Unity3D手机斗地主游戏开发实战（02）

大体思路

前面我们实现了点击开始游戏按钮，系统依次给玩家发牌的逻辑和动画，并展示当前的手牌。这期我们继续实现接下来的功能--叫地主。

1.首先这两天，学习了DOTween，这是一个强大的Unity动画插件，大家可以参考：DOTween官方文档，个人感觉DOTween还是比较好用的。

好的，我们先来重构一下动画部分的代码（没有绝对牛逼的架构和设计，项目过程中不要不断的持续改进嘛）；先把之前ITween相关引用从项目中删除，然后导入DOTween插件。

玩家类调整

Player作为玩家的基类，我们需要增加ToBiding（开始叫地主），ForBid（抢地主），NotBid（不抢地主），来控制玩家在叫地主过程中的公共逻辑。

ToBiding：转到自己回合，并设置倒计时；

ForBid：跳出增加回合，停止倒计时，并调用卡牌管理类中的抢地主功能；

ForBid：跳出增加回合，停止倒计时，并调用卡牌管理类中的不抢地主功能；

然后，倒计时这块，添加一个协程Considerating，专门处理倒计时控件显示，标识玩家正在考虑中；

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;public abstract class Player : MonoBehaviour
{protected List<CardInfo> cardInfos = new List<CardInfo>();  //个人所持卡牌private Text cardCoutText;private Text countDownText;private int consideratingTime = 6; //玩家考虑时间protected bool isMyTerm = false;  //当前是否是自己回合void Start(){cardCoutText = transform.Find("HeapPos/Text").GetComponent<Text>();countDownText = transform.Find("CountDown/Text").GetComponent<Text>();}/// <summary>/// 增加一张卡牌/// </summary>/// <param name="cardName"></param>public void AddCard(string cardName){cardInfos.Add(new CardInfo(cardName));cardCoutText.text = cardInfos.Count.ToString();}/// <summary>/// 清空所有卡片/// </summary>public void DropCards(){cardInfos.Clear();}/// <summary>/// 用户考虑时间/// </summary>private IEnumerator Considerating(){//倒计时var time = consideratingTime;while (time > 0){countDownText.text = time.ToString();yield return new WaitForSeconds(1);time--;}NotBid();}/// <summary>/// 开始叫地主/// </summary>public virtual void ToBiding(){isMyTerm = true;//开始倒计时countDownText.transform.parent.gameObject.SetActive(true);StartCoroutine("Considerating");}/// <summary>/// 抢地主/// </summary>public void ForBid(){//关闭倒计时countDownText.transform.parent.gameObject.SetActive(false);StopCoroutine("Considerating");CardManager._instance.ForBid();isMyTerm = false;}/// <summary>/// 不抢地主/// </summary>public void NotBid(){//关闭倒计时countDownText.transform.parent.gameObject.SetActive(false);StopCoroutine("Considerating");CardManager._instance.NotBid();isMyTerm = false;}/// <summary>/// 卡牌排序（从大到小）/// </summary>protected void Sort(){cardInfos.Sort();cardInfos.Reverse();}}

