js中国象棋
停止的人间花火 人气:0使用table元素作表格，div元素作象棋。
效果如下：
代码如下：
<html>
<head>
<title>中国象棋</title>
<meta charset="UTF-8">
<style>
table{
margin:10px;
border-collapse:collapse;
}
table.board{
background-color:white;
}
table,td.board{
border:1px solid black;
}
td{
height:65px;
width:65px;
}
div.pieces{
margin:5px;
height:50px;
width:50px;
border:1px solid black;
border-radius:25px;
text-align:center;
font-family:Cursive;
font-size:1.5em;
background-color:#FAF0E6;
}
div.red{
color:#F08080
}
div.green{
color:#32CD32
}
</style>
</head>
<body>
</body>
<script>
//--------------------->棋盘的样子
(function(){
table = document.createElement("table");
table.classList.add("board");
tBody = document.createElement("tBody");
for(var i=0;i<9;i++){
row = tBody.insertRow(i);
for(var j=0;j<8;j++){
cell = row.insertCell(j);
if(i!=4){cell.classList.add("board")}
}
}
table.style.position="absolute";
table.style.top="80px";
table.style.left="280px";
table.appendChild(tBody);
document.body.appendChild(table);
})();
//--------------------->生成实际在使用的表格
(function(){
table = document.createElement("table");
tBody = document.createElement("tBody");
for(var i=0;i<10;i++){
row = tBody.insertRow(i);
for(var j=0;j<9;j++){
cell = row.insertCell(j);
cell.setAttribute("data-x",j);
cell.setAttribute("data-y",i);
cell.addEventListener("click",clickBoard,false);
}
}
table.appendChild(tBody);
table.style.position="absolute";
table.style.top="50px";
table.style.left="250px";
document.body.appendChild(table);
})();
//开始游戏字样
(function(){
beginText = document.createElement("h1");
beginText.style.display="inline";
beginText.innerHTML="游戏开始";
beginText.addEventListener("click",function(event){
chessboard.init();
if(!chessboard.status){
}
},false);
beginText.style.position="absolute";
beginText.style.top="200px";
beginText.style.left="1000px";
document.body.appendChild(beginText);
})();
//走棋方展示
(function(){
turnText = document.createElement("h1");
turnText.innerHTML="红方";
turnText.style.position="absolute";
turnText.style.top="250px";
turnText.style.left="1000px";
document.body.appendChild(turnText);
})();
//-------------------->绑定三个事件
//点击棋盘
function clickBoard(event){
if(chessboard.status){
if(chessboard.curPiece){
var x = parseInt(this.getAttribute("data-x"));
var y = parseInt(this.getAttribute("data-y"));
//尝试移动棋子
chessboard.curPiece.move(x,y);
}
event.stopPropagation();
}else{
//游戏结束，什么也不做
event.stopPropagation();//阻止冒泡事件，因为冒泡也没有意义
}
}
//选中棋子
function choosePiece(event){
if(chessboard.status){
if(chessboard.turn == !!this.getAttribute("data-team") && !chessboard.curPiece){
var x = parseInt(this.parentNode.getAttribute("data-x"));
var y = parseInt(this.parentNode.getAttribute("data-y"));
//选中棋子
chessboard.curPiece = chessboard.pieces[x][y];
chessboard.curPiece.piece.style.backgroundColor="#B0E0E6";
//阻止冒泡事件
//因为点击键盘事件是移动棋子位置事件，当前没有选中棋子，自然就不需要冒泡了
event.stopPropagation();
}
}else{
//游戏结束，什么也不做
event.stopPropagation();//阻止冒泡事件，因为冒泡也没有意义
