/* bgfx.h - Don Yang (uguu.org)

   12/21/00
                                                                           */

#ifndef BGFX_H__
#define BGFX_H__


#define MAX_PARTICLE_COUNT    8192
#define MAX_PARTICLE_PARAM    4

#define FRACTAL_MIN_RULES     2
#define FRACTAL_MAX_RULES     4
#define FRACTAL_INIT_ITER     20
#define FRACTAL_DOT_COUNT     32
#define FRACTAL_ITER_COUNT    (MAX_PARTICLE_COUNT / FRACTAL_DOT_COUNT)

#define DUST_VECTOR_TIME      32
#define DUST_PARTICLE_COUNT   (MAX_PARTICLE_COUNT / 8)

#define SWARM_VECTOR_TIME     16
#define SWARM_PARTICLE_COUNT  (MAX_PARTICLE_COUNT / 8)
#define SWARM_WASP_VELOCITY   10
#define SWARM_BEE_VELOCITY    12

typedef struct
{
   int x1, y1, x2, y2, x3, y3;
   int dx1, dy1, dx2, dy2, dx3, dy3;
} ParticleParam;

void AnimateDust(void);
void AnimateFractal(void);
void AnimateSwarm(void);
void InitDust(void);
void InitFractal(void);
void InitSwarm(void);
void RenderParticle16(DWORD screen);
void RenderParticle16a(DWORD screen, int x, int y, int w, int h);
void RenderParticle16p(DWORD screen, int c, int r);
void RenderParticle24(DWORD screen);
void RenderParticle24a(DWORD screen, int x, int y, int w, int h);
void RenderParticle24p(DWORD screen, int c, int r);
void RenderParticle32(DWORD screen);
void RenderParticle32a(DWORD screen, int x, int y, int w, int h);
void RenderParticle32p(DWORD screen, int c, int r);
void WRenderParticle15(DWORD screen);
void WRenderParticle15a(DWORD screen, int x, int y, int w, int h);
void WRenderParticle15p(DWORD screen, int c, int r);
void WRenderParticle16(DWORD screen);
void WRenderParticle16a(DWORD screen, int x, int y, int w, int h);
void WRenderParticle16p(DWORD screen, int c, int r);
void WRenderParticle24(DWORD screen);
void WRenderParticle24a(DWORD screen, int x, int y, int w, int h);
void WRenderParticle24p(DWORD screen, int c, int r);
void WRenderParticle32(DWORD screen);
void WRenderParticle32a(DWORD screen, int x, int y, int w, int h);
void WRenderParticle32p(DWORD screen, int c, int r);


#endif