JS实现——俄罗斯方块

把以下代码保存成Tetris.html文件，使用Google或360浏览器打开

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 4.0 Transitional//EN">

<html xmlns="http://www.w3.org/1999/xhtml">

<head>

  <meta name="charset-8"/>

  <title> new document </title>

</head>

<body>

  <div id="space"></div>

  <div id="debug" style="position:relative;top:-600px;left:330px"></div>

</body>

<script>

//定义按键

var KEY_LEFT = 37;

var KEY_RIGHT = 39;

var KEY_ROTATE = 38;

var KEY_ACCELERATE = 40;

var KEY_PAUSE = 13;

var KEY_ONE_STOP = 32;

//定义地图大小

var MAP_R = 18;

var MAP_C = 10;

//定义方块大小

var BLOCK_R = 4;

var BLOCK_C = 4;

//定义各种方块

var BLOCKS = [

//I

[

 [[1,1,1,1],

  [0,0,0,0],

  [0,0,0,0],

  [0,0,0,0]],

 [[0,1,0,0],

  [0,1,0,0],

  [0,1,0,0],

  [0,1,0,0]],

 [[1,1,1,1],

  [0,0,0,0],

  [0,0,0,0],

  [0,0,0,0]],

 [[0,1,0,0],

  [0,1,0,0],

  [0,1,0,0],

  [0,1,0,0]]

],

//L

[

 [[1,0,0,0],

  [1,1,1,0],

  [0,0,0,0],

  [0,0,0,0]],

 [[1,1,0,0],

  [1,0,0,0],

  [1,0,0,0],

  [0,0,0,0]],

 [[1,1,1,0],

  [0,0,1,0],

  [0,0,0,0],

  [0,0,0,0]],

 [[1,0,0,0],

  [1,0,0,0],

  [1,1,0,0],

  [0,0,0,0]]

],

//J

[

 [[1,1,1,0],

  [1,0,0,0],

  [0,0,0,0],

  [0,0,0,0]],

 [[1,1,0,0],

  [0,1,0,0],

  [0,1,0,0],

  [0,0,0,0]],

 [[0,0,1,0],

  [1,1,1,0],

  [0,0,0,0],

  [0,0,0,0]],

 [[1,0,0,0],

  [1,0,0,0],

  [1,1,0,0],

  [0,0,0,0]]

],

//O

[

 [[0,1,1,0],

  [0,1,1,0],

  [0,0,0,0],

  [0,0,0,0]],

 [[0,1,1,0],

  [0,1,1,0],

  [0,0,0,0],

  [0,0,0,0]],

 [[0,1,1,0],

  [0,1,1,0],

  [0,0,0,0],

  [0,0,0,0]],

 [[0,1,1,0],

  [0,1,1,0],

  [0,0,0,0],

  [0,0,0,0]]

],

//S

[

 [[0,1,1,0],

  [1,1,0,0],

  [0,0,0,0],

  [0,0,0,0]],

 [[0,1,0,0],

  [0,1,1,0],

  [0,0,1,0],

  [0,0,0,0]],

 [[0,1,1,0],

  [1,1,0,0],

  [0,0,0,0],

  [0,0,0,0]],

 [[0,1,0,0],

  [0,1,1,0],

  [0,0,1,0],

  [0,0,0,0]]

],

//T

[

 [[0,1,0,0],

  [1,1,1,0],

  [0,0,0,0],

  [0,0,0,0]],

 [[0,1,0,0],

  [0,1,1,0],

  [0,1,0,0],

  [0,0,0,0]],

 [[0,0,0,0],

  [1,1,1,0],

  [0,1,0,0],

  [0,0,0,0]],

 [[0,1,0,0],

  [1,1,0,0],

  [0,1,0,0],

  [0,0,0,0]]

],

//Z

[

 [[1,1,0,0],

  [0,1,1,0],

  [0,0,0,0],

  [0,0,0,0]],

 [[0,1,0,0],

  [1,1,0,0],

  [1,0,0,0],

  [0,0,0,0]],

 [[1,1,0,0],

  [0,1,1,0],

  [0,0,0,0],

  [0,0,0,0]],

 [[0,1,0,0],

  [1,1,0,0],

  [1,0,0,0],

  [0,0,0,0]]

]

];

var map = [];

for(var r = 0; r < MAP_R; r++) {

  map.push([]);

  for(var c = 0; c < MAP_C; c++) {

    map[r][c] = {};

    map[r][c].b = 0;