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自身玩家类调整

其实就是重写了基类ToBiding方法，调用显示叫牌按钮（只有自身玩家才需要）

using System;
using System.Collections.Generic;
using DG.Tweening;
using UnityEngine;
using UnityEngine.EventSystems;/// <summary>
/// 自身玩家
/// </summary>
public class PlayerSelf : Player
{public GameObject prefab;   //预制件private Transform originPos1; //牌的初始位置private Transform originPos2; //牌的初始位置private List<GameObject> cards = new List<GameObject>();private bool canSelectCard = false;     //玩家是否可以选牌void Awake(){originPos1 = transform.Find("OriginPos1");originPos2 = transform.Find("OriginPos2");}//整理手牌public void GenerateAllCards(){//排序
        Sort();//计算每张牌的偏移var offsetX = originPos2.position.x - originPos1.position.x;//获取最左边的起点int leftCount = (cardInfos.Count / 2);var startPos = originPos1.position + Vector3.left * offsetX * leftCount;for (int i = 0; i < cardInfos.Count; i++){//生成卡牌var card = Instantiate(prefab, originPos1.position, Quaternion.identity, transform);card.GetComponent<RectTransform>().localScale = Vector3.one * 0.6f;card.GetComponent<Card>().InitImage(cardInfos[i]);card.transform.SetAsLastSibling();//动画移动var tween = card.transform.DOMoveX(startPos.x + offsetX * i, 1f);if (i == cardInfos.Count - 1) //最后一张动画
            {tween.OnComplete(() => { canSelectCard = true; });}cards.Add(card);}}/// <summary>/// 销毁所有卡牌对象/// </summary>public void DestroyAllCards(){cards.ForEach(Destroy);cards.Clear();}/// <summary>/// 开始叫牌/// </summary>public override void ToBiding(){base.ToBiding();CardManager._instance.SetBidButtonActive(true);}/// <summary>/// 点击卡牌处理/// </summary>/// <param name="data"></param>public void CardClick(BaseEventData data){//叫牌或出牌阶段才可以选牌if (canSelectCard &&(CardManager._instance.cardManagerState == CardManagerStates.Bid ||CardManager._instance.cardManagerState == CardManagerStates.Playing)){var eventData = data as PointerEventData;if (eventData == null) return;var card = eventData.pointerCurrentRaycast.gameObject.GetComponent<Card>();if (card == null) return;card.SetSelectState();}}
}

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对手玩家类调整

主要模拟对手叫牌，如果是玩家回合，按下Q叫牌，按下W不叫

using UnityEngine;public class PlayerOther : Player
{void Update(){//如果当前是自己回合，模拟对手叫牌if (isMyTerm){if (Input.GetKeyDown(KeyCode.Q))    //叫牌
            {ForBid();}if (Input.GetKeyDown(KeyCode.W))    //不叫
            {NotBid();}}}
}