}
}
//取消选中棋子
window.addEventListener("click",function(event){
if(chessboard.status){
if(chessboard.curPiece){
chessboard.curPiece.piece.style.backgroundColor="#FAF0E6";
chessboard.curPiece=null;
}
}else{
//游戏结束，什么也不做
}
},false);
//棋盘
chessboard = {
init:function(){
for(i=0;i<9;i++){this.pieces[i]=[]; }
if(this.copyPieces){
//直接拷贝this.copyPieces即可
for(var i=0;i<9;i++){
if(this.copyPieces[i]){
for(var j=0;j<10;j++){
this.pieces[i][j]=this.copyPieces[i][j];
this.pieces1[i][j]=this.copyPieces[i][j];//用于保存一步以后的棋子布局
if(table.rows[j].cells[i].childNodes.length){
for(var l=0;l<table.rows[j].cells[i].childNodes.length;l++){
table.rows[j].cells[i].removeChild(table.rows[j].cells[i].childNodes[l]);
}
}
if(this.pieces[i][j]){
table.rows[j].cells[i].appendChild(this.pieces[i][j].piece);//棋盘放上棋子
this.pieces[i][j].positionX=i;//设置x轴
this.pieces[i][j].positionY=j;//设置y轴
}
}
}
}
}else{
//第一次运行，自己创建所有棋子
{
//红棋
this.pieces[0][9] = new Car("CarR1",0,9,true);
this.pieces[1][9] = new Horse("HorseR1",1,9,true);
this.pieces[1][7] = new Cannon("CannonR1",1,7,true);
this.pieces[2][9] = new Elephant("ElephantR1",2,9,true,"相");
this.pieces[3][9] = new Bodyguards("BodyguardsR1",3,9,true);
this.pieces[4][9] = new Boss("bossR",4,9,true,"帅");
this.redBoss=this.pieces[4][9];
this.pieces[5][9] = new Bodyguards("BodyguardsR2",5,9,true);
this.pieces[6][9] = new Elephant("ElephantR2",6,9,true,"相");
this.pieces[7][7] = new Cannon("CannonR2",7,7,true);
this.pieces[7][9] = new Horse("HorseR2",7,9,true);
this.pieces[8][9] = new Car("CarR2",8,9,true);
this.pieces[0][6] = new Soldier("SoldierR1",0,6,true,"兵");
this.pieces[2][6] = new Soldier("SoldierR2",2,6,true,"兵");
this.pieces[4][6] = new Soldier("SoldierR3",4,6,true,"兵");
this.pieces[6][6] = new Soldier("SoldierR4",6,6,true,"兵");
this.pieces[8][6] = new Soldier("SoldierR5",8,6,true,"兵");
//黑棋
this.pieces[0][0] = new Car("CarG1",0,0,false);
this.pieces[1][0] = new Horse("HorseG1",1,0,false);
this.pieces[1][2] = new Cannon("CannonG1",1,2,false);
this.pieces[2][0] = new Elephant("ElephantG1",2,0,false,"象");
this.pieces[3][0] = new Bodyguards("BodyguardsG1",3,0,false);
this.pieces[4][0] = new Boss("bossG",4,0,false,"将");
this.greenBoss=this.pieces[4][0];
this.pieces[5][0] = new Bodyguards("BodyguardsG2",5,0,false);
this.pieces[6][0] = new Elephant("ElephantG2",6,0,false,"象");
this.pieces[7][2] = new Cannon("CannonG2",7,2,false);
this.pieces[7][0] = new Horse("HorseG2",7,0,false);
this.pieces[8][0] = new Car("CarG2",8,0,false);
this.pieces[0][3] = new Soldier("SoldierR1",0,3,false,"卒");
this.pieces[2][3] = new Soldier("SoldierR2",2,3,false,"卒");
this.pieces[4][3] = new Soldier("SoldierR3",4,3,false,"卒");
this.pieces[6][3] = new Soldier("SoldierR4",6,3,false,"卒");
this.pieces[8][3] = new Soldier("SoldierR5",8,3,false,"卒");
}
this.copyPieces=[];
for(var i=0;i<9;i++){
if(this.pieces[i]){
this.copyPieces[i]=[];
for(var j=0;j<10;j++){
this.copyPieces[i][j]=this.pieces[i][j];
