add rand-{path,erand48}, minor fixes

1 files changed, 4 insertions, 2 deletions

diff --git a/main.c b/main.c
index 8e94e87..5629cd5 100644
--- a/main.c
+++ b/main.c
@@ -264,7 +264,7 @@ save_on_best(
   UNUSED(cb_data);
 
   // convert rank to channel brightness
-  const uint8_t ch = 0x66 + (0xff - 0x66) * (1.0 * rank) / (MAX_BEST - 1);
+  const uint8_t ch = 0x33 + (0xff - 0x33) * (1.0 * rank + 1) / (MAX_BEST);
   const uint32_t color = (ch & 0xff) << 16;
   // const uint32_t color = 0xff0000;
   // D("rank = %zu, score = %0.3f, size = %zu, color = %06x", rank, score, set->num_rows, color);
@@ -324,9 +324,11 @@ int main(int argc, char *argv[]) {
   // init context
   ctx_t ctx;
   memset(&ctx, 0, sizeof(ctx_t));
-  km_rand_init_libc(&(ctx.rs));
   ctx.init_type = km_init_get_type(init_type_name);
 
+  // init ctx rng
+  km_rand_init_erand48(&(ctx.rs), rand());
+
   // init data set
   km_set_t set;
   if (!km_load_path(data_path, &LOAD_CBS, &set)) {