Add block collision

GameBoard.gd

@@ -19,15 +19,33 @@ func get_random_shape():
 
 
 func update_board():
-	if active_shape.position.y == RASTER_SIZE * 10:
+	if can_active_move_down():
+		move_active_down()
+	else:
 		turn_active_into_static()
 		check_for_full_line()
 		
 		active_shape = get_random_shape()
 
+
+func move_active_down():
 	active_shape.position.y += RASTER_SIZE
 
 
+func can_active_move_down():
+	if active_shape.position.y >= RASTER_SIZE * 10:
+		return false
+	
+	for block in active_shape.get_blocks():
+		var down_x = block.global_position.x
+		var down_y = block.global_position.y + RASTER_SIZE
+		
+		if is_block_at_position(down_x, down_y):
+			return false
+	
+	return true
+
+
 func turn_active_into_static():
 	for block in active_shape.get_blocks():
 		var global_shape_position = block.global_position
@@ -72,12 +90,21 @@ func rotate_shape():
 
 
 func drop():
-	active_shape.position.y = BOTTOM
+	while can_active_move_down():
+		move_active_down()
 	
 	# Restart the timer to give full time for sliding the piece
 	$GravityTimer.start()
 
 
+func is_block_at_position(pos_x, pos_y):
+	for block in $StaticBlocks.get_children():
+		if block.global_position.x == pos_x and block.global_position.y == pos_y:
+			return true
+	
+	return false
+
+
 func _input(event):
 	if event.is_action_pressed("move_left"):
 		move_left()