fix #240; fix #241

1 files changed, 13 insertions, 9 deletions

diff --git a/client/map/tiles/floor_mesher.gd b/client/map/tiles/floor_mesher.gd
index 182425a5..d3a66c89 100644
--- a/client/map/tiles/floor_mesher.gd
+++ b/client/map/tiles/floor_mesher.gd
@@ -31,21 +31,25 @@ var tiles: Dictionary
 func add_tile(pos: Vector2i):
 	tiles[str(pos)] = pos
 
+func remove_tile(pos: Vector2i):
+	tiles.erase(str(pos))
+
 func flush() -> ArrayMesh:
+	var tiles_queue = tiles.duplicate()
 	var st := SurfaceTool.new()
 	st.begin(Mesh.PRIMITIVE_TRIANGLES)
 
-	while not tiles.is_empty():
-		var key: String = tiles.keys()[0]
-		var tile_position: Vector2i = tiles[key]
+	while not tiles_queue.is_empty():
+		var key: String = tiles_queue.keys()[0]
+		var tile_position: Vector2i = tiles_queue[key]
 		var shift := Vector2i.ZERO
 		# move the origin of the rectangle to the upper left corner
 		while true:
-			#if tiles.has(str(tile_position + shift + Vector2i.UP + Vector2i.LEFT)):
+			#if tiles_queue.has(str(tile_position + shift + Vector2i.UP + Vector2i.LEFT)):
 			#	shift += Vector2i.UP + Vector2i.LEFT
-			if tiles.has(str(tile_position + shift + Vector2i.UP)):
+			if tiles_queue.has(str(tile_position + shift + Vector2i.UP)):
 				shift += Vector2i.UP
-			elif tiles.has(str(tile_position + shift + Vector2i.LEFT)):
+			elif tiles_queue.has(str(tile_position + shift + Vector2i.LEFT)):
 				shift += Vector2i.LEFT
 			else:
 				break
@@ -54,14 +58,14 @@ func flush() -> ArrayMesh:
 		var rectangle := Vector2i.ONE
 
 		# go down as long as possible
-		while tiles.has(str(rectangle_origin + Vector2i(0, rectangle.y))):
+		while tiles_queue.has(str(rectangle_origin + Vector2i(0, rectangle.y))):
 			rectangle.y += 1
 
 		# try to go right as long as possible by checking if whole columns are long enough
 		while true:
 			var column_possible := true
 			for i in range(0, rectangle.y):
-				column_possible = tiles.has(str(rectangle_origin + Vector2i(rectangle.x, i)))
+				column_possible = tiles_queue.has(str(rectangle_origin + Vector2i(rectangle.x, i)))
 				if not column_possible: break
 			if column_possible:
 				rectangle.x += 1
@@ -102,5 +106,5 @@ func flush() -> ArrayMesh:
 		# remove the rectangle from the "queue"
 		for x in range(rectangle_origin.x, rectangle_origin.x + rectangle.x):
 			for y in range(rectangle_origin.y, rectangle_origin.y + rectangle.y):
-				tiles.erase(str(Vector2i(x, y)))
+				tiles_queue.erase(str(Vector2i(x, y)))
 	return st.commit()