Mixin to disable lightmap on font renderer when needed.

Author: MartinSVK12

src/main/java/sunsetsatellite/catalyst/core/mixin/FontRendererMixin.java

@@ -0,0 +1,54 @@
+package sunsetsatellite.catalyst.core.mixin;
+
+import net.minecraft.client.render.FontRenderer;
+import net.minecraft.client.render.LightmapHelper;
+import net.minecraft.client.render.tessellator.Tessellator;
+import org.lwjgl.opengl.GL11;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Unique;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
+import sunsetsatellite.catalyst.core.util.IColorOverride;
+import sunsetsatellite.catalyst.core.util.Vec4f;
+
+@Mixin(value = FontRenderer.class,remap = false)
+public class FontRendererMixin implements IColorOverride {
+
+	@Unique
+	private Vec4f colorOverride = new Vec4f(1);
+	@Unique
+	private boolean fullbright = false;
+
+	@Inject(method = "renderStringAtPos",at = @At(value = "INVOKE", target = "Lnet/minecraft/client/render/tessellator/Tessellator;startDrawingQuads()V",shift = At.Shift.AFTER))
+	public void disableLightmap(String text, boolean flag, CallbackInfo ci){
+		GL11.glColor4d(colorOverride.x,colorOverride.y,colorOverride.z,colorOverride.w);
+		if(LightmapHelper.isLightmapEnabled() && fullbright) Tessellator.instance.setLightmapCoord(LightmapHelper.getLightmapCoord(15,15));
+	}
+
+	@Inject(method = "renderDefaultChar",at = @At(value = "INVOKE", target = "Lorg/lwjgl/opengl/GL11;glBegin(I)V",shift = At.Shift.BEFORE))
+	public void disableLightmap2(char c, boolean italic, CallbackInfoReturnable<Float> cir){
+		if(LightmapHelper.isLightmapEnabled() && fullbright) LightmapHelper.setLightmapCoord(15,15);
+	}
+
+	@Inject(method = "renderUnicodeChar",at = @At(value = "INVOKE", target = "Lorg/lwjgl/opengl/GL11;glBegin(I)V",shift = At.Shift.BEFORE))
+	public void disableLightmap3(char c, boolean italic, CallbackInfoReturnable<Float> cir){
+		if(LightmapHelper.isLightmapEnabled() && fullbright) LightmapHelper.setLightmapCoord(15,15);
+	}
+
+	@Override
+	public void overrideColor(float r, float g, float b, float alpha) {
+		colorOverride = new Vec4f(r,g,b,alpha);
+	}
+
+	@Override
+	public void enableFullbright() {
+		fullbright = true;
+	}
+
+	@Override
+	public void disableFullbright() {
+		fullbright = false;
+	}
+}

src/main/java/sunsetsatellite/catalyst/core/mixin/ItemModelStandardMixin.java

@@ -1,11 +1,14 @@
 package sunsetsatellite.catalyst.core.mixin;
 
+import net.minecraft.client.render.FontRenderer;
 import net.minecraft.client.render.LightmapHelper;
+import net.minecraft.client.render.RenderEngine;
 import net.minecraft.client.render.item.model.ItemModel;
 import net.minecraft.client.render.item.model.ItemModelStandard;
 import net.minecraft.client.render.stitcher.IconCoordinate;
 import net.minecraft.client.render.tessellator.Tessellator;
 import net.minecraft.core.item.Item;
+import net.minecraft.core.item.ItemStack;
 import org.lwjgl.opengl.GL11;
 import org.spongepowered.asm.mixin.Mixin;
 import org.spongepowered.asm.mixin.Unique;

src/main/resources/catalyst.mixins.json

@@ -8,6 +8,7 @@
     "EntityPlayerMixin",
     "EntityPlayerMPMixin",
     "EntityPlayerSPMixin",
+    "FontRendererMixin",
     "GuiTooltipMixin",
     "ItemModelStandardMixin",
     "NetClientHandlerMixin"