BezierCurve

using UnityEngine;
using System.Collections;

public class Basier3 : MonoBehaviour {


    public Transform p1;
    public Transform p2;
    public Transform p3;
    public Transform p4;



    public Transform t1;
    public Transform t2;
    public Transform t3;


    public Transform m1;
    public Transform m2;

    public Transform n;


    private float t = 0;

    // Use this for initialization
    void Start () {
    
    }
    
    // Update is called once per frame
    void Update () 
    {


        if (t < 1)
        {

            t1.position = p1.position + (p2.position - p1.position) * t;
            t2.position = p2.position + (p3.position - p2.position) * t;
            t3.position = p3.position + (p4.position - p3.position) * t;



            m1.position = t1.position + (t2.position - t1.position) * t;
            m2.position = t2.position + (t3.position - t2.position) * t;


            n.position = m1.position + (m2.position - m1.position) * t;


            t += Time.deltaTime * .1f;
        }
        else
        {
            t = 0;
        }



    }


    void OnDrawGizmos()
    {
        Gizmos.color = Color.red;
        Gizmos.DrawLine(p1.position,t1.position);

        Gizmos.color = Color.green;
        Gizmos.DrawLine(p2.position,t2.position);

        Gizmos.color = Color.blue;
        Gizmos.DrawLine(p3.position,t3.position);


        Gizmos.color = Color.yellow;
        Gizmos.DrawLine(t1.position,t2.position);
        Gizmos.DrawLine(t2.position,t3.position);
        Gizmos.DrawLine(m1.position,m2.position);


    }
}