Egret学习-坦克大战开发-总结

Posted 2020-11-25 woaitech

用了几天开发游戏，现在回头整理下知识

首先附上源码，下载地址

http://www.521100.net/forum.php?mod=viewthread&tid=26&extra=page%3D1

 

1.Egret 主循环，用于实现业务逻辑更新游戏进度

        egret.lifecycle.addLifecycleListener((context) => {
            context.onUpdate = () => {
                if(!this.init) {
                    return;
                }
                if(this.player1) {
                    this.player1.move();
                }
                this.doEnemyAI();
                this.handleBullet();
            }
        })

2.碰撞检测

this.player1.hitTestPoint(bullet.x, bullet.y)

3.随机数的生成

    public randomNum(minNum:number,maxNum:number){ 
        switch(arguments.length){ 
            case 1: 
                return Math.random()*minNum+1;
            case 2:
                return Math.random()*(maxNum-minNum+1)+minNum;
            default: 
                return 0;
        }
    }

4.点击事件处理

开启

bg.touchEnabled = true;
bg.addEventListener(egret.TouchEvent.TOUCH_TAP, this.onBgTouch, this);

处理方法

    /* 响应背景的点击事件 */
    private onBgTouch(e) {
        let x = e.stageX;
        let y = e.stageY;

        this.player1.targetX = parseInt(x);
        this.player1.targetY = parseInt(y) ;
    }

5.画一个图形，圆形

        var shp:egret.Shape = new egret.Shape();
        shp.graphics.beginFill( 0xffff00, 1);
        shp.graphics.drawCircle(0, 0, 5);
        shp.graphics.endFill();
        this.addChild(shp);    

6.加载一个图片

    private createBitmapByName(name: string) {
        let result = new egret.Bitmap();
        let texture: egret.Texture = RES.getRes(name);
        result.texture = texture;
        return result;
    }