ComputerGui.java

package com.pixelutilitys.gui;

import net.minecraft.client.gui.GuiButton;
import net.minecraft.client.gui.GuiScreen;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.util.ResourceLocation;
import org.lwjgl.opengl.GL11;

public class ComputerGui extends GuiScreen {
    public ComputerGui(EntityPlayer player) {

    }

    public final int xSizeOfTexture = 176;
    public final int ySizeOfTexture = 88;

    @Override
    public void drawScreen(int x, int y, float f) {
        drawDefaultBackground();
        drawDefaultBackground();

        //int var4 = this.mc.renderEngine.getTexture("/Block/changeColorGUI.png");

        ResourceLocation var4 = new ResourceLocation("pixelutilitys:gui/computer");
        GL11.glColor4f(1.0F, 1.0F, 1.0F, 1.0F);
        this.mc.renderEngine.bindTexture(var4);

        int posX = (this.width - xSizeOfTexture) / 2;
        int posY = (this.height - ySizeOfTexture) / 2;

        drawTexturedModalRect(posX, posY, 0, 0, xSizeOfTexture, ySizeOfTexture);

        super.drawScreen(x, y, f);
        super.drawScreen(x, y, f);
    }

    public void initGui() {
        this.buttonList.clear();

        int posX = (this.width - xSizeOfTexture) / 2;
        int posY = (this.height - ySizeOfTexture) / 2;

        this.buttonList.add(new GuiButton(0, posX + 40, posY + 40, 100, 20, "no use"));
    }


    public void actionPerformed(GuiButton button) {
        switch (button.id) {
            case 0:
                break;
            default:
        }
    }
}