Partial implementation of road deletion

infrastructure/node.odin

@@ -46,5 +46,16 @@ node_unreference_road :: proc(self: ^Node, road_to_unref: u32) -> bool {
 		return true
 	}
 	
+	return false
+}
+
+node_update_road_reference :: proc(self: ^Node, old_ref: u32, new_ref: u32) -> bool {
+	for &road in self.roads {
+		if road != old_ref do continue
+		
+		road = new_ref
+		return true
+	}
+	
 	return false
 }