make PotionEffectType Taggable

Author: MrHell228

SpongeAPI

@@ -25,15 +25,25 @@
 package org.spongepowered.common.mixin.api.minecraft.world.effect;
 
 import net.kyori.adventure.text.Component;
+import net.minecraft.core.Holder;
+import net.minecraft.core.Registry;
+import net.minecraft.core.registries.Registries;
+import net.minecraft.tags.TagKey;
 import net.minecraft.world.effect.MobEffect;
 import org.spongepowered.api.effect.potion.PotionEffectType;
+import org.spongepowered.api.registry.DefaultedRegistryType;
+import org.spongepowered.api.registry.RegistryTypes;
+import org.spongepowered.api.tag.Tag;
 import org.spongepowered.asm.mixin.Implements;
 import org.spongepowered.asm.mixin.Interface;
 import org.spongepowered.asm.mixin.Interface.Remap;
 import org.spongepowered.asm.mixin.Mixin;
 import org.spongepowered.asm.mixin.Shadow;
+import org.spongepowered.common.SpongeCommon;
 import org.spongepowered.common.adventure.SpongeAdventure;
 
+import java.util.Collection;
+
 @Mixin(MobEffect.class)
 @Implements(@Interface(iface = PotionEffectType.class, prefix = "potionEffectType$", remap = Remap.NONE))
 public abstract class MobEffectMixin_API implements PotionEffectType {
@@ -51,4 +61,21 @@ public abstract class MobEffectMixin_API implements PotionEffectType {
     public Component asComponent() {
         return SpongeAdventure.asAdventure(this.shadow$getDisplayName());
     }
+
+    @Override
+    public DefaultedRegistryType<PotionEffectType> registryType() {
+        return RegistryTypes.POTION_EFFECT_TYPE;
+    }
+
+    @Override
+    public Collection<Tag<PotionEffectType>> tags() {
+        return this.registryType().get().tags().filter(this::is).toList();
+    }
+
+    @Override
+    public boolean is(final Tag<PotionEffectType> tag) {
+        final Registry<MobEffect> registry = SpongeCommon.vanillaRegistry(Registries.MOB_EFFECT);
+        final Holder.Reference<MobEffect> holder = registry.createIntrusiveHolder((MobEffect) (Object) this);
+        return holder.is(((TagKey<MobEffect>) (Object) tag));
+    }
 }