5151.co.vu,品牌服装厂家,58创业
一直想用html5做个小游戏，但总是没有时间，今天抽了几个小时做了个打地鼠的小游戏，体验一下html5上的游戏开发。本着osc的分享精神，特分享出来。没有花时间去找更多的素材，再加上本来就不怎么会做图，出了那个地洞的素材以外其他的全是从网上搜到的。代码也比较混乱，大家就凑合着看看吧，欢迎大家批评指正，也欢迎大家能把这个小游戏做的更完善些。
废话不说了，大家先看看效果吧：
html文件：
01 <!doctype html>
02 <html lang="en" >
03 <head>
04 <meta charset="utf-8" />
05 <title>打地鼠</title>
06 <script type="text/javascript" src="js/game.js"></script>
07 </head>
08 <body onload="init()">
09 <p class="container">
10 <canvas onmouver="hidecursor(this)" onmouseout="showcursor"
11 onmousemove="hammermove(this);"
12 onmousedown="hammerdown();" onmouseup="hammerup();"
13 id="screen" width="700" height="500" style="border:1px solid #000"></canvas>
14 </p>
15
16 <p id="info"></p>
17 </body>
18 </html>
js文件：
001 var canvas, ctx, info;
002 var bg;
003 var hammer, hamx, hamy;
004 var mousestate, mousefrmlen = 10, mousepress = false;
005 var sprites = [], holes = [];
006 var score = 0;
007 var sprite = function(w, h, x, y, state, image){
008 var self = this;
009 this.w = w;
010 this.h = h;
011 this.x = x;
012 this.y = y;
013 this.image = image;
014 this.state = state;
015
016 this.draw = function(){
017 if(this.state == 'show'){
018 ctx.drawimage(this.image, this.x, this.y, this.w, this.h);
019 settimeout(function(){
020 self.state = 'hide';
021 },3000);
022 }
023 }
024 }
025
026 var holesprite = function(w, h, x, y, state, image){
027 var self = this;
028 this.w = w;
029 this.h = h;
030 this.x = x;
031 this.y = y;
032 this.image = image;
033 this.state = state;
034
035 this.draw = function(){
036 if(this.state == 'show'){
037 ctx.drawimage(this.image, this.x, this.y, this.w, this.h);
038 }
039 }
040 }
041
042 function hammersprite(w, h, x, y, image){
043 hammersprite.prototype.w = w;
044 hammersprite.prototype.h = h;
045 hammersprite.prototype.x = x;
046 hammersprite.prototype.y = y;
047
048 hammersprite.prototype.draw = function(ispress){
049 if(ispress){
050 ctx.save();
051
052 ctx.translate(this.x-10, this.y+34);
053 ctx.rotate(math.pi/180*330);
054 ctx.drawimage(image, 0, 0, w, h);
055
056 ctx.restore();
057 }else{
058 ctx.drawimage(image, this.x, this.y, w, h);
059 }
060
061 }
062 }
063
064 function clearscreen(){
065 //ctx.clearrect(0, 0, ctx.canvas.width, ctx.canvas.height);
066 ctx.drawimage(bg, 0, 0, ctx.canvas.width, ctx.canvas.height);
067 }
068
069 function drawscreen(){
070 clearscreen();
071
072 //绘制得分
073
074 ctx.font = "40px serif"
075 ctx.strokestyle = "#ff00ff";
076 ctx.stroketext ("lion打地鼠", 50,50);
077 ctx.fillstyle = "#000000";
078 ctx.filltext("lion打地鼠",50,50);
079
080 ctx.fillstyle = "#ff0000";
081 ctx.filltext("你的得分:"+score,450,50);
082 for(i=0;i<3;i++){
083 for(j=0; j<3; j++){
084 holes[i][j].draw();
085 }
086 }
087
088
089 for(i=0;i<3;i++){
090 for(j=0; j<3; j++){
091 sprites[i][j].draw();
092 }
093 }
094
095 if(hammer){
096 hammer.draw(mousepress);
097 }
098 }
099
100 function updatelogic(){
101
102 for(i=0;i<3;i++){
103 for(j=0; j<3; j++){
104 sprites[i][j].state=='hide'
105 }
106 }
107
108 var a = math.round(math.random()*100)%3;
109 var b = math.round(math.random()*100)%3;
110 sprites[a][b].state='show';
111 }
112
113
114 function hammermove(e){
115 if(hammer){
116 hammer.x = event.x-40;
117 hammer.y = event.y-40;
118 }
119 }
120
121 function hit(x, y){
122
123 for(i=0;i<3;i++){
124 for(j=0;j<3;j++){
125 var s = sprites[i][j];
126
127 if(s.state=='show'){
128 if(x>s.x+30 && y>s.y && x<(s.x+s.w+30) && y<(s.y+s.h)){
129 score++;
130 s.state = 'hide';
131 }
132 }
133 }
134 }
135 }
136
137 function init(){
138 info = document.getelementbyid('info');
139 canvas = document.getelementbyid('screen');
140 ctx = canvas.getcontext('2d');
141
142 bg = new image();
143 bg.src = 'bg.jpg';
144 bg.onload = function(){};
145
146
147 var hamimg = new image();
148 hamimg.src = 'hammer.png';
149 hamimg.onload = function(){
150 hammer = new hammersprite(48, 48, 100, 100, hamimg);
151 }
152
153 var msimg = new image();
154 msimg.src = 'mouse.png';
155
156 msimg.onload = function(){
157 for(i=0;i<3;i++){
158 var arr = [];
159 for(j=0; j<3; j++){
160 var s = new sprite(60, 70, 50+240*i, 80+120*j, 'hide', msimg);
161 arr[j] = s;
162 }
163 sprites[i] = arr;
164 }
165 }
166
167 var holeimg = new image();
168 holeimg.src = 'hole.png';
169 holeimg.onload = function(){
170 for(i=0;i<3;i++){
171 var arr = [];
172 for(j=0; j<3; j++){
173 var s = new holesprite(80, 30, 40+240*i, 140+120*j, 'show', holeimg);
174 arr[j] = s;
175 }
176 holes[i] = arr;
177 }
178 }
179
180 setinterval(drawscreen, 30);
181 setinterval(updatelogic, 3000);
182
183 };
184
185 function hammerdown(){
186 mousepress = true;
187 }
188
189 function hammerup(){
190
191 info.innerhtml=event.x+':'+event.y;
192 mousepress = false;
193 hit(event.x, event.y);
194 }
195
196 function hidecursor(obj){
197 obj.style.cursor='none';
198 }
199
200 function showcursor(obj){
201 obj.style.cursor='';
202 }
资源图片：
作者 lion_yang
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