    001package cpw.mods.fml.client;
    002
    003import net.minecraft.client.gui.FontRenderer;
    004import net.minecraft.client.gui.GuiErrorScreen;
    005import cpw.mods.fml.common.IFMLHandledException;
    006import cpw.mods.fml.relauncher.Side;
    007import cpw.mods.fml.relauncher.SideOnly;
    008
    009/**
    010 * If a mod throws this exception during loading, it will be called back to render
    011 * the error screen through the methods below. This error will not be cleared, and will
    012 * not allow the game to carry on, but might be useful if your mod wishes to report
    013 * a fatal configuration error in a pretty way.
    014 *
    015 * Throw this through a proxy. It won't work on the dedicated server environment.
    016 * @author cpw
    017 *
    018 */
    019@SideOnly(Side.CLIENT)
    020public abstract class CustomModLoadingErrorDisplayException extends RuntimeException implements IFMLHandledException
    021{
    022    /**
    023     * Called after the GUI is inited by the parent code. You can do extra stuff here, maybe?
    024     *
    025     * @param errorScreen The error screen we're painting
    026     * @param fontRenderer A font renderer for you
    027     */
    028    public abstract void initGui(GuiErrorScreen errorScreen, FontRenderer fontRenderer);
    029
    030    /**
    031     * Draw your error to the screen.
    032     *
    033     * <br/><em>Warning: Minecraft is in a deep error state.</em> <strong>All</strong> it can do is stop.
    034     * Do not try and do anything involving complex user interaction here.
    035     *
    036     * @param errorScreen The error screen to draw to
    037     * @param fontRenderer A font renderer for you
    038     * @param mouseRelX Mouse X
    039     * @param mouseRelY Mouse Y
    040     * @param tickTime tick time
    041     */
    042    public abstract void drawScreen(GuiErrorScreen errorScreen, FontRenderer fontRenderer, int mouseRelX, int mouseRelY, float tickTime);
    043}