summaryrefslogtreecommitdiff
path: root/modules/sparkler/rocket.c
diff options
context:
space:
mode:
Diffstat (limited to 'modules/sparkler/rocket.c')
-rw-r--r--modules/sparkler/rocket.c144
1 files changed, 0 insertions, 144 deletions
diff --git a/modules/sparkler/rocket.c b/modules/sparkler/rocket.c
deleted file mode 100644
index 6b9dc5e..0000000
--- a/modules/sparkler/rocket.c
+++ /dev/null
@@ -1,144 +0,0 @@
-#include <stdlib.h>
-
-#include "draw.h"
-#include "particle.h"
-#include "particles.h"
-
-/* a "rocket" particle type */
-#define ROCKET_MAX_DECAY_RATE 20
-#define ROCKET_MIN_DECAY_RATE 2
-#define ROCKET_MAX_LIFETIME 500
-#define ROCKET_MIN_LIFETIME 300
-#define ROCKETS_MAX 20
-#define ROCKETS_XPLODE_MIN_SIZE 2000
-#define ROCKETS_XPLODE_MAX_SIZE 8000
-
-extern particle_ops_t burst_ops;
-extern particle_ops_t spark_ops;
-extern particle_ops_t xplode_ops;
-
-static unsigned rockets_cnt;
-
-typedef struct rocket_ctxt_t {
- int decay_rate;
- int longevity;
- v3f_t wander;
- float last_velocity; /* cache velocity to sense violent accelerations and explode when they happen */
-} rocket_ctxt_t;
-
-
-static int rocket_init(particles_t *particles, particle_t *p)
-{
- rocket_ctxt_t *ctxt = p->ctxt;
-
- if (rockets_cnt >= ROCKETS_MAX) {
- return 0;
- }
- rockets_cnt++;
-
- ctxt->decay_rate = rand_within_range(ROCKET_MIN_DECAY_RATE, ROCKET_MAX_DECAY_RATE);
- ctxt->longevity = rand_within_range(ROCKET_MIN_LIFETIME, ROCKET_MAX_LIFETIME);
-
- ctxt->wander.x = (float)(rand_within_range(0, 628) - 314) / 10000.0f;
- ctxt->wander.y = (float)(rand_within_range(0, 628) - 314) / 10000.0f;
- ctxt->wander.z = (float)(rand_within_range(0, 628) - 314) / 10000.0f;
- ctxt->wander = v3f_normalize(&ctxt->wander);
-
- ctxt->last_velocity = p->props->velocity;
- p->props->drag = 0.4;
- p->props->mass = 0.8;
-
- return 1;
-}
-
-
-static particle_status_t rocket_sim(particles_t *particles, particle_t *p)
-{
- rocket_ctxt_t *ctxt = p->ctxt;
- int i, n_sparks;
-
- if (!ctxt->longevity ||
- (ctxt->longevity -= ctxt->decay_rate) <= 0 ||
- p->props->velocity - ctxt->last_velocity > p->props->velocity * .05) { /* explode if accelerated too hard (burst) */
- int n_xplode;
- /* on death we explode */
-
- ctxt->longevity = 0;
-
- /* add a burst shockwave particle at our location
- * TODO: need way to supply particle-type-specific parameters at spawn (burst size should derive from n_xplode)
- */
- particles_spawn_particle(particles, p, NULL, &burst_ops);
-
- /* add a bunch of new explosion particles */
- /* TODO: also particle-type-specific parameters, colors! rocket bursts should be able to vary the color. */
- n_xplode = rand_within_range(ROCKETS_XPLODE_MIN_SIZE, ROCKETS_XPLODE_MAX_SIZE);
- for (i = 0; i < n_xplode; i++) {
- particle_props_t props = *p->props;
- particle_ops_t *ops = &xplode_ops;
-
- props.direction.x = ((float)(rand_within_range(0, 314159 * 2) - 314159) / 100000.0);
- props.direction.y = ((float)(rand_within_range(0, 314159 * 2) - 314159) / 100000.0);
- props.direction.z = ((float)(rand_within_range(0, 314159 * 2) - 314159) / 100000.0);
- props.direction = v3f_normalize(&props.direction);
-
- //props->velocity = ((float)rand_within_range(100, 200) / 100000.0);
- props.velocity = ((float)rand_within_range(100, 300) / 100000.0);
- particles_spawn_particle(particles, p, &props, ops);
- }
- return PARTICLE_DEAD;
- }
-
-#if 1
- /* FIXME: this isn't behaving as intended */
- p->props->direction = v3f_add(&p->props->direction, &ctxt->wander);
- p->props->direction = v3f_normalize(&p->props->direction);
-#endif
- p->props->velocity += .00003;
-
- /* spray some sparks behind the rocket */
- n_sparks = rand_within_range(10, 40);
- for (i = 0; i < n_sparks; i++) {
- particle_props_t props = *p->props;
-
- props.direction = v3f_negate(&props.direction);
-
- props.direction.x += (float)(rand_within_range(0, 40) - 20) / 100.0;
- props.direction.y += (float)(rand_within_range(0, 40) - 20) / 100.0;
- props.direction.z += (float)(rand_within_range(0, 40) - 20) / 100.0;
- props.direction = v3f_normalize(&props.direction);
-
- props.velocity = (float)rand_within_range(10, 50) / 100000.0;
- particles_spawn_particle(particles, p, &props, &spark_ops);
- }
-
- ctxt->last_velocity = p->props->velocity;
-
- return PARTICLE_ALIVE;
-}
-
-
-static void rocket_draw(particles_t *particles, particle_t *p, int x, int y, fb_fragment_t *f)
-{
- rocket_ctxt_t *ctxt = p->ctxt;
-
- if (!draw_pixel(f, x, y, 0xff0000)) {
- /* kill off parts that wander off screen */
- ctxt->longevity = 0;
- }
-}
-
-
-static void rocket_cleanup(particles_t *particles, particle_t *p)
-{
- rockets_cnt--;
-}
-
-
-particle_ops_t rocket_ops = {
- .context_size = sizeof(rocket_ctxt_t),
- .sim = rocket_sim,
- .init = rocket_init,
- .draw = rocket_draw,
- .cleanup = rocket_cleanup,
- };
© All Rights Reserved