adicionado rotacao a bola

Assets/Scripts/BallController.cs

@@ -6,6 +6,12 @@ using System;
 public class BallController : MonoBehaviour 
 {
     public static event Action<GameObject> ballContact;
+
+    private void Update()
+    {
+        transform.Rotate(Vector3.forward * UnityEngine.Random.Range(4, 10));
+    }
+
     private void OnCollisionEnter2D(Collision2D collision)
     {
         if (collision.gameObject.CompareTag("Ground") || collision.gameObject.CompareTag("Player"))

Assets/Scripts/CrossOverBehaviour.cs

@@ -9,7 +9,10 @@ public class CrossOverBehaviour : StateMachineBehaviour
 	// OnStateEnter is called when a transition starts and the state machine starts to evaluate this state
 	override public void OnStateEnter(Animator animator, AnimatorStateInfo stateInfo, int layerIndex) 
 	{
-		action();
+		if (action != null)
+		{
+			action();
+		}
 	}
 
 	// OnStateUpdate is called on each Update frame between OnStateEnter and OnStateExit callbacks
@@ -21,7 +24,10 @@ public class CrossOverBehaviour : StateMachineBehaviour
 	// OnStateExit is called when a transition ends and the state machine finishes evaluating this state
 	override public void OnStateExit(Animator animator, AnimatorStateInfo stateInfo, int layerIndex) 
 	{
-		action();
+		if (action != null)
+		{
+			action();
+		}
 	}
 
 	// OnStateMove is called right after Animator.OnAnimatorMove(). Code that processes and affects root motion should be implemented here

Assets/Scripts/GameManager.cs

@@ -63,9 +63,7 @@ public class GameManager : MonoBehaviour
         stopAnimations();
         player.GetComponent<Rigidbody2D>().velocity = Vector2.zero;
         npc.GetComponent<Rigidbody2D>().velocity = Vector2.zero;
-        Debug.Log("finalizando turno");
         yield return new WaitForSecondsRealtime(1);
-        Debug.Log("começando turno");
         //do something
         StartCoroutine(setupTurn());
     }

Assets/Scripts/StepBackBehaviour.cs

@@ -8,7 +8,10 @@ public class StepBackBehaviour : StateMachineBehaviour
 	// OnStateEnter is called when a transition starts and the state machine starts to evaluate this state
 	override public void OnStateEnter(Animator animator, AnimatorStateInfo stateInfo, int layerIndex) 
 	{
-		action();
+		if (action != null)
+		{
+			action();
+		}
 	}
 
 	// OnStateUpdate is called on each Update frame between OnStateEnter and OnStateExit callbacks
@@ -20,7 +23,10 @@ public class StepBackBehaviour : StateMachineBehaviour
 	// OnStateExit is called when a transition ends and the state machine finishes evaluating this state
 	override public void OnStateExit(Animator animator, AnimatorStateInfo stateInfo, int layerIndex) 
 	{
-		action();
+		if (action != null)
+		{
+			action();
+		}
 	}
 
 	// OnStateMove is called right after Animator.OnAnimatorMove(). Code that processes and affects root motion should be implemented here