程序帮助需要在ActionScript 3游戏

问题描述

我一直在AS3上做这个游戏，基本工作。我遇到的麻烦是在游戏开始时出现开始菜单，而当玩家死亡时也会出现。我一直在尝试。可见的代码，但似乎并没有工作。问题：我在游戏中添加了哪些代码，使游戏启动时出现启动按钮，玩家何时死亡。代码：

 包{
 import flash.display.MovieClip; 
 import flash.events.KeyboardEvent; 
 import flash.ui.Keyboard; 
 import flash.events.Event; //用于ENTER_FRAME事件
 
 public class Main扩展MovieClip {
 
 //常量
 const gravity：Number = 1.5; //游戏的引力
 const dist_btw_obstacles：Number = 300; //两个障碍物之间的距离
 const ob_speed：Number = 8; //障碍物的速度
 const jump_force：Number = 15; //强制跳转
 
 //变量
 var player：Player = new Player（）; 
 var lastob：Obstacle = new Obstacle（）; // varible存储障碍数组中的最后一个障碍
 var barriers：Array = new Array（）; //存储所有障碍物的数组
 var yspeed：Number = 0; //代表鸟的垂直速度的变量
 var score：Number = 0; //表示分数的变量
 
 public function Main（）{
 init（）; 
 
 
函数init（）：void {
 //初始化所有变量
 player = new Player（）; 
 lastob = new Obstacle（）; 
障碍=新阵列（）; 
 yspeed = 0; 
分数= 0; 
 
 //将玩家添加到舞台中央
 player.x = stage.stageWidth / 2; 
 player.y = stage.stageHeight / 2; 
 addChild（player）; 
 
 //创建3个障碍（）
 createObstacle（）; 
 createObstacle（）; 
 createObstacle（）; 
 
 //添加EnterFrame EventListeners（每帧调用一次）和KeyBoard EventListeners 
 addEventListener（Event.ENTER_FRAME，onEnterFrameHandler）; 
 stage.addEventListener（KeyboardEvent.KEY_UP，key_up）; 
 
 $ b私钥函数key_up（event：KeyboardEvent）{
 if（event.keyCode == Keyboard.SPACE）{
 //如果空格被按下，鸟
 yspeed = -jump_force; 
 
 
 
函数重启（）{
 if（contains（player））
 removeChild（player）; （包括（障碍物[i]）&&障碍物[i]！=空）的
（var i：int = 0; i< obstacle.length; ++ i） 
 removeChild（障碍[i]）; 
障碍[i] = null; 
} 
 barriers.slice（0）; 
 init（）; 
 
 
函数onEnterFrameHandler（event：Event）{
 //更新播放器
 yspeed + = gravity; 
 player.y + = yspeed; 
 
 //如果玩家接触地面，重新启动
 if（player.y + player.height / 2> stage.stageHeight）{
 restart（）; 
} 
 
 //不要让小鸟超出屏幕
 if（player.y  -  player.height / 2  player.y = player.height / 2; 
 
 
 //更新障碍
 for（var i：int = 0; i< obstacle.length; ++ i）{
 updateObstacle（i）; 
} 
 
 //显示分数
 scoretxt.text = String（分数）; 
} 
 
 //这个函数更新障碍
函数updateObstacle（i：int）{
 var ob：Obstacle =障碍物[i]; 
 
 if（ob == null）
 return; 
 ob.x  -  = ob_speed; 
 
 if（ob.x  //如果障碍物到达舞台的左侧，则将其位置改变到最后一个障碍物的后面
 changeObstacle（OB）; 
} 
 
 //如果这只小鸟遇到障碍物，那么重新启动游戏
 if（ob.hitTestPoint（player.x + player.width / 2，player.y + player .height / 2，true）
 || ob.hitTestPoint（player.x + player.width / 2，player.y  -  player.height / 2，true）
 || ob.hitTestPoint（player .x  -  player.width / 2，player.y + player.height / 2，true）
 || ob.hitTestPoint（player.x  -  player.width / 2，player.y  -  player.height / 2 ，true））{
 restart（）; 
 
