GuiHandler.java

package com.tristanvo.mod;

import cpw.mods.fml.common.network.IGuiHandler;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.world.World;

public class GuiHandler implements IGuiHandler {

    @Override
    public Object getServerGuiElement(int ID, EntityPlayer player, World world, int x, int y, int z) {
        TileEntity entity = world.getTileEntity(x, y, z);

        if(ID == mod.guiIDMoriumWorkbench)
        {
            return ID == mod.guiIDMoriumWorkbench && world.getBlock(x, y, z) == mod.blockMoriumWorkbench ? new ContainerMoriumWorkbench(player.inventory, world, x, y, z) : null;
        }
        return null;
    }
    @Override
    public Object getClientGuiElement(int ID, EntityPlayer player, World world, int x, int y, int z) {
        TileEntity entity = world.getTileEntity(x, y, z);

        if(ID == mod.guiIDMoriumWorkbench)
        {
            return ID == mod.guiIDMoriumWorkbench && world.getBlock(x, y, z) == mod.blockMoriumWorkbench ? new GuiMoriumWorkbench(player.inventory, world, x, y, z) : null;
        }
        return null;
    }
}