1 #ifndef PSYS_IMPL_H_

2 #define PSYS_IMPL_H_

3

4 #include <anim/anim.h>

5 #include "psys.h"

6

7 struct v3track {

8 struct anm_track x, y, z;

9 };

10

11 struct col_plane {

12 plane_t p;

13 float elasticity;

14 struct col_plane *next;

15 };

16

17 struct psys_particle;

18

19 struct psys_emitter {

20 float last_update;

21

22 struct anm_node prs;

23

24 struct anm_track rate;

25 struct anm_track life;

26 struct v3track dir;

27 struct v3track grav;

28

29 float drag; /* I don't think this needs to animate */

30

31 /* list of active particles */

32 struct psys_particle *plist;

33

34 /* list of collision planes */

35 struct col_plane *planes;

36

37 /* custom spawn closure */

38 void *spawn_cls;

39 psys_spawn_func_t spawn;

40

41 /* custom particle update closure */

42 void *upd_cls;

43 psys_update_func_t update;

44

45 /* custom draw closure */

46 void *draw_cls;

47 psys_draw_func_t draw;

48 psys_draw_start_func_t draw_start;

49 psys_draw_end_func_t draw_end;

50

51 /* calculated on update */

52 vec3_t cur_pos;

53 qut_t cur_rot;

54 float cur_rate, cur_life;

55 vec3_t cur_dir;

56 };

57

58

59 struct psys_particle {

60 vec3_t pos, vel;

61 float life, size, mass;

62 };

63

64 void psys_gl_draw_start(struct psys_emitter *em, void *cls);

65 void psys_gl_draw(struct psys_emitter *em, struct psys_particle *p, void *cls);

66 void psys_gl_draw_end(struct psys_emitter *em, void *cls);

67

68 #endif /* PSYS_IMPL_H_ */