Routines
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37444: Handle Door Locked
The handler for the locked doors (sprite IDs 8 to 11). When the player has the key and is in range of the door, both halves of the door become exits (sprite ID 2 see HandlerDoorExit) and the player goes through it with EnterDoor. The door is otherwise shown by HandlerRoomItem.
Input
IX The door entity
HandlerDoorLocked 37444 CALL CheckDoorKey Call CheckDoorKey to see whether the player has the key.
37447 JP NC,HandlerRoomItem Jump to HandlerRoomItem if not.
37450 LD A,2 A=2 (the sprite ID of an unlocked door).
This entry point is used by the routine at HandlerCaveDoorLocked.
HandlerDoorLocked_Unlock 37452 CALL SetDoorSprites Call SetDoorSprites to unlock both halves of the door.
37455 JP EnterDoor Jump to EnterDoor to enter the door.
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