 
 //如果小鸟没有碰到障碍物，就增加得分
 if（（player.x  -  player.width / 2> ob.x + ob.width / 2）&&！ob.covered）{
 ++分数; 
 ob.covered = true; 
 
 
 
 //这个函数改变障碍物的位置，使它成为最后一个障碍物，并随机化它的y位置
 function changeObstacle ob：Obstacle）{
 ob.x = lastob.x + dist_btw_obstacles; 
 ob.y = 100 + Math.random（）*（stage.stageHeight-200）; 
 lastob = ob; 
 ob.covered = false; 
 
 
 //这个函数创建一个障碍
函数createObstacle（）{
 var ob：Obstacle = new Obstacle（）; 
 if（lastob.x == 0）
 ob.x = 800; 
 else 
 ob.x = lastob.x + dist_btw_obstacles; 
 ob.y = 100 + Math.random（）*（stage.stageHeight-200）; 
 addChild（ob）; 
 obstac.push（ob）; 
 lastob = ob; 
 
 
 
 $ b code 
 
 $ b 
}  
 
 pre 
 
 
 
   一个盒子（彩色填充但没有轮廓）。转换为 MovieClip 类型。给一个名字，例如：菜单 
 
这将是
菜单的容器。通过双击添加内容，添加
 graphics&在新的图层上的文字。或者，如果您在其他某些框架上已经有内容，则只需剪切框架，稍后在此新movieClip的时间轴内执行粘贴框架 li> 
 
转换后，它被添加到 Library 部分
（ ctrl + L ）。在库中找到它（菜单），然后右键单击，然后选择属性。在
 连结区段中，按一下[导出动作]。 班级名称应自动变为菜单。现在只需点击确定即可。
 
  
 
 
游戏代码中的示例用法（即：添加到屏幕或移除等） p> 
 
 
  //＃加载movieClip ... 
 var Menu_Screen：Menu = new Menu（）; //＃菜单是库中给出的链接名称
 
 //＃添加到屏幕... 
 gameContainer_MC.addChild（Menu_Screen）; 
 gameCcontainer_MC.removeChild（Menu_Screen）; 
 
 //＃控制movieClip ... 
 Menu_Screen.x = 50; 
 gameContainer_MC.Menu_Screen.x = 50; 
  
 
I have been making this game in AS3 and the basics work. The thing i am having trouble with is making a 'start' menu appear when the game starts but also when the player dies. I have been trying the .visible code but that didn't seem to work. 
Question: What code do i add to my game that makes the start button appear when the game starts but also when the player dies. Code:
package{
import flash.display.MovieClip;
import flash.events.KeyboardEvent;
import flash.ui.Keyboard;
import flash.events.Event; //used for ENTER_FRAME event

public class Main extends MovieClip{

    //constants
    const gravity:Number = 1.5;            //gravity of the game
    const dist_btw_obstacles:Number = 300; //distance between two obstacles
    const ob_speed:Number = 8;             //speed of the obstacle
    const jump_force:Number = 15;          //force with which it jumps

    //variables
    var player:Player = new Player();
    var lastob:Obstacle = new Obstacle();  //varible to store the last obstacle in the obstacle array
    var obstacles:Array = new Array();     //an array to store all the obstacles
    var yspeed:Number = 0;                 //A variable representing the vertical speed of the bird
    var score:Number = 0;                  //A variable representing the score

    public function Main(){
        init();
    }

    function init():void {
        //initialize all the variables
        player = new Player();
        lastob = new Obstacle();
        obstacles = new Array();
        yspeed = 0;
        score = 0;

        //add player to center of the stage the stage
        player.x = stage.stageWidth/2;
        player.y = stage.stageHeight/2;
        addChild(player);

        //create 3 obstacles ()
        createObstacle();
        createObstacle();
        createObstacle();

