Question by mrmichaelb · Apr 11, 2018 at 10:14 PM · coroutine coroutines update function asynchronous coroutine errors

Unity C# Punching Coroutine not completing

So I have the code as follows.

 void Update() {
 
         // WASD Movement
         if (Input.GetKey(KeyCode.W)) { movementUpdate.y += movementPerSecond * Time.deltaTime; }
 
         if (Input.GetKey(KeyCode.A)) { movementUpdate.x -= movementPerSecond * Time.deltaTime; }
 
         if (Input.GetKey(KeyCode.S)) { movementUpdate.y -= movementPerSecond * Time.deltaTime; }
 
         if (Input.GetKey(KeyCode.D)) { movementUpdate.x += movementPerSecond * Time.deltaTime; }
 
         playerBody.position = playerBody.position + movementUpdate;
 
         movementUpdate = new Vector3(0, 0, 0);
 
         // Body rotation relative to cursor position
 
         Vector3 dir = Input.mousePosition - Camera.main.WorldToScreenPoint(transform.position);
         float angle = Mathf.Atan2(dir.y, dir.x) * Mathf.Rad2Deg;
         playerBody.rotation = Quaternion.AngleAxis(angle - 90, Vector3.forward);
 
         // hand position via function
         UpdateHandPosition(playerLeftHand, desiredPositionForLeftHand);
         UpdateHandPosition(playerRightHand, desiredPositionForRightHand);
 
         if (Input.GetMouseButtonDown(0)) {
             Punch();
         }
 
     }
 ...

 void Punch() {
         StartCoroutine(PunchCoroutine());
     }
 
     IEnumerator PunchCoroutine() {
         Debug.Log("User punched.");
 
         if (onLeftHandPunch = false) {
             print(onLeftHandPunch);
 
             onLeftHandPunch = false;
 
             // punch the shit
 
             desiredPositionForLeftHand = "middleMiddleCoordinates";
 
             yield return new WaitForSeconds(1f);
             Debug.Log("Corountine finished.");
 
             desiredPositionForLeftHand = "topMiddleCoordinates";
 
 
 
         } else {
             print(onLeftHandPunch);
 
             onLeftHandPunch = true;
 
             // punch the shit
 
             desiredPositionForRightHand = "middleMiddleCoordinates";
         }
 
 
 
     }

But when I play the code, and click the left mouse button, the following is displayed in the console.