Make vanilla golems immune to radiation similar to how the robit is immune to radiation (mekanism/Mekanism-Feature-Requests#608) This is done via a new radiation_immune tag

Author: pupnewfster

src/api/java/mekanism/api/MekanismAPI.java

@@ -34,7 +34,7 @@ private MekanismAPI() {
     /**
      * The version of the api classes - may not always match the mod's version
      */
-    public static final String API_VERSION = "10.6.2";
+    public static final String API_VERSION = "10.6.3";
     /**
      * Mekanism's Mod ID
      */

src/api/java/mekanism/api/MekanismAPITags.java

@@ -10,6 +10,7 @@
 import net.minecraft.tags.TagKey;
 import net.minecraft.world.damagesource.DamageType;
 import net.minecraft.world.effect.MobEffect;
+import net.minecraft.world.entity.EntityType;
 
 /**
  * Provides access to pre-existing tag keys for various functionality that we use tags for.
@@ -163,4 +164,30 @@ private static TagKey<DamageType> tag(String name) {
             return TagKey.create(Registries.DAMAGE_TYPE, rl(name));
         }
     }
+
+    /**
+     * @since 10.6.3
+     */
+    public static class Entities {
+
+        private Entities() {
+        }
+
+        /**
+         * Represents any entity type that is immune to all Radiation.
+         */
+        public static final TagKey<EntityType<?>> RADIATION_IMMUNE = commonTag("radiation_immune");
+        /**
+         * Represents any entity type that is immune to Mekanism Radiation.
+         */
+        public static final TagKey<EntityType<?>> MEK_RADIATION_IMMUNE = tag("radiation_immune");
+
+        private static TagKey<EntityType<?>> commonTag(String name) {
+            return TagKey.create(Registries.ENTITY_TYPE, ResourceLocation.fromNamespaceAndPath("c", name));
+        }
+
+        private static TagKey<EntityType<?>> tag(String name) {
+            return TagKey.create(Registries.ENTITY_TYPE, rl(name));
+        }
+    }
 }

src/datagen/generated/mekanism/.cache/f4271571320fe007f5d8ba9eb4461ed6922f6a93

@@ -39,6 +39,7 @@
 import net.minecraft.tags.ItemTags;
 import net.minecraft.tags.TagKey;
 import net.minecraft.world.damagesource.DamageTypes;
+import net.minecraft.world.entity.EntityType;
 import net.minecraft.world.item.DyeColor;
 import net.minecraft.world.item.Item;
 import net.minecraft.world.item.Items;
@@ -140,6 +141,12 @@ private void addEntities() {
         addEntitiesToTag(EntityTypeTags.IMPACT_PROJECTILES, MekanismEntityTypes.FLAME);
         addEntitiesToTag(PVI_COMPAT, MekanismEntityTypes.ROBIT);
 
+        addEntitiesToTag(MekanismAPITags.Entities.RADIATION_IMMUNE, MekanismEntityTypes.ROBIT);
+        getEntityTypeBuilder(MekanismAPITags.Entities.MEK_RADIATION_IMMUNE).add(MekanismAPITags.Entities.RADIATION_IMMUNE).add(
+              EntityType.IRON_GOLEM,
+              EntityType.SNOW_GOLEM
+        );
+
         addEntitiesToTag(EntityTypeTags.POWDER_SNOW_WALKABLE_MOBS, MekanismEntityTypes.ROBIT);
         addEntitiesToTag(EntityTypeTags.FREEZE_IMMUNE_ENTITY_TYPES, MekanismEntityTypes.ROBIT);
         addEntitiesToTag(EntityTypeTags.CAN_BREATHE_UNDER_WATER, MekanismEntityTypes.ROBIT);
@@ -517,9 +524,9 @@ private void addDamageTypes() {
         getDamageTypeBuilder(MekanismAPITags.DamageTypes.IS_PREVENTABLE_MAGIC).add(DamageTypes.MAGIC, DamageTypes.INDIRECT_MAGIC);
 
