void alternateColors()
{
if (Time.time - flashTimeStamp > timePerFlash)
{
Renderer renderer = this.gameObject.GetComponent<SpriteRenderer>();
if (renderer.material.color == flashColor)
{
renderer.material.color = Color.white;
}
else
{
renderer.material.color = flashColor;
}
flashTimeStamp = Time.time;
}
}