Flash游戏编程指南·扎气球·源码

最新推荐文章于 2015-01-13 10:30:36 发布

原创最新推荐文章于 2015-01-13 10:30:36 发布 · 2.3k 阅读

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#flash #编程 #游戏 #function #import #class

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本文介绍了一个使用Flash进行游戏开发的具体案例，包括游戏状态管理、敌人生成及移动等关键功能实现方式，通过具体代码展示了如何创建游戏环境并实现玩家互动。

package { import flash.display.MovieClip; import flash.events.Event; import flash.events.MouseEvent; import flash.display.*; import flash.events.*; import flash.geom.Rectangle; import flash.media.Sound; import flash.text.*; public class Game extends MovieClip { public static const STATE_INIT:int = 10; public static const STATE_PLAY:int = 20; public static const STATE_END_GAME:int = 30; public var gameState:int = 0; public var score:int = 0; public var chances:int = 0; public var bg:MovieClip; public var enemies:Array; public var player:MovieClip; public var level:Number = 0; public var scoreLabel:TextField = new TextField(); public var levelLabel:TextField = new TextField(); public var chancesLabel:TextField = new TextField(); public var scoreText:TextField = new TextField(); public var levelText:TextField = new TextField(); public var chancesText:TextField = new TextField(); public const SCOREBOARD_Y:Number = 380; public function Game() { addEventListener(Event.ENTER_FRAME,gameLoop); bg=new BackImage(); addChild(bg); scoreLabel.text = "Score:"; levelLabel.text = "Level:"; chancesLabel.text = "Misses:"; scoreText.text = "0"; levelText.text = "1"; chancesText.text = "0"; scoreLabel.y = SCOREBOARD_Y; levelLabel.y = SCOREBOARD_Y; chancesLabel.y = SCOREBOARD_Y; scoreText.y = SCOREBOARD_Y; levelText.y = SCOREBOARD_Y; chancesText.y = SCOREBOARD_Y; scoreLabel.x = 5; scoreText.x = 50; levelLabel.x = 105; levelText.x = 155; chancesLabel.x = 205; chancesText.x = 260; addChild(scoreLabel); addChild(levelLabel); addChild(chancesLabel); addChild(scoreText); addChild(levelText); addChild(chancesText); gameState = STATE_INIT; } public function gameLoop(e:Event):void { switch (gameState) { case STATE_INIT : initGame(); break; case STATE_PLAY : playGame(); break; case STATE_END_GAME : endGame(); break; } } public function initGame():void { score = 0; chances = 0; player = new PlayerImage(); enemies = new Array(); level = 1; levelText.text = level.toString(); addChild(player); player.startDrag(true,new Rectangle(0,0,550,400)); gameState = STATE_PLAY; } public function playGame():void { player.rotation += 15; makeEnemies(); moveEnemies(); testCollisions(); testForEnd(); } public function makeEnemies():void { var chance:Number = Math.floor(Math.random() * 100); var tempEnemy:MovieClip; if (chance < 2 + level) { tempEnemy = new EnemyImage(); tempEnemy.speed = 3 + level; tempEnemy.gotoAndStop(Math.floor(Math.random()*5)+1); tempEnemy.y = 435; tempEnemy.x = Math.floor(Math.random() * 515); addChild(tempEnemy); enemies.push(tempEnemy); } } public function moveEnemies():void { var tempEnemy:MovieClip; for (var i:int = enemies.length - 1; i>=0; i--) { tempEnemy = enemies[i]; tempEnemy.y -= tempEnemy.speed; if (tempEnemy.y < -35) { chances++; chancesText.text = chances.toString(); enemies.splice(i,1); removeChild(tempEnemy); } } } public function testCollisions():void { //var sound:Sound = new Pop(); var tempEnemy:MovieClip; for (var i:int = enemies.length - 1; i>=0; i--) { tempEnemy = enemies[i]; if (tempEnemy.hitTestObject(player)) { score++; scoreText.text = score.toString(); //sound.play(); enemies.splice(i,1); removeChild(tempEnemy); } } } public function testForEnd():void { if (chances >= 5) { gameState = STATE_END_GAME; } else if (score>level*20) { level++; levelText.text = level.toString(); } } public function endGame():void { for (var i:int = 0; i < enemies.length; i++) { removeChild(enemies[i]); } enemies = []; player.stopDrag(); } } }