this.pieces1[i][j]=this.pieces[i][j];
}
}
}
//绑定事件单击
var divs = document.getElementsByClassName("pieces");
for(var i=0;i<divs.length;i++){divs[i].addEventListener("click",choosePiece,false);}
}
this.status = true;
this.turn = true;
turnText.innerHTML="红方";
},
gameOver:function (winner){
if(winner){alert("红方胜利")}else{alert("黑方胜利")}
this.status=false;
},
changeTurn:function(){
this.turn = !this.turn;
chessboard.curPiece.piece.style.backgroundColor="#FAF0E6";
//当前选中棋子置换为null
chessboard.curPiece=null;
if(this.turn){turnText.innerHTML="红方"}else{turnText.innerHTML="黑方"}
if(beKillAnyWay(this.turn)){
alert("绝杀！");
chessboard.gameOver(!this.turn);
}
},
status:true,//游戏的状态,true:正在玩，false:结束了
redBoss:null,
greenBoss:null,
curPiece:null,
pieces:[],//存放棋子当前布局状态
pieces1:[[],[],[],[],[],[],[],[],[]],//存放棋子走过一步后的布局状态
copyPieces:null,//存放棋子布局的初始状态
turn:true,//红先黑后,true:红
};
//检查跳的位置上是否有对手棋子
//有：返回true
//没有：返回false
function checkEnemy(x,y){
if(chessboard.pieces[x][y] && chessboard.pieces[x][y].team != this.team){
return true;
}
return false;
}
//击杀对手棋子
function killEnemy(x,y){
chessboard.pieces[x][y].beKill();
}
//是否将军
function canKilBoss(x,y){
if(this.team){
for(var i=0;i<chessboard.pieces.length;i++){
for(var j=0;j<chessboard.pieces[i].length;j++){
if(chessboard.pieces[i][j] && chessboard.pieces[i][j].team == this.team){
if(chessboard.pieces[i][j].checkPath(chessboard.greenBoss.positionX,chessboard.greenBoss.positionY)){return true;}
}
}
}
return false;
}else{
for(var i=0;i<chessboard.pieces.length;i++){
for(var j=0;j<chessboard.pieces[i].length;j++){
if(chessboard.pieces[i][j] && chessboard.pieces[i][j].team == this.team){
if(chessboard.pieces[i][j].checkPath(chessboard.redBoss.positionX,chessboard.redBoss.positionY)){return true};
}
}
}
return false;
}
}
//被击杀
function beKill(){
chessboard.pieces[this.positionX][this.positionY]=null;
chessboard.pieces1[this.positionX][this.positionY]=null;
this.piece.parentNode.removeChild(this.piece);
if(this.name=="将" || this.name=="帅"){
chessboard.gameOver(!this.team);
}
}
function check(x,y){
if(this.checkPath(x,y) && this.checkBoss(x,y)){
return true;
}
return false;
}
//检查是否被绝杀
//会：返回true，不会：返回false
function beKillAnyWay(turn){
for(var i=0;i<9;i++){
for(var j=0;j<10;j++){
if(chessboard.pieces[i][j] && chessboard.pieces[i][j].team == turn){
var paths = chessboard.pieces[i][j].pathCanGo();
for(var l=0;l<paths.length;l++){
if(!chessboard.pieces[i][j].canBeKilBoss(paths[l]["x"],paths[l]["y"])){return false;}
}
}
}
}
return true;
}
//走出这步后会不会送将
//会：返回true，不会：返回false
function canBeKilBoss(x,y){
//pieces1置换为1步以后的状态
var tempPiece = chessboard.pieces1[x][y];
chessboard.pieces1[this.positionX][this.positionY]=null;
chessboard.pieces1[x][y]=this;
//this也置换为一步以后的状态
var tempX = this.positionX;
var tempY = this.positionY;
this.positionX=x;
this.positionY=y;
if(this.team){
for(var i=0;i<9;i++){
for(var j=0;j<10;j++){
if(chessboard.pieces1[i][j] && !chessboard.pieces1[i][j].team){
