【cocos2d-html5】 怎么使用cocos2d-html5 制作基于tilemap的游戏教程：第一部分

好久没有写博客了，自从自己用了云笔记后，喜欢在云笔记里记录，但最近发现自己cocos2d-html5的文章还是比较少，所以把最近通过别人的笔记cocos2d的关于tiled地图使用的文章转成了ch5终于跑起来了。

参考原文：
http://www.raywenderlich.com/1163/how-to-make-a-tile-based-game-with-cocos2d

中文参考稿：
http://www.cnblogs.com/andyque/archive/2011/04/11/2012852.html

关于如何创建 tiled地图文件tmx 文件的内容，请参考以上的中文参考稿，已经写的比较清楚了。唯一不清楚的就是tmx文件里面要修改你的图片相对路径：
如：
 <tileset firstgid="1" name="tmw_desert_spacing" tilewidth="32" tileheight="32" spacing="1" margin="1">
  <image source="tmw_desert_spacing.png" trans="ff00ff" width="265" height="199"/>
 </tileset>

本文采用的cocos2d-html5版本为v2.1.5

现把我的翻译脚本copy上来供大家参考：

var MyLayer = cc.Layer.extend({
    isMouseDown: false,
    helloImg: null,
    helloLabel: null,
    circle: null,
    sprite: null,
    size: null,
    _tileMap: null,
    player: null,
    init: function () {
        this._super();
        // ask director the window size
        this.size = cc.Director.getInstance().getWinSize();
        // 加载tmx
        var tileMap = cc.TMXTiledMap.create(tmx_001);
        this._tileMap = tileMap;
        this.addChild(this._tileMap, 1, 0);
        // 获得对象层
        var objectLayer = tileMap.getObjectGroup("Objects");
        var array = objectLayer.getObjects();
        var spawnPoint = array[0];
        var objX = spawnPoint["x"];
        var objY = spawnPoint["y"];
        var width = spawnPoint["width"];
        var height = spawnPoint["height"];

        this.player = cc.Sprite.create(s_Player);
        this.player.setPosition(cc.p(objX, objY));
        this.addChild(this.player, 1, 0);
        this.setViewpointCenter(this.player.getPosition());

        // 添加事件监听
        this.setTouchEnabled(true);
    },
    registerWithTouchDispatcher: function () {
        // CCDirector::sharedDirector()->getTouchDispatcher()->addTargetedDelegate(this, 0, true);
        cc.Director.getInstance().getTouchDispatcher().addTargetedDelegate(this, 0, true);
    },
    onTouchEnded: function (touch, event) {
        var touchLocation = touch.getLocation();
        touchLocation = this.convertToNodeSpace(touchLocation);

        //获得精灵当前位置
        var playerPos = this.player.getPosition();
        console.log("touchLocation.x: " + touchLocation.x);
        console.log("touchLocation.y: " + touchLocation.y);
        console.log("playerPos.x :" + playerPos.x);
        console.log("playerPos.y :" + playerPos.y);

        /*
         计算出touch点和精灵的位置之差。我们必须基于touch位置选择一个方向，因此，
         首先，我们需要计算出是上下移动还是左右移动。然后，我们比较正负值，决定具体的方向。
         */
        var diff = cc.pSub(touchLocation, playerPos);
        if (Math.abs(diff.x) > Math.abs(diff.y)) {
            if (diff.x > 0) {
                playerPos.x += this._tileMap.getTileSize().width;
            } else {
                playerPos.x -= this._tileMap.getTileSize().width;
            }
        } else {
            if (diff.y > 0) {
                playerPos.y += this._tileMap.getTileSize().height;
            } else {
                playerPos.y -= this._tileMap.getTileSize().height;

            }

        }

        if (playerPos.x <= (this._tileMap.getMapSize().width * this._tileMap.getTileSize().width) &&
            playerPos.y <= (this._tileMap.getMapSize().height * this._tileMap.getTileSize().height) &&
            playerPos.y >= 0 && playerPos.x >= 0) {

            // 设置精灵位置
            this.setPlayerPosition(playerPos);
        }
        this.setViewpointCenter(this.player.getPosition());
    },
    onTouchBegan: function (touches, event) {
        // 返回true表明接受这个触摸
        return true;
    },
    /**
     * 设置玩家所在的视窗
     * @param position
     * @returns {*}
     */
    setViewpointCenter: function (position) {
        // 屏幕大小
        var winSize = this.size;
        var x = Math.max(position.x, winSize.width / 2);
        var y = Math.max(position.y, winSize.height / 2);
        x = Math.min(x, (this._tileMap.getMapSize().width * this._tileMap.getTileSize().width) - winSize.width / 2);
        y = Math.min(y, (this._tileMap.getMapSize().height * this._tileMap.getTileSize().height) - winSize.height / 2);
        //console.log("x2 is : " + x + "    y2 is : " + y);
        // 实际位置
        var actualPosition = cc.p(x, y);

        // 坐标中心
        var centerOfView = cc.p(winSize.width / 2, winSize.height / 2);

        //console.log("centerOfView x" + centerOfView.x + "y " + centerOfView.y);
        // 计算两点间的差分。
        var viewPoint = cc.pSub(centerOfView, actualPosition);
        console.log("视窗 x ：" + viewPoint.x + " 视窗 y ：" + viewPoint.y);
        // 设置当前层的视窗
        this.setPosition(viewPoint);
    },
    setPlayerPosition: function (viewPoint) {
        console.log("精灵位置 x " + viewPoint.x);
        console.log("精灵位置 y " + viewPoint.y);
        this.player.setPosition(viewPoint);
    }
});


var MyScene = cc.Scene.extend({
    onEnter: function () {
        this._super();
        var layer = new MyLayer();
        this.addChild(layer);
        layer.init();
    }
});

如果有了这个文章，你还不能跑起来，那我只能发源码给你了，把邮箱发过来。

附件为源码和源码目录结构。