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CryAnimation/CryCharDecal.h

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+/////////////////////////////////////////////////////////////////////////////////////////////////////
+//
+//	Crytek Character Animation source code
+//	
+//	History:
+//	  Sep 25 2002 :- Created by Sergiy Migdalskiy
+//
+/////////////////////////////////////////////////////////////////////////////////////////////////////
+
+#ifndef _CRY_ANIMATION_CRY_CHAR_DECAL_HDR_
+#define _CRY_ANIMATION_CRY_CHAR_DECAL_HDR_
+
+#define DECAL_USE_HELPERS 0
+
+#include <TArray.h>
+#include "SparseArrayDriver.h"
+#include "CryCharDecalCommon.h"
+
+
+//////////////////////////////////////////////////////////////////////////
+// the decal structure describing the realized decal with the geometry
+// it consists of primary faces/vertices (with the full set of getter methods declared with the special macro)
+// and helper faces/vertices. Primary faces index into the array of primary vertices. Primary vertices
+// refer to the indices of the character vertices and contain the new UVs
+// Helper vertices are explicitly set in the object CS, and helper faces index within those helper vertex array.
+class CryCharDecal
+{
+public:
+	// sets the current game time for decals (for fading in / out)
+	static void setGlobalTime (float fTime) {g_fCurrTime = fTime;}
+
+	// initializes it; expects the decal to come with vPos in LCS rather than WCS
+	CryCharDecal (){}
+	void buildFrom (class CryCharDecalBuilder& builder);
+
+	// starts fading out the decal from this moment on
+	void startFadeOut(float fTimeout);
+
+	// returns true if this is a dead/empty decal and should be discarded
+	bool isDead();
+
+	// natural order of decal sorting is by material (texture id)
+	bool operator < (const CryCharDecal& rThat)const
+	{
+		return getTextureId() < rThat.getTextureId();
+	}
+	
+
+	DECLARE_VECTOR_GETTER_METHODS(CryCharDecalFace, Face, Faces, m_arrFaces);
+	DECLARE_VECTOR_GETTER_METHODS(CryCharDecalVertex, Vertex, Vertices, m_arrVertices);
+
+#if DECAL_USE_HELPERS
+	// helper vertex access methods - see the class header comment for more info
+	unsigned numHelperFaces () const;
+	unsigned numHelperVertices() const;
+  Vec3 getHelperVertex (unsigned i) const;
+	CryUV getHelperUV (unsigned i) const;
+	CryCharDecalFace getHelperFace (unsigned i) const;
+
+	const Vec3& getSourceWCS()const;
+
+	void debugDraw(const Matrix& matCharacter);
+#endif
+	const Vec3& getSourceLCS () const;
+
+	int getTextureId ()const {return m_nTextureId;}
+
+	// returns the decal multiplier: 0 - no decal, 1 - full decal size
+	float getIntensity()const;
+protected:
+	// the faces comprising the decal
+	// the face that's the center of the decal is 0th
+	std::vector<CryCharDecalFace> m_arrFaces;
+
+	// the mapping of the new vertices to the old ones
+	std::vector<CryCharDecalVertex> m_arrVertices;
+
+	// the texture of the decal
+	int m_nTextureId;
+	
+	// the point, in LCS , where the shot was made
+	Vec3 m_ptSource;
+
+#if DECAL_USE_HELPERS
+	// the Transformation Matrix that transforms the point in helper CS
+	// into the character CS; Z axis is the direction of the bullet
+	Matrix m_matBullet;
+	float m_fSize;
+#endif
+
+	// this is the time when the decal was built, in seconds
+	float m_fBuildTime;
+
+	// this is the fade in time, in seconds
+	float m_fFadeInTime;
+
+	// this is the fade out time, in seconds; <0 at the start (means no fade out)
+	float m_fFadeOutTime;
+
+	// this is the time by which the decal should be faded out; 1e+30 at the start (very long life)
+	float m_fDeathTime;
+
+protected:
+	static float g_fCurrTime;
+};
+
+#endif