Function leap

assets/js/rubiks_cube.js:1824–1827

(a, b, x)

        var sub = direction === RubikCube.RotationDirection.BACKWARD ? 3 : -3;
  
        function leap(a, b, x) {
          var f = (1.0 - cos(x * 3.1415927)) * 0.5;
          return a * (1.0 - f) + b * f;
        }
  
        var prev = 0;
        var x = 0.0;