Egret学习-坦克大战开发(五)

 1 public randomNum(minNum:number,maxNum:number){ 
 2         switch(arguments.length){ 
 3             case 1: 
 4                 return Math.random()*minNum+1;
 5             case 2:
 6                 return Math.random()*(maxNum-minNum+1)+minNum;
 7             default: 
 8                 return 0;
 9         }
10     }

 1     private doEnemyAI() {
 2         // 敌方坦克AI,随机发射，转向，移动
 3         if(Main.enemyList.length <= 0) {
 4             return;
 5         }
 6         for(let idx=Main.enemyList.length; idx>=0; idx--) {
 7             let enemy:Tank = Main.enemyList[idx];
 8             if(enemy == null) {
 9                 continue;
10             }
11             let rand = this.randomNum(1,100);//
12             if(rand >= 98) {// 转向 5%
13                 enemy.turnRand();
14             } else if(rand >= 96) {// 发射子弹 10%
15                 enemy.shoot();
16             } else {// 移动 94%
17                 enemy.moveFront();
18             }
19         }
20     }

    private handleBullet() {
        // 子弹逻辑
        if(Main.bulletList.length <= 0) {
            return;
        }
            
        for(let idx=Main.bulletList.length; idx>=0; idx--) {
            let bullet:Bullet =  Main.bulletList[idx];
            if(bullet == null) {
                continue;
            }
            bullet.move()
            // 判断是否到边界
            if(bullet.x <= 0 || bullet.y <= 0) {
                // 移除子弹
                Main.bulletList.splice(idx,1);
                bullet.parent.removeChild(bullet);
                continue;
            }
            if(bullet.x >= 640 || bullet.y >= 640) {
                // 移除子弹
                Main.bulletList.splice(idx,1);
                bullet.parent.removeChild(bullet);
                continue;
            }
            // 判断是否撞倒墙
            let tile:tiled.TMXTile = this.layerZhuan.getTile(bullet.x, bullet.y);
            if(tile) {
                console.log(‘---x,y‘, tile.x, tile.y);
                // 移除子弹
                Main.bulletList.splice(idx,1);
                bullet.parent.removeChild(bullet);
                // 移除砖块
                this.layerZhuan.clearTile(tile.tileX, tile.tileY);
                tile.bitmap.parent.removeChild(tile.bitmap);
                continue;
            }
            // 判断是否撞到石头
            tile = null;
            tile = this.layerShitou.getTile(bullet.x, bullet.y);
            if(tile) {
                // 移除子弹
                Main.bulletList.splice(idx,1);
                bullet.parent.removeChild(bullet);
            }
            // 判断是否撞倒其他坦克
            for(let j=Main.enemyList.length; j>=0; j--) {
                let enemy:Tank = Main.enemyList[j];
                if(enemy == null) {
                    continue;
                }
                
                if(enemy.hitTestPoint(bullet.x, bullet.y)) {
                    if(bullet.tank.camp == ‘player‘) {
                        Main.enemyList.splice(j,1);
                        enemy.parent.removeChild(enemy);
                    }
                }
            }
            // 判断是否撞到玩家
            if(this.player1 && bullet.tank.camp == ‘enemy‘) {
                if(this.player1.hitTestPoint(bullet.x, bullet.y)) {
                    this.player1.parent.removeChild(this.player1);
                    this.player1 = null;
                }
            }
        }
    }