Door connections

metroidvania/Scenes/World/World.gd

@@ -1,6 +1,33 @@
 extends Node
 
+var MainInstances = ResourceLoader.MainInstances
+
 onready var currentLevel = $Level_00
 
 func _ready():
 	VisualServer.set_default_clear_color(Color.black)
+	MainInstances.Player.connect("hit_door", self, "_on_Player_hit_door")
+	
+func _on_Player_hit_door(door):
+	# Executes the function after the current tick of the game is done, to make
+	# sure everything is ready to be switched since we're doing calculations
+	# based on the current level
+	call_deferred("change_levels", door)
+	
+func change_levels(door):
+	var offset = currentLevel.position
+	currentLevel.queue_free()
+	var NewLevel = load(door.new_level_path)
+	var newLevel = NewLevel.instance()
+	add_child(newLevel)
+	var newDoor = get_door_with_connection(door)
+	var exit_position = newDoor.position - offset
+	newLevel.position = door.position - exit_position
+	
+func get_door_with_connection(outgoingDoor):
+	var doors = get_tree().get_nodes_in_group("Door")
+	for door in doors:
+		if door.connection == outgoingDoor.connection and door != outgoingDoor:
+			return door
+			
+	return null