if(chessboard.pieces1[i][j].checkPath(chessboard.redBoss.positionX,chessboard.redBoss.positionY,chessboard.pieces1)){
//恢复之前的状态
this.positionX=tempX;
this.positionY=tempY;
chessboard.pieces1[this.positionX][this.positionY]=this;
chessboard.pieces1[x][y]=tempPiece;
return true;
}
}
}
}
}else{
for(var i=0;i<9;i++){
for(var j=0;j<10;j++){
if(chessboard.pieces1[i][j] && chessboard.pieces1[i][j].team){
if(chessboard.pieces1[i][j].checkPath(chessboard.greenBoss.positionX,chessboard.greenBoss.positionY,chessboard.pieces1)){
//恢复之前的状态
this.positionX=tempX;
this.positionY=tempY;
chessboard.pieces1[this.positionX][this.positionY]=this;
chessboard.pieces1[x][y]=tempPiece;
return true;
}
}
}
}
}
//恢复之前的状态
this.positionX=tempX;
this.positionY=tempY;
chessboard.pieces1[this.positionX][this.positionY]=this;
chessboard.pieces1[x][y]=null;
return false;
}
//移动棋子
function move(x,y){
if(this.check(x,y)){
//有对手的棋子，则吃掉对手棋子
if(this.checkEnemy(x,y)){killEnemy(x,y);}
this.doMove(x,y);
//换手
chessboard.changeTurn();
if(chessboard.status && this.canKilBoss(x,y)){alert("将军！")}
}
}
//实际调整棋子的位置
function doMove(x,y){
//棋子移动至这个位置
this.piece.parentNode.removeChild(this.piece);
table.rows[y].cells[x].appendChild(this.piece);
//二维数组处放置当前棋子
chessboard.pieces[x][y]=this;
chessboard.pieces[this.positionX][this.positionY]=null;
//一步后的二维数组同步更新
chessboard.pieces1[x][y]=this;
chessboard.pieces1[this.positionX][this.positionY]=null;
this.positionX=x;
this.positionY=y;
}
//棋子的父类，定义了一些方法，供继承使用（但是发现这个继承用处不大，甚至有些负作用）
function Pieces(){
this.checkEnemy=checkEnemy;
this.killEnemy=killEnemy;
this.beKill=beKill;
this.canKilBoss=canKilBoss;
this.canBeKilBoss=canBeKilBoss;
this.move=move;
this.doMove=doMove;
this.checkBoss=checkBoss;
this.check=check;
}
//判断车的位置是否合法
function checkCarPath(x,y,chessArr){
if(x<0 || x>8 || y<0 || y>9){return false;}
if(chessArr){
if(chessArr[x][y] && chessArr[x][y].team == this.team){return false;}
}else{
if(chessboard.pieces[x][y] && chessboard.pieces[x][y].team == this.team){return false;}
}
if((this.positionX==x && this.positionY!=y) || (this.positionX!=x && this.positionY==y)){
//前进路线中不能有任何障碍
if(this.positionX==x){
for(var i= Math.min(this.positionY,y) + 1; i< Math.max(this.positionY,y);i++){
if(chessArr){
if(chessArr[x][i]){return false;}
}else{
if(chessboard.pieces[x][i]){return false;}
}
}
}else{
for(var i= Math.min(this.positionX,x) + 1; i< Math.max(this.positionX,x);i++){
if(chessArr){
if(chessArr[i][y]){return false;}
}else{
if(chessboard.pieces[i][y]){return false;}
}
}
}
return true;
}
return false;
}
//车可以移动的位置
function pathCanGo_car(chessArr){
var paths = [];
//x不变，y轴上可以移动的位置
for(var i=0;i<9;i++){
if(i != this.positionY && this.check(this.positionX,i)){paths.push({"x":this.positionX,"y":i});}
}
//y不变，x轴上可以移动的位置
for(var i=0;i<10;i++){
if(i != this.positionX && this.check(i,this.positionY)){paths.push({"x":i,"y":this.positionY});}
}
return paths;
}
//车
function Car(nID,nX,nY,nTeam){
