DeathChests/src/main/java/lostcave/deathchests/block/BlockDeathChest.java

package lostcave.deathchests.block;

import java.util.ArrayList;
import java.util.Random;
import java.util.UUID;

import cpw.mods.fml.common.FMLCommonHandler;
import lostcave.deathchests.util.Config;
import lostcave.deathchests.util.Debug;
import net.minecraft.block.BlockContainer;
import net.minecraft.block.material.Material;
import net.minecraft.client.renderer.texture.IIconRegister;
import net.minecraft.entity.item.EntityItem;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.nbt.NBTTagList;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.util.ChatComponentText;
import net.minecraft.util.IIcon;
import net.minecraft.world.Explosion;
import net.minecraft.world.World;

public class BlockDeathChest extends BlockContainer {

    private static final BlockDeathChest instance = new BlockDeathChest();

    public static BlockDeathChest getInstance() {
        return instance;
    }
    
    private IIcon[] icons = new IIcon[6];

    private BlockDeathChest() {
        super(Material.rock);
        this.setBlockName("death_chest");
        this.disableStats();
        this.setBlockUnbreakable();
        // same value as bedrock
        this.setResistance(6000000.0F);
        this.setBlockBounds(0.0625F, 0.0F, 0.0625F, 0.9375F, 0.875F, 0.9375F);
        this.setBlockTextureName("deathchests:deathchest_top");
    }

    @Override
    public void registerBlockIcons(IIconRegister register) {
        icons[0] = register.registerIcon("deathchests:deathchest_top");
        icons[1] = register.registerIcon("deathchests:deathchest_top");
        icons[2] = register.registerIcon("deathchests:deathchest_side");
        icons[3] = register.registerIcon("deathchests:deathchest_side");
        icons[4] = register.registerIcon("deathchests:deathchest_side");
        icons[5] = register.registerIcon("deathchests:deathchest_side");
    }
    
    @Override
    public IIcon getIcon(int side, int meta) {
        return icons[side];
    }
    
    @Override
    public boolean isOpaqueCube() {
        return false;
    }

    @Override
    public boolean renderAsNormalBlock() {
        return true;
    }

    @Override
    protected boolean canSilkHarvest() {
        return false;
    }

    @Override
    public boolean canDropFromExplosion(Explosion p_149659_1_) {
        return false;
    }

    @Override
    public Item getItemDropped(int p_149650_1_, Random p_149650_2_, int p_149650_3_) {
        return null;
    }

    /**
     * Called upon block activation (right click on the block.)
     */
    @Override
    public boolean onBlockActivated(World world, int x, int y, int z, EntityPlayer player, int p_149727_6_, float p_149727_7_, float p_149727_8_, float p_149727_9_) {
        if (world.isRemote) return true;

        TileDeathChest tileDeathChest = (TileDeathChest) world.getTileEntity(x, y, z);
        if (tileDeathChest != null) {
            tileDeathChest.requestItems(player);
            return true;
        } else return true;
    }

    /**
     * Called when a player hits the block. Args: world, x, y, z, player
     */
    @Override
    public void onBlockClicked(World world, int x, int y, int z, EntityPlayer player) {
        if (world.isRemote) return;

        TileDeathChest tileDeathChest = (TileDeathChest) world.getTileEntity(x, y, z);
        if (tileDeathChest != null) {
            tileDeathChest.requestItems(player);
        }
    }

    /**
     * Returns a new instance of a block's tile entity class. Called on placing the
     * block.
     */
    @Override
    public TileEntity createNewTileEntity(World p_149915_1_, int p_149915_2_) {
        return new TileDeathChest();
    }

    public static class TileDeathChest extends TileEntity {

        private ArrayList<ItemStack> containedItems = new ArrayList<>();
        public UUID owner = null;

        public void requestItems(EntityPlayer player) {
            if (player.getGameProfile().getId() == owner || Config.allowOtherPlayers) {
                this.worldObj.setBlockToAir(this.xCoord, this.yCoord, this.zCoord);
                for (int i = 0; i < containedItems.size(); i++) {
                    this.worldObj.spawnEntityInWorld(new EntityItem(this.worldObj, xCoord, yCoord, zCoord, containedItems.get(i)));
                }
            } else {
                player.addChatMessage(new ChatComponentText(Config.notAllowedMessage));
            }
        }

        public void addItemStack(ItemStack itemStack) {
            containedItems.add(itemStack);
        }

        @Override
        public void readFromNBT(NBTTagCompound compound) {
            Debug.out("Loading death chest from disk");
            super.readFromNBT(compound);
            containedItems = new ArrayList<>();

            NBTTagList stacks = (NBTTagList) compound.getTag("stored_items");
            for (int i = 0; i < stacks.tagCount(); i++) {
                ItemStack stack = ItemStack.loadItemStackFromNBT(stacks.getCompoundTagAt(i));
                Debug.out(stack.getDisplayName());
                containedItems.add(stack);
            }

            Debug.out("--");
        }

        @Override
        public void writeToNBT(NBTTagCompound compound) {
            Debug.out("Writing death chest to disk");
            super.writeToNBT(compound);

            NBTTagList stacks = new NBTTagList();

            for (int i = 0; i < containedItems.size(); i++) {
                NBTTagCompound itemStackCompound = new NBTTagCompound();
                containedItems.get(i).writeToNBT(itemStackCompound);
                stacks.appendTag(itemStackCompound);
            }

            compound.setTag("stored_items", stacks);
        }
    }

}