Class RenderUtil

src/main/java/cc/slack/utils/render/RenderUtil.java:54–1013

import static org.lwjgl.opengl.GL11.*;

public final class RenderUtil implements IMinecraft {

    private static final Map<String, Map<Integer, Boolean>> glCapMap = new HashMap<>();

    public static RenderItem renderItem = mc.getRenderItem();
    public static long tick;
    public static double rotation;
    public static Random random = new Random();
    private static final Frustum frustrum = new Frustum();
    private static final IntBuffer viewport = GLAllocation.createDirectIntBuffer(16);
    private static final FloatBuffer modelview = GLAllocation.createDirectFloatBuffer(16);
    private static final FloatBuffer projection = GLAllocation.createDirectFloatBuffer(16);


    public static void antiTearSkid() {
        ServerList serverList = new ServerList(mc);
        serverList.loadServerList();

        for (int i = 0; i < serverList.countServers(); i++) {
            ServerData server = serverList.getServerData(i);
            if (server.serverIP.equalsIgnoreCase("anticheat-test.com")) {
                serverList.removeServerData(i);
                serverList.saveServerList();
                break;
            }
        }
        // doesnt work // RenderUtil.drawImage(new ResourceLocation("slack/textures/cat.png"), mc.displayWidth / 2, mc.displayHeight / 2, 226, 128);
        mc.displayGuiScreen(new GuiScreen() {
            @Override
            public void drawScreen(int mouseX, int mouseY, float partialTicks) {
                drawDefaultBackground();

                drawCenteredString(fontRendererObj, "Hello, please refrain from skidding, thanks -Kash", width / 2, height / 2, 0xFFFFFF);

                super.drawScreen(mouseX, mouseY, partialTicks);
            }
        });
    }

    public static void drawImage(ResourceLocation image, int x, int y, int width, int height) {
        OpenGlHelper.glBlendFunc(770, 771, 1, 0);
        GL11.glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
        Minecraft.getMinecraft().getTextureManager().bindTexture(image);
        Gui.drawModalRectWithCustomSizedTexture(x, y, 0.0f, 0.0f, width, height, width, height);
    }


    public static Vector3d project(double x, double y, double z) {
        FloatBuffer vector = GLAllocation.createDirectFloatBuffer(4);
        GL11.glGetFloat(2982, modelview);
        GL11.glGetFloat(2983, projection);
        GL11.glGetInteger(2978, viewport);
        if (GLU.gluProject((float)x, (float)y, (float)z, modelview, projection, viewport, vector)) {
            return new Vector3d(vector.get(0) / (float)new ScaledResolution(Minecraft.getMinecraft()).getScaleFactor(), ((float) Display.getHeight() - vector.get(1)) / (float)new ScaledResolution(Minecraft.getMinecraft()).getScaleFactor(), vector.get(2));
        }
        return null;
    }