CommonProxy

public class CommonProxy implements IGuiHandler{

    public static final int GUI_TUNNELER = 1;
    public static final int GUI_KINETIC_RELOCATOR = 2;
    public static final int GUI_TELEPORTER = 3;

    public void registerRenders(){}

    public EntityPlayer getPlayerEntity(MessageContext ctx){
        return ctx.getServerHandler().playerEntity;
    }

    public IThreadListener getThreadFromContext(MessageContext ctx){
        return ctx.getServerHandler().playerEntity.getServerForPlayer();
    }


    public void initial(){
        NetworkRegistry.INSTANCE.registerGuiHandler(EnergyTools.EnergyTools.instance, new CommonProxy());
    }


    @Override
    public Object getServerGuiElement(int ID, EntityPlayer player, World world, int x, int y, int z) {
        switch(ID){
            case(GUI_TUNNELER):{
                return new ContainerItem(player, player.inventory, new InventoryItem(player.getHeldItem()));
            }

            case(GUI_KINETIC_RELOCATOR):{
                return new ContainerKineticRelocator(player.inventory, (KineticRelocatorTileEntity) world.getTileEntity(new BlockPos(x,y,z)));
            }

            case(GUI_TELEPORTER):{
                return new ContainerTeleporterBlock(player.inventory, (TeleporterTE) world.getTileEntity(new BlockPos(x,y,z)));
            }
        }
        return null;
    }



    @Override
    public Object getClientGuiElement(int ID, EntityPlayer player, World world, int x, int y, int z) {
        switch(ID){
            case(GUI_TUNNELER):{
                return new GuiItemInventory((ContainerItem) new ContainerItem(player, player.inventory, new InventoryItem(player.getHeldItem())));
            }

            case(GUI_KINETIC_RELOCATOR):{
                return new GuiKineticRelocator(player.inventory, (KineticRelocatorTileEntity) world.getTileEntity(new BlockPos(x,y,z)));
            }

            case(GUI_TELEPORTER):{
                return new GuiTeleporterBlock(player.inventory, (TeleporterTE) world.getTileEntity(new BlockPos(x,y,z)));
            }

        }
        return null;
    }
}