Unity crashes on GameObject = hit.collider.gameObject;

Questions & Answers
1

Hi everyone.

I’m trying to store a raycast-hitted game object in a variable, so I can change the material of it later on. At the moment, Unity crashes every time it runs this particular line of code, the line that says:

selectedUnit = hit.collider.gameObject;

Here is the code:

public class SelectUnit : MonoBehaviour {

private Ray ray;
private RaycastHit hit;
public GameObject selectedUnit;

void Update () {
	int i = 0;
	while (i < Input.touchCount) {
		if (Input.GetTouch(i).phase == TouchPhase.Began) {
			ray = Camera.main.ScreenPointToRay(Input.GetTouch(i).position);
			if (Physics.Raycast(ray, out hit, 100)) {
				selectedUnit = hit.collider.gameObject;
				Debug.Log ("selected unit is: " + selectedUnit.name);
			}
			++i;
		}
	}
}
}

If i omit that line of code with //, the project runs fine, but if it’s run, then Unity will crash. Can anybody work out why it crashes?

2

Looks to me like your i++ in the while loop is inside the wrong bracket and you are not incrementing unless one of the touches is in the Began phase. Could therefore be an infinite loop.