unity教程之制作连连看小教程
哈哈，周末了总算有时间完善一下做的连连看了，顺便写个小教程分享给大家，哇哈哈～文章出处【狗刨学习网】
开始正题：
连连看的规则大家应该都知道，选中的两个图片相同，并且不能多于两个拐点能连在一块，这两个图片就可以消掉；
连通的类型：
1 直线型；
2 一个拐点；
3 两个拐点；
下面开始介绍这三种连通类型
直线型：
直线型分两种，一种是横向，一种是竖向；
首先是横向连接
http://www.gopedu.com/files/user/2015/01-19/09081605395f612842.jpg?4.5.1
A,B两点的x坐标相同，图片类型相同，从A点开始到B点检测，如果AB两点之间没有其他图片就销毁AB两个图片，竖向的和横向的类似
一个拐点：
http://www.gopedu.com/files/user/2015/01-19/0909051987b3633879.jpg?4.5.1
AB两点的x坐标和y坐标都不相同的时候开始检测一个拐点是否可以连接，通过AB两点计算出CD两点，然后分别检测AC，BC,AD,BD是否可以通过直线型连接到一起，显然AB两点可以通过A>C,C>B连接到一起，
两个拐点：
http://www.gopedu.com/files/user/2015/01-19/090946ad9865266879.jpg?4.5.1
AB两点，从A开始，横向和竖向把所有和A能直线连接的点找出来，用这些点和B点做一个拐点的检测，显然A点下边的那个点可以通过绿色的那个点可以通过一个拐点的方式和B点连接起来，
哈哈，是不是很简单啊，上边的就是连连看的核心内容
接下来详细介绍一下各个脚本的作用，（哇哈哈，以注释的形式给大家介绍吧）
GameManager.cs游戏的核心代码，产生图片，判断是否可以销毁等
[*] using UnityEngine;
[*] using System.Collections;
[*] using System.Collections.Generic;
[*]
[*] public class GameManager : MonoBehaviour
[*] {
[*] public DrawLine drawLine;//画线
[*] public GameObject tilePrefab;//tile的预制
[*] public List<Tile> tiles;//开始实例化的时候存放tile
[*] public List<Tile> _tiles;//存放随机摆放的tile
[*] public List<Tile> tilesEdge;//为了边界处可以有拐点，把棋盘四周的tile放在这里，这里的tile看不到
[*] public int x, y;//棋牌的大小，两个数必须是偶数
[*] private Tile tileA;
[*] private Tile tileB;
[*] private bool destroy;
[*] private Vector3 mousePos;
[*] private enum stepType//控制游戏的状态
[*] {
[*] one,
[*] two,
[*] three
[*] }
[*] private stepType _stepType;
[*]
[*] void Start ()
[*] {
[*] this.gameObject.transform.position = Vector3.zero;
[*] Spawn ();
[*] _stepType = stepType.one;
[*] }
[*]
[*] private void Spawn ()//实例化tile
[*] {
[*] float num = (x * y - (2 * x + 2 * y - 4)) * 0.5f;
[*] for (int i = 0; i <num; i ++) {
[*] int idTex = Random.Range (20, 45);
[*] GameObject obj = Instantiate (tilePrefab) as GameObject;
[*] GameObject obj2 = Instantiate (tilePrefab) as GameObject;
[*] Tile tile = obj.GetComponent<Tile> ();
[*] Tile tile2 = obj2.GetComponent<Tile> ();
[*] tile.Init (idTex);
[*] tile2.Init (idTex);
[*] tiles.Add (tile);
[*] tiles.Add (tile2);
[*] }
[*] for (int i = 0; i<((2*x+2*y) -4); i++) {//实例化边缘的tile
[*] GameObject obj = Instantiate (tilePrefab) as GameObject;
[*] obj.name = "edage";
[*] Tile tile = obj.GetComponent<Tile> ();
[*] tilesEdge.Add (tile);
[*] }
[*] CreatTile ();
[*] for (int i = 0; i < _tiles.Count; i++) {
[*] _tiles .transform.name = i.ToString ();
[*] _tiles .id = i;
[*] }
[*] this.transform.position = new Vector3 (-(x / 2.0f - 0.5f), -(y / 2.0f - 0.5f), 0);
[*] }
[*]
[*] private void CreatTile ()//随机摆放tile，如果是边缘的就放在边缘位置
[*] {
[*] int idTex = 0;
[*] float _y = 0.0f;
[*] for (int i = 0; i < y; i ++) {
[*] float _x = 0.0f;
[*] for (int j = 0; j < x; j ++) {
[*] if (i == 0 || j == 0 || i == y - 1 || j == x - 1) {
[*] tilesEdge .transform.position = new Vector3 (_x, _y, 0);
[*] tilesEdge .pos = new Vector2 (_x, _y);
[*] tilesEdge .transform.rotation = new Quaternion (0, 0, 180, 0);
[*] tilesEdge .transform.parent = this.gameObject.transform;
