Created
April 20, 2012 13:16
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Tetris #devoxxfr
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| <!doctype html><html> | |
| <head><meta charset="UTF-8"><title>Tetris</title></head> | |
| <body> | |
| <pre id='game'></pre> | |
| <script> | |
| var tetris = { | |
| empty:0,board:0,block:0,position:0,offset:0, | |
| init: function(){ | |
| this.empty = 1<<30; | |
| this.board = this.empty; | |
| this.block = 3; | |
| this.position = 32; | |
| this.offset = -5; | |
| return this; | |
| }, | |
| binary: function(i){ | |
| return i.toString(2); | |
| }, | |
| render: function(board){ | |
| var result = ''; | |
| var binary = this.binary(board); | |
| for (var i = 1; i < binary.length; i++) { | |
| if (binary[i] === '0'){ | |
| result += '.'; | |
| } else { | |
| result += '#'; | |
| } | |
| if (i%5==0){ | |
| result +='\n'; | |
| } | |
| }; | |
| return result; | |
| }, | |
| merge: function(){ | |
| return this.board | this.block << this.position; | |
| }, | |
| play: function(){ | |
| var out = ''; | |
| if (this.position + this.offset < 0){ | |
| this.board = this.merge(); | |
| out = this.render(this.board); | |
| this.block = new Date%2?1:3; | |
| this.position = 32; | |
| if (this.board.toString(32).indexOf('v')>0){ | |
| out = 'WIN'; | |
| } | |
| } else { | |
| this.position += this.offset; | |
| out = this.render(this.merge()); | |
| } | |
| return out; | |
| }, | |
| key: function(e){ | |
| switch (e.keyCode){ | |
| case 37: tetris.offset = 1; break; //left | |
| case 39: tetris.offset = -1; break; //right | |
| case 40: tetris.offset = -5; break; //down | |
| } | |
| document.getElementById('game').innerHTML = tetris.play(); | |
| } | |
| } | |
| onkeydown = tetris.key; | |
| </script> | |
| <ol id="qunit-tests"></ol> | |
| <pre class='test'>..... | |
| ..... | |
| ..... | |
| ..... | |
| ..... | |
| ..... | |
| </pre><pre class='test'>..... | |
| ..... | |
| ..... | |
| ..... | |
| ..... | |
| ...## | |
| </pre><pre class='test'>.##.. | |
| ..... | |
| ..... | |
| ..... | |
| ..... | |
| ..... | |
| </pre><pre class='test'>..... | |
| ..... | |
| ..... | |
| ..... | |
| ..... | |
| ##### | |
| </pre> | |
| <script src="qunit.js"></script> | |
| <script> | |
| function grid(i){return document.querySelectorAll('.test')[i].innerHTML;} | |
| test('init', function(){ | |
| var t = tetris.init(); | |
| equal(t.empty,1<<30); | |
| equal(t.binary(t.empty),"1000000000000000000000000000000"); | |
| }); | |
| test('render', function(){ | |
| var t = tetris.init(); | |
| equal(t.render(t.empty),grid(0)); | |
| }); | |
| test('merge', function(){ | |
| var t = tetris.init(); | |
| equal(t.render(t.merge()),grid(1)); | |
| }); | |
| test('play', function(){ | |
| var t = tetris.init(); | |
| equal(t.play(),grid(2)); | |
| }); | |
| test('bottom', function(){ | |
| var t = tetris.init(); | |
| t.position =0; | |
| equal(t.play(),grid(1)); | |
| }); | |
| test('win', function(){ | |
| var t = tetris.init(); | |
| t.board=1073741855; | |
| t.position=0; | |
| equal(t.play(),'WIN'); | |
| }); | |
| </script> | |
| <style>pre{border:1px solid;display:inline-block;padding:10px;} | |
| .passed{color:green;font-weight:bold;}th{text-align:left;} | |
| .failed{color:red;font-weight:bold;}a{display:none} | |
| *{font:18px monospace;}body{padding-left:300px;} | |
| #game{margin-left:-200px;float:left;}</style></body></html> |
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