rms80

       class vector1
        {
            public float x, y, z;
            public vector1(float x, float y, float z) { this.x = x; this.y = y; this.z = z; }
            public float this[int key]
            {
                get { return (key == 0) ? x : (key == 1) ? y : z; }
                set { if (key == 0) x = value; else if (key == 1) y = value; else z = value; }
            }
        }