void Update()
{
int i = 0;
foreach (var item in cloth)
{
if (gravity)
{
item.GetComponent <PointMass> ().AddForce(new Vector3(0, -9.8f, 0));
}
newVerts [i++] = item.transform.position;
}
if (Input.GetKeyDown(KeyCode.G))
{
gravity = !gravity;
}
mm.verts = newVerts;
mm.setMesh();
}