Add patches to enable MobEffects with IDs > 255 (#8380)

src/main/java/net/minecraftforge/common/ForgeHooks.java

@@ -25,6 +25,7 @@ import java.util.function.Supplier;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
+import com.google.common.base.Strings;
 import com.google.common.base.Suppliers;
 import com.google.common.collect.Lists;
 import com.google.common.collect.Multimap;
@@ -45,10 +46,12 @@ import javax.annotation.Nonnull;
 import javax.annotation.Nullable;
 
 import it.unimi.dsi.fastutil.longs.LongSet;
+import net.minecraft.ResourceLocationException;
 import net.minecraft.advancements.Advancement;
 import net.minecraft.core.*;
 import net.minecraft.tags.BlockTags;
 import net.minecraft.tags.TagKey;
+import net.minecraft.world.effect.MobEffect;
 import net.minecraft.world.entity.ai.attributes.Attribute;
 import net.minecraft.world.entity.ai.attributes.AttributeModifier;
 import net.minecraft.world.entity.ai.attributes.AttributeSupplier;
@@ -1401,4 +1404,32 @@ public class ForgeHooks
             LOGGER.error(WORLDPERSISTENCE, buf.toString());
         }
     }
+
+    public static void saveMobEffect(CompoundTag nbt, String key, MobEffect effect)
+    {
+        var registryName = effect.getRegistryName();
+        if (registryName != null)
+        {
+            nbt.putString(key, registryName.toString());
+        }
+    }
+
+    @Nullable
+    public static MobEffect loadMobEffect(CompoundTag nbt, String key, @Nullable MobEffect fallback)
+    {
+        var registryName = nbt.getString(key);
+        if (Strings.isNullOrEmpty(registryName))
+        {
+            return fallback;
+        }
+        try
+        {
+            return ForgeRegistries.MOB_EFFECTS.getValue(new ResourceLocation(registryName));
+        }
+        catch (ResourceLocationException e)
+        {
+            return fallback;
+        }
+    }
+
 }