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卡牌管理类调整

首先需要改造发牌方法，现在区分发牌是发普通牌还是发发地主牌，根据发牌的不同类型，取牌堆里的不同牌，再判断是依次发牌，还是只发给地主牌。

然后具体实现玩家开始抢地主StartBiding，叫地主ForBid，不叫地主NotBid 3个方法：

StartBiding：从当前回合玩家开始叫牌；

ForBid：设置当前回合玩家是地主，并给地主发余下3张牌；

NotBid ：转向下个回合玩家开始叫牌；

using System;
using System.Collections;
using System.IO;
using System.Linq;
using DG.Tweening;
using UnityEngine;/// <summary>
/// 卡牌管理
/// </summary>
public class CardManager : MonoBehaviour
{public static CardManager _instance;    //单例public float dealCardSpeed = 20;  //发牌速度public Player[] Players;    //玩家的集合public GameObject coverPrefab;      //背面排预制件public Transform heapPos;           //牌堆位置public Transform[] playerHeapPos;    //玩家牌堆位置public CardManagerStates cardManagerState;private string[] cardNames;  //所有牌集合private int termStartIndex;  //回合开始玩家索引private int termCurrentIndex;  //回合当前玩家索引private int bankerIndex;        //当前地主索引private GameObject bidBtns;void Awake(){_instance = this;cardNames = GetCardNames();bidBtns = GameObject.Find("BidBtns");bidBtns.SetActive(false);}/// <summary>/// 洗牌/// </summary>public void ShuffleCards(){//进入洗牌阶段cardManagerState = CardManagerStates.ShuffleCards;cardNames = cardNames.OrderBy(c => Guid.NewGuid()).ToArray();}/// <summary>/// 开始发牌/// </summary>public IEnumerator DealCards(){//进入发牌阶段cardManagerState = CardManagerStates.DealCards;termCurrentIndex = termStartIndex;yield return DealHeapCards(false);}/// <summary>/// 发牌堆上的牌（如果现在不是抢地主阶段，发普通牌，如果是，发地主牌）/// </summary>/// <returns></returns>private IEnumerator DealHeapCards(bool ifForBid){//显示牌堆heapPos.gameObject.SetActive(true);playerHeapPos.ToList().ForEach(s => { s.gameObject.SetActive(true); });var cardNamesNeeded = ifForBid? cardNames.Skip(cardNames.Length - 3).Take(3)  //如果是抢地主牌，取最后3张: cardNames.Take(cardNames.Length - 3);         //如果首次发牌foreach (var cardName in cardNamesNeeded){//给当前玩家发一张牌
            Players[termCurrentIndex].AddCard(cardName);var cover = Instantiate(coverPrefab, heapPos.position, Quaternion.identity, heapPos.transform);cover.GetComponent<RectTransform>().localScale = Vector3.one;//移动动画，动画结束后自动销毁var tween = cover.transform.DOMove(playerHeapPos[termCurrentIndex].position, 0.3f);tween.OnComplete(() => Destroy(cover));yield return new WaitForSeconds(1 / dealCardSpeed);//下一个需要发牌者if (!ifForBid)SetNextPlayer();}//隐藏牌堆heapPos.gameObject.SetActive(false);playerHeapPos[0].gameObject.SetActive(false);//发普通牌if (!ifForBid){//显示玩家手牌
            ShowPlayerSelfCards();StartBiding();}//发地主牌else{if (Players[bankerIndex] is PlayerSelf){//显示玩家手牌
                ShowPlayerSelfCards();}cardManagerState = CardManagerStates.Playing;}}/// <summary>/// 开始抢地主/// </summary>private void StartBiding(){cardManagerState = CardManagerStates.Bid;Players[termCurrentIndex].ToBiding();}/// <summary>/// 显示玩家手牌/// </summary>private void ShowPlayerSelfCards(){Players.ToList().ForEach(s =>{var player0 = s as PlayerSelf;if (player0 != null){player0.GenerateAllCards();}});}/// <summary>/// 清空牌局/// </summary>public void ClearCards(){//清空所有玩家卡牌Players.ToList().ForEach(s => s.DropCards());//显示玩家手牌Players.ToList().ForEach(s =>{var player0 = s as PlayerSelf;if (player0 != null){player0.DestroyAllCards();}});}/// <summary>/// 叫地主/// </summary>public void ForBid(){//设置当前地主bankerIndex = termCurrentIndex;//给地主发剩下的3张牌SetBidButtonActive(false);StartCoroutine(DealHeapCards(true));}/// <summary>/// 不叫/// </summary>public void NotBid(){SetBidButtonActive(false);SetNextPlayer();Players[termCurrentIndex].ToBiding();}/// <summary>/// 控制叫地主按钮是否显示/// </summary>/// <param name="isActive"></param>public void SetBidButtonActive(bool isActive){bidBtns.SetActive(isActive);}/// <summary>/// 设置下一轮开始玩家/// </summary>public void SetNextTerm(){termStartIndex = (termStartIndex + 1) % Players.Length;}/// <summary>/// 设置下个回合玩家/// </summary>/// <returns></returns>public void SetNextPlayer(){termCurrentIndex = (termCurrentIndex + 1) % Players.Length;}private string[] GetCardNames(){//路径  string fullPath = "Assets/Resources/Images/Cards/";if (Directory.Exists(fullPath)){DirectoryInfo direction = new DirectoryInfo(fullPath);FileInfo[] files = direction.GetFiles("*.png", SearchOption.AllDirectories);return files.Select(s => Path.GetFileNameWithoutExtension(s.Name)).ToArray();}return null;}//开始新回合public void OnStartTermClick(){ClearCards();ShuffleCards();StartCoroutine(DealCards());}}

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总结

至此，我们【叫地主】功能大体完成了，来试试效果吧~

资源

项目源码

文章作者：原子蛋
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