diff options
| author | Vito Caputo <vcaputo@pengaru.com> | 2022-07-20 21:06:31 -0700 |
|---|---|---|
| committer | Vito Caputo <vcaputo@pengaru.com> | 2022-07-20 21:06:31 -0700 |
| commit | b38db01c835fa222aa11ace3a2d84095fe2c3f83 (patch) | |
| tree | 18464eac0c46a1e8a82f96faadc370066d8bf61c /src/modules/sparkler/xplode.c | |
| parent | b68ec04f86f83ba3d7926ffafc1d8a6456e72c05 (diff) | |
modules/sparkler: s/rand/rand_r/ and wire up seed
This is a little contorted but not too bad. The input to
particles_new() is just a const conf struct, so instead of
passing in the seed value for particles_t to contain, a pointer
to where the seed lives is passed in via the conf. This requires
the caller to persist a seed somewhere outside the particles
instance, but at least in rototiller we already have that
conveniently in til_module_context_t.
Diffstat (limited to 'src/modules/sparkler/xplode.c')
| -rw-r--r-- | src/modules/sparkler/xplode.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/src/modules/sparkler/xplode.c b/src/modules/sparkler/xplode.c index 31f56fd..1534369 100644 --- a/src/modules/sparkler/xplode.c +++ b/src/modules/sparkler/xplode.c @@ -26,8 +26,8 @@ static int xplode_init(particles_t *particles, const particles_conf_t *conf, par { xplode_ctxt_t *ctxt = p->ctxt; - ctxt->decay_rate = rand_within_range(XPLODE_MIN_DECAY_RATE, XPLODE_MAX_DECAY_RATE); - ctxt->lifetime = ctxt->longevity = rand_within_range(XPLODE_MIN_LIFETIME, XPLODE_MAX_LIFETIME); + ctxt->decay_rate = rand_within_range(conf->seedp, XPLODE_MIN_DECAY_RATE, XPLODE_MAX_DECAY_RATE); + ctxt->lifetime = ctxt->longevity = rand_within_range(conf->seedp, XPLODE_MIN_LIFETIME, XPLODE_MAX_LIFETIME); p->props->drag = 10.9; p->props->mass = 0.3; @@ -50,7 +50,7 @@ static particle_status_t xplode_sim(particles_t *particles, const particles_conf if (!(ctxt->lifetime % 30)) { particle_props_t props = *p->props; - props.velocity = (float)rand_within_range(10, 50) / 10000.0; + props.velocity = (float)rand_within_range(conf->seedp, 10, 50) / 10000.0; particles_spawn_particle(particles, p, &props, &xplode_ops); } |