[*] _tiles.Add (tilesEdge );
[*] tilesEdge .transform.localScale = Vector3.zero;
[*] tilesEdge .type = false;
[*] tilesEdge.RemoveAt (0);
[*] } else {
[*] int id = Mathf.FloorToInt (Random.Range (0, tiles.Count));
[*] tiles .transform.position = new Vector3 (_x, _y, 0);
[*] tiles .pos = new Vector2 (_x, _y);
[*] tiles .transform.rotation = new Quaternion (0, 0, 180, 0);
[*] tiles .transform.parent = this.gameObject.transform;
[*] _tiles.Add (tiles );
[*] tiles.RemoveAt (id);
[*] }
[*] _x += 1;
[*] }
[*] _y += 1;
[*] }
[*] }
[*]
[*] private void SelectTile ()//开始选择图片，通过射线方式选中，如果tileA和tileB不相同，则tileA等于tileB开始下一个检测
[*] {
[*] Ray ray = Camera.mainCamera.ScreenPointToRay (mousePos);
[*] RaycastHit hit;
[*] int mask = 1 << 8;
[*] if (Physics.Raycast (ray, out hit, mask)) {
[*] if (tileA == null) {
[*] tileA = hit.transform.GetComponent<Tile> ();
[*] tileA.SetTileTexture (1);
[*] // print ("tileA = hit.transform.GetComponent<Tile> ();" + tileA.transform.name);
[*] } else {
[*] tileB = hit.transform.GetComponent<Tile> ();
[*] tileB.SetTileTexture (1);
[*] // print ("tileB = hit.transform.GetComponent<Tile> ();" + tileB.transform.name);
[*] Compare (tileA, tileB);
[*] if (tileA == null ;; tileB == null) {
[*]
[*] // print ("a and b is null");
[*] }
[*] }
[*] // hit.transform.GetComponent
[*] }
[*] }
[*]
[*] private void Compare (Tile tile1, Tile tile2)//比较两个点是否可以连接到一起
[*] {
[*] // same card
[*] _stepType = stepType.one;
[*] drawLine.waypoints.Add (tile1.transform); //第一个选择的tile是画线的起始位置，
[*] drawLine.transform.position = tile1.transform.position;
[*] destroy = false;
[*] print ("compare");
[*] if (tile1.pos.x == tile2.pos.x ;; tile1.pos.y == tile2.pos.y) {如果选中的是同一个图片返回
[*] tileA.SetTileTexture (0);
[*] // tileB.SetTileTexture (0);
[*] tileA = tileB;
[*] tileB = null;
[*] // tileA.SetTileTexture (1);
[*] return;
[*] } else if (tile1.pos.x == tile2.pos.x ;; tile1.pos.y != tile2.pos.y) {//如果两点的x相等，竖向检测
[*] print ("check y");
[*] destroy = CheckY (tile1, tile2);
[*] if (destroy)
[*] drawLine.waypoints.Add (tile2.transform);
[*] } else if (tile1.pos.x != tile2.pos.x ;; tile1.pos.y == tile2.pos.y) {//如果两点的y相等，横向检测
[*] print ("check x");
[*] destroy = CheckX (tile1, tile2);
[*] if (destroy)
[*] drawLine.waypoints.Add (tile2.transform);
[*] }
[*] if (!destroy) {//不符合直线连接方式的开始进行一个拐点的检测
[*] _stepType = stepType.two;
[*] destroy = CheckTwoStep (tile1, tile2);
[*] // print ("destroy = CheckTwoStep (tile1, tile1);:" + destroy);
[*] print ("check two step");
[*] if (!destroy) {//不符合直线和一个拐点检测的开始进行两个拐点的检测
[*] _stepType = stepType.three;
[*] destroy = CheckThreeStep (tile1, tile2);
[*] print ("check three:" + destroy);
[*] print ("tile1.idTex:" + tile1.idTex + "tile1.idTex:" + tile1.idTex);
[*] }
[*] }
[*] if (destroy) {//如果符合销毁条件销毁图片，并开始画线
[*] tile1.transform.localScale = Vector3.zero;
[*] tile2.transform.localScale = Vector3.zero;
[*] tile1.type = false;
[*] tile2.type = false;
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