         addToTag(MekanismAPITags.DamageTypes.MEKASUIT_ALWAYS_SUPPORTED, DamageTypes.FALLING_ANVIL, DamageTypes.CACTUS, DamageTypes.CRAMMING,
-                DamageTypes.DRAGON_BREATH, DamageTypes.DRY_OUT, DamageTypes.FALL, DamageTypes.FALLING_BLOCK, DamageTypes.FLY_INTO_WALL, DamageTypes.GENERIC,
-                DamageTypes.HOT_FLOOR, DamageTypes.IN_FIRE, DamageTypes.IN_WALL, DamageTypes.LAVA, DamageTypes.LIGHTNING_BOLT, DamageTypes.ON_FIRE,
-                DamageTypes.SWEET_BERRY_BUSH, DamageTypes.WITHER, DamageTypes.FREEZE, DamageTypes.FALLING_STALACTITE, DamageTypes.STALAGMITE, DamageTypes.SONIC_BOOM);
+              DamageTypes.DRAGON_BREATH, DamageTypes.DRY_OUT, DamageTypes.FALL, DamageTypes.FALLING_BLOCK, DamageTypes.FLY_INTO_WALL, DamageTypes.GENERIC,
+              DamageTypes.HOT_FLOOR, DamageTypes.IN_FIRE, DamageTypes.IN_WALL, DamageTypes.LAVA, DamageTypes.LIGHTNING_BOLT, DamageTypes.ON_FIRE,
+              DamageTypes.SWEET_BERRY_BUSH, DamageTypes.WITHER, DamageTypes.FREEZE, DamageTypes.FALLING_STALACTITE, DamageTypes.STALAGMITE, DamageTypes.SONIC_BOOM);
     }
 
     private void addFluids() {

src/datagen/generated/mekanism/data/c/tags/entity_type/radiation_immune.json

@@ -27,6 +27,7 @@
 import mekanism.common.item.interfaces.IJetpackItem;
 import mekanism.common.item.interfaces.IJetpackItem.JetpackMode;
 import mekanism.common.lib.radiation.RadiationManager;
+import mekanism.common.registries.MekanismDamageTypes;
 import mekanism.common.registries.MekanismGameEvents;
 import mekanism.common.registries.MekanismModules;
 import mekanism.common.util.ChemicalUtil;
@@ -48,6 +49,7 @@
 import net.neoforged.bus.api.SubscribeEvent;
 import net.neoforged.neoforge.common.NeoForgeMod;
 import net.neoforged.neoforge.common.damagesource.DamageContainer;
+import net.neoforged.neoforge.event.entity.EntityInvulnerabilityCheckEvent;
 import net.neoforged.neoforge.event.entity.living.LivingEvent.LivingJumpEvent;
 import net.neoforged.neoforge.event.entity.living.LivingFallEvent;
 import net.neoforged.neoforge.event.entity.living.LivingIncomingDamageEvent;
@@ -159,6 +161,16 @@ public static boolean isGravitationalModulationOn(Player player) {
         return ModuleGravitationalModulatingUnit.shouldProcess(player) && isGravitationalModulationReady(player.getItemBySlot(EquipmentSlot.CHEST));
     }
 
+    @SubscribeEvent
+    public void checkEntityInvulnerability(EntityInvulnerabilityCheckEvent event) {
+        if (!event.isInvulnerable() && event.getEntity() instanceof LivingEntity entity) {
+            if (event.getSource().is(MekanismDamageTypes.RADIATION.key())) {
+                //Note: As we only enter this block if it isn't invulnerable, there is no chance that this call makes it go from invulnerable to not
+                event.setInvulnerable(entity.getType().is(MekanismAPITags.Entities.MEK_RADIATION_IMMUNE));
+            }
+        }
+    }
+
     @SubscribeEvent
     @SuppressWarnings("UnstableApiUsage")//Note: DamageContainer isn't actually unstable, they just forgot to unmark it before finalizing the PR
     public void onEntityAttacked(LivingIncomingDamageEvent event) {

src/datagen/generated/mekanism/data/mekanism/tags/entity_type/radiation_immune.json

@@ -66,7 +66,6 @@
 import mekanism.common.recipe.lookup.cache.InputRecipeCache.SingleItem;
 import mekanism.common.recipe.lookup.monitor.RecipeCacheLookupMonitor;
 import mekanism.common.registries.MekanismContainerTypes;
-import mekanism.common.registries.MekanismDamageTypes;
 import mekanism.common.registries.MekanismDataComponents;
 import mekanism.common.registries.MekanismDataSerializers;
 import mekanism.common.registries.MekanismEntityTypes;
@@ -101,7 +100,6 @@
 import net.minecraft.world.InteractionHand;
 import net.minecraft.world.InteractionResult;
 import net.minecraft.world.MenuProvider;
-import net.minecraft.world.damagesource.DamageSource;
 import net.minecraft.world.entity.EntityType;
 import net.minecraft.world.entity.Mob;
 import net.minecraft.world.entity.PathfinderMob;
@@ -522,11 +520,6 @@ public void readAdditionalSaveData(@NotNull CompoundTag nbtTags) {
               () -> setSkin(MekanismRobitSkins.BASE, null));
     }
 
-    @Override
-    public boolean isInvulnerableTo(@NotNull DamageSource source) {
-        return source.is(MekanismDamageTypes.RADIATION.key()) || super.isInvulnerableTo(source);
-    }
-
     @Override
     @SuppressWarnings("UnstableApiUsage")//Note: DamageContainer isn't actually unstable, they just forgot to unmark it before finalizing the PR
     public void onDamageTaken(@NotNull DamageContainer damageContainer) {