src/main/java/com/legacy/aether/blocks/dungeon/BlockTreasureChest.java

package com.legacy.aether.blocks.dungeon;

import java.util.Random;

import net.minecraft.block.BlockChest;
import net.minecraft.client.renderer.texture.IIconRegister;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.item.ItemStack;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.world.World;

import com.legacy.aether.Aether;
import com.legacy.aether.CommonProxy;
import com.legacy.aether.items.ItemsAether;
import com.legacy.aether.network.AetherGuiHandler;
import com.legacy.aether.tileentity.TileEntityTreasureChest;

import cpw.mods.fml.relauncher.Side;
import cpw.mods.fml.relauncher.SideOnly;

public class BlockTreasureChest extends BlockChest {

	public BlockTreasureChest() {
		super(56);

		this.setBlockUnbreakable();
	}

	@Override
	@SideOnly(Side.CLIENT)
	public void registerBlockIcons(IIconRegister p_149651_1_) {
		this.blockIcon = p_149651_1_.registerIcon(Aether.find("carved_stone"));
	}

	@Override
	public TileEntity createNewTileEntity(World worldIn, int meta) {
		return new TileEntityTreasureChest();
	}

	@Override
	public boolean onBlockActivated(World worldIn, int x, int y, int z, EntityPlayer playerIn, int side, float hitX, float hitY, float hitZ) {
		if (worldIn.isRemote) {
			return true;
		}

		TileEntityTreasureChest treasurechest = (TileEntityTreasureChest) worldIn.getTileEntity(x, y, z);

		ItemStack guiID = playerIn.getCurrentEquippedItem();

		if (treasurechest.isLocked()) {
			if (guiID == null || guiID != null && guiID.getItem() != ItemsAether.dungeon_key) {
				return false;
			}

			treasurechest.unlock(guiID.getItemDamage());

			--guiID.stackSize;
		} else {
			playerIn.openGui(Aether.instance, AetherGuiHandler.treasure_chest, worldIn, x, y, z);
		}

		return true;
	}

	@Override
	public int quantityDropped(Random random) {
		return 0;
	}

	@Override
	public int getRenderType() {
		return CommonProxy.treasureChestRenderID;
	}

}