dungeon_crawler

annotate prototype/psys/psys.h @ 67:2560a7ab0243

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internalized libanim, libimago2, and libpsys
author John Tsiombikas <nuclear@member.fsf.org>
date Sun, 07 Oct 2012 02:04:00 +0300
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nuclear@67 1 #ifndef LIBPSYS_H_
nuclear@67 2 #define LIBPSYS_H_
nuclear@67 3
nuclear@67 4 #include <vmath/vmath.h>
nuclear@67 5 #include <anim/anim.h>
nuclear@67 6 #include "rndval.h"
nuclear@67 7 #include "pattr.h"
nuclear@67 8
nuclear@67 9 struct psys_particle;
nuclear@67 10 struct psys_emitter;
nuclear@67 11
nuclear@67 12 typedef int (*psys_spawn_func_t)(struct psys_emitter*, struct psys_particle*, void*);
nuclear@67 13 typedef void (*psys_update_func_t)(struct psys_emitter*, struct psys_particle*, float, float, void*);
nuclear@67 14
nuclear@67 15 typedef void (*psys_draw_func_t)(struct psys_emitter*, struct psys_particle*, void*);
nuclear@67 16 typedef void (*psys_draw_start_func_t)(struct psys_emitter*, void*);
nuclear@67 17 typedef void (*psys_draw_end_func_t)(struct psys_emitter*, void*);
nuclear@67 18
nuclear@67 19
nuclear@67 20 struct psys_plane {
nuclear@67 21 plane_t p;
nuclear@67 22 float elasticity;
nuclear@67 23 struct psys_plane *next;
nuclear@67 24 };
nuclear@67 25
nuclear@67 26
nuclear@67 27 struct psys_emitter {
nuclear@67 28 struct anm_node prs;
nuclear@67 29 vec3_t cur_pos;
nuclear@67 30
nuclear@67 31 struct psys_attributes attr;
nuclear@67 32
nuclear@67 33 /* list of active particles */
nuclear@67 34 struct psys_particle *plist;
nuclear@67 35 int pcount; /* number of active particles */
nuclear@67 36
nuclear@67 37 /* list of collision planes */
nuclear@67 38 struct psys_plane *planes;
nuclear@67 39
nuclear@67 40 /* custom spawn closure */
nuclear@67 41 void *spawn_cls;
nuclear@67 42 psys_spawn_func_t spawn;
nuclear@67 43
nuclear@67 44 /* custom particle update closure */
nuclear@67 45 void *upd_cls;
nuclear@67 46 psys_update_func_t update;
nuclear@67 47
nuclear@67 48 /* custom draw closure */
nuclear@67 49 void *draw_cls;
nuclear@67 50 psys_draw_func_t draw;
nuclear@67 51 psys_draw_start_func_t draw_start;
nuclear@67 52 psys_draw_end_func_t draw_end;
nuclear@67 53
nuclear@67 54 float spawn_acc; /* partial spawn accumulator */
nuclear@67 55 float last_update; /* last update time (to calc dt) */
nuclear@67 56 };
nuclear@67 57
nuclear@67 58
nuclear@67 59 struct psys_particle {
nuclear@67 60 vec3_t pos, vel;
nuclear@67 61 float life, max_life;
nuclear@67 62 float base_size;
nuclear@67 63
nuclear@67 64 struct psys_particle_attributes *pattr;
nuclear@67 65
nuclear@67 66 /* current particle attr values calculated during update */
nuclear@67 67 vec3_t color;
nuclear@67 68 float alpha, size;
nuclear@67 69
nuclear@67 70 struct psys_particle *next;
nuclear@67 71 };
nuclear@67 72
nuclear@67 73 #ifdef __cplusplus
nuclear@67 74 extern "C" {
nuclear@67 75 #endif
nuclear@67 76
nuclear@67 77 struct psys_emitter *psys_create(void);
nuclear@67 78 void psys_free(struct psys_emitter *em);
nuclear@67 79
nuclear@67 80 int psys_init(struct psys_emitter *em);
nuclear@67 81 void psys_destroy(struct psys_emitter *em);
nuclear@67 82
nuclear@67 83 /* set properties */
nuclear@67 84 void psys_set_pos(struct psys_emitter *em, vec3_t pos, float tm);
nuclear@67 85 void psys_set_rot(struct psys_emitter *em, quat_t rot, float tm);
nuclear@67 86 void psys_set_pivot(struct psys_emitter *em, vec3_t pivot);
nuclear@67 87
nuclear@67 88 vec3_t psys_get_pos(struct psys_emitter *em, float tm);
nuclear@67 89 quat_t psys_get_rot(struct psys_emitter *em, float tm);
nuclear@67 90 vec3_t psys_get_pivot(struct psys_emitter *em);
nuclear@67 91
nuclear@67 92 void psys_clear_collision_planes(struct psys_emitter *em);
nuclear@67 93 int psys_add_collision_plane(struct psys_emitter *em, plane_t plane, float elast);
nuclear@67 94
nuclear@67 95 void psys_add_particle(struct psys_emitter *em, struct psys_particle *p);
nuclear@67 96
nuclear@67 97 void psys_spawn_func(struct psys_emitter *em, psys_spawn_func_t func, void *cls);
nuclear@67 98 void psys_update_func(struct psys_emitter *em, psys_update_func_t func, void *cls);
nuclear@67 99 void psys_draw_func(struct psys_emitter *em, psys_draw_func_t draw,
nuclear@67 100 psys_draw_start_func_t start, psys_draw_end_func_t end, void *cls);
nuclear@67 101
nuclear@67 102 /* update and render */
nuclear@67 103
nuclear@67 104 void psys_update(struct psys_emitter *em, float tm);
nuclear@67 105 void psys_draw(struct psys_emitter *em);
nuclear@67 106
nuclear@67 107 #ifdef __cplusplus
nuclear@67 108 }
nuclear@67 109 #endif
nuclear@67 110
nuclear@67 111 #endif /* LIBPSYS_H_ */