Flying unit patrol

core/src/io/anuke/mindustry/entities/bullet/BulletType.java

@@ -78,7 +78,7 @@ public abstract class BulletType extends Content implements BaseBulletType<Bulle
 
     @Override
     public float hitSize(){
-        return hitSize();
+        return hitsize;
     }
 
     @Override

core/src/io/anuke/mindustry/entities/units/FlyingUnit.java

@@ -82,7 +82,10 @@ public abstract class FlyingUnit extends BaseUnit implements CarryTrait{
     },
     patrol = new UnitState(){
         public void update(){
-            //TODO
+            target = getClosestCore();
+            if(target != null){
+                circle(60f + Mathf.absin(Timers.time() + id*23525, 70f, 1200f));
+            }
         }
     },
     retreat = new UnitState(){