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authorVito Caputo <vcaputo@pengaru.com>2022-05-21 23:27:02 -0700
committerVito Caputo <vcaputo@pengaru.com>2022-05-21 23:27:02 -0700
commitc1fed8c508dd89c86de7dd647de0d014c441344e (patch)
treefac4d327c18fe5a2a205a2f4b4ad7f8287ec3536 /src/modules/meta2d
parente21cdb67718a5d203372fd0c425e8be3e1d273f3 (diff)
modules/*: first stab at utilizing supplied seeds
This is a mostly mechanical change of using rand_r() in place of rand(), using the provided seed as the seed state. There's some outstanding rand()s outside of create_context() which should probably get switched over, with the seed being stowed in the context struct. I didn't bother going deeper on this at the moment in the interests of getting to sleep soon.
Diffstat (limited to 'src/modules/meta2d')
-rw-r--r--src/modules/meta2d/meta2d.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/modules/meta2d/meta2d.c b/src/modules/meta2d/meta2d.c
index 8b87804..d1063de 100644
--- a/src/modules/meta2d/meta2d.c
+++ b/src/modules/meta2d/meta2d.c
@@ -78,8 +78,9 @@ static void * meta2d_create_context(unsigned seed, unsigned ticks, unsigned n_cp
for (int i = 0; i < META2D_NUM_BALLS; i++) {
meta2d_ball_t *ball = &ctxt->balls[i];
+ /* TODO: add _r() variants of v[23]f_rand()? */
v2f_rand(&ball->position, &(v2f_t){-.7f, -.7f}, &(v2f_t){.7f, .7f});
- ball->radius = rand() / (float)RAND_MAX * .2f + .05f;
+ ball->radius = rand_r(&seed) / (float)RAND_MAX * .2f + .05f;
v3f_rand(&ball->color, &(v3f_t){0.f, 0.f, 0.f}, &(v3f_t){1.f, 1.f, 1.f});
}
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