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| author | Vito Caputo <vcaputo@pengaru.com> | 2022-05-21 23:27:02 -0700 |
|---|---|---|
| committer | Vito Caputo <vcaputo@pengaru.com> | 2022-05-21 23:27:02 -0700 |
| commit | c1fed8c508dd89c86de7dd647de0d014c441344e (patch) | |
| tree | fac4d327c18fe5a2a205a2f4b4ad7f8287ec3536 /src/modules/meta2d/meta2d.c | |
| parent | e21cdb67718a5d203372fd0c425e8be3e1d273f3 (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/meta2d.c')
| -rw-r--r-- | src/modules/meta2d/meta2d.c | 3 |
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}); } |