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var Stone = require('Stone');
var judger = require('FiveStoneJudger');
/**
* 五子棋的主控制类
*/
export default class FiveStone {
/**
* 初始化棋盘
* @param page 当前页面页面
* @param chessBoardSize 当前棋盘每行和列最多能下多少个子子
* @param chessboardSizePercent 棋盘的宽度相当于屏幕宽度的百分比(0<x<1)
*/
constructor(chessBoardSize, chessboardSizePercent) {
var self = this;
var chessBoard = [];
//占位
var chessBoardCell = [];
this.chessBoardSize = chessBoardSize;
for (var r = 0; r < chessBoardSize; r++) {
var row = [];
var cellRow = [];
for (var c = 0; c < chessBoardSize; c++) {
row.push({
stoneType:Stone.none,
//位置使用到的时候才计算
pos:null
});
if (c < chessBoardSize - 1) {
cellRow.push(0);
}
}
chessBoard.push(row);
if (r < chessBoardSize - 1) {
chessBoardCell.push(cellRow);
}
}
this.chessBoard = chessBoard;
this.chessBoardCell = chessBoardCell;
//获取系统信息
wx.getSystemInfo({
success: function(res) {
self.chessboardSizePX = res.windowWidth * chessboardSizePercent;
console.log('%c棋盘大小:%c' +
self.chessboardSizePX +
'%cpx',
'color:red;',
'color:blue;',
'color:black;'
);
self.cellSizePX = self.chessboardSizePX / (chessBoardSize - 1);
console.log('%c单元格大小:%c' +
self.cellSizePX +
'%cpx',
'color:red;',
'color:blue;',
'color:black;'
);
self.halfCellSizePX = self.cellSizePX * 0.5;
}
});
//当前下子的类型
this.stone = Stone.black;
//下子监听的回调集合
this.onStepStoneCallbacks = [];
//是否能够下子的开关
this._canStep = true;
//历史
this.history = [];
//设置裁判
this.setJudger(judger);
}
/**
* 通过事件获取下子在棋盘的位置
*/
getStepLocation(e) {
var curTarget = e.currentTarget;
var offset = {
x: curTarget.offsetLeft,
y: curTarget.offsetTop
};
var touch = e.touches[0];
//相对棋盘的位置
var clientPos = {
x:touch.pageX - offset.x,
y:touch.pageY - offset.y
};
var stepPos = {
x: Math.ceil((clientPos.x - this.halfCellSizePX) / this.cellSizePX),
y: Math.ceil((clientPos.y - this.halfCellSizePX) / this.cellSizePX)
};
if (stepPos.x < 0 || stepPos.x >= this.chessBoardSize ||
stepPos.y < 0 || stepPos.y >= this.chessBoardSize) {
return null;
}
return stepPos;
}
/**
* 通过事件获取下子在棋盘的绝对位置
*/
getStepPosition(e) {
var curTarget = e.currentTarget;
var stepPos = this.getStepLocation(e);
if (stepPos == null) {
return null;
}
var absPos = stepPos.clone();
//后面的那个1像素怎么出来的我也不知道，反正减了之后位置看起来正很多
absPos.x = absPos.x * this.cellSizePX + curTarget.offsetLeft - this.halfCellSizePX - 1;
absPos.y = absPos.y * this.cellSizePX + curTarget.offsetTop - this.halfCellSizePX - 1;
this.chessBoard[stepPos.x][stepPos.y].pos = absPos.clone();
return absPos;
}
/**
* 下棋，设置的是基于棋盘的坐标
* @return 返回true就是下子成功，否则为失败
*/
step(x, y) {
if (this.canStepAt(x, y)) {
this.chessBoard[x][y].stoneType = this.nowStone();
const nowStone = this.nowStone();
this.stone = nowStone == Stone.black ? Stone.white:Stone.black;
this.onStepStone(nowStone, x, y);
if (!(this.history instanceof Array)) {
this.history = [];
}
//插入到历史
this.history.push({
'x':x,
'y':y,
'stoneType':nowStone
});
this.judge(nowStone, x, y);
return true;
}
return false;
}
/**
* 悔棋
*/
undo() {
if (!(this.history instanceof Array) || this.history.length <= 0) {
return;
}
const lastStoneIndex = this.history.length - 1;
const lastStone = this.history[lastStoneIndex];
this.stone = lastStone.stoneType;
this.history.splice(lastStoneIndex, 1);
this.chessBoard[lastStone.x][lastStone.y].stoneType = Stone.none;
this.allowStep();
}
/**
* 判断该棋子是否能够下
*/
canStepAt(x, y) {
if (x < 0 || x >= this.chessBoardSize ||
y < 0 || y >= this.chessBoardSize ||
this.chessBoard[x][y].stoneType != Stone.none) {
return false;
}
return this._canStep;
}
/**
* 当触发了下子的事件的时候
*/
onStepStone(nowStone, x, y) {
if (this.onStepStoneCallbacks instanceof Array) {
for (var i in this.onStepStoneCallbacks) {
const cb = this.onStepStoneCallbacks[i];
if (typeof(cb) === 'function') {
cb.call(this, nowStone, x, y);
}
}
}
}
/**
* 添加下子的监听器
* @return 如果返回0则代表插入失败，成功返回索引
*/
addOnStepStoneCallback(func) {
if (!(this.onStepStoneCallbacks instanceof Array)) {
this.onStepStoneCallbacks = [];
}
if (typeof(func) == 'function') {
//push以后会返回数组的长度，所以减一之后就会是对应的索引
return this.onStepStoneCallbacks.push(func) - 1;
}
return 0;
}
/**
* 通过索引删除下子的监听器
*/
removeOnStepStoneCallback(index) {
if (this.onStepStoneCallbacks instanceof Array) {
if (this.onStepStoneCallbacks.length > index) {
this.onStepStoneCallbacks.splice(index, 1);
}
}
}
/**
* 重新开局
*/
restart() {
this.stone = Stone.black;
for (var r in this.chessBoard) {
for (var c in this.chessBoard[r]) {
this.chessBoard[r][c].stoneType = Stone.none;
}
}
//清空历史
this.history = [];
this.allowStep();
}
/**
* 阻止下子
*/
preventStep() {
this._canStep = false;
}
/**
* 允许下子
*/
allowStep() {
this._canStep = true;
}
/**
* 获取当前是下的黑子还是白子
*/
nowStone() {
return this.stone;
}
/**
* 返回当前是否允许下子
*/
canStep() {
return this._canStep;
}
/**
* 进行裁判(下子成功之后触发)
* @param stepStone 当前下子的类型
* @param x 下子基于棋盘的x坐标
* @param y 下子基于棋盘的y坐标
*/
judge(stepStone, x, y) {
if (typeof(this._judger) == 'function') {
this._judger.call(this, stepStone, x, y, this._winCallback);
}
}
/**
* 设置裁判回调
*/
setJudger(func) {
if (typeof(func) == 'function') {
this._judger = func;
}
}
/**
* 设置胜利之后的回调
*/
setWinCallback(func) {
if (typeof(func) == 'function') {
this._winCallback = func;
}
}
}
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