void Update()
{
var current = river.GetCurrent(transform.position.y);
transform.position += (Vector3)current * 2f * Time.deltaTime;
var cameraSize = Camera.main.orthographicSize;
var cameraTop = cameraPosition.position.y + cameraSize;
var cameraBottom = cameraPosition.position.y - cameraSize;
if (transform.position.y > cameraTop + 2f)
{
var y = cameraBottom;
var x = Random.Range(river.GetBank(y, true), river.GetBank(y, false));
MoveTo(new Vector3(x, y, transform.position.z));
}
else if (transform.position.y < cameraBottom - 2f)
{
var y = cameraTop;
var x = Random.Range(river.GetBank(y, true), river.GetBank(y, false));
MoveTo(new Vector3(x, y, transform.position.z));
}
}