体验一下
项目源码：项目源码
代码结构
index.html
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<meta http-equiv="X-UA-Compatible" />
<title>塔防</title>
</head>
<body>
<img src="img/enemy.png" id="enemy_img" style="display:none;" />
<img src="img/tower.png" id="tower_img" style="display:none;" />
<img src="img/bullet.png" id="bullet_img" style="display:none;" />
<img src="img/btn.png" id="btn_img" style="display:none;" />
<div id="game" style="position:relative;float:left;width:600px;height:500px;">
<Canvas id="map" width="500" height="500" style="background:url(img/bg.png) repeat;position:absolute;left:0;top:0;z-index:99;"></canvas>
<canvas id="main" width="500" height="500" style="position:absolute;left:0;top:0;z-index:100;"></canvas>
<canvas id="tower" width="500" height="500" style="position:absolute;left:0;top:0;z-index:100;"></canvas>
<canvas id="select" width="500" height="500" style="position:absolute;left:0;top:0;z-index:101;"></canvas>
<canvas id="info" width="100" height="500" style="background-color:black;position:absolute;left:500px;top:0;z-index:102;"></canvas>
</div>
<div style="float:left;width:500px;margin-left:50px;">
<p>
说明：每种塔都可以升级到3级，升级的价格与本身建造相同，卖掉的话就是总额的一半。<br/><br/>
第一种塔：升级到3级，有小偷功能，每攻击一次会偷取1块钱。<br/>
第二种塔：减速攻击，3级时可以同时减速两个。<br/>
第三种塔：多重攻击。攻击多个目标。<br/>
第四种塔：穿刺攻击，攻击一条线上，攻击力最高。<br/>
第五种塔：秒*攻击，有一定几率把敌人秒*。<br/><br />
选择地图<select id="select_map"><option value="1">地图一</option><option value="2">地图二</option></select>,然后按<input type="button" value="开始" onclick="startGame()" />开始游戏！
</p>
</div>
<script type="text/javascript" src="js/tools.js"></script>
<script type="text/javascript" src="js/MapData.js"></script>
<script type="text/javascript" src="js/Map.js"></script>
<script type="text/javascript" src="js/Info.js"></script>
<script type="text/javascript" src="js/Enemy.js"></script>
<script type="text/javascript" src="js/Tower.js"></script>
<script type="text/javascript" src="js/Bullet.js"></script>
<script type="text/javascript" src="js/Game.js"></script>
<script type="text/javascript">
var isStart = false;
function startGame(){
if(!isStart)Game.start();
else Game.restart();
isStart = true;
}
</script>
</body>
</html>
游戏主模块
game.js
//游戏数据控制类
var Game = {
//图片列表信息
imgList : {},
//画布列表信息
canvasList : {},
//初始化
init : function(){
this.initImg();
this.initCanvas();
},
//初始化图片
initImg : function(){
this.imgList = {
enemy_img : document.getElementById("enemy_img"),
tower_img : document.getElementById("tower_img"),
bullet_img : document.getElementById("bullet_img"),
btn_img : document.getElementById("btn_img")
}
},
//初始化画布
initCanvas : function(){
this.canvasList = {
map : document.getElementById("map").getContext("2d"),
main : document.getElementById("main").getContext("2d"),
info : document.getElementById("info").getContext("2d"),
select : document.getElementById("select").getContext("2d"),
tower : document.getElementById("tower").getContext("2d")
}
},
//开始
start : function(){
switch(document.getElementById("select_map").value){
case "1":
MapData = MapOne;
break;
case "2":
MapData = MapTwo;
break;
default:
MapData = MapOne;
break;
}
Map.draw(this.canvasList.map);
this.timer = setInterval(Game.loop,20);
},
//循环体
loop : function(){
Canvas.clear(Game.canvasList.main,500,500);
}
}
Game.init();
代码不言自明。
简单说明一下：
Game.init()加载图片和Canvas对象，本游戏有5个Canvas对象，具体用途我们在后面图层章节进行说明。
点击网页上的开始按钮，调用start方法。start方法加载地图，并画到canvas上。
0是墙壁，1是可以走的路径。可以简单的改变数据，生成不同形状的地图。
MapData.js
//地图类
var MapData = [];
//地图二数据
var MapTwo = [[0,0,0,0,0,0,0,0,0,0],
[1,1,1,1,1,1,1,1,1,0],
[0,0,0,0,0,0,0,0,1,0],
[0,0,0,0,0,0,0,0,1,0],
[0,1,1,1,1,1,1,1,1,0],
[0,1,0,0,0,0,0,0,0,0],
[0,1,0,0,0,0,0,0,0,0],
[0,1,1,1,1,1,1,1,1,0],
[0,0,0,0,0,0,0,0,1,0],
[0,0,0,0,0,0,0,0,1,0]];
//地图一数据
var MapOne = [[0,0,0,0,0,0,0,0,0,0],
[1,1,1,1,1,1,1,1,1,0],
[0,0,0,0,0,0,0,0,1,0],
[0,0,0,0,0,0,0,0,1,0],
[0,0,0,0,0,0,0,0,1,0],
[0,1,1,1,1,1,1,1,1,0],
[0,1,0,0,0,0,0,0,0,0],
[0,1,0,0,0,0,0,0,0,0],
[0,1,0,0,0,0,0,0,0,0],
[0,1,0,0,0,0,0,0,0,0]];
画地图
Map.js
//地图绘制类
var Map = {
//画出地图
draw : function(map){
var i,j;
for(i = 0; i < 10;i ){
for(j = 0;j<10;j ){
//画背景地图
if(MapData[i][j] == 0)Canvas.drawRect(map,i*50,j*50,50,50,'red');
//画可以走的路
else Canvas.fillRect(map,i*50,j*50,50,50,'black');
}
}
}
}
很简单，看注释即可明白。
游戏循环 //开始
start : function(){
switch(document.getElementById("select_map").value){
case "1":
MapData = MapOne;
break;
case "2":
MapData = MapTwo;
break;
default:
MapData = MapOne;
break;
}
Map.draw(this.canvasList.map);
this.timer = setInterval(Game.loop,20);
},
//循环体
loop : function(){
Canvas.clear(Game.canvasList.main,500,500);
}
每隔20毫秒，刷新一下界面。
That's All
项目源码
