build.gradle

@@ -3,6 +3,7 @@ plugins {
     id 'maven-publish'
     id 'net.minecraftforge.gradle' version '6.0.+'
     id 'org.parchmentmc.librarian.forgegradle' version '1.+'
+    id 'org.spongepowered.mixin' version '0.7.+'
 }
 
 wrapper {
@@ -151,6 +152,8 @@ dependencies {
     // The userdev artifact is a special name and will get all sorts of transformations applied to it.
     minecraft "net.minecraftforge:forge:${minecraft_version}-${forge_version}"
 
+    annotationProcessor 'org.spongepowered:mixin:0.8.5:processor'
+
     // compile against the JEI API but do not include it at runtime
     compileOnly(fg.deobf("mezz.jei:jei-${minecraft_version}-common-api:${jei_version}"))
     compileOnly(fg.deobf("mezz.jei:jei-${minecraft_version}-forge-api:${jei_version}"))
@@ -164,6 +167,15 @@ dependencies {
     runtimeOnly(fg.deobf("mekanism:Mekanism:${minecraft_version}-${mekanism_version}"))
 }
 
+mixin {
+    // MixinGradle Settings
+    add sourceSets.main, "mixins.${mod_id}.refmap.json"
+    config "mixins.${mod_id}.json"
+
+    debug.verbose = true
+    debug.export = true
+}
+
 // This task will expand all declared properties from Gradle (gradle.properties) in the specified resource targets.
 // Properties are expanded using `${}` Groovy notation.
 tasks.named('processResources', ProcessResources).configure {

src/main/java/net/banutama/utamacraft/mixin/EntityMixin.java

@@ -0,0 +1,20 @@
+package net.banutama.utamacraft.mixin;
+
+import com.mojang.logging.LogUtils;
+import net.minecraft.world.damagesource.DamageSource;
+import net.minecraft.world.entity.Entity;
+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.CallbackInfoReturnable;
+
+@Mixin(Entity.class)
+public class EntityMixin {
+    @Inject(at = @At("HEAD"), method = "isInvulnerableTo", cancellable = true)
+    private void checkInvulnerabilities(DamageSource source, CallbackInfoReturnable<Boolean> cir) {
+        LogUtils.getLogger().info("DamageSource is fire");
+        if (source.isFire()) {
+            LogUtils.getLogger().info("DamageSource is fire");
+        }
+    }
+}

src/main/resources/mixins.utamacraft.json

@@ -0,0 +1,15 @@
+{
+  "required": true,
+  "minVersion": "0.8",
+  "package": "net.banutama.utamacraft.mixin",
+  "compatibilityLevel": "JAVA_17",
+  "mixins": [
+    "EntityMixin"
+  ],
+  "client": [
+  ],
+  "injectors": {
+    "defaultRequire": 1
+  },
+  "refmap": "utamacraft.refmap.json"
+}