Unity学习记录——手牌区域的曲面化以及DOTween实现旋转

最近开始跟着老师学做炉石.在手牌这块老师以长方形呈现了手牌列表,不过对于伪完美主义的我来说终归是有些缺陷的.所以抱着自己动手实践的想法做了一个,
实践的过程中也遇到了几个新问题,网上并没有直接答案,所以也算是学有所得.
贴出结果,如果哪里有缺陷还希望大家指教.

以下效果图

只有一张手牌时

增加到六张时

减少到四张

手牌的预设.这里涉及了pivot的设置.x=0.5,y=0.5意味着旋转以图片中心为圆心,x=0,y=0意味着以图片左下角为圆心.以此类推

以下代码

`using UnityEngine;
using System.Collections;
using UnityEngine.UI;
using DG.Tweening;
using System.Collections.Generic;

public class Hero1HandCards : MonoBehaviour {
public GameObject GOHandCardPrefab; //手牌预设
private List ListHandCard = new List();//手牌列表
public GameObject TransBeginHandCard; //生成手牌的最开始的位置

private float _FloRotateAngel;                         //手牌动画旋转的角度
// Use this for initialization
void Start () {

}

// Update is called once per frame
void Update () {
    if (Input.GetKeyDown(KeyCode.LeftShift))
    {
        GetCards();
        RotateAngel();
        AddCardAnimations();


    }
    else if (Input.GetKeyDown(KeyCode.Backspace))
    {
        UseCardAnimation();
    }
}

public void GetCards()
{
    //克隆预设
    GameObject GOHandCard = GameObject.Instantiate(GOHandCardPrefab)as GameObject;
    GOHandCard.transform.position = TransBeginHandCard.transform.position;
    GOHandCard.transform.parent = this.transform;
    //将新手牌添加到手牌列表
    ListHandCard.Add(GOHandCard);
    //计算动画需要旋转的角度
    RotateAngel();

}
//为手牌添加动画
private void HandCardAnimation(GameObject GO,float Vec3_Z)
{
    GO.transform.DORotate(new Vector3(0, 0, Vec3_Z), 0.3F, RotateMode.Fast);
}
//增加手牌时播放的动画
private void AddCardAnimations()
{
    if (ListHandCard.Count == 1)
    {
        HandCardAnimation(ListHandCard[0], 0);
    }
    else
    {
        for (int i = 1; i < ListHandCard.Count; i++)
        {
            HandCardAnimation(ListHandCard[i - 1], 30 - _FloRotateAngel * (float)i * ListHandCard.Count + 2.5F);
        }
        HandCardAnimation(ListHandCard[ListHandCard.Count - 1], -27.5F + _FloRotateAngel);
    }
}
//使用手牌时播放的动画
private void UseCardAnimation()
{
    Destroy(ListHandCard[0]);
    ListHandCard.Remove(ListHandCard[0]);
    RotateAngel();
    if (ListHandCard.Count == 1)
    {
        HandCardAnimation(ListHandCard[0], 0);
    }
    else if(ListHandCard.Count>1)
    {
        for (int i = 1; i < ListHandCard.Count+1; i++)
        {
            HandCardAnimation(ListHandCard[i-1], 30 - _FloRotateAngel * (float)i * ListHandCard.Count + 2.5F);
            HandCardAnimation(ListHandCard[ListHandCard.Count - 1], -27.5F + _FloRotateAngel);
        }
    }
}
//计算需要旋转的角度
private void RotateAngel()
{
    _FloRotateAngel = 55F / (float)ListHandCard.Count / (float)ListHandCard.Count;
}

}
`