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纯JS实现俄罗斯方块,打造属于你的游戏帝国


俄罗斯方块可以说是风靡全世界,老少皆知的一款游戏, 那么我们作为web开发是否可以使用代码简单实现这个小游戏呢?
 
  html代码部分:
 
  
 1 <!doctype html>
 2 <html>
 3 <head>
 4 </head>
 5 <body>
 6     <h2 style="background-color:yellow;">博客园:请叫我头头哥</h2>
 7     <div id="box"></div>
 8     <div id="info">
 9         NEXT:
10         <div id="next"></div>
11         <div id="text"></div>
12     </div>
13 </body>
14 </html>

 

 
  css部分:
 
  
 
 
body {
        background: blue;
        font: 25px / 25px ËÎÌå;
    }

    #box {
        float: left;
        width: 252px;
        border: #999 20px ridge;
        color: #9f9;
        text-shadow: 2px 3px 1px #0f0;
    }

    #info {
        float: left;
        color: #cfc;
        padding: 24px;
    }

    #next {
        padding: 8px;
        width: 105px;
        color: #9f9;
        text-shadow: 2px 3px 1px #0f0;
    }

 

  js部分:
 
  
 
 
 1 var map = eval("[" + Array(23).join("0x801,") + "0xfff]");
 2     var tatris = [[0x6600], [0x2222, 0xf00], [0xc600, 0x2640], [0x6c00, 0x4620], [0x4460, 0x2e0, 0x6220, 0x740], [0x2260, 0xe20, 0x6440, 0x4700], [0x2620, 0x720, 0x2320, 0x2700]];
 3     var char = { x: "\u3000", s: "\u25a0", t: "\u25a1" };
 4     var keycom = { "38": "rotate(1)", "40": "down()", "37": "move(2,1)", "39": "move(0.5,-1)", "32": "0;pause=!pause" };
 5     var dia, pos, bak, run, next, pause = false, info = { speed: 1, lines: 0, score: 0 };
 6 
 7     // 开始时间
 8     function start() {
 9         dia = next.d;
10         bak = pos = {
11             fk: [],
12             y: 0,
13             x: 4,
14             s: next.s
15         };
16         nextdia();
17         document.getElementById("next").innerHTML = (next.d[next.s % next.d.length] | 0x10000).toString(2).slice(-16).replace(/..../g, "$&<br/>").replace(/1/g, char.t).replace(/0/g, char.x);
18         document.getElementById("text").innerHTML = "SCORE:" + info.score + "<br/><br/>LINES:" + info.lines + "<br/><br/>SPEED:" + info.speed;
19         rotate(0);
20         run = setInterval("pause||down()", ~ ~(Math.pow(1.3, 12 - info.speed) * 30 + 20));
21     }
22 
23     // 游戏结束时事件
24     function over() {
25         document.onkeydown = null;
26 
27         // confirm, 是否再来一局
28         var end = confirm("游戏结束, 是再来一局");
29         if (end) {
30             window.location.href = window.location.href;
31         } else {
32             alert("骚年,自制力不错!");
33         }
34     }
35 
36     function nextdia() {
37         next = { d: tatris[~ ~(Math.random() * 7)], s: ~ ~(Math.random() * 4) };
38     }
39 
40     function update(t) {
41         bak = { fk: pos.fk.slice(0), y: pos.y, x: pos.x, s: pos.s };
42         if (t) return;
43         for (var i = 0, a2 = ""; i < 22; i++) a2 += map[i].toString(2).slice(1, -1) + "<br/>";
44         for (var i = 0, n; i < 4; i++)
45             if (/([^0]+)/.test(bak.fk[i].toString(2).replace(/1/g, char.t)))
46                 a2 = a2.substr(0, n = (bak.y + i + 1) * 15 - RegExp.$_.length - 4) + RegExp.$1 + a2.slice(n + RegExp.$1.length);
47         document.getElementById("box").innerHTML = a2.replace(/1/g, char.s).replace(/0/g, char.x);
48     }
49 
50     function is() {
51         for (var i = 0; i < 4; i++)
52             if ((pos.fk[i] & map[pos.y + i]) != 0)
53                 return pos = bak;
54     }
55 
56     function rotate(r) {
57         var f = dia[pos.s = (pos.s + r) % dia.length];
58         for (var i = 0; i < 4; i++)
59             pos.fk[i] = (f >> (12 - i * 4) & 15) << pos.x;
60         update(is());
61     }
62 
63     function down() {
64         ++pos.y;
65         if (is()) {
66             for (var i = 0, r = 0; i < 4 && pos.y + i < 22; i++)
67                 if ((map[pos.y + i] |= pos.fk[i]) == 0xfff) {
68                     map.splice(pos.y + i, 1), map.unshift(0x801);
69                     ++info.lines % 20 == 0 && info.speed++, r++;
70                 }
71             clearInterval(run);
72             if (map[1] != 0x801)
73                 return over();
74             info.score += ~ ~(Math.pow(r, 1.5) * 10) + 2;
75             start();
76         }
77         update();
78     }
79 
80     function move(t, k) {
81         pos.x += k;
82         for (var i = 0; i < 4; i++)
83             pos.fk[i] *= t;
84         update(is());
85     }
86 
87     document.onkeydown = function (e) {
88         eval("pause||" + keycom[(e ? e : event).keyCode]);
89     };
90     nextdia();
91     start();

 


www.bkjia.comtruehttp://www.bkjia.com/Javascript/991291.htmlTechArticle纯JS实现俄罗斯方块,打造属于你的游戏帝国 俄罗斯方块可以说是风靡全世界,老少皆知的一款游戏, 那么我们作为web开发是否可以使用代...

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