  }

}

var colors = ['darkorange','darkviolet','mediumblue','red','lightseagreen','yellow','lime'];

var enableShadow = true;

var shadow = {};

var currR, currC; //方格当前在Space的左顶点位置

var currType; //当前正在落下方块的种类

var currDir = 0; //当前正在落下方块的方向

var pause = false;

//可以落下

function canFall(currR, currC) {

  for(var c = 0; c < BLOCK_C; c++)

    for(var r = BLOCK_R - 1; r >= 0; r--) {

      if(!BLOCKS[currType][currDir][r][c])

        continue;

      if(currR + r + 1 > MAP_R - 1)

        return false;

      if(map[currR + r + 1][currC + c].b)

        return false;

   }

  return true;

}

//找方块的投影坐标

function makeShadow() {

  shadow.r = currR;

  shadow.c = currC;

  while(canFall(shadow.r, shadow.c)) {

    shadow.r++;

  }

}

//落下状态设置到map

function fall(block) {

  for(var r = 0; r < BLOCK_R; r++)

    for(var c = 0; c < BLOCK_C; c++)

      if(BLOCKS[currType][currDir][r][c]) {

        map[currR + r][currC + c].b = BLOCKS[currType][currDir][r][c];

        map[currR + r][currC + c].c = currType;

      }

}

//可以左移

function canLeft() {

  for(var r = 0; r < BLOCK_R; r++)

    for(var c = 0; c < BLOCK_C; c++) {

      if(!BLOCKS[currType][currDir][r][c])

        continue;

      if(currC + c - 1 < 0)

        return false;

      if(map[currR + r][currC + c - 1].b)

        return false;

   }

  return true;

}

//可以右移

function canRight() {

  for(var r = 0; r < BLOCK_R; r++)

    for(var c = BLOCK_C - 1; c >= 0; c--) {

      if(!BLOCKS[currType][currDir][r][c])

        continue;

      if(currC + c + 1 > MAP_C - 1)

        return false;

      if(map[currR + r][currC + c + 1].b)

        return false;

   }

  return true;

}

//可以旋转

function canRotate() {

  return true;

}

//获得满行的行位置

function checkFullRows() {

  var rows = [];

  var full;

  for(var r = currR; r < MAP_R; r++) {

    full = true;

    for(var c = 0; full && c < MAP_C; c++)

      full = map[r][c].b;

    if(full)

      rows.push(r);

  }

  return rows;

}

function showPop(rows) {

  for(var i = 0; i < rows.length; i++)

    for(var c = 0; c < MAP_C; c++)

      $(rows[i] + '-' + c).style.backgroundColor = 'transparent';

}

//在map消除指定行位置的行

function popRows(rows) {

  for(var i = 0; i < rows.length; i++)

    for(var r = rows[i] - 1; r >= 0; r--)

      for(var c = 0; c < MAP_C; c++) {

        map[r + 1][c].b = map[r][c].b;

        map[r + 1][c].c = map[r][c].c;

      }

}

document.onkeydown = function(event) {

  var keyCode = window .event?event.keyCode:event.which;

  if(keyCode == KEY_LEFT ||  keyCode == KEY_RIGHT) {

    easeBlock();

    if(enableShadow)

      easeShadow();

    if(keyCode == KEY_LEFT) {

      if(canLeft())

        --currC;

    } else if(keyCode == KEY_RIGHT) {

      if(canRight())

        ++currC;

    }

    drawBlock();

    if(enableShadow) {

      makeShadow();

      drawShadow();

    }

  } else if(keyCode == KEY_ROTATE) {

    if(canRotate()) {

      easeBlock();

      if(enableShadow)

        easeShadow();

      currDir = [1,2,3,0][currDir];

      drawBlock();

      if(enableShadow) {

        makeShadow();

        drawShadow();

      }

    }

  } else if(keyCode == KEY_ACCELERATE) {

    loop();

  } else if(keyCode == KEY_PAUSE) {

    pause = !pause;

    if(pause)

      clearInterval(timer);

    else

      timer = setInterval(loop, 300);

  } else if(keyCode == KEY_ONE_STOP) {

    easeBlock();

    makeShadow();

    currR = shadow.r;

    currC = shadow.c;

    drawBlock();

  }

  //printMapState();

}

function nextBlock() {

  function randInt(n, m) {

    return Math.floor(Math.random() * (m - n)) + n;

