gistfile1.cs

void spread(Transform area, ref GameObject[] array) {

		int l = array.Length;
		if (l > 1) {
			Vector3 center = area.collider.bounds.center, extents = area.collider.bounds.extents;
			float top = center.y + extents.y,
				  bottom = center.y - extents.y;
			bool allSpread;
			int tries = 0, maxTries = 5000;
			float bumpDist = 1.5f;
			do {
				Array.Sort(array, delegate(GameObject x, GameObject y) {
					return x.transform.position.y.CompareTo(y.transform.position.y);
				});

				allSpread = true;
				for (int i = 0; i < (l - 1); i++) {
					GameObject obj1 = array[i],
							   obj2 = array[i+1];
					float dist = obj1.transform.position.y - obj2.transform.position.y;
					if (Mathf.Abs(dist) < bumpDist) {
						allSpread = false;
						obj1.transform.position = new Vector3(center.x, UnityEngine.Random.Range(bottom, top), center.z);
					}
				}
				if (!allSpread) {
					tries++;
				}
			} while (tries < maxTries && !allSpread);


		}
	}