/** Locks the chest with the item the player is currently holding, if possible. */
public boolean lockChest(EntityPlayer player) {
ItemStack lock = player.getHeldItem();
if (!canLock(lock)) return false;
setLock(lock);
player.inventory.setInventorySlotContents(player.inventory.currentItem, null);
return true;
}
/** Unlocks the chest with the item the player is currently holding, if possible. */
public boolean unlockChest(EntityPlayer player) {
ItemStack key = player.getHeldItem();
if (!canUnlock(key)) return false;
ItemStack lock = getLock();
setLock(null);
EntityItem item = player.dropPlayerItem(lock);
item.delayBeforeCanPickup = 0;
return true;
}
public void dropLock() {
ItemStack lock = getLock();
if (lock == null) return;
dropItemStack(lock);
setLock(null);
}