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-rw-r--r--modules/sparkler/burst.c111
1 files changed, 0 insertions, 111 deletions
diff --git a/modules/sparkler/burst.c b/modules/sparkler/burst.c
deleted file mode 100644
index 828ca02..0000000
--- a/modules/sparkler/burst.c
+++ /dev/null
@@ -1,111 +0,0 @@
-#include <stdlib.h>
-
-#include "bsp.h"
-#include "container.h"
-#include "particle.h"
-#include "particles.h"
-
-
-/* a "burst" (shockwave) particle type */
-/* this doesn't draw anything, it just pushes neighbors away in an increasing radius */
-
-#define BURST_FORCE 0.01f
-#define BURST_MAX_LIFETIME 8
-
-typedef struct _burst_ctxt_t {
- int longevity;
- int lifetime;
-} burst_ctxt_t;
-
-
-static int burst_init(particles_t *particles, particle_t *p)
-{
- burst_ctxt_t *ctxt = p->ctxt;
-
- ctxt->longevity = ctxt->lifetime = BURST_MAX_LIFETIME;
- p->props->velocity = 0; /* burst should be stationary */
- p->props->mass = 0; /* no mass prevents gravity's effects */
-
- return 1;
-}
-
-
-static inline void thrust_part(particle_t *burst, particle_t *victim, float distance_sq)
-{
- v3f_t direction = v3f_sub(&victim->props->position, &burst->props->position);
-
- /* TODO: normalize is expensive, see about removing these. */
- direction = v3f_normalize(&direction);
- victim->props->direction = v3f_add(&victim->props->direction, &direction);
- victim->props->direction = v3f_normalize(&victim->props->direction);
-
- victim->props->velocity += BURST_FORCE;
-}
-
-
-typedef struct burst_sphere_t {
- particle_t *center;
- float radius_min;
- float radius_max;
-} burst_sphere_t;
-
-
-static void burst_cb(bsp_t *bsp, list_head_t *occupants, void *_s)
-{
- burst_sphere_t *s = _s;
- bsp_occupant_t *o;
- float rmin_sq = s->radius_min * s->radius_min;
- float rmax_sq = s->radius_max * s->radius_max;
-
- /* XXX: to avoid having a callback per-particle, bsp_occupant_t was
- * moved to the public particle, and the particle-specific
- * implementations directly perform bsp-accelerated searches. Another
- * wart caused by this is particles_bsp().
- */
- list_for_each_entry(o, occupants, occupants) {
- particle_t *p = container_of(o, particle_t, occupant);
- float d_sq;
-
- if (p == s->center) {
- /* leave ourselves alone */
- continue;
- }
-
- d_sq = v3f_distance_sq(&s->center->props->position, &p->props->position);
-
- if (d_sq > rmin_sq && d_sq < rmax_sq) {
- /* displace the part relative to the burst origin */
- thrust_part(s->center, p, d_sq);
- }
-
- }
-}
-
-
-static particle_status_t burst_sim(particles_t *particles, particle_t *p)
-{
- burst_ctxt_t *ctxt = p->ctxt;
- bsp_t *bsp = particles_bsp(particles); /* XXX see note above about bsp_occupant_t */
- burst_sphere_t s;
-
- if (!ctxt->longevity || (ctxt->longevity--) <= 0) {
- return PARTICLE_DEAD;
- }
-
- /* affect neighbors for the shock-wave */
- s.radius_min = (1.0f - ((float)ctxt->longevity / ctxt->lifetime)) * 0.075f;
- s.radius_max = s.radius_min + .01f;
- s.center = p;
- bsp_search_sphere(bsp, &p->props->position, s.radius_min, s.radius_max, burst_cb, &s);
-
- return PARTICLE_ALIVE;
-}
-
-
-particle_ops_t burst_ops = {
- .context_size = sizeof(burst_ctxt_t),
- .sim = burst_sim,
- .init = burst_init,
- .draw = NULL,
- .cleanup = NULL,
- };
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