fix turrets: walls rotating, friendlies targeted

Assets/Scripts/Logic/Data/World/Tower.cs

@@ -17,6 +17,7 @@ public class Tower : Building {
 			float closestDistance = float.PositiveInfinity;
 			Vector2 turretPosition = Position.ToVectorCentered();
 			foreach (Unit unit in World.Units) {
+				if (unit.Owner == Owner) continue;
 				float distance = unit.Position.Distance2(turretPosition);
 				if (closestDistance > distance) {
 					closestDistance = distance;

Assets/Scripts/Logic/Event/World/Barrack/IBarrackEvent.cs

-using Logic.Data.World;
-
 namespace Logic.Event.World.Barrack {
 public interface IBarrackEvent {
 	public Data.World.Barrack Barrack { get; }

Assets/Scripts/Presentation/World/Tower.cs

@@ -23,14 +23,9 @@ public class Tower : Structure {
 	private World _world;
 
 	private void FixedUpdate() {
-		Logic.Data.World.Unit logicTarget = _data.Target ?? _data.ClosestEnemy;
-		if (logicTarget != null && logicTarget.IsAlive) {
-			Vector3 target = _world.LogicToPresentation(logicTarget).transform.position;
-			Vector3 direction = (target - rotatingTurret.position).normalized;
-			float angle = Mathf.Rad2Deg * Mathf.Atan2(direction.y, direction.x);
-			Quaternion desired = Quaternion.AngleAxis(angle - 90, Vector3.forward);
-			rotatingTurret.rotation = Quaternion.RotateTowards(rotatingTurret.rotation, desired,
-				Time.fixedDeltaTime * turretRotationSpeed);
+		if (_data.Type.Range > 0) {
+			Logic.Data.World.Unit logicTarget = _data.Target ?? _data.ClosestEnemy;
+			if (logicTarget != null) RotateTurret(logicTarget);
 		}
 	}
 
@@ -56,5 +51,14 @@ public class Tower : Structure {
 	public void DestroyTower() {
 		Destroy(gameObject);
 	}
+
+	private void RotateTurret(Logic.Data.World.Unit logicTarget) {
+		Vector3 target = _world.LogicToPresentation(logicTarget).transform.position;
+		Vector3 direction = (target - rotatingTurret.position).normalized;
+		float angle = Mathf.Rad2Deg * Mathf.Atan2(direction.y, direction.x);
+		Quaternion desired = Quaternion.AngleAxis(angle - 90, Vector3.forward);
+		rotatingTurret.rotation = Quaternion.RotateTowards(rotatingTurret.rotation, desired,
+			Time.fixedDeltaTime * turretRotationSpeed);
+	}
 }
 }