Use a mixin for the gamma boost feature

Fixes it being reset by the graphics settings screen, and doesn't need to modify the option

Signed-off-by: Username404-59 <w.iron.zombie@gmail.com>

common/src/main/java/fr/username404/snowygui/mixins/GammaMixin.java

@@ -0,0 +1,23 @@
+package fr.username404.snowygui.mixins;
+
+import com.llamalad7.mixinextras.injector.ModifyExpressionValue;
+import fr.username404.snowygui.gui.feature.GammaBoost;
+import net.minecraft.client.renderer.LightTexture;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+
+@Mixin(LightTexture.class)
+abstract class GammaMixin {
+    @ModifyExpressionValue(
+        method = "updateLightTexture(F)V", at = @At(
+            value = "INVOKE",
+            target = "Ljava/lang/Double;floatValue()F",
+            ordinal = 1
+        )
+    )
+    public float highGamma(float original) {
+        if (GammaBoost.INSTANCE.getToggled())
+            return GammaBoost.BOOST;
+        return original;
+    }
+}

common/src/main/kotlin/fr/username404/snowygui/gui/feature/GammaBoost.kt

@@ -1,19 +1,6 @@
 package fr.username404.snowygui.gui.feature
 
-import net.minecraft.client.Minecraft
-
 @ButtonInfo(Category.MISC)
 object GammaBoost: ButtonImpl() {
-    private const val boost = 1400.0
+    const val BOOST = 1400.0F
-    private var oldGamma = 0.0
-    override fun execAction() {
-        with(Minecraft.getInstance().options) {
-            val gamma = gamma().get()
-            gamma().value =
-                if (toggled) {
-                    if (gamma < boost) oldGamma = gamma
-                        boost
-                } else oldGamma
-        }
-    }
 }

common/src/main/resources/snowygui-common.mixins.json

@@ -2,7 +2,9 @@
   "required": true,
   "package": "fr.username404.snowygui.mixins",
   "compatibilityLevel": "JAVA_18",
-  "client": [],
+  "client": [
+    "GammaMixin"
+  ],
   "injectors": {
     "defaultRequire": 1
   },