this.name="车";
this.ID=nID;
this.positionX=nX;
this.positionY=nY;
this.team=!!nTeam;
this.checkPath=checkCarPath;
this.pathCanGo=pathCanGo_car;
this.piece = createPieces(this.name,this.positionX,this.positionY,this.name,this.team);
}
//判断马的位置是否合法
function checkHorsePath(x,y,chessArr){
if(x<0 || x>8 || y<0 || y>9){return false;}
if(chessArr){
if(chessArr[x][y] && chessArr[x][y].team == this.team){return false;}
}else{
if(chessboard.pieces[x][y] && chessboard.pieces[x][y].team == this.team){return false;}
}
//马走日字
if(Math.abs(x-this.positionX)==2 && Math.abs(y-this.positionY)==1){
//蹩马腿
if(chessboard.pieces[(x+this.positionX)/2][this.positionY]){return false;}
return true;
}
if(Math.abs(x-this.positionX)==1 && Math.abs(y-this.positionY)==2){
//蹩马腿
if(chessboard.pieces[this.positionX][(y+this.positionY)/2]){return false;}
return true;
}
return false;
}
//马可以移动的位置
function pathCanGo_Horse(){
var paths = [];
//右二下一
if(this.check(this.positionX+2,this.positionY+1)){paths.push({"x":this.positionX+2,"y":this.positionY+1});}
//右二上一
if(this.check(this.positionX+2,this.positionY-1)){paths.push({"x":this.positionX+2,"y":this.positionY-1});}
//左二下一
if(this.check(this.positionX-2,this.positionY+1)){paths.push({"x":this.positionX-2,"y":this.positionY+1});}
//左二上一
if(this.check(this.positionX-2,this.positionY-1)){paths.push({"x":this.positionX-2,"y":this.positionY-1});}
//右一下二
if(this.check(this.positionX+1,this.positionY+2)){paths.push({"x":this.positionX+1,"y":this.positionY+2});}
//右一上二
if(this.check(this.positionX+1,this.positionY-2)){paths.push({"x":this.positionX+1,"y":this.positionY-2});}
//左一下二
if(this.check(this.positionX-1,this.positionY+2)){paths.push({"x":this.positionX-1,"y":this.positionY+2});}
//左一上二
if(this.check(this.positionX-1,this.positionY-2)){paths.push({"x":this.positionX-1,"y":this.positionY-2});}
return paths;
}
//马
function Horse(nID,nX,nY,nTeam){
this.name="马";
this.ID=nID;
this.positionX=nX;
this.positionY=nY;
this.team=!!nTeam;
this.checkPath=checkHorsePath;
this.pathCanGo=pathCanGo_Horse;
this.piece = createPieces(this.name,this.positionX,this.positionY,this.name,this.team);
}
//判断象的位置是否合法
function checkElephantPath(x,y,chessArr){
if(x<0 || x>8 || y<0 || y>9){return false;}
if(chessArr){
if(chessArr[x][y] && chessArr[x][y].team == this.team){return false;}
}else{
if(chessboard.pieces[x][y] && chessboard.pieces[x][y].team == this.team){return false;}
}
//不能过河
if(this.team){if(y<5){return false;}}
else{if(y>4){return false;}}
//象走田字
if(Math.abs(x-this.positionX)==2 && Math.abs(y-this.positionY)==2){
//蹩象腿
if(!chessboard.pieces[(x+this.positionX)/2][(y+this.positionY)/2]){
return true;
}
}
return false;
}
//象可以移动的位置
function pathCanGo_Elephant(){
var paths = [];
//右二下二
if(this.check(this.positionX+2,this.positionY+2)){paths.push({"x":this.positionX+2,"y":this.positionY+2});}
//右二上二
if(this.check(this.positionX+2,this.positionY-2)){paths.push({"x":this.positionX+2,"y":this.positionY-2});}
