scripting: check if treasure chest is open

[jens]

Add a debug message to DoorState and make sure the door and that area actually interacts so that the variable changes.

You also want to set AddEntityCollideCallback("storage_door1", "monster_scare3", "DoorState", true, 0);

to false

AddEntityCollideCallback("storage_door1", "monster_scare3", "DoorState", false, 0);

as the player could open and close the door several times and you want to keep checking that for each, with true it auto disabled after the first collision.