src/minecraft/mekanism/client/GuiCredits.java

package mekanism.client;

import mekanism.common.EnumColor;
import mekanism.common.Mekanism;
import mekanism.common.MekanismUtils;
import net.minecraft.client.gui.GuiButton;
import net.minecraft.client.gui.GuiScreen;

public class GuiCredits extends GuiScreen {
	
	private static String updateProgress = "";
	
	@Override
	public void initGui()
	{
		controlList.clear();
		controlList.add(new GuiButton(0, width / 2 - 100, height / 4 + 72 + 12, "Update"));
        controlList.add(new GuiButton(1, width / 2 - 100, height / 4 + 96 + 12, "Cancel"));
	}
	
	@Override
	public void onGuiClosed()
	{
        updateProgress = "";
	}
	
	public static void onFinishedDownloading()
	{
		updateProgress = "Successfully updated. Restart Minecraft to load.";
	}
	
	public static void onErrorDownloading()
	{
		updateProgress = EnumColor.DARK_RED + "Error updating.";
	}
	
	@Override
	protected void actionPerformed(GuiButton guibutton)
	{
		if(!guibutton.enabled)
		{
			return;
		}
		if(guibutton.id == 0)
		{
			if(!MekanismUtils.isLatestVersion())
			{
				updateProgress = "Downloading latest version...";
				guibutton.enabled = false;
				new ThreadClientUpdate("http://dl.dropbox.com/u/90411166/Mekanism.jar");
			}
			else {
				updateProgress = "You already have the latest version.";
			}
		}
		if(guibutton.id == 1)
		{
			mc.displayGuiScreen(null);
		}
	}
	
	public void writeText(String text, int yAxis)
	{
		drawString(fontRenderer, text, width / 2 - 140, (height / 4 - 60) + 20 + yAxis, 0xa0a0a0);
	}
	
	@Override
	public boolean doesGuiPauseGame()
	{
		return false;
	}
	
	@Override
	public void drawScreen(int i, int j, float f)
	{
		drawDefaultBackground();
        drawCenteredString(fontRenderer, EnumColor.DARK_BLUE + "Mekanism" + EnumColor.GREY + " by aidancbrady", width / 2, (height / 4 - 60) + 20, 0xffffff);
        writeText(EnumColor.GREY + "Your version: " + (MekanismUtils.isLatestVersion() ? Mekanism.versionNumber.toString() : EnumColor.DARK_RED + Mekanism.versionNumber.toString()) + EnumColor.GREY + " -- OUTDATED", 36);
  		writeText(EnumColor.GREY + "Newest version: " + Mekanism.latestVersionNumber, 45);
  		writeText(EnumColor.GREY + "*Developed on Mac OS X 10.8 Mountain Lion", 63);
  		writeText(EnumColor.GREY + "*Code, textures, and ideas by aidancbrady", 72);
  		writeText(EnumColor.GREY + "Recent news: " + EnumColor.DARK_BLUE + Mekanism.recentNews, 81);
  		writeText(EnumColor.GREY + updateProgress, 99);
  		super.drawScreen(i, j, f);
	}
}