        //Add EnterFrame EventListeners (which is called every frame) and KeyBoard EventListeners
        addEventListener(Event.ENTER_FRAME,onEnterFrameHandler);
        stage.addEventListener(KeyboardEvent.KEY_UP, key_up);
    }

    private function key_up(event:KeyboardEvent){
        if(event.keyCode == Keyboard.SPACE){
            //If space is pressed then make the bird
            yspeed = -jump_force;
        }
    }

    function restart(){
        if(contains(player))
            removeChild(player);
            for(var i:int = 0; i < obstacles.length; ++i){
                if(contains(obstacles[i]) && obstacles[i] != null)
                removeChild(obstacles[i]);
                obstacles[i] = null;
            }
            obstacles.slice(0);
            init();
    }

    function onEnterFrameHandler(event:Event){
        //update player
        yspeed += gravity;
        player.y += yspeed;

        //restart if the player touches the ground
        if(player.y + player.height/2 > stage.stageHeight){
            restart();
        }

        //Don't allow the bird to go above the screen
        if(player.y - player.height/2 < 0){
            player.y = player.height/2;
        }

        //update obstacles
        for(var i:int = 0;i<obstacles.length;++i){
            updateObstacle(i);
        }

        //display the score
        scoretxt.text = String(score);
    }

    //This functions update the obstacle
    function updateObstacle(i:int){
        var ob:Obstacle = obstacles[i];

        if(ob == null)
        return;
        ob.x -= ob_speed;

        if(ob.x < -ob.width){
            //if an obstacle reaches left of the stage then change its position to the back of the last obstacle
            changeObstacle(ob);
        }

        //If the bird hits an obstacle then restart the game
        if(ob.hitTestPoint(player.x + player.width/2,player.y + player.height/2,true)
           || ob.hitTestPoint(player.x + player.width/2,player.y - player.height/2,true)
           || ob.hitTestPoint(player.x - player.width/2,player.y + player.height/2,true)
           || ob.hitTestPoint(player.x - player.width/2,player.y - player.height/2,true)){
            restart();
        }

        //If the bird got through the obstacle without hitting it then increase the score
        if((player.x - player.width/2 > ob.x + ob.width/2) && !ob.covered){
            ++score;
            ob.covered = true;
        }
    }

    //This function changes the position of the obstacle such that it will be the last obstacle and it also randomizes its y position
    function changeObstacle(ob:Obstacle){
        ob.x = lastob.x + dist_btw_obstacles;
        ob.y = 100+Math.random()*(stage.stageHeight-200);
        lastob = ob;
        ob.covered = false;
    }

    //this function creates an obstacle
    function createObstacle(){
        var ob:Obstacle = new Obstacle();
        if(lastob.x == 0)
        ob.x = 800;
        else
        ob.x = lastob.x + dist_btw_obstacles;
        ob.y = 100+Math.random()*(stage.stageHeight-200);
        addChild(ob);
        obstacles.push(ob);
        lastob = ob;
    }


}
}
Thanks in advance!
 解决方案 
Draw a Box (with colour fill but no outline). Convert to MovieClip type. Give a name eg: "Menu"
It will bea container for your menu. Add content by double-clicking it, to addgraphics & text on new layers. Or if you have already have content on some other frames, then just "cut frames" and later do a "paste frames" inside the timeline of this new movieClip.
When you converted, it was added to the Library section(ctrl + L). Find it ("Menu") in the library and right-click then choose "properties". Inlinkage section click "export for actionscript". The Class name should become "Menu" automatically. Now just click "OK".
Example usage in game code.. (ie: To add to screen or remove etc)
//# load the movieClip...
var Menu_Screen : Menu = new Menu(); //# Menu is linkage name given in Library

//# Adding to screen...
gameContainer_MC.addChild( Menu_Screen );
gameCcontainer_MC.removeChild( Menu_Screen );

//# Controlling the movieClip...
Menu_Screen.x = 50;
gameContainer_MC.Menu_Screen.x = 50;
                        
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