1 files changed, 8 insertions, 4 deletions
diff --git a/src/sim/cell_manager/sim.rs b/src/sim/cell_manager/sim.rs
index ffa253b..6b3a0de 100644
--- a/src/sim/cell_manager/sim.rs
+++ b/src/sim/cell_manager/sim.rs
@@ -128,7 +128,7 @@ fn adjacent_chunks(x: u8, y: u8) -> Vec<usize> {
     }
 }
 
-fn internal_set_cell(chunks: &mut [Option<&mut Chunk>; 9], x: i32, y: i32, cell: Cell) {
+fn internal_set_cell(chunks: &mut [Option<&mut Chunk>; 9], x: i32, y: i32, cell: Cell, seqno: u64) {
     let cx = x.div_euclid(CHUNK_SIZE);
     let cy = y.div_euclid(CHUNK_SIZE);
     let lx = x.rem_euclid(CHUNK_SIZE) as u8;
@@ -139,10 +139,12 @@ fn internal_set_cell(chunks: &mut [Option<&mut Chunk>; 9], x: i32, y: i32, cell:
             chunk.set_cell_at_local_position(lx, ly, cell);
             chunk.needs_texture_update = true;
             chunk.sleeping = false;
+            chunk.mark_collider_dirty(seqno);
             // if we're at the boundaries of the chunk, wake the adjacent chunk(s)
             for idx in adjacent_chunks(lx, ly) {
                 if let Some(chunk) = chunks[idx].as_mut() {
                     chunk.sleeping = false;
+                    chunk.mark_collider_dirty(seqno);
                 }
             }
         }
@@ -151,10 +153,12 @@ fn internal_set_cell(chunks: &mut [Option<&mut Chunk>; 9], x: i32, y: i32, cell:
             target.set_cell_at_local_position(x as u8, y as u8, cell);
             target.needs_texture_update = true;
             target.sleeping = false;
+            target.mark_collider_dirty(seqno);
             // if we're at the boundaries of the chunk, wake the adjacent chunk(s)
             for idx in adjacent_chunks(lx, ly) {
                 if let Some(chunk) = chunks[idx].as_mut() {
                     chunk.sleeping = false;
+                    chunk.mark_collider_dirty(seqno);
                 }
             }
         }
@@ -200,7 +204,7 @@ impl UpdateCtx<'_, '_, '_> {
         debug_assert!(dy > -CHUNK_SIZE + 1 && dy < CHUNK_SIZE - 1);
         let x = self.x + dx;
         let y = self.y + dy;
-        internal_set_cell(self.chunks, x, y, cell);
+        internal_set_cell(self.chunks, x, y, cell, self.seqno);
     }
 
     pub fn swap_or_settle(&mut self, candidates: &[(i32, i32)]) -> PostUpdateAction {
@@ -267,12 +271,12 @@ fn sim_tick_chunk(chunks: &mut [Option<&mut Chunk>; 9], seqno: u64) {
                             if cell.settled() < SETTLED_THRESOHLD {
                                 cell.match_parity(seqno + 1);
                                 cell.increment_settled();
-                                internal_set_cell(chunks, x, y, cell);
+                                internal_set_cell(chunks, x, y, cell, seqno);
                             }
                         }
                         PostUpdateAction::Apply => {
                             cell.match_parity(seqno + 1);
-                            internal_set_cell(chunks, x, y, cell);
+                            internal_set_cell(chunks, x, y, cell, seqno);
                         }
                     }
                 }