//左二下二
if(this.check(this.positionX-2,this.positionY+2)){paths.push({"x":this.positionX-2,"y":this.positionY+2});}
//左二上二
if(this.check(this.positionX-2,this.positionY-2)){paths.push({"x":this.positionX-2,"y":this.positionY-2});}
return paths;
}
//象
function Elephant(nID,nX,nY,nTeam,name){
this.name=name;
this.ID=nID;
this.positionX=nX;
this.positionY=nY;
this.team=!!nTeam;
this.checkPath=checkElephantPath;
this.pathCanGo=pathCanGo_Elephant;
this.piece = createPieces(this.name,this.positionX,this.positionY,this.name,this.team);
}
//判断士的位置是否合法
function checkBodyguardsPath(x,y,chessArr){
if(x<0 || x>8 || y<0 || y>9){return false;}
if(chessArr){
if(chessArr[x][y] && chessArr[x][y].team == this.team){return false;}
}else{
if(chessboard.pieces[x][y] && chessboard.pieces[x][y].team == this.team){return false;}
}
//x轴不能出九宫格
if(x!=3 && x!=4 && x!=5){return false;}
//y轴不能出九宫格
if(this.team){if(y<7){return false;}}
else{if(y>2){return false;}}
//士斜着走一步
if(Math.abs(x-this.positionX)==1 && Math.abs(y-this.positionY)==1){
return true;
}
return false;
}
//士可以移动的位置
function pathCanGo_Bodyguards(){
var paths = [];
if(this.check(this.positionX+1,this.positionY+1)){
paths.push({"x":this.positionX+1,"y":this.positionY+1});
}
if(this.check(this.positionX+1,this.positionY-1)){
paths.push({"x":this.positionX+1,"y":this.positionY-1});
}
if(this.check(this.positionX-1,this.positionY+1)){
paths.push({"x":this.positionX-1,"y":this.positionY+1});
}
if(this.check(this.positionX-1,this.positionY-1)){
paths.push({"x":this.positionX-1,"y":this.positionY-1});
}
return paths;
}
//士，找不到合适的单词，构造器意为保镖
function Bodyguards(nID,nX,nY,nTeam){
this.name="士";
this.ID=nID;
this.positionX=nX;
this.positionY=nY;
this.team=!!nTeam;
this.checkPath=checkBodyguardsPath;
this.pathCanGo=pathCanGo_Bodyguards;
this.piece = createPieces(this.name,this.positionX,this.positionY,this.name,this.team);
}
//将/帅的位置是否合法
function checkBossPath(x,y,chessArr){
if(x<0 || x>8 || y<0 || y>9){return false;}
if(chessArr){
if(chessArr[x][y] && chessArr[x][y].team == this.team){return false;}
}else{
if(chessboard.pieces[x][y] && chessboard.pieces[x][y].team == this.team){return false;}
}
if(x!=3 && x!=4 && x!=5){return false;}
if(this.team){if(y<7){return false;}}
else{if(y > 2){return false;}}
if(Math.abs(x-this.positionX)==1 && Math.abs(y-this.positionY)==0){
return true;
}
if(Math.abs(x-this.positionX)==0 && Math.abs(y-this.positionY)==1){
return true;
}
return false;
}
//将可以移动的位置
function pathCanGo_Boss(){
var paths=[];
if(this.check(this.positionX+1,this.positionY)){paths.push({"x":this.positionX+1,"y":this.positionY})}
if(this.check(this.positionX-1,this.positionY)){paths.push({"x":this.positionX-1,"y":this.positionY})}
if(this.check(this.positionX,this.positionY+1)){paths.push({"x":this.positionX,"y":this.positionY+1})}
if(this.check(this.positionX,this.positionY-1)){paths.push({"x":this.positionX,"y":this.positionY-1})}
