Egret learning - Battle City Development - Summary

With a few days to develop the game, now back finishing Knowledge

First attach the source code, Download

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

 

1.Egret main loop for implementing business logic game progress update

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

2. Collision Detection

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

3. The random number generating

    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. Click event handler

Open

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

Approach

    / * In response to the click event context * / 
    Private onBgTouch (E) { 
        the let X = e.stageX; 
        the let Y = e.stageY; 

        the this .player1.targetX = the parseInt (X);
         the this .player1.targetY = the parseInt (Y) ; 
    }

5. draw a pattern, circular

        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. Load a picture

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