package net.minecraft.client.gui;

import java.io.IOException;

import net.minecraft.client.network.NetHandlerPlayClient;
import net.minecraft.client.resources.I18n;
import net.minecraft.network.play.client.C00PacketKeepAlive;

public class GuiDownloadTerrain extends GuiScreen
{
    private NetHandlerPlayClient netHandlerPlayClient;
    private int progress;

    public GuiDownloadTerrain(NetHandlerPlayClient netHandler)
    {
        this.netHandlerPlayClient = netHandler;
    }

    /**
     * Fired when a key is typed (except F11 which toggles full screen). This is the equivalent of
     * KeyListener.keyTyped(KeyEvent e). Args : character (character on the key), keyCode (lwjgl Keyboard key code)
     */
    @Override
	protected void keyTyped(char typedChar, int keyCode) throws IOException {}

    /**
     * Adds the buttons (and other controls) to the screen in question. Called when the GUI is displayed and when the
     * window resizes, the buttonList is cleared beforehand.
     */
    @Override
	public void initGui()
    {
        this.buttonList.clear();
    }

    /**
     * Called from the main game loop to update the screen.
     */
    @Override
	public void updateScreen()
    {
        ++this.progress;

        if (this.progress % 20 == 0)
        {
            this.netHandlerPlayClient.addToSendQueue(new C00PacketKeepAlive());
        }
    }

    /**
     * Draws the screen and all the components in it. Args : mouseX, mouseY, renderPartialTicks
     */
    @Override
	public void drawScreen(int mouseX, int mouseY, float partialTicks)
    {
        this.drawBackground(0);
        this.drawCenteredString(this.fontRendererObj, I18n.format("multiplayer.downloadingTerrain", new Object[0]), this.width / 2, this.height / 2 - 50, 16777215);
        super.drawScreen(mouseX, mouseY, partialTicks);
    }

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