return paths;
}
//将，帅
function Boss(nID,nX,nY,nTeam,name){
this.name=name;
this.ID=nID;
this.positionX=nX;
this.positionY=nY;
this.team=!!nTeam;
this.checkPath=checkBossPath;
this.pathCanGo=pathCanGo_Boss;
this.piece = createPieces(this.name,this.positionX,this.positionY,this.name,this.team);
}
//兵/卒的位置是否合法
function checkSoldierPath(x,y,chessArr){
if(x<0 || x>8 || y<0 || y>9){return false;}
if(chessArr){
if(chessArr[x][y] && chessArr[x][y].team == this.team){return false;}
}else{
if(chessboard.pieces[x][y] && chessboard.pieces[x][y].team == this.team){return false;}
}
if(this.team){
//不能后退
if(y>this.positionY){return false;}
//前进，合法
if(Math.abs(x-this.positionX)==0 && Math.abs(y-this.positionY)==1){
return true;
}
//过河后可以横向移动，然而也只能走一步
if(this.positionY<5){
if(Math.abs(x-this.positionX)==1 && Math.abs(y-this.positionY)==0){
return true;
}
}
}else{
//不能后退
if(y<this.positionY){return false;}
//前进，合法
if(Math.abs(x-this.positionX)==0 && Math.abs(y-this.positionY)==1){
return true;
}
//过河后可以横向移动，然而也只能走一步
if(this.positionY>4){
if(Math.abs(x-this.positionX)==1 && Math.abs(y-this.positionY)==0){
return true;
}
}
}
return false;
}
//兵/卒可以移动的位置
function pathCanGo_Soldier(){
var paths = [];
if(this.team){
if(this.check(this.positionX,this.positionY-1)){paths.push({"x":this.positionX,"y":this.positionY-1});}
if(this.positionY<5){
if(this.check(this.positionX+1,this.positionY)){paths.push({"x":this.positionX+1,"y":this.positionY});}
if(this.check(this.positionX-1,this.positionY)){paths.push({"x":this.positionX-1,"y":this.positionY});}
}
}else{
if(this.check(this.positionX,this.positionY+1)){paths.push({"x":this.positionX,"y":this.positionY+1});}
if(this.positionY>4){
if(this.check(this.positionX+1,this.positionY)){paths.push({"x":this.positionX+1,"y":this.positionY});}
if(this.check(this.positionX-1,this.positionY)){paths.push({"x":this.positionX-1,"y":this.positionY});}
}
}
return paths;
}
//兵
function Soldier(nID,nX,nY,nTeam,name){
this.name=name;
this.ID=nID;
this.positionX=nX;
this.positionY=nY;
this.team=!!nTeam;
this.checkPath=checkSoldierPath;
this.pathCanGo=pathCanGo_Soldier;
this.piece = createPieces(this.name,this.positionX,this.positionY,this.name,this.team);
}
//炮的位置是否合法
function checkCannonPath(x,y,chessArr){
if(x<0 || x>8 || y<0 || y>9){return false;}
if(chessArr){
if(chessArr[x][y] && chessArr[x][y].team == this.team){return false;}
}else{
if(chessboard.pieces[x][y] && chessboard.pieces[x][y].team == this.team){return false;}
}
//炮走直线
if(this.positionX==x || this.positionY==y){
var count = 0;//计数路线上的障碍
if(this.positionX==x){count = count2Piece("y",this.positionY,y,x,chessArr);}
else{count = count2Piece("x",this.positionX,x,y,chessArr);}
//没有障碍，切目标位置没有棋子，合法
if(chessArr){
if(count==0 && !chessArr[x][y]){
return true;
}
//有一个障碍
if(count==1){
//且目标位置上有对手棋子，合法
if(chessArr[x][y] && chessArr[x][y].team != this.team){
return true;
}
}
}else{
if(count==0 && !chessboard.pieces[x][y]){
