This article shares the specific code of JS Canvas to implement Gozi Chess game for your reference. The specific content is as follows
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>Gozi Chess</title>
<style type='text/css'>
canvas {
display: block;
margin: 50px auto;
box-shadow: -2px -2px 2px #efefef, 5px 5px 5px #b9b9b9;
cursor: pointer;
}
.btn-wrap {
display: flex;
flex-direction: row;
justify-content:center;
}
.btn-wrap div {
margin: 0 10px;
}
div>span {
display: inline-block;
padding: 10px 20px;
color: #fff;
background-color: #EE82EE;
border-radius: 5px;
cursor: pointer;
}
span {
background: #D6D6D4;
color: #adacaa;
}
#result-wrap {text-align: center;}
</style>
</head>
<body>
<h3 >--益智Gozi Chess--</h3>
<canvas width="450px" height="450px"></canvas>
<div class="btn-wrap">
<div id='restart' class="restart">
<span>restart</span>
</div>
<div id='goback' class="goback unable">
<span>Regret chess</span>
</div>
<div id='return' class="return unable">
<span>撤销Regret chess</span>
</div>
</div>
<script type="text/javascript" charset="utf-8">
var over = false;
var me = true; //I var _nowi = 0, _nowj = 0; //Record the coordinates of your own chess var _compi = 0, _compj = 0; //Record the current coordinates of the computer chess var _myWin = [], _compWin = []; //Record me, the computer wins var backAble = false, returnAble = false;
var resultTxt = ('result-wrap');
var chressBord = [];//checkerboard for(var i = 0; i < 15; i++){
chressBord[i] = [];
for(var j = 0; j < 15; j++){
chressBord[i][j] = 0;
}
}
//The winning method statistics array var myWin = [];
var computerWin = [];
//Winning method array var wins = [];
for(var i = 0; i < 15; i++){
wins[i] = [];
for(var j = 0; j < 15; j++){
wins[i][j] = [];
}
}
var count = 0; //Total number of winning methods //Horizontal line win method for(var i = 0; i < 15; i++){
for(var j = 0; j < 11; j++){
for(var k = 0; k < 5; k++){
wins[i][j+k][count] = true;
}
count++;
}
}
//Permanent line win method for(var i = 0; i < 15; i++){
for(var j = 0; j < 11; j++){
for(var k = 0; k < 5; k++){
wins[j+k][i][count] = true;
}
count++;
}
}
//Forward slash win method for(var i = 0; i < 11; i++){
for(var j = 0; j < 11; j++){
for(var k = 0; k < 5; k++){
wins[i+k][j+k][count] = true;
}
count++;
}
}
//Backslash win method for(var i = 0; i < 11; i++){
for(var j = 14; j > 3; j--){
for(var k = 0; k < 5; k++){
wins[i+k][j-k][count] = true;
}
count++;
}
}
// debugger;
for(var i = 0; i < count; i++){
myWin[i] = 0;
_myWin[i] = 0;
computerWin[i] = 0;
_compWin[i] = 0;
}
var chess = ("chess");
var context = ('2d');
= '#bfbfbf'; //Border color var backbtn = ("goback");
var returnbtn = ("return");
= function(){
drawChessBoard(); // Draw the chessboard }
("restart").onclick = function(){
();
}
// I, play chess = function(e){
if(over){
return;
}
if(!me){
return;
}
// The chess function is available = ( new RegExp( "(\\s|^)unable(\\s|$)" )," " );
var x = ;
var y = ;
var i = (x / 30);
var j = (y / 30);
_nowi = i;
_nowj = j;
if(chressBord[i][j] == 0){
oneStep(i,j,me);
chressBord[i][j] = 1; //I have taken the position
for(var k = 0; k < count; k++){ // Add 1 to any possible winning situations if(wins[i][j][k]){
// debugger;
myWin[k]++;
_compWin[k] = computerWin[k];
computerWin[k] = 6;//The opponent cannot win at this position if(myWin[k] == 5){
// ('You win'); = 'Congratulations, you won! ';
over = true;
}
}
}
if(!over){
me = !me;
computerAI();
}
}
}
// Regret chess = function(e){
if(!backAble) { return;}
over = false;
me = true;
// = 'o(╯□╰)o, regret it in chess'; // Undo the regret chess function is available = ( new RegExp( "(\\s|^)unable(\\s|$)" )," " );
// I regret chess chressBord[_nowi][_nowj] = 0; //I, it has taken up a place to restore minusStep(_nowi, _nowj); //Destroy the chess pieces for(var k = 0; k < count; k++){ // Reduce all possible wins by 1 if(wins[_nowi][_nowj][k]){
