-
chessboard.js:
All the action related to chessboard, such as draw the chessboard, use two-dimensional array to save the status of chesses, etc.
负责绘制棋盘，存储棋盘等一切和棋盘相关的操作。 -
const.js
Definition of all the const, such as the chess margin, edge number, etc.
定义了所有要用的常量，比如棋盘距离，大小，各类棋形的评分 -
evaluate.js
Use min-max search with alpha-beta pruning to find the best position. To increase the depth of search, I only search the vacancies within two children with the exist chesses.
负责计算最佳落棋地点。主要实现了统计棋形，计算得分，alphabeta搜索的功能。当搜索层数加深之后，搜索棋盘数量呈指数增加，搜索当前棋盘三子的空位消耗的时间过多，为了减小在单个棋盘上的搜索增加搜索层数，采用搜索已有棋子两子以内的空位 -
interact.js
Take charge of interaction from player to Ai. All the events are controlled by this file. Use Web worker to solve the unresponsive page when the AI script running.
描述整个下棋的交互过程，相当于c++中的main函数。为了解决在启发式搜索时出现的页面卡顿，引入了htm5的特性web worker。在运行时要注意使用支持该特性的浏览器。而该项目的使用方式调用了本地的文件，由于安全原因在chrome上会出现cannot be accessed from origin ‘null’的问题，可以搭建本地服务器，然后通过本地服务器访问