Limit Camera by TileMap

game_arena.gd

@@ -0,0 +1,27 @@
+extends Node2D
+
+var camera_follows :Node2D= null
+
+# Called when the node enters the scene tree for the first time.
+func _ready():
+	camera_follows = $Player
+	# Limit Camera bounds to the TileMap
+	var map_rect :Rect2i= $TileMap.get_used_rect()
+	var map_tile_size = $TileMap.tile_set.tile_size
+	var map_scale_x :float= $TileMap.scale.x * map_tile_size.x
+	var map_scale_y :float= $TileMap.scale.y * map_tile_size.y
+	var left_top = map_rect.position
+	var right_bottom = map_rect.end
+	$Camera2D.limit_left = left_top[0] * map_scale_x
+	$Camera2D.limit_top = left_top[1] * map_scale_y
+	$Camera2D.limit_right = right_bottom[0] * map_scale_x
+	$Camera2D.limit_bottom = right_bottom[1] * map_scale_y
+
+func camera_follow():
+	if camera_follows == null:
+		return
+	$Camera2D.position = camera_follows.position
+
+# Called every frame. 'delta' is the elapsed time since the previous frame.
+func _process(delta):
+	camera_follow()