用Unity3D来尝试做一个简单的小游戏.
一、创建项目
1.创建Unity2017的2D项目，暂且叫做ChinesePoker吧，就用自带的UGUI来编辑UI， 目前只导入iTween插件，用来方便控制动画效果。
目录结构如下：
考虑卡牌需要动态生成，我把图片资源放到Resource目录，并按照Card_类型（大小王，红桃，黑桃，方片，梅花 ）_数字（卡牌所在类型中的数字）命名。
素材都是网上找的，没有美工基础，就是这么个意思，大家将就看吧，：）
2.建第一个场景，默认叫001_Playing，作为主要玩牌的场景，暂时作为第1个场景，后期新场景添加进来，我们可能再调整场景的顺序。
添加一个UI->Image,选择一个背景图片；
添加3个UI->Canvas，分别取名叫Player0,Player1,Player2,代表玩家，对手1，对手2；
每个Player底下，添加一个Image，选择卡牌背面图片，分别表示发牌时各自牌堆的位置，并在桌面放置一个总牌堆的位置，默认not active；
建一个卡牌的图片，命名为Card，并作为预制件，放入Player0中间一个，稍微偏移一定位置再放置一个，用来计算每张牌跟临牌相对位置，设置not active；
建一个卡牌的背面图片，命名Cover，也作为预制件；
添加一个测试按钮TestButton;
差不多了，大概结构如下：
二、创建卡牌、玩家信息
1.新建CardInfo类，主要不要继承默认的MonoBehaviour类，用来作为卡牌的实体类；
实现IComparable接口，后面手牌排序会用到。
public class CardInfo : IComparable
{
public string cardName; //卡牌图片名
public CardTypes cardType; //牌的类型
public int cardIndex; //牌在所在类型的索引1-13
public CardInfo(string cardName)
{
this.cardName = cardName;
var splits = cardName.Split('_');
switch (splits[1])
{
case "1":
cardType = CardTypes.Hearts;
cardIndex = int.Parse(splits[2]);
break;
case "2":
cardType = CardTypes.Spades;
cardIndex = int.Parse(splits[2]);
break;
case "3":
cardType = CardTypes.Diamonds;
cardIndex = int.Parse(splits[2]);
break;
case "4":
cardType = CardTypes.Clubs;
cardIndex = int.Parse(splits[2]);
break;
case "joker":
cardType = CardTypes.Joker;
cardIndex = int.Parse(splits[2]);
break;
default:
throw new Exception(string.Format("卡牌文件名{0}非法！", cardName));
}
}
//卡牌大小比较
public int CompareTo(object obj)
{
CardInfo other = obj as CardInfo;
if (other == null)
throw new Exception("比较对象类型非法！");
//如果当前是大小王
if (cardType == CardTypes.Joker)
{
//对方也是大小王
if (other.cardType == CardTypes.Joker)
{
return cardIndex.CompareTo(other.cardIndex);
}
//对方不是大小王
return 1;
}
//如果是一般的牌
else
{
//对方是大小王
if (other.cardType == CardTypes.Joker)
{
return -1;
}
//如果对方也是一般的牌
else
{
//计算牌力
var thisNewIndex = (cardIndex == 1 || cardIndex == 2) ? 13 + cardIndex : cardIndex;
var otherNewIndex = (other.cardIndex == 1 || other.cardIndex == 2) ? 13 + other.cardIndex : other.cardIndex;
if (thisNewIndex == otherNewIndex)
{
return -cardType.CompareTo(other.cardType);
}
return thisNewIndex.CompareTo(otherNewIndex);
}
}
}
}
2.Card预制件上，添加Card脚本，主要保存对应CardInfo信息、选中状态，并加载卡牌图片；
public class Card : MonoBehaviour
{
private Image image; //牌的图片
private CardInfo cardInfo; //卡牌信息
private bool isSelected; //是否选中
void Awake()
{
image = GetComponent<Image>();
}
/// <summary>
/// 初始化图片
/// </summary>
/// <param name="cardInfo"></param>
public void InitImage(CardInfo cardInfo)
{
this.cardInfo = cardInfo;
image.sprite = Resources.Load("Images/Cards/" + cardInfo.cardName, typeof(Sprite)) as Sprite;
}
/// <summary>
/// 设置选择状态
/// </summary>
public void SetSelectState()
{
if (isSelected)
{
iTween.MoveTo(gameObject, transform.position - Vector3.up * 10f, 1f);
}
else
{
iTween.MoveTo(gameObject, transform.position + Vector3.up * 10f, 1f);
}
isSelected = !isSelected;
}
}
3.考虑玩家分为2种类型，先创建一个公共的基类，实现玩家公共的方法，比如增加一张卡牌、清空所有卡片、排序等；
public class Player : MonoBehaviour
{
protected List<CardInfo> cardInfos = new List<CardInfo>(); //个人所持卡牌
private Text cardCoutText;
