnimNode_Base* AnimNode) override;
+	virtual void CustomizeDetails(IDetailLayoutBuilder& DetailBuilder) override;
+	// End of UAnimGraphNode_Base interface
+
+	//virtual FText GetControllerDescription() const override;
+	virtual FText GetControllerDescription() const override;
+	virtual const FAnimNode_SkeletalControlBase* GetNode() const override { return &Node; }
+	// End of UAnimGraphNode_SkeletalControlBase interface
+
+	// UObject interface
+	virtual void Serialize(FArchive& Ar) override;
+
+	// End of UObject interface
+
+	virtual void CustomizeDetailTools(IDetailLayoutBuilder& DetailBuilder);
+	virtual void CustomizeDetailDebugVisualizations(IDetailLayoutBuilder& DetailBuilder);
+
+private:
+	/** Creates the export data asset path. */
+	void CreateExportDataAssetPath(FString& PackageName, const FString& DefaultSuffix) const;
+
+	/** Creates the data asset package. */
+	UPackage* CreateDataAssetPackage(const FString& DialogTitle, const FString& DefaultSuffix,
+	                                 FString& AssetName) const;
+
+	/** Shows the export asset notification. */
+	void ShowExportAssetNotification(UObject* NewAsset, FText NotificationText);
+
+	/** Exports the limits data asset. */
+	void ExportLimitsDataAsset();
+
+	/** Exports the bone constraints data asset. */
+	void ExportBoneConstraintsDataAsset();
+
+public:
+	/** Enables or disables debug drawing for bones. */
+	UPROPERTY()
+	bool bEnableDebugDrawBone = true;
+
+	/** Enables or disables debug drawing for bone length rate. */
+	UPROPERTY()
+	bool bEnableDebugBoneLengthRate = true;
+
+	/** Enables or disables debug drawing for limit angles. */
+	UPROPERTY()
+	bool bEnableDebugDrawLimitAngle = true;
+
+	/** Enables or disables debug drawing for spherical limits. */
+	UPROPERTY()
+	bool bEnableDebugDrawSphereLimit = true;
+
+	/** Enables or disables debug drawing for capsule limits. */
+	UPROPERTY()
+	bool bEnableDebugDrawCapsuleLimit = true;
+
+	/** Enables or disables debug drawing for box limits. */
+	UPROPERTY()
+	bool bEnableDebugDrawBoxLimit = true;
+
+	/** Enables or disables debug drawing for planar limits. */
+	UPROPERTY()
+	bool bEnableDebugDrawPlanerLimit = true;
+
+	/** Enables or disables debug drawing for bone constraints. */
+	UPROPERTY()
+	bool bEnableDebugDrawBoneConstraint = true;
+
+	/** Enables or disables debug drawing for external forces. */
+	UPROPERTY()
+	bool bEnableDebugDrawExternalForce = true;
+
+private:
+	/** Constructing FText strings can be costly, so we cache the node's title */
+	FNodeTitleTextTable CachedNodeTitles;
+};

Plugins/KawaiiPhysics/Source/KawaiiPhysicsEd/Public/KawaiiPhysicsEd.h

@@ -0,0 +1,13 @@
+// KawaiiPhysics : Copyright (c) 2019-2024 pafuhana1213, MIT License
+
+#pragma once
+
+#include "CoreMinimal.h"
+
+class FKawaiiPhysicsEdModule : public IModuleInterface
+{
+public:
+	/** IModuleInterface implementation */
+	virtual void StartupModule() override;
+	virtual void ShutdownModule() override;
+};

