fix pathfinding

src/entities/shared_systems/pathfinding.rs

@@ -155,9 +155,10 @@ struct PathNode {
 
 impl Ord for PathNode {
     fn cmp(&self, other: &Self) -> std::cmp::Ordering {
-        self.f_score
-            .cmp(&other.f_score)
-            .then_with(|| self.g_score.cmp(&other.g_score))
+        other
+            .f_score
+            .cmp(&self.f_score)
+            .then_with(|| other.g_score.cmp(&self.g_score))
     }
 }
 
@@ -559,7 +560,8 @@ fn is_standable_tile(tilemap: &TileMap, pos: IVec3) -> bool {
 /// Returns 100 (default) if tile not found.
 #[inline]
 fn get_tile_weight(tilemap: &TileMap, pos: IVec3) -> u8 {
-    tilemap.get_astar_weight(pos)
+    let floor_pos = IVec3::new(pos.x, pos.y, pos.z - ITILE_SIZE);
+    tilemap.get_astar_weight(floor_pos)
 }
 
 /// Calculate movement cost including tile weight.