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Create your game empire with pure JS Tetris.

Source: Internet
Author: User
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Create your game empire with pure JS Tetris.

Tetris, Russian: Т р и с) is a television and handheld game machine. It was invented by Russian Alexei pakitov.

The basic rule of the Russian square is to move, rotate, and place various blocks automatically output by the game, so that they are arranged into one or more complete rows and the score is eliminated. It is easy to use and suitable for all ages, so it is widely used in the world.

So our question is, which of the following is the best excavator technology?

Tetris can be said to be a game that is popular all over the world and is well known to the world. Can we use code to simply implement this game as a web developer?

Html code:

1 <! Doctype html> 2

3 4 5 <body>
6

Css section:　

 
 
    
  
  
  1. body { 
    2. 
  
  
  2.         background: blue; 
    3. 
  
  
  3.         font: 25px / 25px ËÎÌå; 
    4. 
  
  
  4.     } 
    5. 
  
  
  5.  
    6. 
  
  
  6.     #box { 
    7. 
  
  
  7.         float: left; 
    8. 
  
  
  8.         width: 252px; 
    9. 
  
  
  9.         border: #999 20px ridge; 
    10. 
  
  
  10.         color: #9f9; 
    11. 
  
  
  11.         text-shadow: 2px 3px 1px #0f0; 
    12. 
  
  
  12.     } 
    13. 
  
  
  13.  
    14. 
  
  
  14.     #info { 
    15. 
  
  
  15.         float: left; 
    16. 
  
  
  16.         color: #cfc; 
    17. 
  
  
  17.         padding: 24px; 
    18. 
  
  
  18.     } 
    19. 
  
  
  19.  
    20. 
  
  
  20.     #next { 
    21. 
  
  
  21.         padding: 8px; 
    22. 
  
  
  22.         width: 105px; 
    23. 
  
  
  23.         color: #9f9; 
    24. 
  
  
  24.         text-shadow: 2px 3px 1px #0f0; 
    25. 
  
  
  25.     } 
    26.

Js section:

1 var map = eval ("[" + Array (23). join ("0x801,") + "0 xfff]");
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 // start time
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/> LINES:" + info. lines + "<br/> SPEED:" + info. speed;
19 rotate (0 );
20 run = setInterval ("pause | down ()",~ ~ (Math. pow (1.3, 12-info. speed) * 30 + 20 ));
21}
22
23 // game end event
24 function over (){
25 document. onkeydown = null;
26
27 // confirm, whether to enable another round
28 var end = confirm ("the game is over, next game ");
29 if (end ){
30 window. location. href = window. location. href;
31} else {
32 alert ("Cool, good self-control! ");
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]) = 0 xfff ){
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 ();

Implementation:

Download the source code.

We hereby declare that all comments and private messages will be replied immediately. You are also welcome to correct the mistakes and make progress together.

Author's blog http://www.cnblogs.com/toutou

This article is an English version of an article which is originally in the Chinese language on aliyun.com and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to info-contact@alibabacloud.com. A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

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