1 #ifndef PATTR_H_

2 #define PATTR_H_

3

4 #include "pstrack.h"

5 #include "rndval.h"

6

7 struct psys_attributes {

8 unsigned int tex; /* OpenGL texture to use for the billboard */

9

10 struct psys_track3 spawn_range; /* radius of emmiter */

11 struct psys_track rate; /* spawn rate particles per sec */

12 struct psys_anm_rnd life; /* particle life in seconds */

13 struct psys_anm_rnd size; /* base particle size */

14 struct psys_anm_rnd3 dir; /* particle shoot direction */

15

16 struct psys_track3 grav; /* external force (usually gravity) */

17

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

19

20 /* limits */

21 int max_particles;

22 };

23

24 void psys_texture_loader(unsigned int (*load)(const char*, void*), void (*unload)(unsigned int, void*), void *cls);

25

26 int psys_init_attr(struct psys_attributes *attr);

27 void psys_destroy_attr(struct psys_attributes *attr);

28

29 void psys_eval_attr(struct psys_attributes *attr, anm_time_t tm);

30

31 int psys_load_attr(struct psys_attributes *attr, const char *fname);

32 int psys_load_attr_stream(struct psys_attributes *attr, FILE *fp);

33

34 int psys_save_attr(struct psys_attributes *attr, const char *fname);

35 int psys_save_attr_stream(struct psys_attributes *attr, FILE *fp);

36

37 #endif