proguard can just ignore GL14 reference actually

scripts/proguard.pro

@@ -12,6 +12,9 @@
 -flattenpackagehierarchy
 -repackageclasses 'baritone'
 
+# lwjgl is weird
+-dontwarn org.lwjgl.opengl.GL14
+
 -keep class baritone.api.** { *; } # this is the keep api
 
 # service provider needs these class names

src/launch/java/baritone/launch/mixins/MixinChunkRenderContainer.java

@@ -18,11 +18,11 @@
 package baritone.launch.mixins;
 
 import baritone.Baritone;
-import baritone.utils.LeijurvUtils;
 import net.minecraft.client.Minecraft;
 import net.minecraft.client.renderer.ChunkRenderContainer;
 import net.minecraft.client.renderer.GlStateManager;
 import net.minecraft.client.renderer.chunk.RenderChunk;
+import org.lwjgl.opengl.GL14;
 import org.spongepowered.asm.mixin.Mixin;
 import org.spongepowered.asm.mixin.injection.At;
 import org.spongepowered.asm.mixin.injection.Inject;
@@ -42,7 +42,7 @@ public class MixinChunkRenderContainer {
             if (Minecraft.getMinecraft().world.getChunk(renderChunkIn.getPosition()).isEmpty()) {
                 GlStateManager.enableAlpha();
                 GlStateManager.enableBlend();
-                LeijurvUtils.updateAndGet().run();
+                GL14.glBlendColor(0, 0, 0, Baritone.settings().cachedChunksOpacity.get());
                 GlStateManager.tryBlendFuncSeparate(GL_CONSTANT_ALPHA, GL_ONE_MINUS_CONSTANT_ALPHA, GL_ONE, GL_ZERO);
             } else {
                 GlStateManager.tryBlendFuncSeparate(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, GL_ONE, GL_ZERO);

src/main/java/baritone/utils/LeijurvUtils.java

@@ -1,85 +0,0 @@
-/*
- * This file is part of Baritone.
- *
- * Baritone is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * Baritone is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
- */
-
-package baritone.utils;
-
-import baritone.Baritone;
-import org.lwjgl.opengl.GL14;
-
-import java.lang.invoke.LambdaMetafactory;
-import java.lang.invoke.MethodHandle;
-import java.lang.invoke.MethodHandles;
-import java.lang.invoke.MethodType;
-
-/**
- * Is your name Leijurv and you have a severe handicap for X? Well, no worries! This class has YOU covered!
- *
- * @author Brady
- * @since 1/30/2019
- */
-public class LeijurvUtils {
-
-    private static final MethodHandles.Lookup LOOKUP = MethodHandles.lookup();
-
-    private static Runnable glBlendColorChunkOwnage = null;
-    private static float existingAlpha;
-
-    public static Runnable updateAndGet() {
-        float currentAlpha = Baritone.settings().cachedChunksOpacity.get();
-        if (glBlendColorChunkOwnage == null || existingAlpha != currentAlpha) {
-            glBlendColorChunkOwnage = createBlendColorRunnable(1, 1, 1, existingAlpha = currentAlpha);
-        }
-        return glBlendColorChunkOwnage;
-    }
-
-    /**
-     * Hahhahaha
-     * WHY???? you may ask. well:
-     *
-     * basically proguard sucks (actually the gradle automated setup for it does) and I'm too
-     * lazy to actually make it work. (It is unable to recognize the GL14 class). This is an
-     * AWESOME workaround by creating a runnable for the {@code glBlendColor} method without having
-     * to directly reference the method itself with the added bonus of pre-filling the invocation arguments.
-     *
-     * @param r red
-     * @param g green
-     * @param b blue
-     * @param a alpha
-     * @return Epic runnable that calls {@link GL14#glBlendColor(float, float, float, float)}
-     */
-    public static Runnable createBlendColorRunnable(float r, float g, float b, float a) {
-        try {
-            MethodHandle glBlendColor = LOOKUP.findStatic(
-                    Class.forName("org.lwjgl.opengl.GL14"),
-                    "glBlendColor",
-                    MethodType.methodType(Void.TYPE, Float.TYPE, Float.TYPE, Float.TYPE, Float.TYPE)
-            );
-
-            // noinspection unchecked
-            return (Runnable) LambdaMetafactory.metafactory(
-                    LOOKUP,
-                    "run",
-                    glBlendColor.type().changeReturnType(Runnable.class),
-                    MethodType.methodType(Void.TYPE),
-                    glBlendColor,
-                    MethodType.methodType(Void.TYPE)
-            ).dynamicInvoker().invoke(r, g, b, a);
-        } catch (Throwable e) {
-            throw new RuntimeException(e);
-        }
-    }
-}