grsmoke.h

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#ifndef _GRSMOKE_H_
#define _GRSMOKE_H_

#define SMOKE_INIT_SIZE 0.2f
#define MAX_SMOKE_LIFE  120
#define MAX_SMOKE_NUMBER  300
#define DELTAT 0.1f
#define VZ_INIT 0.05f
#define VY_INIT 0.1f
#define VX_INIT 0.1f
#define V_EXPANSION 0.4f
#define SMOKE_TYPE_TIRE   1
#define SMOKE_TYPE_ENGINE 2

class ssgVtxTableSmoke : public ssgVtxTable
{
protected:
  virtual void copy_from ( ssgVtxTableSmoke *src, int clone_flags ) ;
  
public:
  double max_life;
  double step0_max_life;
  double step1_max_life;
  double step2_max_life;
  double cur_life;
  tdble vvx, vvy,vvz;
  sgVec3 cur_col;
  tdble vexp;
  int smokeType;
  int smokeTypeStep;
  double dt;
  double lastTime;
  float sizex;
  float sizey;
  float sizez;
  float init_alpha;
  int stype;
  virtual ssgBase *clone ( int clone_flags = 0 ) ;
  ssgVtxTableSmoke () ;
  ssgVtxTableSmoke (ssgVertexArray  *shd_vtx , float initsize, int type);

  void draw_geometry();
  virtual void drawHighlight ( sgVec4 colour ){ssgVtxTable::drawHighlight(colour);} 
  virtual void drawHighlight ( sgVec4 colour, int i ){ssgVtxTable::drawHighlight(colour,i);} 

  virtual void pick ( int baseName )  { ssgVtxTable::pick(baseName);}
  virtual void transform ( const sgMat4 m )  { ssgVtxTable::transform(m);}

  virtual void setVertices  ( ssgVertexArray   *vl ) {  ssgVtxTable::setVertices(vl);}
  virtual void setNormals   ( ssgNormalArray   *nl ) {  ssgVtxTable::setNormals(nl);}
  virtual void setTexCoords ( ssgTexCoordArray *tl ) {  ssgVtxTable::setTexCoords(tl);}
  virtual void setColours   ( ssgColourArray   *cl ) {  ssgVtxTable::setColours(cl);}

  int getNumVertices  () { return vertices  -> getNum () ; }
  int getNumNormals   () { return normals   -> getNum () ; }
  int getNumColours   () { return colours   -> getNum () ; }
  int getNumTexCoords () { return texcoords -> getNum () ; }

  int getNumTriangles ()  { return ssgVtxTable::getNumTriangles();}
  void getTriangle ( int n, short *v1, short *v2, short *v3 )  { ssgVtxTable::getTriangle(n,v1,v2,v3);}
  int  getNumLines ()  {return ssgVtxTable::getNumLines();}
  void getLine ( int n, short *v1, short *v2 )  { ssgVtxTable::getLine(n,v1,v2);}


  virtual ~ssgVtxTableSmoke (void);

  virtual const char *getTypeName(void)  { return ssgVtxTable::getTypeName();}

  virtual int load ( FILE *fd )  {return  ssgVtxTable::load(fd);}
  virtual int save ( FILE *fd )  {return  ssgVtxTable::save(fd);}
};

typedef struct tgrSmoke_st
{
  ssgVtxTableSmoke * smoke;
  tgrSmoke_st * next ;
}tgrSmoke;

typedef struct 
{
  tgrSmoke * smokeList;
  int number;
}tgrSmokeManager;


extern void grInitSmoke(int index);
extern void grAddSmoke(tCarElt *car, double t);
extern void grUpdateSmoke(double t);
extern void grShutdownSmoke ();

extern int grSmokeMaxNumber;
extern double grSmokeDeltaT;
extern double grSmokeLife;


#endif /* _GRSMOKE_H_*/