particle.h

   1 #pragma once
   2 #include "skaterift.h"
   3
   4 typedef struct particle_system particle_system;
   5 typedef struct particle particle;
   6 typedef struct particle_vert particle_vert;
   7
   8 struct particle_system {
   9    struct particle {
  10       v3f co, v;
  11       f32 life;
  12       u32 colour;
  13    }
  14    *array;
  15
  16 #pragma pack(push,1)
  17    struct particle_vert {
  18       v3f co;
  19       u32 colour;
  20    }
  21    *vertices;
  22 #pragma pack(pop)
  23
  24    u32 alive, max;
  25    GLuint vao, vbo, ebo;
  26
  27    /* render settings */
  28    f32 scale, velocity_scale, width;
  29 }
  30 extern particles_grind, particles_env;
  31
  32 void particle_alloc( particle_system *sys, u32 max );
  33 void particle_system_update( particle_system *sys, f32 dt );
  34 void particle_system_debug( particle_system *sys );
  35 void particle_system_prerender( particle_system *sys );
  36 void particle_system_render( particle_system *sys, vg_camera *cam );
  37
  38 void particle_spawn( particle_system *sys,
  39                      v3f co, v3f v, f32 lifetime, u32 colour );
  40 void particle_spawn_cone( particle_system *sys,
  41                           v3f co, v3f dir, f32 angle, f32 speed,
  42                           f32 lifetime, u32 colour );