ModGuiHandler.java

package qwertyasdef.alchemtrans.network;

import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.util.math.BlockPos;
import net.minecraft.world.World;
import net.minecraftforge.fml.common.network.IGuiHandler;
import qwertyasdef.alchemtrans.Tile.TileNetherrackFurnace;
import qwertyasdef.alchemtrans.client.gui.GuiNetherrackFurnace;
import qwertyasdef.alchemtrans.inventory.ContainerNetherrackFurnace;

public class ModGuiHandler implements IGuiHandler {

    @Override
    public Object getServerGuiElement(int ID, EntityPlayer player, World world, int x, int y, int z) {
        BlockPos pos = new BlockPos(x, y, z);
        TileEntity tileEntity = world.getTileEntity(pos);
        if (tileEntity != null) {
            switch (ID) {
                case 0:
                    return new ContainerNetherrackFurnace(player.inventory, (TileNetherrackFurnace) tileEntity);
            }
        }

        return null;
    }

    @Override
    public Object getClientGuiElement(int ID, EntityPlayer player, World world, int x, int y, int z) {
        BlockPos pos = new BlockPos(x, y, z);
        TileEntity tileEntity = world.getTileEntity(pos);
        if (tileEntity != null) {
            switch (ID) {
                case 0:
                    return new GuiNetherrackFurnace((TileNetherrackFurnace) tileEntity, new ContainerNetherrackFurnace(player.inventory, (TileNetherrackFurnace) tileEntity));
            }
        }

        return null;
    }
}