restored timer on the villager

src/main/java/carpet/fakes/BrainInterface.java

@@ -0,0 +1,12 @@
+package carpet.fakes;
+
+import net.minecraft.entity.ai.brain.Memory;
+import net.minecraft.entity.ai.brain.MemoryModuleType;
+
+import java.util.Map;
+import java.util.Optional;
+
+public interface BrainInterface
+{
+    Map<MemoryModuleType<?>, Optional<? extends Memory<?>>> getMobMemories();
+}

src/main/java/carpet/mixins/Brain_Mixin.java

@@ -0,0 +1,25 @@
+package carpet.mixins;
+
+import carpet.fakes.BrainInterface;
+import net.minecraft.entity.ai.brain.Brain;
+import net.minecraft.entity.ai.brain.Memory;
+import net.minecraft.entity.ai.brain.MemoryModuleType;
+import org.spongepowered.asm.mixin.Final;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Shadow;
+
+import java.util.Map;
+import java.util.Optional;
+
+@Mixin(Brain.class)
+public class Brain_Mixin implements BrainInterface
+{
+
+    @Shadow @Final private Map<MemoryModuleType<?>, Optional<? extends Memory<?>>> memories;
+
+    @Override
+    public Map<MemoryModuleType<?>, Optional<? extends Memory<?>>> getMobMemories()
+    {
+        return memories;
+    }
+}

src/main/java/carpet/mixins/VillagerEntity_aiMixin.java

@@ -1,12 +1,12 @@
 package carpet.mixins;
 
+import carpet.fakes.BrainInterface;
 import carpet.helpers.ParticleDisplay;
 import carpet.utils.Messenger;
 import carpet.utils.MobAI;
-import net.minecraft.entity.Entity;
-import net.minecraft.entity.EntityInteraction;
 import net.minecraft.entity.EntityType;
 import net.minecraft.entity.ai.brain.Activity;
+import net.minecraft.entity.ai.brain.Memory;
 import net.minecraft.entity.ai.brain.MemoryModuleType;
 import net.minecraft.entity.ai.pathing.Path;
 import net.minecraft.entity.passive.AbstractTraderEntity;
@@ -62,13 +62,15 @@ public abstract class VillagerEntity_aiMixin extends AbstractTraderEntity
         if (MobAI.isTracking(this, MobAI.TrackingType.IRON_GOLEM_SPAWNING))
         {
             long time;
-            Optional<Boolean> optional_1 = this.brain.getOptionalMemory(MemoryModuleType.GOLEM_DETECTED_RECENTLY);
-            if (!optional_1.isPresent()) {
+            Optional<? extends Memory<?>> last_seen = ((BrainInterface)this.brain).getMobMemories().get(MemoryModuleType.GOLEM_DETECTED_RECENTLY);
+            if (!last_seen.isPresent())
+            {
                 time = 0;
-            } else {
-                //Long long_2 = optional_1.get(); #TODO fixme need last seen golem time.
-                //time = long_2+600 - getEntityWorld().getTime();
-                time = 600;
+            }
+            else
+            {
+                String serialized = last_seen.get().toString();
+                time = Integer.parseInt(serialized.substring(11, serialized.length()-1));
             }
             boolean recentlySeen = time > 0;
             Optional<Long> optional_11 = this.brain.getOptionalMemory(MemoryModuleType.LAST_SLEPT);

src/main/resources/carpet.mixins.json

@@ -55,6 +55,7 @@
     "EntityTrackerEntry_leashFixMixin",
 
     "VillagerEntity_aiMixin",
+    "Brain_Mixin",
 
     "ServerWorld_fakePlayersMixin",
     "ThrownEnderpearlEntity_fakePlayersMixin",