  }

  currR = 0;

  currC = MAP_C / 2 - BLOCK_C / 2;

  currType = randInt(0, BLOCKS.length);

  currDir = randInt(0, 4);

}

function printMapState() {

  var debug = $('debug');

  var html = '';

  for(var r = 0; r < MAP_R; r++) {

    for(var c = 0; c < MAP_C; c++)

      html += map[r][c].b;

    html += '</br>';

  }

  debug.innerHTML = html;

}

onload = function() {

init();

nextBlock();

drawBlock();

makeShadow();

drawShadow();

timer = setInterval(loop, 300);

};

function loop() {

  if(canFall(currR, currC)) {

    easeBlock();

    ++currR;

    drawBlock();

  } else {

    fall();

    if(currR == 0) {

      drawBlock();

      clearInterval(timer);

      alert('Game Over');

      return;

    }

    var rows = checkFullRows();

    if(rows.length > 0) {

      showPop(rows);

      popRows(rows);

      setTimeout(function(){

        drawMap();

      }, 100);

    }

    if(enableShadow)

      easeShadow();

    nextBlock();

    drawBlock();

    if(enableShadow) {

      makeShadow();

      drawShadow();

    }

  }

}

function drawMap() {

  for(var r = 0; r < MAP_R; r++)

    for(var c = 0; c < MAP_C; c++) {

      var div = $(r + '-' + c);

      if(map[r][c].b) {

        div.style.backgroundColor = colors[map[r][c].c];

      } else {

        div.style.backgroundColor = 'transparent';

      }

    }

}

function drawBlock() {

  for(var r = 0; r < BLOCK_R; r++)

    for(var c = 0; c < BLOCK_C; c++) {

      if(BLOCKS[currType][currDir][r][c]) {

        var div = $((currR + r) + '-' + (currC + c));

        div.style.backgroundColor = colors[currType];

        div.style.border = '1px solid ' + colors[currType];

      }

    }

}

function easeBlock() {

  for(var r = 0; r < BLOCK_R; r++)

    for(var c = 0; c < BLOCK_C; c++) {

      if(BLOCKS[currType][currDir][r][c]) {

        var div = $((currR + r) + '-' + (currC + c));

        div.style.backgroundColor = 'transparent';

        div.style.border = '1px solid ' + 'transparent';

      }

    }

}

function drawShadow() {

  for(var r = 0; r < BLOCK_R; r++)

    for(var c = 0; c < BLOCK_C; c++) {

      if(BLOCKS[currType][currDir][r][c]) {

        var div = $((shadow.r + r) + '-' + (shadow.c + c));

        div.style.border = '1px solid blue';

      }

    }

}

function easeShadow() {

  for(var r = 0; r < BLOCK_R; r++)

    for(var c = 0; c < BLOCK_C; c++) {

      if(BLOCKS[currType][currDir][r][c]) {

        var div = $((shadow.r + r) + '-' + (shadow.c + c));

        div.style.border = '1px solid ' + 'transparent';

      }

    }

}

function init() {

  var size = 28;

  var space = $('space');

  space.style.position = 'relative';

  space.style.width = size * MAP_C + (MAP_C + 1) * 3 + 1 + 'px';

  space.style.height = size * MAP_R + (MAP_R + 1) * 3 + 1 + 'px';

  //space.style.backgroundColor = 'lavender';

  space.style.border = '2px solid black';

  for(var r = 0; r < MAP_R; r++) {

    for(var c = 0; c < MAP_C; c++) {

      var div = document.createElement('div');

      div.id = r + '-' + c;

      div.style.position = 'absolute';

      div.style.top = size * r + (r + 1) * 3 + 'px';

      div.style.left = size * c + (c + 1) * 3 + 'px';

      div.style.width = size + 'px';

      div.style.height = size + 'px';

      space.appendChild(div);

    }

  }

}

function $(id) {

  return document.getElementById(id);

