Cocos2d-js05-添加身体和移动身体

//检测蛇是否吃到食物
if(this._head.now_col==this._food.now_col && this._head.now_row==this._food.now_row){
//播放音效
cc.audioEngine.playEffect(res.bg_effect);
cc.log("蛇吃到了食物！");
//添加分数
this.m_score += 100;
score.setString("分数:"+this.m_score);
//重置食物的位置
this._food.now_row = Math.round(Math.random()*9);
this._food.now_col = Math.round(Math.random()*9);
this._food.setPosition(cc.p(this._food.now_col*63,this._food.now_row*63));

//添加蛇的身体
this._snakeBody = SnakeGame.create(2);
this._snakeBody.setScale(0.9);
if(SNAKE_BODY.length == 0 || SNAKE_BODY.length == null){
switch (dir){
case SNAKE_DIR.UP:
this._snakeBody.now_row = this._head.now_row - 1;
this._snakeBody.now_col = this._head.now_col;
break;
case SNAKE_DIR.DOWN:
this._snakeBody.now_row = this._head.now_row + 1;
this._snakeBody.now_col = this._head.now_col;
break;
case SNAKE_DIR.LEFT:
this._snakeBody.now_row = this._head.now_row;
this._snakeBody.now_col = this._head.now_col + 1;
break;
case SNAKE_DIR.RIGHT:
this._snakeBody.now_row = this._head.now_row;
this._snakeBody.now_col = this._head.now_col - 1;
break;
default :break;
}
cc.log("里面没有身体，添加一个！");

}else{
switch (dir){
case SNAKE_DIR.UP:
this._snakeBody.now_row = this._snakeBody.now_row - 1;
this._snakeBody.now_col = this._snakeBody.now_col;
break;
case SNAKE_DIR.DOWN:
this._snakeBody.now_row = this._snakeBody.now_row + 1;
this._snakeBody.now_col = this._snakeBody.now_col;
break;
case SNAKE_DIR.LEFT:
this._snakeBody.now_row = this._snakeBody.now_row;
this._snakeBody.now_col = this._snakeBody.now_col + 1;
break;
case SNAKE_DIR.RIGHT:
this._snakeBody.now_row = this._snakeBody.now_row;
this._snakeBody.now_col = this._snakeBody.now_col - 1;
break;
default :break;
}
cc.log("里面有身体，添加一个！");
}
//添加到数组中去
SNAKE_BODY.push(this._snakeBody);
this.getChildByTag(111).addChild(this._snakeBody,2);
this._snakeBody.setPosition(cc.p(this._snakeBody.now_col*63,this._snakeBody.now_row*63));
}

//移动所有的身体
if(SNAKE_BODY.length != 0){
var Snode = null;
for(var i = SNAKE_BODY.length - 1; i >= 0; i--){
Snode = SNAKE_BODY[i];
if(i == 0){
switch (dir){
case SNAKE_DIR.UP:
Snode.now_row = this._head.now_row - 1;
Snode.now_col = this._head.now_col;
break;
case SNAKE_DIR.DOWN:
Snode.now_row = this._head.now_row + 1;
Snode.now_col = this._head.now_col;
break;
case SNAKE_DIR.LEFT:
Snode.now_row = this._head.now_row;
Snode.now_col = this._head.now_col + 1;
break;
case SNAKE_DIR.RIGHT:
Snode.now_row = this._head.now_row;
Snode.now_col = this._head.now_col - 1;
break;
default :break;
}
}else{
Snode.now_col = SNAKE_BODY[i-1].now_col;
Snode.now_row = SNAKE_BODY[i-1].now_row;
}
Snode.setPosition(cc.p(Snode.now_col*63,Snode.now_row*63));
}
}

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