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RenderDll/Common/RendElements/CREParticleSpray.h

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+
+#ifndef __CREPARTICLESPRAY_H__
+#define __CREPARTICLESPRAY_H__
+
+//=============================================================
+
+struct SParticle
+{
+  SParticle *prev,*next;       // LINK
+  Vec3d      pos;              // CURRENT POSITION
+  Vec3d      prevPos[8];       // PREVIOUS POSITION
+  Vec3d      realPos;          // CURRENT RENDER POSITION
+  Vec3d      dir;              // CURRENT DIRECTION WITH SPEED
+  Vec3d      moveDir;          // CURRENT CHANGE DIRECTION
+  int        life;             // HOW LONG IT WILL LAST
+  int        startLife;
+  
+  CFColor    color;            // CURRENT COLOR OF PARTICLE
+  CFColor    prevColor;        // LAST COLOR OF PARTICLE
+  CFColor    deltaColor;       // CHANGE OF COLOR
+
+  bool bSpark;
+
+  float curSize;
+  float deltaSize;
+};
+
+//================================================
+
+#define MAX_PART_MOVE_STAGES 4
+
+enum EMoveType
+{
+  eMTWave,
+  eMTWhirl,
+  eMTSqueeze,
+};
+
+struct SPartMoveStage
+{
+  EMoveType eMoveType;
+  SWaveForm WaveMove;
+};
+
+//================================================
+
+enum EParticleType
+{
+  ePTPoint,
+  ePTLine,
+  ePTPolySegs,
+  ePTPoly,
+  ePTBeam,
+};
+
+enum EParticleCollision
+{
+  ePCollision_None,
+  ePCollision_True,
+  ePCollision_Plane
+};
+
+struct SParticleInfo
+{
+  // TRANSFORMATION INFO
+  float   yaw, yawVar;        // YAW AND VARIATION
+  float   pitch, pitchVar;    // PITCH AND VARIATION
+  float   speed,speedVar;
+
+  int     life, lifeVar;              // LIFE COUNT AND VARIATION
+  CFColor    startColor, startColorVar;  // CURRENT COLOR OF PARTICLE
+  CFColor    endColor, endColorVar;      // CURRENT COLOR OF PARTICLE
+
+  // Physics
+  Vec3d      force;
+
+  EParticleType ePT;
+  int Flags;
+
+  // Move info
+  SPartMoveStage mMoves[MAX_PART_MOVE_STAGES];
+  int mNumMoves;
+
+  Vec3d moveDir;
+  Vec3d moveDirVar;
+
+  // Geometry info
+  float startSize, startSizeVar;
+  float endSize, endSizeVar;
+
+  float segmOffs;
+  int segmMax;
+
+  int StackSize;
+  float Squeeze;
+};
+
+struct SEmitter
+{
+  SParticleInfo pi;
+
+  Vec3d    startPos;           // XYZ POSITION
+  Vec3d    startPosVar;        // XYZ POSITION VARIATION
+
+  // Particle
+  SParticle *particle;               // NULL TERMINATED LINKED LIST
+  int       totalParticles[2];       // TOTAL EMITTED AT ANY TIME
+  int       particleCount[2];        // TOTAL EMITTED RIGHT NOW
+  int       emitsPerFrame, emitVar;  // EMITS PER FRAME AND VARIATION
+
+  EParticleCollision eCollisionType;
+  Vec3d PlaneAxis;
+  Vec3d PlaneOffs;
+
+  SParticleInfo Spark;
+  int NumSparks;
+
+  float Life;
+};
+
+///////////////////////////////////////////////////////////////////////////////
+
+/// Particle Definitions //////////////////////////////////////////////////////
+#define MAX_PARTICLES   4096    // MAXIMUM NUMBER OF PARTICLES
+///////////////////////////////////////////////////////////////////////////////
+
+#define FP_ANTIALIAS 0x1
+
+struct SParticleStat
+{
+  int NumSprays;
+  int NumRendSprays;
+  int NumParticles;
+  int NumVerts;
+  int NumIndices;
+};
+
+class CREParticleSpray : public CRendElement
+{
+public:
+  SEmitter mEmitter;
+  SParticle *mParticlePool[2];
+  SParticle *mParticlePntr[2];
+  int mFrame;
+
+private:
+/// Support Function Definitions //////////////////////////////////////////////
+  bool mfInitParticleSystem();
+  bool mfSetDefaultEmitter(SEmitter *emitter);
+  bool mfInitEmitter(SEmitter *emitter);
+
+  bool mfAddParticle(SEmitter *emitter, SParticleInfo *pi);
+  bool mfUpdateParticle(SParticle *particle,SEmitter *emitter);
+  void mfEmitSparks(SParticle *p, SEmitter *em);
+
+  bool mfUpdateEmitter(SEmitter *emitter);    // DRAW THE SYSTEM FOR A FRAME
+  SEmitter *mfGetEmitter(void) { return &mEmitter; }
+
+  // Parsing
+  void mfCompileParticleInfo(SShader *ef, SParticleInfo *pi, char *scr);
+  void mfCompileCollision(SShader *ef, SEmitter *em, char *scr, char *Collision);
+  bool mfCompileMove(SShader *ef, SPartMoveStage *pm, SParticleInfo *pi, char *scr);
+  bool mfCompileMoveTypeSqueeze(SShader *ef, SPartMoveStage *pm, char *scr);
+  bool mfCompileMoveTypeWhirl(SShader *ef, SPartMoveStage *pm, char *scr);
+  bool mfCompileMoveTypeWave(SShader *ef, SPartMoveStage *pm, char *scr);
+
+public:
+  CREParticleSpray()
+  {
+    mfSetType(eDATA_ParticleSpray);
+    mfUpdateFlags(FCEF_TRANSFORM | FCEF_NEEDFILLBUF);
+    mfInitEmitter(&mEmitter);
+  }
+  virtual ~CREParticleSpray();
+  //CREParticleSpray(CREParticleSpray *Orig);
+  CREParticleSpray& operator = (const CREParticleSpray& src);
+
+  // CRendElement interface
+  virtual void mfPrepare();
+  virtual bool mfCull(CCObject *obj);
+
+  virtual CRendElement *mfCopyConstruct(void)
+  {
+    //CREParticleSpray *ps = new CREParticleSpray;
+    //*ps = this;
+    return this;
+  }
+
+  virtual bool mfIsValidTime(SShader *ef, CCObject *obj, float curtime);
+  virtual bool mfCompile(SShader *ef, char *scr);
+
+  static SParticleStat mRS;
+  static void mfPrintStat();
+
+#ifdef DEBUGALLOC
+#undef new
+#endif
+  void* operator new( size_t Size )
+  {
+    void *ptr = malloc(Size);
+    memset(ptr, 0, Size);
+    return ptr;
+  }
+#ifdef DEBUGALLOC
+#define new DEBUG_CLIENTBLOCK
+#endif
+};
+
+
+#endif  // __RENDELEMENT_H__