}

</script>

</html>

出处：qq群--编程算法&思想 459909287

JS实现——俄罗斯方块的更多相关文章

使用JS实现俄罗斯方块游戏
简单的JS俄罗斯方块游戏源码效果图: 代码如下,复制即可使用: <!DOCTYPE html> <html> <head> <meta charset=&q ...
纯JS实现俄罗斯方块，打造属于你的游戏帝国
纯JS俄罗斯方块,打造属于你的游戏帝国. 本文原始作者博客 http://www.cnblogs.com/toutou 俄罗斯方块(Tetris, 俄文:Тетрис)是一款电视游戏机和掌上游戏机游戏 ...
用纯JS做俄罗斯方块 - 简要思路介绍（1）
大家都知道俄罗斯方块是一款大众化的游戏了,我很小的时候就玩过,今年已经25岁了,可以说俄罗斯方块确实是历史悠久,做俄罗斯方块是我上个星期开始的想法.也许是由于自己从来没有写过这种东西吧,所以有生疏.代 ...
60行JS实现俄罗斯方块
参考文献:http://www.cnblogs.com/jimaojin/p/5413857.html 原版: <!doctype html><html><head> ...
[前端 3]纯Js制作俄罗斯方块游戏
导读:在别人文章里看到了,然后写了一遍.结果出错了,然后调出来了,然后理解了一下,加了点注释,有一些想法.忘了在哪一篇上面看的了,就贴不出来链接地址.原谅.呃,真没自己的东西,权当练打字了吧.其实, ...
JS实现俄罗斯方块
在80后.90后的儿时记忆里,俄罗斯方块是必备的消遣小游戏,它的玩法非常简单基本大家都懂,但如何用编程语言开发一款儿时同款「俄罗斯方块」,恐怕知道的同学就很少啦. 位置掩码和旋转掩码俄罗斯方块游戏中 ...
JAVASCRIPT实现网页版：俄罗斯方块
HTML+CSS+JS实现俄罗斯方块完整版,素材只有图片,想要的下载图片按提示名字保存,css中用的时候注意路径!!主要在JS中!JS附有详细注释效果: 按键提示:[键盘按键] 素材:图片名字与代码 ...
使用C#重写网上的60行 Javascript 俄罗斯方块源码 (带注释)
在很久很久以前,就已经看过 60行Js的俄罗斯方块源码.无奈当时能力不够看明白,当时觉得就是个神作. 现在总算有空再看了,顺便用c#实现一遍(超过60行),顺道熟悉下Js API. 网上其他博客也有分 ...
jQuery原型属性和方法总结
从大四下学期开始了解jquery源码相关的东西,在回校参加毕业典礼(准确的说是参加补考挂科太多)期间便开始借着<jQuery>内幕学习jquery源码,然后在博客园写笔记也已经两个月了,也 ...

随机推荐

最全的Spring注解详解
@Configuration : 配置类 == 配置文件,告诉Spring这是一个配置类@ComponentScan(value="com.atguigu",excludeFilt ...
SpringBoot 数据库操作增删改查
1.pom添加依赖  <dependency> <groupId>org.springframework.boot</groupI ...
uvm_reg_map——寄存器模型（八）
所有的寄存器都需要地址,都需要加入到地址列表中 //-------------------------------------------------------------------------- ...
SharePoint Online和SharePoint 2016 导出到Excel 表错误
导出到Excel是一个有用的SharePoint功能.偶尔您可能会遇到该功能无法正常工作的情况.有几个原因可能导致此功能无法正常工作. Problem #1 使用非32位Internet Explor ...
javaSe-线程2
package com.java.chap09.sec02; public class Thread3 implements Runnable{ private int baoZi=1; privat ...
POJ 1185 炮兵阵地（状压DP，轮廓线DP）
题意: 给一个n*m的矩阵,每个格子中有'P'或者'H',分别表示平地和高原,平地可以摆放大炮,而大炮的攻击范围在4个方向都是2格(除了自身位置),攻击范围内不能有其他炮,问最多能放多少个炮?(n&l ...
LeetCode Remove Linked List Elements 删除链表元素
题意:移除链表中元素值为val的全部元素. 思路:算法复杂度肯定是O(n),那么就在追求更少代码和更少额外操作.我做不出来. /** * Definition for singly-linked li ...
【Python图像特征的音乐序列生成】关于mingus一个bug的修复，兼改进情感模型
mingus在输出midi文件的时候,使用这样的函数: from mingus.containers import NoteContainer from mingus.midi import midi ...
BZOJ 3232: 圈地游戏分数规划+判负环
3232: 圈地游戏 Time Limit: 20 Sec Memory Limit: 128 MBSubmit: 966 Solved: 466[Submit][Status][Discuss] ...
BZOJ 2119: 股市的预测 SA
2119: 股市的预测 Time Limit: 10 Sec Memory Limit: 259 MBSubmit: 434 Solved: 200[Submit][Status][Discuss ...

JS实现——俄罗斯方块

JS实现——俄罗斯方块的更多相关文章

随机推荐

热门专题