Plugins/KawaiiPhysics/Source/KawaiiPhysicsEd/Public/KawaiiPhysicsEditMode.h

@@ -0,0 +1,95 @@
+// KawaiiPhysics : Copyright (c) 2019-2024 pafuhana1213, MIT License
+
+#pragma once
+
+#include "AnimNodeEditMode.h"
+#include "AnimGraphNode_KawaiiPhysics.h"
+#include "AnimNode_KawaiiPhysics.h"
+
+#define UE_WIDGET UE::Widget
+
+class FEditorViewportClient;
+class FPrimitiveDrawInterface;
+class USkeletalMeshComponent;
+struct FViewportClick;
+
+class FKawaiiPhysicsEditMode : public FAnimNodeEditMode
+{
+public:
+	FKawaiiPhysicsEditMode();
+
+	/** IAnimNodeEditMode interface */
+	virtual void EnterMode(class UAnimGraphNode_Base* InEditorNode, struct FAnimNode_Base* InRuntimeNode) override;
+	virtual void ExitMode() override;
+	virtual FVector GetWidgetLocation() const override;
+	virtual UE_WIDGET::EWidgetMode GetWidgetMode() const override;
+	virtual ECoordSystem GetWidgetCoordinateSystem() const override;
+	virtual void DoTranslation(FVector& InTranslation) override;
+	virtual void DoRotation(FRotator& InRotation) override;
+	virtual void DoScale(FVector& InScale) override;
+
+	/** FEdMode interface */
+	virtual void Render(const FSceneView* View, FViewport* Viewport, FPrimitiveDrawInterface* PDI) override;
+	virtual bool HandleClick(FEditorViewportClient* InViewportClient, HHitProxy* HitProxy,
+	                         const FViewportClick& Click) override;
+	virtual bool GetCustomDrawingCoordinateSystem(FMatrix& InMatrix, void* InData) override;
+	virtual bool InputKey(FEditorViewportClient* InViewportClient, FViewport* InViewport, FKey InKey,
+	                      EInputEvent InEvent) override;
+	virtual bool ShouldDrawWidget() const override;
+	virtual void DrawHUD(FEditorViewportClient* ViewportClient, FViewport* Viewport, const FSceneView* View,
+	                     FCanvas* Canvas) override;
+
+protected:
+	void OnExternalNodePropertyChange(FPropertyChangedEvent& InPropertyEvent);
+	FDelegateHandle NodePropertyDelegateHandle;
+
+	void OnLimitDataAssetPropertyChange(FPropertyChangedEvent& InPropertyEvent);
+	bool IsSelectAnimNodeCollision() const;
+	FDelegateHandle LimitsDataAssetPropertyDelegateHandle;
+
+private:
+	void RenderModifyBones(FPrimitiveDrawInterface* PDI) const;
+	void RenderLimitAngle(FPrimitiveDrawInterface* PDI) const;
+
+	/** Render each collisions */
+	void RenderSphericalLimits(FPrimitiveDrawInterface* PDI) const;
+	void RenderCapsuleLimit(FPrimitiveDrawInterface* PDI) const;
+	void RenderBoxLimit(FPrimitiveDrawInterface* PDI) const;
+	void RenderPlanerLimit(FPrimitiveDrawInterface* PDI);
+
+	void RenderBoneConstraint(FPrimitiveDrawInterface* PDI) const;
+	void RenderExternalForces(FPrimitiveDrawInterface* PDI) const;
+
+	/** Helper function for GetWidgetLocation() and joint rendering */
+	FVector GetWidgetLocation(ECollisionLimitType CollisionType, int32 Index) const;
+
+	// methods to find a valid widget mode for gizmo because doesn't need to show gizmo when the mode is "Ignore"
+	UE_WIDGET::EWidgetMode FindValidWidgetMode(UE_WIDGET::EWidgetMode InWidgetMode) const;
+
+	/** Checking if a collision is selected and the collision is valid */
+	bool IsValidSelectCollision() const;
+
+	// Get Select Colliison Info
+	FCollisionLimitBase* GetSelectCollisionLimitRuntime() const;
+	FCollisionLimitBase* GetSelectCollisionLimitGraph() const;
+
+	/** Draw text func for DrawHUD */
+	void DrawTextItem(const FText& Text, FCanvas* Canvas, float X, float& Y, float FontHeight);
+	void Draw3DTextItem(const FText& Text, FCanvas* Canvas, const FSceneView* View, const FViewport* Viewport,
+	                    FVector Location);
+
+	/** Cache the typed nodes */
+	struct FAnimNode_KawaiiPhysics* RuntimeNode;
+	UAnimGraphNode_KawaiiPhysics* GraphNode;
+
+	/** The current bone selection mode */
+	ECollisionLimitType SelectCollisionType = ECollisionLimitType::None;
+	int32 SelectCollisionIndex = -1;
+	ECollisionSourceType SelectCollisionSourceType = ECollisionSourceType::AnimNode;
+
+	// storing current widget mode 
+	mutable UE_WIDGET::EWidgetMode CurWidgetMode;
+
+	// physics asset body material
+	TObjectPtr<UMaterialInstanceDynamic> PhysicsAssetBodyMaterial;
+};