return true;
}
//有一个障碍
if(count==1){
//且目标位置上有对手棋子，合法
if(chessboard.pieces[x][y] && chessboard.pieces[x][y].team != this.team){
return true;
}
}
}
}
//其余情况均不合法
return false;
}
//泡可以移动的位置
function pathCanGo_Cannon(){
var paths = [];
for(var i=0;i<10;i++){
if(i!=this.positionY && this.check(this.positionX,i)){paths.push({"x":this.positionX,"y":i})}
}
for(var i=0;i<9;i++){
if(i!=this.positionX && this.check(i,this.positionY)){paths.push({"x":i,"y":this.positionY})}
}
return paths;
}
//炮
function Cannon(nID,nX,nY,nTeam){
this.name="炮";
this.ID=nID;
this.positionX=nX;
this.positionY=nY;
this.team=!!nTeam;
this.checkPath=checkCannonPath;
this.pathCanGo=pathCanGo_Cannon;
this.piece = createPieces(this.name,this.positionX,this.positionY,this.name,this.team);
}
//检查老将问题
function checkBoss(x,y,chessArr){
if(this.canBeKilBoss(x,y,chessArr)){
return false;
}
if(this.name == "将" || this.name == "帅"){//将要移动的是将
if(this.team){//帅
if(x!=chessboard.greenBoss.positionX){return true;}
var count = count2Piece("y",y,chessboard.greenBoss.positionY,x,chessArr);
return count > 0;
}else{//将
if(x!=chessboard.redBoss.positionX){return true;}
var count = count2Piece("y",y,chessboard.redBoss.positionY,x,chessArr);
return count>0;
}
}else{//将要移动的不是将
//两方的将不在同一条线，通过
if(chessboard.redBoss.positionX != chessboard.greenBoss.positionX){
return true;
}
var count=count2Piece("y",chessboard.redBoss.positionY,chessboard.greenBoss.positionY,chessboard.redBoss.positionX,chessArr);
//新的位置在两个老将的x轴上，且y轴在两个老将之间
if(x == chessboard.redBoss.positionX && y < chessboard.redBoss.positionY && y > chessboard.greenBoss.positionY){count++;}
//旧的位置在两个老将的x轴上，且y轴在两个老将之间
if(this.positionX == chessboard.redBoss.positionX && y < chessboard.redBoss.positionY && y > chessboard.greenBoss.positionY){count--;}
return count>0;
}
}
/**
计算在一条线上的两个棋子“之间”的棋子数量
@param XOrY 计算x轴还是y轴上的棋子数量
@param a1 要计算的轴上的两点中的一点
@param a2 要计算的轴上的两点中的一点
@param a3 不需要计算的轴上的值
@param chessArr 要在哪个棋子布局上计算
*/
function count2Piece(XOrY,a1,a2,a3,chessArr){
var count=0;
if(XOrY=='x' || XOrY=='X'){
for(var i= Math.min(a1,a2) + 1;i< Math.max(a1,a2);i++){
if(chessArr){
if(chessArr[i][a3]){++count;}
}else{
if(chessboard.pieces[i][a3]){++count;}
}
}
}else{
for(var i= Math.min(a1,a2) + 1;i< Math.max(a1,a2);i++){
if(chessArr){
if(chessArr[a3][i]){++count;}
}else{
if(chessboard.pieces[a3][i]){++count;}
}
}
}
return count;
}
//在dom中创建棋子
function createPieces(ID,x,y,name,team){
var div = document.createElement("div");
div.setAttribute("data-team",team?"red":"");
div.classList.add("pieces");
div.classList.add(team?"red":"green");
div.appendChild(document.createTextNode(name));
tBody.rows[y].cells[x].appendChild(div);
return div;
}
var p = new Pieces();
Car.prototype=p;
Horse.prototype=p;
Elephant.prototype=p;
Bodyguards.prototype=p;
Boss.prototype=p;
Soldier.prototype=p;
Cannon.prototype=p;
chessboard.init();
</script>
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