베지어 곡선

// 0.0 >= t <= 1.0 her be magic and dragons  
    public Vector3 GetPointAtTime(float t)
    {
        float u = 1f - t;
        float tt = t * t;
        float uu = u * u;
        float uuu = uu * u;
        float ttt = tt * t;

        Vector3 p = uuu * this.points[0].position; //first term  
        p += 3 * uu * t * this.points[1].position; //second term  
        p += 3 * u * tt * this.points[2].position; //third term  
        p += ttt * this.points[3].position; //fourth term  

        return p;
    }

t : 시간

point[0] : 시작지점

point[1] : 조절 지점 1

point[2] : 조절 지점 2

point[3] : 도착 지점