BezierCurve.Init C# (CSharp) Method

    public void Init(Vector2 p0, Vector2 p1, Vector2 p2, Vector2 p3)
    {
        Vector2 topleft = new Vector2(Mathf.Infinity, Mathf.Infinity);
        Vector2 bottomright = new Vector2(Mathf.NegativeInfinity, Mathf.NegativeInfinity);

        topleft.x = Mathf.Min(topleft.x, p0.x);
        topleft.x = Mathf.Min(topleft.x, p1.x);
        topleft.x = Mathf.Min(topleft.x, p2.x);
        topleft.x = Mathf.Min(topleft.x, p3.x);

        topleft.y = Mathf.Min(topleft.y, p0.y);
        topleft.y = Mathf.Min(topleft.y, p1.y);
        topleft.y = Mathf.Min(topleft.y, p2.y);
        topleft.y = Mathf.Min(topleft.y, p3.y);

        bottomright.x = Mathf.Max(bottomright.x, p0.x);
        bottomright.x = Mathf.Max(bottomright.x, p1.x);
        bottomright.x = Mathf.Max(bottomright.x, p2.x);
        bottomright.x = Mathf.Max(bottomright.x, p3.x);

        bottomright.y = Mathf.Max(bottomright.y, p0.y);
        bottomright.y = Mathf.Max(bottomright.y, p1.y);
        bottomright.y = Mathf.Max(bottomright.y, p2.y);
        bottomright.y = Mathf.Max(bottomright.y, p3.y);

        rect = new Rect(topleft.x, topleft.y, bottomright.x - topleft.x, bottomright.y - topleft.y);

        var ps = new List<Vector2>();

        var point1 = Mathfx.CubicBezier(0, p0, p1, p2, p3);
        var point2 = Mathfx.CubicBezier(0.05f, p0, p1, p2, p3);
        var point3 = Mathfx.CubicBezier(0.1f, p0, p1, p2, p3);
        var point4 = Mathfx.CubicBezier(0.15f, p0, p1, p2, p3);

        var point5 = Mathfx.CubicBezier(0.5f, p0, p1, p2, p3);
        var point6 = Mathfx.CubicBezier(0.55f, p0, p1, p2, p3);
        var point7 = Mathfx.CubicBezier(0.6f, p0, p1, p2, p3);

        aproxLength = Vector2.Distance(point1, point2) + Vector2.Distance(point2, point3) + Vector2.Distance(point3, point4) + Vector2.Distance(point5, point6) + Vector2.Distance(point6, point7);

        Debug.Log(Vector2.Distance(point1, point2) + "     " + Vector2.Distance(point3, point4) + "   " + Vector2.Distance(point6, point7));
        aproxLength *= 4;

        float a2 = 0.5f / aproxLength;//Double the amount of points since the aproximation is quite bad
        for (float i = 0; i < 1; i += a2)
        {
            ps.Add(Mathfx.CubicBezier(i, p0, p1, p2, p3));
        }

        points = ps.ToArray();
    }

    // For Smooth Curve command
    public void AddRelativePoint(Vector3 control2, Vector3 end)
    {
        BezierCurve curve = GameObject.Instantiate(curvePrefab).GetComponent <BezierCurve>();

        int numCurves = curves.Count;

        if (numCurves > 0)
        {
            BezierCurve prev     = curves[numCurves - 1];
            Vector3     anchor   = prev.GetEndPosition();
            Vector3     control1 = (prev.p2.position - prev.p3.position) * -1;

            curve.Init(NumSubDivisions, anchor, anchor + control1, anchor + control2, anchor + end, transform);

            prev.SetNext(curve);
            curve.SetPrev(prev);
        }
        else
        {
            Vector3 p = transform.position;
            curve.Init(NumSubDivisions, p, p, p + control2, p + end, transform);
        }

        curves.Add(curve);
        splineLength += curve.GetLength();
    }