rulegen:: fixed UB in get_corner while doing floorshapes

2021-07-31 14:37:53 +02:00 · 2021-07-31 14:37:53 +02:00 · e8a8a75620
parent c8b4d6b159
commit e8a8a75620
1 changed files with 1 additions and 0 deletions
--- a/rulegen.cpp
+++ b/rulegen.cpp
@ -1462,6 +1462,7 @@ struct hrmap_rulegen : hrmap {
  hyperpoint get_corner(cell *c, int cid, ld cf) {
    if(c->master->fieldval == -1) {
      auto& sh = arb::current_or_slided().shapes[c->master->zebraval];
+      cid = gmod(cid, sh.size());
      return normalize(C0 + (sh.vertices[cid] - C0) * 3 / cf);
      }
    int s = c->master->fieldval;