particle.h

   1 #ifndef PARTICLE_H
   2 #define PARTICLE_H
   3
   4 #include "skaterift.h"
   5
   6 typedef struct particle_system particle_system;
   7 typedef struct particle particle;
   8 typedef struct particle_vert particle_vert;
   9
  10 struct particle_system {
  11    struct particle {
  12       v3f co, v;
  13       f32 life;
  14       u32 colour;
  15    }
  16    *array;
  17
  18 #pragma pack(push,1)
  19    struct particle_vert {
  20       v3f co;
  21       u32 colour;
  22    }
  23    *vertices;
  24 #pragma pack(pop)
  25
  26    u32 alive, max;
  27    GLuint vao, vbo, ebo;
  28
  29    /* render settings */
  30    f32 scale, velocity_scale, width;
  31 }
  32 static particles_grind = {
  33    .scale = 0.02f,
  34    .velocity_scale = 0.001f,
  35    .width = 0.0125f
  36 },
  37 particles_env = {
  38    .scale = 0.04f,
  39    .velocity_scale = 0.001f,
  40    .width = 0.25f
  41 };
  42
  43 static void particle_alloc( particle_system *sys, u32 max );
  44 static void particle_system_update( particle_system *sys, f32 dt );
  45 static void particle_system_debug( particle_system *sys );
  46 static void particle_system_prerender( particle_system *sys );
  47 static void particle_system_render( particle_system *sys, camera *cam );
  48
  49 static void particle_spawn( particle_system *sys,
  50                             v3f co, v3f v, f32 lifetime, u32 colour );
  51 static void particle_spawn_cone( particle_system *sys,
  52                                  v3f co, v3f dir, f32 angle, f32 speed,
  53                                  f32 lifetime, u32 colour );
  54
  55 #include "shaders/particle.h"
  56
  57 #endif /* PARTICLE_H */