nuclear@3: #include <stdlib.h>
nuclear@3: #include "rndval.h"
nuclear@3: 
nuclear@3: int psys_init_anm_rnd(struct psys_anm_rnd *r)
nuclear@3: {
nuclear@3: 	if(anm_init_track(&r->value) == -1) {
nuclear@3: 		return -1;
nuclear@3: 	}
nuclear@3: 	if(anm_init_track(&r->range) == -1) {
nuclear@3: 		anm_destroy_track(&r->value);
nuclear@3: 		return -1;
nuclear@3: 	}
nuclear@3: 	return 0;
nuclear@3: }
nuclear@3: 
nuclear@3: void psys_destroy_anm_rnd(struct psys_anm_rnd *r)
nuclear@3: {
nuclear@3: 	anm_destroy_track(&r->value);
nuclear@3: 	anm_destroy_track(&r->range);
nuclear@3: }
nuclear@3: 
nuclear@3: int psys_init_anm_rnd3(struct psys_anm_rnd3 *r)
nuclear@3: {
nuclear@3: 	if(anm_init_track3(&r->value) == -1) {
nuclear@3: 		return -1;
nuclear@3: 	}
nuclear@3: 	if(anm_init_track3(&r->range) == -1) {
nuclear@3: 		anm_destroy_track3(&r->value);
nuclear@3: 		return -1;
nuclear@3: 	}
nuclear@3: 	return 0;
nuclear@3: }
nuclear@3: 
nuclear@3: void psys_destroy_anm_rnd3(struct psys_anm_rnd3 *r)
nuclear@3: {
nuclear@3: 	anm_destroy_track3(&r->value);
nuclear@3: 	anm_destroy_track3(&r->range);
nuclear@3: }
nuclear@3: 
nuclear@3: 
nuclear@3: float psys_eval_rnd(struct psys_rnd *r)
nuclear@3: {
nuclear@3: 	return r->value + r->range * (float)rand() / (float)RAND_MAX - 0.5 * r->range;
nuclear@3: }
nuclear@3: 
nuclear@3: vec3_t psys_eval_rnd3(struct psys_rnd3 *r)
nuclear@3: {
nuclear@3: 	vec3_t res;
nuclear@3: 	res.x = r->value.x + r->range.x * (float)rand() / (float)RAND_MAX - 0.5 * r->range.x;
nuclear@3: 	res.y = r->value.y + r->range.y * (float)rand() / (float)RAND_MAX - 0.5 * r->range.y;
nuclear@3: 	res.z = r->value.z + r->range.z * (float)rand() / (float)RAND_MAX - 0.5 * r->range.z;
nuclear@3: 	return res;
nuclear@3: }
nuclear@3: 
nuclear@3: 
nuclear@3: float psys_eval_anm_rnd(struct psys_anm_rnd *r, anm_time_t tm)
nuclear@3: {
nuclear@3: 	if(r->cur_tm != tm) {
nuclear@3: 		r->cur.value = anm_get_value(&r->value, tm);
nuclear@3: 		r->cur.range = anm_get_value(&r->range, tm);
nuclear@3: 		r->cur_tm = tm;
nuclear@3: 	}
nuclear@3: 	return psys_eval_rnd(&r->cur);
nuclear@3: }
nuclear@3: 
nuclear@3: vec3_t psys_eval_anm_rnd3(struct psys_anm_rnd3 *r, anm_time_t tm)
nuclear@3: {
nuclear@3: 	if(r->cur_tm != tm) {
nuclear@3: 		r->cur.value = anm_get_value3(&r->value, tm);
nuclear@3: 		r->cur.range = anm_get_value3(&r->range, tm);
nuclear@3: 		r->cur_tm = tm;
nuclear@3: 	}
nuclear@3: 	return psys_eval_rnd3(&r->cur);
nuclear@3: }