flash 游戏设计笔记：坚持几秒

  

 

 

   昨晚玩了一个这样的小游戏，感觉很有意思。于是尝试写一个来写一下。最近心情老是漂浮不定，可能老了，面对现实的残酷，其实不想找太多借口，一个网友说的很对，我需要反省一下，很多事情不是活在理想的国度。但是有一些事情还是必须保持一种状态，这个是起码每天都是要坚持的事情。 

    以后不再找借口，给自己找理由。

 

下面不作解析；

 

package {import flash.display.Sprite;import flash.events.*;import flash.utils.*;import flash.display.*;import flash.external.ExternalInterface;import flash.text.*;public class Main extends Sprite{private var gameObjectList:Array=[];//游戏对象private var boxList:Array=[];//矩形数组private var wallList:Array=[];//墙数组private var player:Player;//玩家private var startTime:int;//开始时间private var speed:Number=5.0;//初始化速度private var timerMsg:TextField;//时间显示public function Main(){if (stage){onInit();}else{addEventListener(Event.ADDED_TO_STAGE,onInit);}}private function onInit(event:Event=null):void{removeEventListener(Event.ADDED_TO_STAGE,onInit);creatSprite();timerMsg=new TextField();addChild(timerMsg);timerMsg.textColor=0xffffff;timerMsg.x=20;timerMsg.y=10;player=new Player(50,50,0xff0000);player.addEventListener("gameStart",startGame);addChild(player);player.x=stage.stageWidth/2;player.y=stage.stageHeight/2;}private function startGame(event:Event):void{startTime=getTimer();player.removeEventListener("gameStart",startGame);addEventListener(Event.ENTER_FRAME,gameLoop);}private function gameLoop(event:Event):void{showTime();//进行运动for (var i:int=0; i<4; i++){var rect:RectBox=boxList[i];rect.vx=Math.cos(rect.angle)*speed;rect.vy=Math.sin(rect.angle)*speed;rect.x+=rect.vx*rect.diretionX;rect.y+=rect.vy*rect.diretionY;if(rect.hitTestObject(wallList[0])){rect.diretionY=rect.diretionY*(-1);}if(rect.hitTestObject(wallList[1])){rect.diretionY=rect.diretionY*(-1);}if(rect.hitTestObject(wallList[2])){rect.diretionX=rect.diretionX*(-1);}if(rect.hitTestObject(wallList[3])){rect.diretionX=rect.diretionX*(-1);}}//速度递增speed+=0.01;trace(speed);checkCollision();}//创建图形private function creatSprite():void{//创建墙var up_wall:Wall=new Wall(stage.stageWidth,30,0x333333);var down_wall:Wall=new Wall(stage.stageWidth,30,0x333333);down_wall.y=stage.stageHeight-30;var left_wall:Wall=new Wall(30,stage.stageHeight,0x333333);var right_wall:Wall=new Wall(30,stage.stageHeight,0x333333);right_wall.x=stage.stageWidth-30; addChild(up_wall);addChild(down_wall);addChild(left_wall);addChild(right_wall);wallList.push(up_wall,down_wall,left_wall,right_wall);//创建运动的矩形var rectA:RectBox=new RectBox(100,60,0x0000ff);addChild(rectA);rectA.x=100;rectA.y=70;rectA.angle=getAngle(rectA,stage.stageWidth/2,stage.stageHeight/2);var rectB:RectBox=new RectBox(80,60,0x0000ff);addChild(rectB);rectB.x=450;rectB.y=70;rectB.angle=getAngle(rectB,stage.stageWidth/2,stage.stageHeight/2);var rectC:RectBox=new RectBox(100,40,0x0000ff);addChild(rectC);rectC.x=100;rectC.y=350;rectC.angle=getAngle(rectC,stage.stageWidth/2,stage.stageHeight/2);var rectD:RectBox=new RectBox(40,70,0x0000ff);addChild(rectD);rectD.x=450;rectD.y=350;rectD.angle=getAngle(rectD,stage.stageWidth/2,stage.stageHeight/2);boxList.push(rectA,rectB,rectC,rectD);gameObjectList.push(up_wall,down_wall,left_wall,right_wall,rectA,rectB,rectC,rectD);}//检测碰撞private function checkCollision():void{for (var i:int=0; i<gameObjectList.length; i++){if (player.hitTestObject(gameObjectList[i])){trace("碰撞了");var endTime:int=getTimer();var result:int=(endTime-startTime);removeEventListener(Event.ENTER_FRAME,gameLoop);showResult(result);player.stop();break;}}}//显示结果private function showResult(value:int):void{var result:Number=value/1000;ExternalInterface.call("alert","你坚持了:"+result+"秒");}private function showTime():void{var endTime:int=getTimer(); var result:int=(endTime-startTime);timerMsg.text="你坚持了:"+result/1000+"秒";}//获取角度private function getAngle(obj:RectBox,x:Number,y:Number):Number{return Math.atan2(y - obj.y,x - obj.x);}}}

 

基础类

package {import flash.display.Sprite;import flash.events.*;public class GameObject extends Sprite{public function GameObject(){} }}

 

 

玩家

package {import flash.display.Sprite;import flash.events.*;public class Player extends GameObject{public function Player(width:Number,height:Number,color:uint){this.graphics.beginFill(color);this.graphics.drawRect(-width/2,-height/2,width,height);this.graphics.endFill();addEventListener(MouseEvent.MOUSE_DOWN,onStartMove);addEventListener(MouseEvent.MOUSE_UP,ooStopMove);}private function onStartMove(event:MouseEvent):void{this.startDrag();this.dispatchEvent(new Event("gameStart"));}private function ooStopMove(event:MouseEvent):void{this.stopDrag();}//停止public function stop():void{this.stopDrag();removeEventListener(MouseEvent.MOUSE_DOWN,onStartMove);removeEventListener(MouseEvent.MOUSE_UP,ooStopMove);}}}

 

四个矩形框

package {import flash.display.Sprite;import flash.events.*;public class RectBox extends GameObject{public var angle:Number;public var diretionX:int=1;//方向public var diretionY:int=1;//方向public var vx:Number;public var vy:Number;public function RectBox(width:Number,height:Number,color:uint){this.graphics.beginFill(color);this.graphics.drawRect(-width/2,-height/2,width,height);this.graphics.endFill(); } }}

 

墙

package {import flash.display.Sprite;import flash.events.*; import flash.display.Shape;public class Wall extends GameObject{public function Wall(width:Number,height:Number,color:uint){this.graphics.beginFill(color);this.graphics.drawRect(0,0,width,height);this.graphics.endFill(); } }}