js實現(xiàn)五子棋代碼分享

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js實現(xiàn)五子棋代碼分享

js實現(xiàn)五子棋代碼分享:本文主要和大家分享js實現(xiàn)五子棋代碼，通過canvas繪制棋盤與棋子，通過js代碼實現(xiàn)邏輯。index.html代碼：<!DOCTYPE html><html><head> <meta charset="utf-8"> <title>五子棋

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導(dǎo)讀js實現(xiàn)五子棋代碼分享:本文主要和大家分享js實現(xiàn)五子棋代碼，通過canvas繪制棋盤與棋子，通過js代碼實現(xiàn)邏輯。index.html代碼：<!DOCTYPE html><html><head> <meta charset="utf-8"> <title>五子棋

本文主要和大家分享js實現(xiàn)五子棋代碼，通過canvas繪制棋盤與棋子，通過js代碼實現(xiàn)邏輯。

index.html代碼：

<!DOCTYPE html><html><head>
 <meta charset="utf-8">
 <title>五子棋</title>
 <link rel="stylesheet" type="text/css" href="css/style.css"></head><body>
 <canvas id="chess" width="450px" height="450px"></canvas>
 <p id='restart' class="restart">
 <span>重新開始</span>
 </p>
 <script type="text/javascript" src="js/script.js"></script></body></html>

style.css代碼：

canvas{ display: block; margin: 50px auto; box-shadow: -2px -2px 2px #EFEFEF, 5px 5px 5px #B9B9B9;}.restart{ text-align: center;}.restart>span{ display: inline-block; padding: 10px 20px; color: #fff; background-color: #C92027; border-radius: 5px;}

script.js代碼：

//判斷是否結(jié)束var over = false;//判斷落子方var me = true; //我var chressBord = [];//棋盤for(var i = 0; i < 15; i++){
 chressBord[i] = []; for(var j = 0; j < 15; j++){
 chressBord[i][j] = 0;
 }
}//贏法的統(tǒng)計數(shù)組var myWin = [];var computerWin = [];//贏法數(shù)組var wins = [];for(var i = 0; i < 15; i++){
 wins[i] = []; for(var j = 0; j < 15; j++){
 wins[i][j] = [];
 }
}var count = 0; //贏法總數(shù)//橫線贏法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++;
 }
}//豎線贏法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++;
 }
}//正斜線贏法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++;
 }
}//反斜線贏法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++;
 }
}for(var i = 0; i < count; i++){
 myWin[i] = 0;
 computerWin[i] = 0;
}//獲得canvas對象var chess = document.getElementById("chess");var context = chess.getContext('2d');

context.strokeStyle = '#bfbfbf'; //邊框顏色var logo = new Image();
logo.src = 'images/logo.jpg';
logo.onload = function(){
 context.drawImage(logo,0,0,450,450);
 drawChessBoard();
}

document.getElementById("restart").onclick = function(){
 window.location.reload();
}
chess.onclick = function(e){
 if(over){ return;
 } if(!me){ return;
 } var x = e.offsetX; var y = e.offsetY; var i = Math.floor(x / 30); var j = Math.floor(y / 30); if(chressBord[i][j] == 0){
 oneStep(i,j,me);
 chressBord[i][j] = 1;//我 

 for(var k = 0; k < count; k++){ if(wins[i][j][k]){
 myWin[k]++;
 computerWin[k] = 6;//這個位置對方不可能贏了
 if(myWin[k] == 5){
 window.alert('你贏了');
 over = true;
 }
 }
 } if(!over){
 me = !me;
 computerAI();
 }
 }

}//計算機下棋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; 
 }
 }

 }
 }
 }
 oneStep(u,v,false);
 chressBord[u][v] = 2; for(var k = 0; k < count; k++){ if(wins[u][v][k]){
 computerWin[k]++;
 myWin[k] = 6;//這個位置對方不可能贏了
 if(computerWin[k] == 5){
 window.alert('計算機贏了');
 over = true;
 }
 }
 } if(!over){
 me = !me;
 }
}//繪畫棋盤var drawChessBoard = function(){
 for(var i = 0; i < 15; i++){
 context.moveTo(15 + i * 30 , 15);
 context.lineTo(15 + i * 30 , 435);
 context.stroke();
 context.moveTo(15 , 15 + i * 30);
 context.lineTo(435 , 15 + i * 30);
 context.stroke();
 }
}//畫旗子var oneStep = function(i,j,me){
 context.beginPath();
 context.arc(15 + i * 30, 15 + j * 30, 13, 0, 2 * Math.PI);//畫圓
 context.closePath(); //漸變
 var gradient = context.createRadialGradient(15 + i * 30 + 2, 15 + j * 30 - 2, 13, 15 + i * 30 + 2, 15 + j * 30 - 2, 0); if(me){
 gradient.addColorStop(0,'#0a0a0a');
 gradient.addColorStop(1,'#636766');
 }else{
 gradient.addColorStop(0,'#d1d1d1');
 gradient.addColorStop(1,'#f9f9f9');
 }
 context.fillStyle = gradient;
 context.fill();
}

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js實現(xiàn)五子棋代碼分享

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