this is also better

1 files changed, 4 insertions, 7 deletions

diff --git a/src/phys/world.odin b/src/phys/world.odin
index 3dbd052..0f1451c 100644
--- a/src/phys/world.odin
+++ b/src/phys/world.odin
@@ -84,13 +84,10 @@ _remove_from_bins :: proc(b: Body) {
   assert(len(bin) > 0)
   assert(bin[b.bin_idx] == b.handle)
 
-  last := pop(bin)
-  if last != b.handle {
-    // log.debug(last, b.handle)
-    bin[b.bin_idx] = last
-
-    last_body := _get_body(last)
-    last_body.bin_idx = b.bin_idx
+  unordered_remove(bin, b.bin_idx)
+  if int(b.bin_idx) != len(bin) {
+    swapped_body := _get_body(bin[b.bin_idx])
+    swapped_body.bin_idx = b.bin_idx
   }
 }