Migrate Carpet Mixin names to mojang mappings

src/main/java/carpet/mixins/MobMixin.java

@@ -0,0 +1,39 @@
+package carpet.mixins;
+
+import carpet.fakes.MobEntityInterface;
+import org.spongepowered.asm.mixin.Final;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Shadow;
+
+import java.util.HashMap;
+import java.util.Map;
+import net.minecraft.world.entity.Mob;
+import net.minecraft.world.entity.ai.goal.Goal;
+import net.minecraft.world.entity.ai.goal.GoalSelector;
+
+@Mixin(Mob.class)
+public abstract class MobMixin implements MobEntityInterface
+{
+    @Shadow @Final protected GoalSelector targetSelector;
+    @Shadow @Final protected GoalSelector goalSelector;
+    @Shadow private boolean persistenceRequired;
+    public final Map<String, Goal> temporaryTasks = new HashMap<>();
+
+    @Override
+    public GoalSelector getAI(boolean target)
+    {
+        return target?targetSelector:goalSelector;
+    }
+
+    @Override
+    public Map<String, Goal> getTemporaryTasks()
+    {
+        return temporaryTasks;
+    }
+
+    @Override
+    public void setPersistence(boolean what)
+    {
+        persistenceRequired = what;
+    }
+}