void OnCollisionEnter(Collision platform)
{
print(previousVy);
if (rigidbody == null)
{
rigidbody = gameObject.GetComponent <Rigidbody> ();
}
if (platform.collider.gameObject.layer == 8 && previousVy <= 0)
{
height = gameObject.transform.position.y;
Vector3 newVel = LaunchPlayer();
platformGenerator.generateNewPlatform(transform, transform.position, newVel, true);
}
}