Add 1.20.3

.gitignore

@@ -42,4 +42,5 @@ bin/
 ### Mac OS ###
 .DS_Store
 build-data.txt
-run/
+run/
+.assetsroot

build.gradle.kts

@@ -26,7 +26,8 @@ labyMod {
             "1.19.3",
             "1.19.4",
             "1.20.1",
-            "1.20.2"
+            "1.20.2",
+            "1.20.3"
     ) { version, provider ->
       configureRun(provider, version)
     }

game-runner/src/v1_20_3/java/org/burgerbude/labymod/addons/fullbright/v1_20_3/mixins/MixinLightTexture.java

@@ -0,0 +1,76 @@
+/*
+ * Copyright (C) 2022 BurgerbudeORG & Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package org.burgerbude.labymod.addons.fullbright.v1_20_3.mixins;
+
+import com.mojang.blaze3d.platform.NativeImage;
+import net.labymod.api.Laby;
+import net.minecraft.client.renderer.LightTexture;
+import net.minecraft.client.renderer.texture.DynamicTexture;
+import org.burgerbude.labymod.addons.fullbright.core.event.UpdateLightmapTextureEvent;
+import org.spongepowered.asm.mixin.Final;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Shadow;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+@Mixin(LightTexture.class)
+public class MixinLightTexture {
+
+  @Shadow
+  @Final
+  private NativeImage lightPixels;
+
+  @Shadow
+  @Final
+  private DynamicTexture lightTexture;
+  @Shadow
+  private boolean updateLightTexture;
+  private boolean fullbright$updated = false;
+
+  @Inject(method = "updateLightTexture", at = @At("HEAD"), cancellable = true)
+  private void fullbright$updateLightTexture(float v, CallbackInfo ci) {
+    final var event = Laby.fireEvent(new UpdateLightmapTextureEvent());
+    if (event.isCancelled()) {
+      if (!this.fullbright$updated) {
+        this.fullbright$writeWhiteTexture();
+      }
+      this.fullbright$updated = true;
+      this.lightTexture.upload();
+      ci.cancel();
+      return;
+    }
+
+    // Is need for the singleplayer, if the user is in a screen,
+    // the tick method is not called and therefore the light level is not updated
+    if (this.fullbright$updated) {
+      this.updateLightTexture = true;
+    }
+
+    this.fullbright$updated = false;
+  }
+
+  private void fullbright$writeWhiteTexture() {
+    for (int x = 0; x < 16; x++) {
+      for (int y = 0; y < 16; y++) {
+        this.lightPixels.setPixelRGBA(x, y, 0xFFFFFFFF);
+      }
+    }
+  }
+
+}