void Start()
{
cardCoutText = transform.Find("HeapPos/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();
}
protected void Sort()
{
cardInfos.Sort();
cardInfos.Reverse();
}
}
4.添加第一种玩家（自身玩家）PlayerSelf，继承Player，并挂载到Player0对象上；
实现整理手牌的逻辑：发牌后，从中间的位置，根据大小依次将牌展开；
获取牌面点击事件，将牌选中或取消选中；
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>();
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]);
var targetPos = startPos + Vector3.right * offsetX * i;
card.transform.SetAsLastSibling();
//动画移动
iTween.MoveTo(card, targetPos, 2f);
cards.Add(card);
}
}
public void DestroyAllCards()
{
cards.ForEach(Destroy);
cards.Clear();
}
/// <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 (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();
}
}
}
5.添加另一种玩家（对手玩家）PlayerOther，继承Player，并挂载到Player1，Player2对象上；
暂时没有实现任何其他功能：
public class PlayerOther : Player
{
}三、实现发牌逻辑
在Camera上添加卡牌管理脚本：CardManager
1.实现洗牌逻辑，这里用生成GUID随机性后排序，达到洗牌的目的；
2.记录当前发牌回合，每发一张牌，跳转给下一个玩家；
3.记录当前玩牌回合（将来可能用到），每玩一局，跳转下个玩家开始发牌；
4.发牌逻辑：
设置牌堆的显示，动画依次给每位玩家发一张卡牌，发完牌后，隐藏牌堆，并将玩家的卡牌排序并展示；
public class CardManager : MonoBehaviour
{
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 static CardManager _instance; //单例
public CardManagerStates cardManagerState;
private string[] cardNames; //所有牌集合
private int termStartIndex = 0; //回合开始玩家索引
private int termCurrentIndex = 0; //回合当前玩家索引
private List<GameObject> covers = new List<GameObject>(); //背面卡牌对象，发牌结束后销毁
void Awake()
{
_instance = this;
cardNames = GetCardNames();
}
/// <summary>
/// 洗牌
/// </summary>
public void ShuffleCards()
{
//进入洗牌阶段
cardManagerState = CardManagerStates.ShuffleCards;
cardNames = cardNames.OrderBy(c => Guid.NewGuid()).ToArray();
}
/// <summary>
/// 发牌
/// </summary>
public IEnumerator DealCards()
{
//进入发牌阶段
cardManagerState = CardManagerStates.DealCards;
//显示牌堆
heapPos.gameObject.SetActive(true);
playerHeapPos.ToList().ForEach(s => { s.gameObject.SetActive(true); });
foreach (var cardName in cardNames)
{
//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;
covers.Add(cover);
iTween.MoveTo(cover, playerHeapPos[termCurrentIndex].position, 0.3f);
yield return new WaitForSeconds(1 / dealCardSpeed);
//下一个需要发牌者
SetNextPlayer();
}
//隐藏牌堆
heapPos.gameObject.SetActive(false);
playerHeapPos[0].gameObject.SetActive(false);
//显示玩家手牌
Players.ToList().ForEach(s =>
{
var player0 = s as PlayerSelf;
if (player0 != null)
{
player0.GenerateAllCards();
}
});
//动画结束，进入叫牌阶段
yield return new WaitForSeconds(2f);
covers.ForEach(Destroy);
cardManagerState = CardManagerStates.Bid;
}
/// <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>
/// 获取下个玩家
/// </summary>
/// <returns></returns>
private void SetNextPlayer()
{
termCurrentIndex = (termCurrentIndex + 1) % Players.Length;
}
/// <summary>
/// 切换开始回合玩家
/// </summary>
public void SetNextTerm()
{
termStartIndex = (termStartIndex + 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;
}
//for test
public void OnTestClick()
{
ClearCards();
ShuffleCards();
StartCoroutine(DealCards());
}
}
四、总结
其实发牌后的动画，可以由override基类的方法，交由Player子类处理，不用CardManager集中管理，大家可以优化一下。
大体逻辑完成，我们验证下效果吧：
