public class GuiDuel extends GuiContainer
{
    private static final ResourceLocation DUELFIELD_GUI_TEXTURE = new ResourceLocation(
            Reference.MODID + ":textures/gui/container/duelGui2.png");
    private InventoryPlayer playerInv;
    private GuiButton attackButton;
    private GuiButton quitButton;
    private TileEntityDuelField tile;

    public GuiDuel(EntityPlayer player, TileEntityDuelField tileDuelField)
    {
        super(new ContainerDuel(player, tileDuelField));
        this.playerInv = player.inventory;
        this.tile = tileDuelField;
    }

    @Override
    public void initGui()
    {
        super.initGui();

        attackButton = new GuiButton(0, 13, 20, 60, 20, "Attack");
        quitButton = new GuiButton(1, 13, 40, 60, 20, "Quit duel");

        this.buttonList.add(attackButton);
        this.buttonList.add(quitButton);
    }

    /**
     * Returns true if this GUI should pause the game when it is displayed in
     * single-player
     */
    @Override
    public boolean doesGuiPauseGame()
    {
        return false;
    }

    @Override
    protected void actionPerformed(GuiButton parButton)
    {
        if (parButton.id == 0 && this.tile.getWorld() != null && this.tile.getWorld().isRemote)
        {
            //NetworkHandler.NETWORK.sendToServer(new PacketAttack(tileDuelField.getPos()));
        }
        else if(parButton.id == 1 && this.tile.getWorld() != null && this.tile.getWorld().isRemote)
        {
            NetworkHandler.NETWORK.sendToServer(new PacketQuitDuel(tile.getPos()));
            this.mc.displayGuiScreen(null);
        }
    }

    @Override
    protected void keyTyped(char typedChar, int keyCode) throws IOException
    {
        if (keyCode == 1 || this.mc.gameSettings.keyBindInventory.isActiveAndMatches(keyCode))
        {
            return;
        }
    }

    @Override
    public void drawScreen(int mouseX, int mouseY, float partialTicks)
    {
        super.drawScreen(mouseX, mouseY, partialTicks);

        this.zLevel = 50;

        World world = this.mc.theWorld;
        if(world != null)
        {
            TileEntityDuelField teN = (TileEntityDuelField) world.getTileEntity(tile.getPos().north(10));
            TileEntityDuelField teS = (TileEntityDuelField) world.getTileEntity(tile.getPos().south(10));

            if(teN != null)
            {
                ItemStackHandler inv = teN.inventory();
                ItemStack stack = inv.getStackInSlot(4);
                if(stack != null)
                {
                    this.itemRender.renderItemAndEffectIntoGUI(stack, 130, 40);
                    this.itemRender.renderItemOverlayIntoGUI(this.fontRendererObj, stack, 120, 50, stack.getDisplayName());
                }
            }
            else if(teS != null)
            {
                ItemStackHandler inv = teS.inventory();
                ItemStack stack = inv.getStackInSlot(4);
                if(stack != null)
                {
                    this.itemRender.renderItemAndEffectIntoGUI(stack, 130, 40);
                    this.itemRender.renderItemOverlayIntoGUI(this.fontRendererObj, stack, 120, 50, stack.getDisplayName());
                }
            }
        }

        this.zLevel = 0;
    }

    /**
     * Draw the foreground layer for the GuiContainer (everything in front of
     * the items)
     */
    protected void drawGuiContainerForegroundLayer(int mouseX, int mouseY)
    {
        String s = I18n.format("Your side");
        String r = I18n.format("Opponent's side");
        this.fontRendererObj.drawString(s, this.xSize / 2 - this.fontRendererObj.getStringWidth(s) / 2, 50, 4210752);
        this.fontRendererObj.drawString(r, this.xSize / 2 - this.fontRendererObj.getStringWidth(r) / 2, -20, 4210752);
        this.fontRendererObj.drawString("Hand", 35, 165, 4210752);
    }

    /**
     * Draws the background layer of this container (behind the items).
     */
    protected void drawGuiContainerBackgroundLayer(float partialTicks, int mouseX, int mouseY)
    {
        GlStateManager.color(1.0F, 1.0F, 1.0F, 1.0F);
        this.mc.getTextureManager().bindTexture(DUELFIELD_GUI_TEXTURE);
        int i = (this.width - this.xSize) / 2;
        int j = (this.height - this.ySize) / 2;
        this.drawTexturedModalRect(i, j - 35, 0, 0, this.xSize, 250);
    }
}