myWin[k]--;
computerWin[k] = _compWin[k];//The opponent may win in this position }
}
// Computer corresponding regret chess chressBord[_compi][_compj] = 0; //Computer, already occupied a location Restore minusStep(_compi, _compj); //Destroy the chess pieces for(var k = 0; k < count; k++){ // Reduce all possible wins by 1 if(wins[_compi][_compj][k]){
computerWin[k]--;
myWin[k] = _myWin[i];//The opponent may win in this position }
}
= '--Puzhi Goji--';
returnAble = true;
backAble = false;
}
// Undo the regret chess = function(e){
if(!returnAble) { return; }
// I, cancel the regret chess chressBord[_nowi][_nowj] = 1; //I have taken the position oneStep(_nowi,_nowj,me);
for(var k = 0; k < count; k++){
if(wins[_nowi][_nowj][k]){
myWin[k]++;
_compWin[k] = computerWin[k];
computerWin[k] = 6;//The opponent cannot win at this position }
if(myWin[k] == 5){
= 'Congratulations, you won! ';
over = true;
}
}
// The computer cancels the corresponding regret chess chressBord[_compi][_compj] = 2; //The computer has occupied a location oneStep(_compi,_compj,false);
for(var k = 0; k < count; k++){ // Reduce all possible wins by 1 if(wins[_compi][_compj][k]){
computerWin[k]++;
_myWin[k] = myWin[k];
myWin[k] = 6;//The opponent cannot win at this position }
if(computerWin[k] == 5){
= 'o(╯□╰)o，The computer won，Keep working hard！';
over = true;
}
}
+= ' '+ 'unable';
returnAble = false;
backAble = true;
}
// Computer chess var computerAI = function (){
var myScore = [];
var computerScore = [];
var max = 0;
var u = 0, v = 0;
for(var i = 0; i < 15; i++){
myScore[i] = [];
computerScore[i] = [];
for(var j = 0; j < 15; j++){
myScore[i][j] = 0;
computerScore[i][j] = 0;
}
}
for(var i = 0; i < 15; i++){
for(var j = 0; j < 15; j++){
if(chressBord[i][j] == 0){
for(var k = 0; k < count; k++){
if(wins[i][j][k]){
if(myWin[k] == 1){
myScore[i][j] += 200;
}else if(myWin[k] == 2){
myScore[i][j] += 400;
}else if(myWin[k] == 3){
myScore[i][j] += 2000;
}else if(myWin[k] == 4){
myScore[i][j] += 10000;
}
if(computerWin[k] == 1){
computerScore[i][j] += 220;
}else if(computerWin[k] == 2){
computerScore[i][j] += 420;
}else if(computerWin[k] == 3){
computerScore[i][j] += 2100;
}else if(computerWin[k] == 4){
computerScore[i][j] += 20000;
}
}
}
if(myScore[i][j] > max){
max = myScore[i][j];
u = i;
v = j;
}else if(myScore[i][j] == max){
if(computerScore[i][j] > computerScore[u][v]){
u = i;
v = j;
}
}
if(computerScore[i][j] > max){
max = computerScore[i][j];
u = i;
v = j;
}else if(computerScore[i][j] == max){
if(myScore[i][j] > myScore[u][v]){
u = i;
v = j;
}
}
}
}
}
_compi = u;
_compj = v;
oneStep(u,v,false);
chressBord[u][v] = 2; //The computer occupies the position for(var k = 0; k < count; k++){
if(wins[u][v][k]){
computerWin[k]++;
_myWin[k] = myWin[k];
myWin[k] = 6;//The opponent cannot win at this position if(computerWin[k] == 5){
= 'o(╯□╰)o，The computer won，Keep working hard！';
over = true;
}
}
}
if(!over){
me = !me;
}
backAble = true;
returnAble = false;
var hasClass = new RegExp('unable').test(' ' + + ' ');
if(!hasClass) {
+= ' ' + 'unable';
}
}
//Drawing chessboard var drawChessBoard = function() {
for(var i = 0; i < 15; i++){
(15 + i * 30 , 15);
(15 + i * 30 , 435);
();
(15 , 15 + i * 30);
(435 , 15 + i * 30);
();
}
}
//Draw chess pieces var oneStep = function(i,j,me) {
();
(15 + i * 30, 15 + j * 30, 13, 0, 2 * );// Draw a circle ();
//Gradial var gradient = (15 + i * 30 + 2, 15 + j * 30 - 2, 13, 15 + i * 30 + 2, 15 + j * 30 - 2, 0);
if(me){
(0,'#0a0a0a');
(1,'#636766');
}else{
(0,'#d1d1d1');
(1,'#f9f9f9');
}
= gradient;
();
}
//Destroy the chess pieces var minusStep = function(i,j) {
//Erase the circle ((i) * 30, (j) * 30, 30, 30);
// Repaint the grid around the circle ();
(15+i*30 , j*30);
(15+i*30 , j*30 + 30);
(i*30, j*30+15);
((i+1)*30 , j*30+15);
();
}
</script>
</body>
</html>
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