window.onload = function () {
var chess = document.getElementById("chess");
var context = chess.getContext("2d");
context.strokeStyle="BFBFBF";
var logo = new Image();
logo.src="images/zxm.png";
//棋子数组
var me = true;
var over = false;
var chessB = new Array();
for(var m=0;m<15;m++){
chessB[m] = new Array();
for(var n=0;n<15;n++){
chessB[m][n] = 0;
}
}
var wins = [];
var count = 0;
for(var i = 0; i < 15; i++) {
wins[i] = [];
for (var j = 0; j < 15; j++) {
wins[i][j] = [];
}
}
//横向
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++;
}
}
//纵向
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++;
}
}
//斜线
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++;
}
}
//反斜线
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++;
}
}
//赢法统计数组
var mywin = [];
var aiwin = [];
for(var i=0;i<count;i++)
{
mywin[i]=0;
aiwin[i]=0;
}
console.log(count);
logo.onload =function()
{
context.drawImage(logo,0,0,450,450);
chessBox();
}
var chessBox = 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();
}
}
var oneStep = function(i, j, me) {
context.beginPath();
context.arc(15 + i*30, 15 + j*30, 13, 0, 2 * Math.PI);
context.closePath();
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();
}
//先后下子
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 (chessB[i][j] == 0) {
oneStep(i, j, me);
chessB[i][j] = 1;
for(var k =0;k<count;k++)
{
if(wins[i][j][k]==true)
{
mywin[k]++;
aiwin[k]=6;
if(mywin[k]==5)
{
window.alert("你赢了!");
over = true;
}
}
}
if(!over){
computerAi();
me=!me;
}
}
}
//
var computerAi= function(){
var myScore = [];
var computerScore = [];
var max =0;
var u = 0,v = 0;
for(var i=0;i<15;i++)
{
myScore =[];
computerScore = [];
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(chessB[i][j]==0)
{
for(var k=0;k<count;k++)
{
if(wins[i][j][k]==true)
{
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(aiwin[k]==1)
{
computerScore[i][j]+=220;
}else if(aiwin[k]==2)
{
computerScore[i][j]+=420;
}else if(aiwin[k]==3)
{
computerScore[i][j]+=2100;
}else if(aiwin[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);
chessB[u][v] = 2;//表示计算机在此处落子
for(var k = 0;k<count;k++)
{
if(wins[u][v][k])
{
aiwin[k]++;
mywin[k]=6;
if(aiwin[k]==5)
{
window.alert("计算机赢了!");
over = true;
}
}
}
if(!over){
me=!me;
}
}
}
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