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 unsigned int tex;

25

26 struct anm_track rate;

27 struct anm_track life;

28 struct v3track dir;

29 struct v3track grav;

30

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

32

33 /* list of active particles */

34 struct psys_particle *plist;

35

36 /* list of collision planes */

37 struct col_plane *planes;

38

39 /* custom spawn closure */

40 void *spawn_cls;

41 psys_spawn_func_t spawn;

42

43 /* custom particle update closure */

44 void *upd_cls;

45 psys_update_func_t update;

46

47 /* custom draw closure */

48 void *draw_cls;

49 psys_draw_func_t draw;

50 psys_draw_start_func_t draw_start;

51 psys_draw_end_func_t draw_end;

52

53 /* calculated on update */

54 vec3_t cur_pos;

55 quat_t cur_rot;

56 float cur_rate, cur_life;

57 vec3_t cur_dir;

58 vec3_t cur_grav;

59

60 /* partial spawn accumulator */

61 float spawn_acc;

62 };

63

64

65 struct psys_particle {

66 vec3_t pos, vel;

67 float life, size;

68

69 struct psys_particle *next;

70 };

71

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

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

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

75

76 #endif /* PSYS_IMPL_H_ */