Option to increase fog radius when in the Crimson Isles (#856)

* Add option to increase fog radius when in the Crimson Isles

src/main/java/de/hysky/skyblocker/config/categories/CrimsonIsleCategory.java

@@ -143,6 +143,16 @@ public static ConfigCategory create(SkyblockerConfig defaults, SkyblockerConfig
 								.build())
 						.build())
 
+				// Extend nether fog
+				.option(Option.<Boolean>createBuilder()
+						.name(Text.translatable("skyblocker.config.crimsonIsle.extendNetherFog"))
+						.description(OptionDescription.of(Text.translatable("skyblocker.config.crimsonIsle.extendNetherFog.@Tooltip")))
+						.binding(config.crimsonIsle.extendNetherFog,
+								() -> config.crimsonIsle.extendNetherFog,
+								newValue -> config.crimsonIsle.extendNetherFog = newValue)
+						.controller(ConfigUtils::createBooleanController)
+						.build())
+
 				.build();
     }
 }

src/main/java/de/hysky/skyblocker/config/configs/CrimsonIsleConfig.java

@@ -10,6 +10,9 @@ public class CrimsonIsleConfig {
     @SerialEntry
     public Dojo dojo = new Dojo();
 
+    @SerialEntry
+    public boolean extendNetherFog = true;
+
 
     public static class Kuudra {
         @SerialEntry

src/main/java/de/hysky/skyblocker/mixins/BackgroundRendererMixin.java

@@ -0,0 +1,42 @@
+package de.hysky.skyblocker.mixins;
+
+import com.llamalad7.mixinextras.sugar.Local;
+import com.mojang.blaze3d.systems.RenderSystem;
+import de.hysky.skyblocker.config.SkyblockerConfigManager;
+import de.hysky.skyblocker.config.configs.CrimsonIsleConfig;
+import de.hysky.skyblocker.utils.Utils;
+import net.minecraft.block.enums.CameraSubmersionType;
+import net.minecraft.client.render.BackgroundRenderer;
+import net.minecraft.client.render.Camera;
+import net.minecraft.client.render.FogShape;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+@Mixin(BackgroundRenderer.class)
+public abstract class BackgroundRendererMixin {
+
+    /**
+     * Moves fog farther away from the player when in the crimson isles.
+     * This sets it to be the same distance as what you would see in the overworld (every other skyblock island)
+     */
+    @Inject(method = "applyFog", at = @At("RETURN"))
+    private static void applyFogModifyDistance(CallbackInfo ci, @Local(argsOnly = true) Camera camera, @Local(argsOnly = true) BackgroundRenderer.FogType fogType, @Local(argsOnly = true, ordinal = 0) float viewDistance, @Local(argsOnly = true) boolean thickFog) {
+        final CameraSubmersionType cameraSubmersionType = camera.getSubmersionType();
+        CrimsonIsleConfig config = SkyblockerConfigManager.get().crimsonIsle;
+
+        if (Utils.isOnSkyblock() && config.extendNetherFog && cameraSubmersionType == CameraSubmersionType.NONE && thickFog) {
+            float start;
+            if (fogType == BackgroundRenderer.FogType.FOG_SKY) {
+                start = 0.0f;
+            } else {
+                start = viewDistance - Math.clamp(viewDistance / 10.0f, 4.0f, 64.0f);
+            }
+
+            RenderSystem.setShaderFogStart(start);
+            RenderSystem.setShaderFogEnd(viewDistance);
+            RenderSystem.setShaderFogShape(FogShape.CYLINDER);
+        }
+    }
+}

src/main/resources/assets/skyblocker/lang/en_us.json

@@ -36,6 +36,9 @@
 
   "skyblocker.config.crimsonIsle": "Crimson Isle",
 
+  "skyblocker.config.crimsonIsle.extendNetherFog": "Extend Nether Fog",
+  "skyblocker.config.crimsonIsle.extendNetherFog.@Tooltip": "When in the Crimson Isle, prevents fog from appearing closer to the player as it does in vanilla nether biomes.",
+
   "skyblocker.config.crimsonIsle.kuudra": "Kuudra",
 
   "skyblocker.config.crimsonIsle.kuudra.arrowPoisonThreshold": "Arrow Poison Warning Threshold",

src/main/resources/skyblocker.mixins.json

@@ -5,6 +5,7 @@
   "compatibilityLevel": "JAVA_21",
   "client": [
     "AbstractInventoryScreenMixin",
+    "BackgroundRendererMixin",
     "BatEntityMixin",
     "ClientPlayerEntityMixin",
     "ClientPlayNetworkHandlerMixin",