演示地址:http://demo.jb51.net/js/2011/hunt/index.htm玩法向下看 请看地址栏上的字母 O! 你使用O来向 a射击。 使用键盘上的 左箭头 和 右箭头 移动字母O. 当O移动到 a 上时，按 空格键射击! 游戏会定时30秒时间，按ESC键重新开始。 注：请使用系统自带的IE浏览器来打开本链接。 你使用O来向 a射击。 使用键盘上的 左箭头 和 右箭头 移动字母O. 当O移动到 a 上时，按 空格键射击! 核心代码:复制代码 代码如下:(function() { var Animal, Game; var __bind = function(fn, me){ return function(){ return fn.apply(me, arguments); }; }; Game = (function() { function Game() { this.eventReceived = __bind(this.eventReceived, this);; this.update = __bind(this.update, this);; this.level = 1; this.levelSize = 60; this.playerLocation = this.levelSize / 2; this.start(); } Game.prototype.start = function() { var num; this.points = 0; this.startTime = new Date; this.timeLimit = 30; this.animals = []; for (num = 4; num >= 1; num--) { this.addAnimal(); } return this.interval = setInterval(this.update, 1000 / 30); }; Game.prototype.gameOver = function() { clearInterval(this.interval); return location.hash = "在" + (this.elapsedTime()) + "秒中你共射中了" + this.points + "个a! (按ESC键重新开始)"; }; Game.prototype.elapsedTime = function() { return Math.floor(((new Date).getTime() - this.startTime.getTime()) / 1000); }; Game.prototype.addAnimal = function() { var animal; animal = new Animal(Math.floor(Math.random() * this.levelSize)); return this.animals.push(animal); }; Game.prototype.removeAnimal = function(deadAnimal) { var animal; return this.animals = (function() { var _i, _len, _ref, _results; _ref = this.animals; _results = []; for (_i = 0, _len = _ref.length; _i < _len; _i++) { animal = _ref[_i]; if (animal !== deadAnimal) { _results.push(animal); } } return _results; }).call(this); }; Game.prototype.isAnimalAt = function(position) { var animal, matches; matches = (function() { var _i, _len, _ref, _results; _ref = this.animals; _results = []; for (_i = 0, _len = _ref.length; _i < _len; _i++) { animal = _ref[_i]; if (Math.floor(animal.position) === position) { _results.push(animal); } } return _results; }).call(this); return matches[0]; }; Game.prototype.update = function() { var animal, position, timeLeft, url, _i, _len, _ref; url = []; _ref = this.animals; for (_i = 0, _len = _ref.length; _i < _len; _i++) { animal = _ref[_i]; animal.update(this.levelSize); } while (url.length < this.levelSize) { position = url.length; if (position === this.playerLocation) { if (this.isAnimalAt(this.playerLocation)) { url.push("@"); } else { url.push("O"); } } else if (this.isAnimalAt(position)) { url.push("a"); } else { url.push("-"); } } timeLeft = this.timeLimit - this.elapsedTime(); if (timeLeft <= 0) { return this.gameOver(); } else { if (timeLeft < 10) { timeLeft = "0" + timeLeft; } location.hash = (" " + timeLeft + "|") + url.join("") + ("|" + timeLeft); return document.title = "Points " + this.points; } }; Game.prototype.eventReceived = function(event) { var animal; switch (event.which) { case 37: this.playerLocation -= 1; if (this.playerLocation < 0) { return this.playerLocation = this.levelSize - 1; } break; case 39: this.playerLocation += 1; return this.playerLocation %= this.levelSize; case 38: case 32: animal = this.isAnimalAt(this.playerLocation); if (animal) { this.points += 1; this.removeAnimal(animal); console.log(this.animals.length); if (this.animals.length === 0) { return this.gameOver(); } } break; case 27: return this.start(); } }; return Game; })(); Animal = (function() { function Animal(position) { this.position = position; this.velocityChange = Math.random() * 0.5; this.velocityIndex = Math.random() * Math.PI; this.dampener = 0.4; } Animal.prototype.update = function(levelSize) { this.velocityIndex += Math.random() * this.velocityChange; this.position += Math.sin(this.velocityIndex) * this.dampener; this.position %= levelSize; if (this.position < 0) { return this.position += levelSize; } }; return Animal; })(); $(function() { var game; game = new Game(); return $(document).keydown(game.eventReceived); }); }).call(this);

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本文标题：基于jquery的地址栏射击游戏代码

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