Update

Source/FLESHEditor/Public/AnatomicalStructureBrush.h

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+#pragma once
+
+#include "CoreMinimal.h"
+#include "UObject/NoExportTypes.h"
+#include "AnatomicalStructureBrush.generated.h"
+
+// Forward declarations
+class USkeletalMesh;
+class UStaticMesh;
+
+/**
+ * Anatomical brush type enumeration
+ */
+UENUM(BlueprintType)
+enum class EAnatomicalBrushType : uint8
+{
+	Bone,       // Bone brush
+	Muscle,     // Muscle brush
+	Organ,      // Organ brush
+	Vessel,     // Blood vessel brush
+	Nerve,      // Nerve brush
+	Custom      // Custom brush
+};
+
+/**
+ * Anatomical brush settings
+ */
+USTRUCT(BlueprintType)
+struct FAnatomicalBrushSettings
+{
+	GENERATED_BODY()
+
+	// Brush type
+	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "FLESH|Brush")
+	EAnatomicalBrushType BrushType = EAnatomicalBrushType::Bone;
+
+	// Brush size
+	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "FLESH|Brush", meta = (ClampMin = "0.1", ClampMax = "100.0"))
+	float BrushSize = 10.0f;
+
+	// Brush strength
+	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "FLESH|Brush", meta = (ClampMin = "0.0", ClampMax = "1.0"))
+	float BrushStrength = 0.5f;
+
+	// Brush falloff
+	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "FLESH|Brush", meta = (ClampMin = "0.0", ClampMax = "1.0"))
+	float BrushFalloff = 0.5f;
+
+	// Brush material
+	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "FLESH|Brush")
+	TObjectPtr<UMaterialInterface> BrushMaterial = nullptr;
+
+	// Brush mesh
+	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "FLESH|Brush")
+	TObjectPtr<UStaticMesh> BrushMesh = nullptr;
+
+	// Enable physics
+	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "FLESH|Brush")
+	bool bEnablePhysics = true;
+
+	// Physics density
+	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "FLESH|Brush", meta = (EditCondition = "bEnablePhysics"))
+	float PhysicsDensity = 1.0f;
+
+	// Physics elasticity
+	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "FLESH|Brush", meta = (EditCondition = "bEnablePhysics"))
+	float PhysicsElasticity = 0.5f;
+
+	// Fracture threshold
+	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "FLESH|Brush", meta = (EditCondition = "bEnablePhysics"))
+	float FractureThreshold = 100.0f;
+};
+
+/**
+ * Anatomical structure brush tool class
+ * Used for creating and editing anatomical structures in the editor
+ */
+UCLASS(BlueprintType)
+class FLESHEDITOR_API UAnatomicalStructureBrush : public UObject
+{
+	GENERATED_BODY()
+
+public:
+	// Constructor
+	UAnatomicalStructureBrush();
+
+	/**
+	 * Initialize the brush
+	 * @param InSettings - Brush settings
+	 */
+	UFUNCTION(BlueprintCallable, Category = "FLESH|Brush")
+	void Initialize(const FAnatomicalBrushSettings& InSettings);
+
+	/**
+	 * Apply brush to skeletal mesh
+	 * @param TargetMesh - Target skeletal mesh
+	 * @param Location - Application location
+	 * @param Direction - Application direction
+	 * @param BoneName - Bone name, if specified, only apply to this bone
+	 * @return Whether the application was successful
+	 */
+	UFUNCTION(BlueprintCallable, Category = "FLESH|Brush")
+	bool ApplyToSkeletalMesh(USkeletalMesh* TargetMesh, const FVector& Location, const FVector& Direction, FName BoneName = NAME_None);
+
+	/**
+	 * Apply brush to static mesh
+	 * @param TargetMesh - Target static mesh
+	 * @param Location - Application location
+	 * @param Direction - Application direction
+	 * @return Whether the application was successful
+	 */
+	UFUNCTION(BlueprintCallable, Category = "FLESH|Brush")
+	bool ApplyToStaticMesh(UStaticMesh* TargetMesh, const FVector& Location, const FVector& Direction);
+
+	/**
+	 * Set brush type
+	 * @param BrushType - Brush type
+	 */
+	UFUNCTION(BlueprintCallable, Category = "FLESH|Brush")
+	void SetBrushType(EAnatomicalBrushType BrushType);
+
+	/**
+	 * Set brush size
+	 * @param Size - Brush size
+	 */
+	UFUNCTION(BlueprintCallable, Category = "FLESH|Brush")
+	void SetBrushSize(float Size);
+
+	/**
+	 * Set brush strength
+	 * @param Strength - Brush strength
+	 */
+	UFUNCTION(BlueprintCallable, Category = "FLESH|Brush")
+	void SetBrushStrength(float Strength);
+
+	/**
+	 * Get brush settings
+	 * @return Current brush settings
+	 */
+	UFUNCTION(BlueprintCallable, Category = "FLESH|Brush")
+	FAnatomicalBrushSettings GetBrushSettings() const;
+
+private:
+	// Brush settings
+	UPROPERTY(EditAnywhere, Category = "FLESH|Brush")
+	FAnatomicalBrushSettings BrushSettings;
+
+	// Internal function for creating anatomical structure
+	UStaticMesh* CreateAnatomicalStructure(const FVector& Location, const FVector& Direction, float Size);
+
+	// Internal function for applying physics properties
+	void ApplyPhysicsProperties(UStaticMesh* Mesh);
+};