From b38db01c835fa222aa11ace3a2d84095fe2c3f83 Mon Sep 17 00:00:00 2001 From: Vito Caputo Date: Wed, 20 Jul 2022 21:06:31 -0700 Subject: 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. --- src/modules/sparkler/spark.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'src/modules/sparkler/spark.c') diff --git a/src/modules/sparkler/spark.c b/src/modules/sparkler/spark.c index 8627baa..3e45cc8 100644 --- a/src/modules/sparkler/spark.c +++ b/src/modules/sparkler/spark.c @@ -26,8 +26,8 @@ static int spark_init(particles_t *particles, const particles_conf_t *conf, part p->props->drag = 20.0; p->props->mass = 0.1; p->props->virtual = 0; - ctxt->decay_rate = rand_within_range(SPARK_MIN_DECAY_RATE, SPARK_MAX_DECAY_RATE); - ctxt->lifetime = ctxt->longevity = rand_within_range(SPARK_MIN_LIFETIME, SPARK_MAX_LIFETIME); + ctxt->decay_rate = rand_within_range(conf->seedp, SPARK_MIN_DECAY_RATE, SPARK_MAX_DECAY_RATE); + ctxt->lifetime = ctxt->longevity = rand_within_range(conf->seedp, SPARK_MIN_LIFETIME, SPARK_MAX_LIFETIME); return 1; } -- cgit v1.2.3