图片 滚动切换效果（一）

打算做个图片切换，百度了下，发现有很多案例，比如

这次，我也尝试做一下

很直白，没特效。图片是sprite 2d 方式操作的。

发上来的主要目的，是给大家制作类似切换，参考，当然不是参考 动画效果，这个我后期 第二版本开始逐步加。

   //触发缓动
    void OnSetTween()
    {
        OnStartTween();
        //0.1范围内 自动归0
        OnZero();
        OnTweenMoveScroll();
        FingerUpPoint = Grid.position = embattleVector3;
    }
    void OnStartTween()
    {
        ///****超过右边*****  向左///
        if (embattleVector3.x > 0)
        {
            Scenario = 0;
            embattleVector3.x -= speetScenario;
            FingerUpPoint = Grid.position = embattleVector3;
            return;
        }
    }
    //松开鼠标移动中处理
    void OnTweenMoveScroll()
    {
        //向左
        if (embattleVector3.x < 0)
        {
            float embattleFloat = Mathf.Abs(embattleVector3.x);
            if (embattleFloat > 0 && embattleFloat < 2)
            {
                Scenario = 0;
                embattleVector3.x += speetScenario;
                FingerUpPoint = Grid.position = embattleVector3;
                return;
            }

            switch (maxScenario)
            {
                case 0:
                    OnRightZero(0, 0);
                    break;
                case 1:
                    OnRightZero(5, 1);
                    OnTweenSubMove(2, 5, 1, true);
                    break;
                case 2:
                    OnRightZero(10, 2);
                    if (OnTweenSubMove(2, 5, 1, true))
                    {
                        if (OnTweenSubMove(5, 7, 2, false))
                        {
                            OnTweenSubMove(7, 10, 2, true);
                        }
                    }
                    break;
                case 3:
                    OnRightZero(15, 3);
                    if (OnTweenSubMove(2, 5, 1, true))
                    {
                        if (OnTweenSubMove(5, 7, 2, false))
                        {
                            if (OnTweenSubMove(7, 10, 2, true))
                            {
                                if (OnTweenSubMove(10, 12, 3, false))
                                {
                                    OnTweenSubMove(12, 15, 3, true);
                                }
                            }
                        }
                    }
                    break;
                case 4:
                    OnRightZero(20, 4);
                    //暂时不写
                    break;
                default: break;
            }
        }
    }

    bool OnTweenSubMove(int min, int max, int Scen, bool sign)
    {
        bool re = true;
        float embattleFloat = Mathf.Abs(embattleVector3.x);
        if (embattleFloat > min && embattleFloat < max)
        {
            re = false;
            Scenario = Scen;
            if (sign)
            {
                embattleVector3.x -= speetScenario;
            }
            else
            {
                embattleVector3.x += speetScenario;
            }
            OnLeftZero();
            FingerUpPoint = Grid.position = embattleVector3;
        }
        return re;
    }
    //右边归零
    void OnRightZero(int sizeEmbattle, int Scenarios)
    {
        if (embattleVector3.x < 0)
        {
            float embattleFloat = Mathf.Abs(embattleVector3.x);
            if (embattleFloat >= sizeEmbattle)
            {
                Scenario = Scenarios;
                embattleVector3.x += speetScenario;
                OnLeftZero();
                FingerUpPoint = Grid.position = embattleVector3;
            }
        }
    }

    //左边归零
    void OnLeftZero()
    {
        float embattleFloat = Mathf.Abs(embattleVector3.x);
        embattleFloat = widthscenario * Scenario - embattleFloat;
        if (embattleFloat < speetScenario)
        {
            embattleFloat = embattleVector3.x = -widthscenario * Scenario;
            FingerUpPoint = Grid.position = embattleVector3;
            triggerTween = false;
            return;
        }
    }
    //0.1范围内 自动归0
    void OnZero()
    {
        float embattleFloat = Mathf.Abs(embattleVector3.x);
        if (embattleFloat < speetScenario)
        {
            embattleFloat = embattleVector3.x = 0;
            FingerUpPoint = Grid.position = embattleVector3;
            triggerTween = false;
            return;
        }
    }

对于效果不足的地方，下一节我会逐渐完善。好了，新年开始，恢复精神，继续努力工作。