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Question by Atarius · Mar 03, 2016 at 12:10 AM · arrayvector3itweenitween path

How do you get iTween to properly implement PutOnPath command?

I am trying to use iTween to get a gameObject to follow a path and end up in a specific location. I keep getting an error which is "IndexOutOfRangeException: Array index is out of range."

Any help on this would be greatly appreciated! Here is my code

public class MosquitoCamPath : MonoBehaviour {

 float percentsPerSecond = 0.02f;
 float currentPathPercent = 0.0f;
 public Vector3[] path;
 // Use this for initialization
 void Start () {


     
     Vector3[] path = new Vector3[5];
     path[0] = new Vector3(5, 45, 5);
     path[1] = new Vector3(8, 30, 16);
     path[2] = new Vector3(15, 20, 20);
     path[3] = new Vector3(8, 15, 22);
     path[4] = GameObject.Find("Mosquito Model(Clone)").GetComponent<Pathing>().loc;

    

 }
 
 // Update is called once per frame
 void Update () {

     currentPathPercent += percentsPerSecond * Time.deltaTime;

     iTween.PutOnPath(gameObject, path, currentPathPercent);
     iTween.LookTo(gameObject, GameObject.Find("Mosquito Model(Clone)").GetComponent<Pathing>().loc, 15);
 }

}

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Answer by phil_me_up · Mar 03, 2016 at 12:15 AM

My first thought is that your currentPathPercent can go above 1.0f. When that happens, you might find that iTween is searching outside of the path points you've passed in, which would generate the error you're seeing.

Try clamping the currentPath to between 0 and 1 (either use Mathf.Clamp01() or just check if (currentPathPercent > 1.0f) { currentPathPercent -= 1.0f; }

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