added renewableSponges mixins

src/main/java/carpet/mixins/GuardianEntityMixin.java

@@ -0,0 +1,48 @@
+package carpet.mixins;
+
+import carpet.CarpetSettings;
+import net.minecraft.entity.EntityData;
+import net.minecraft.entity.EntityType;
+import net.minecraft.entity.LightningEntity;
+import net.minecraft.entity.SpawnType;
+import net.minecraft.entity.mob.ElderGuardianEntity;
+import net.minecraft.entity.mob.GuardianEntity;
+import net.minecraft.entity.mob.HostileEntity;
+import net.minecraft.nbt.CompoundTag;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.world.World;
+import org.spongepowered.asm.mixin.Mixin;
+
+@Mixin(GuardianEntity.class)
+public abstract class GuardianEntityMixin extends HostileEntity
+{
+    protected GuardianEntityMixin(EntityType<? extends HostileEntity> entityType_1, World world_1)
+    {
+        super(entityType_1, world_1);
+    }
+    
+    @Override
+    public void onStruckByLightning(LightningEntity lightning)
+    {
+        if (!this.world.isClient && !this.removed && CarpetSettings.getBool("renewableSponges"))
+        {
+            ElderGuardianEntity elderGuardian = new ElderGuardianEntity(EntityType.ELDER_GUARDIAN ,this.world);
+            elderGuardian.setPositionAndAngles(this.x, this.y, this.z, this.yaw, this.pitch);
+            elderGuardian.initialize(this.world ,this.world.getLocalDifficulty(new BlockPos(elderGuardian)), SpawnType.EVENT, (EntityData)null, (CompoundTag)null);
+            elderGuardian.setAiDisabled(this.isAiDisabled());
+            
+            if (this.hasCustomName())
+            {
+                elderGuardian.setCustomName(this.getCustomName());
+                elderGuardian.setCustomNameVisible(this.isCustomNameVisible());
+            }
+            
+            this.world.spawnEntity(elderGuardian);
+            this.remove();
+        }
+        else
+        {
+            super.onStruckByLightning(lightning);
+        }
+    }
+}