From 2640f91e36558650bb988dcc82b5148ee71f3eb0 Mon Sep 17 00:00:00 2001
From: Kai Stevenson <kai@kaistevenson.com>
Date: Tue, 18 Aug 2026 22:22:27 -0700
Subject: optimize with settlement counter

---
 src/sim/cell_sim/chunk.rs | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

(limited to 'src/sim/cell_sim/chunk.rs')

diff --git a/src/sim/cell_sim/chunk.rs b/src/sim/cell_sim/chunk.rs
index c7d619b..85d2c09 100644
--- a/src/sim/cell_sim/chunk.rs
+++ b/src/sim/cell_sim/chunk.rs
@@ -1,7 +1,10 @@
 use crate::{
     config::{CELLS_IN_CHUNK, CHUNK_SIZE},
     sim::{
-        cell::{cell::Cell, materials::MaterialId},
+        cell::{
+            cell::Cell,
+            materials::{MaterialForm, MaterialId},
+        },
         lib::marching_squares::Marchable,
     },
 };
@@ -36,7 +39,9 @@ impl Marchable for Chunk {
         if x < 0 || x >= CHUNK_SIZE || y < 0 || y >= CHUNK_SIZE {
             false
         } else {
-            self.get_cell_at_local_position(x as u8, y as u8).material != MaterialId::Void
+            // we only build a path for solid cells or settled powder cells
+            let cell = self.get_cell_at_local_position(x as u8, y as u8);
+            cell.material.def().form == MaterialForm::Solid || cell.settled() > 4
         }
     }
     fn size(&self) -> (i32, i32) {
-- 
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