Setup player preview for equipment panel

2026-05-31 15:33:43 +03:00
parent e70b1d757c
commit f59fa8d948
42 changed files with 823 additions and 318 deletions
@@ -0,0 +1,45 @@
+// © 2025 Naked People Team. All Rights Reserved.
+
+#pragma once
+
+#include "CoreMinimal.h"
+#include "Subsystems/WorldSubsystem.h"
+#include "PlayerPreviewCaptureSubsystem.generated.h"
+
+DECLARE_DYNAMIC_MULTICAST_DELEGATE_OneParam(FOnPreviewCaptureActiveChanged, bool, bActive);
+
+/**
+ * Message bus between the equipment/inventory UI (C++) and the player-preview
+ * sublevel that renders the impostor into a SceneCapture2D for the equipment panel.
+ *
+ * The capture is expensive, so it must run only while the panel is open. The preview
+ * level's Level Blueprint owns the actual 30fps capture loop; it binds to
+ * OnPreviewCaptureActiveChanged to start/stop that loop. The UI flips the state via
+ * SetPreviewActive when the inventory screen activates / deactivates.
+ *
+ * A world subsystem is shared across the persistent level and its streamed sublevels,
+ * so the preview level and the main UI talk through the same instance without either
+ * needing a hard reference to the other.
+ */
+UCLASS()
+class NAKEDDESIRE_API UPlayerPreviewCaptureSubsystem : public UWorldSubsystem
+{
+	GENERATED_BODY()
+
+public:
+	// Called by the inventory/equipment UI on open (true) and close (false).
+	UFUNCTION(BlueprintCallable, Category = "Preview")
+	void SetPreviewActive(bool bActive);
+
+	UFUNCTION(BlueprintPure, Category = "Preview")
+	bool IsPreviewActive() const { return bPreviewActive; }
+
+	// Bound by the preview level's Level Blueprint to start/stop its 30fps capture loop.
+	// Read IsPreviewActive() on BeginPlay to sync initial state in case the panel was
+	// somehow already open when the sublevel streamed in.
+	UPROPERTY(BlueprintAssignable, Category = "Preview")
+	FOnPreviewCaptureActiveChanged OnPreviewCaptureActiveChanged;
+
+private:
+	bool bPreviewActive = false;
+};