/// <summary>
/// Determine change in loc caused by keypresses this tic.
/// </summary>
/// <returns>Potential offset of cursor.</returns>
private Loc determineOffset()
{
Loc offset = new Loc ();
// Add to offset based on keyboard input
// Must take perspective (rotation) of camera into consideration
if (Input.GetButton ("Up"))
offset = offset.plus (new Loc (0, 1, Cam.main.perspective));
if (Input.GetButton ("Down"))
offset = offset.plus (new Loc (0, -1, Cam.main.perspective));
if (Input.GetButton ("Left"))
offset = offset.plus (new Loc (-1, 0, Cam.main.perspective));
if (Input.GetButton ("Right"))
offset = offset.plus (new Loc (1, 0, Cam.main.perspective));
return offset;
}
