BlockContainerBiota.java

package com.dynious.biota.block;

import com.dynious.biota.tileentity.IOrientated;
import net.minecraft.block.Block;
import net.minecraft.block.ITileEntityProvider;
import net.minecraft.block.material.Material;
import net.minecraft.entity.EntityLivingBase;
import net.minecraft.entity.item.EntityItem;
import net.minecraft.inventory.IInventory;
import net.minecraft.item.ItemStack;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.util.MathHelper;
import net.minecraft.world.World;
import net.minecraftforge.common.util.ForgeDirection;

import java.util.Random;

public abstract class BlockContainerBiota extends BlockBiota implements ITileEntityProvider
{
    public BlockContainerBiota(Material material)
    {
        super(material);
        this.isBlockContainer = true;
    }

    /**
     * Called whenever the block is added into the world. Args: world, x, y, z
     */
    public void onBlockAdded(World world, int x, int y, int z)
    {
        super.onBlockAdded(world, x, y, z);
    }

    public void breakBlock(World world, int x, int y, int z, Block block, int meta)
    {
        dropInventory(world, x, y, z);
        super.breakBlock(world, x, y, z, block, meta);
        world.removeTileEntity(x, y, z);
    }

    public boolean onBlockEventReceived(World world, int x, int y, int z, int id, int argument)
    {
        super.onBlockEventReceived(world, x, y, z, id, argument);
        TileEntity tileentity = world.getTileEntity(x, y, z);
        return tileentity != null && tileentity.receiveClientEvent(id, argument);
    }

    protected void dropInventory(World world, int x, int y, int z)
    {
        TileEntity tileEntity = world.getTileEntity(x, y, z);

        if (!(tileEntity instanceof IInventory))
        {
            return;
        }

        IInventory inventory = (IInventory) tileEntity;

        for (int i = 0; i < inventory.getSizeInventory(); i++)
        {
            ItemStack itemStack = inventory.getStackInSlot(i);

            if (itemStack != null && itemStack.stackSize > 0)
            {
                Random rand = new Random();

                float dX = rand.nextFloat() * 0.8F + 0.1F;
                float dY = rand.nextFloat() * 0.8F + 0.1F;
                float dZ = rand.nextFloat() * 0.8F + 0.1F;

                EntityItem entityItem = new EntityItem(world, x + dX, y + dY, z + dZ, itemStack.copy());

                if (itemStack.hasTagCompound())
                {
                    entityItem.getEntityItem().setTagCompound((NBTTagCompound) itemStack.getTagCompound().copy());
                }

                float factor = 0.05F;
                entityItem.motionX = rand.nextGaussian() * factor;
                entityItem.motionY = rand.nextGaussian() * factor + 0.2F;
                entityItem.motionZ = rand.nextGaussian() * factor;
                world.spawnEntityInWorld(entityItem);
                itemStack.stackSize = 0;
            }
        }
    }

    @Override
    public void onBlockPlacedBy(World world, int x, int y, int z, EntityLivingBase entityLiving, ItemStack itemStack)
    {
        if (world.getTileEntity(x, y, z) instanceof IOrientated)
        {
            ForgeDirection direction = ForgeDirection.NORTH;
            int facing = MathHelper.floor_double(entityLiving.rotationYaw * 4.0F / 360.0F + 0.5D) & 3;

            if (facing == 0)
            {
                direction = ForgeDirection.NORTH;
            }
            else if (facing == 1)
            {
                direction = ForgeDirection.EAST;
            }
            else if (facing == 2)
            {
                direction = ForgeDirection.SOUTH;
            }
            else if (facing == 3)
            {
                direction = ForgeDirection.WEST;
            }

            ((IOrientated) world.getTileEntity(x, y, z)).setOrientation(direction);
        }
    }
}