From a216e61a00bde792a49a92593012f9baecf86f3d Mon Sep 17 00:00:00 2001
From: Kai Stevenson <kai@kaistevenson.com>
Date: Fri, 21 Aug 2026 00:14:10 -0700
Subject: explosions

---
 src/sim/cell_sim/sim.rs | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

(limited to 'src/sim/cell_sim')

diff --git a/src/sim/cell_sim/sim.rs b/src/sim/cell_sim/sim.rs
index 9b07b98..3fc3a0f 100644
--- a/src/sim/cell_sim/sim.rs
+++ b/src/sim/cell_sim/sim.rs
@@ -171,7 +171,7 @@ pub struct UpdateCtx<'a, 'b, 'c> {
     pub material: &'c MaterialDef,
 
     pub rng: &'c mut dyn Rng,
-    swapped: bool,
+    pub do_rewrite: bool,
 }
 
 impl UpdateCtx<'_, '_, '_> {
@@ -202,7 +202,7 @@ impl UpdateCtx<'_, '_, '_> {
                 self.cell.match_parity(self.seqno + 1);
                 self.set_cell(0, 0, candidate_cell);
                 self.set_cell(dx, dy, *self.cell);
-                self.swapped = true;
+                self.do_rewrite = false;
                 return true;
             }
         }
@@ -245,12 +245,12 @@ pub fn sim_tick_chunk(chunks: &mut [Option<&mut Chunk>; 9], seqno: u64) {
 
                         // TODO this is platform-dependent, will break for multiplayer
                         rng: &mut rng,
-                        swapped: false,
+                        do_rewrite: true,
                     };
 
                     update(&mut update_ctx);
 
-                    if !update_ctx.swapped {
+                    if update_ctx.do_rewrite {
                         // the cell didn't move, so it's more settled, and we also need to update its state for parity
                         cell.increment_settled();
                         set_cell(chunks, x, y, cell);
-- 
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