fix: mixin issues

build.gradle

@@ -18,6 +18,7 @@ buildscript {
 
 apply plugin: 'forge'
 apply plugin: 'maven-publish'
+apply from: './gradle/scripts/mixins.gradle'
 
 sourceCompatibility = JavaVersion.VERSION_1_8
 targetCompatibility = JavaVersion.VERSION_1_8
@@ -121,4 +122,8 @@ publishing {
                 mavenLocal()
         }
     }
+}
+
+mixin {
+    mixinRefMapName = 'cwg.refmap.json'
 }

gradle/scripts/mixins.gradle

@@ -0,0 +1,78 @@
+abstract class MixinTask extends DefaultTask {
+
+    @Input
+    abstract Property<String> getMixinRefMapName()
+
+    private File mixinSrg
+    private File mixinRefMap
+
+    MixinTask() {
+        mixinRefMapName.convention("mixin.${project.name.replaceAll('[_\\-.]', '').toLowerCase()}.refmap.json")
+    }
+
+    @TaskAction
+    void action() {
+        def mixinDir = new File(project.buildDir, 'mixins')
+        if (!mixinDir.exists()) {
+            mixinDir.mkdirs()
+        }
+        def srgFile = new File(project.buildDir, 'srgs/mcp-srg.srg')
+        mixinSrg = new File(mixinDir, "${mixinRefMapName.get()}.srg")
+        mixinRefMap = new File(mixinDir, mixinRefMapName.get())
+
+        if (!mixinSrg.exists()) {
+            mixinSrg.createNewFile()
+        }
+
+        project.tasks.reobf.configure {
+            addExtraSrgFile mixinSrg
+        }
+
+        def compileJava = project.tasks.compileJava
+        compileJava.configure {
+            options.compilerArgs += [
+                    '-Xlint:-processing',
+                    "-AoutSrgFile=${mixinSrg.canonicalPath}",
+                    "-AoutRefMapFile=${mixinRefMap.canonicalPath}",
+                    "-AreobfSrgFile=${srgFile.canonicalPath}"
+            ]
+        }
+
+        project.tasks.jar.configure {
+            from mixinRefMap
+        }
+    }
+
+    @Internal
+    File getMixinSrg() {
+        return mixinSrg
+    }
+
+    @Internal
+    File getMixinRefMap() {
+        return mixinRefMap
+    }
+}
+
+tasks.register('mixin', MixinTask)
+
+task copySrgs(type: Copy, dependsOn: 'genSrgs') {
+    from plugins.getPlugin('forge').delayedFile('{SRG_DIR}')
+    include '**/*.srg'
+    into layout.buildDirectory.file('srgs')
+}
+
+compileJava.dependsOn(copySrgs, mixin)
+tasks.findByPath(":prepareKotlinBuildScriptModel")?.dependsOn(copySrgs, mixin)
+
+processResources {
+    afterEvaluate {
+        def refmap = tasks.mixin.mixinRefMapName.get()
+        inputs.property 'mixin_refmap', refmap
+        from(sourceSets.main.resources.srcDirs) {
+            include '*.json'
+            expand 'mixin_refmap': refmap
+            duplicatesStrategy = DuplicatesStrategy.INCLUDE
+        }
+    }
+}

src/main/java/dev/tilera/cwg/genlayer/GenLayerBiomeClassic.java

@@ -47,6 +47,8 @@ public class GenLayerBiomeClassic extends GenLayer {
            addedBiomes.add(BiomeGenBase.savanna);
            biomeEntries.add(new BiomeEntry(BiomeGenBase.savannaPlateau, 10));
            addedBiomes.add(BiomeGenBase.savannaPlateau);
+           biomeEntries.add(new BiomeEntry(BiomeGenBase.megaTaiga, 10));
+           addedBiomes.add(BiomeGenBase.megaTaiga);
         }
 
         for (BiomeType t : BiomeType.values()) {

src/main/java/dev/tilera/cwg/mixins/MixinBiomeGenBase.java

@@ -22,7 +22,7 @@ public abstract class MixinBiomeGenBase {
      * @author tilera
      * @reason No snow on hills
      */
-    @Overwrite(remap = false)
+    @Overwrite
     public final float getFloatTemperature(int p_150564_1_, int p_150564_2_, int p_150564_3_) {
         if (p_150564_2_ > 64 && Config.enableHeightSnow) {
            float f = (float)temperatureNoise.func_151601_a((double)p_150564_1_ * 1.0D / 8.0D, (double)p_150564_3_ * 1.0D / 8.0D) * 4.0F;