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";
?//棋子數(shù)組
?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] = [];
?}
}

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++;
?}
}

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++;
?}
}

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++;
?}
}

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++;
?}
}
var mywin = [];
var aiwin = [];
for(var i=0;i<count;i++)
?{
????? mywin[i]=0;
?? aiwin[i]=0;
??? }
?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();
}
?
? 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("你贏了!");
????? 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;//表示計算機在此處落子
? for(var k = 0;k<count;k++)
??{
??? if(wins[u][v][k])
???{
??????? aiwin[k]++;
???? mywin[k]=6;
???? if(aiwin[k]==5)
????{
???????? window.alert("計算機贏了!");
????? over = true;
????}
???}
??}
?? if(!over){
??? me=!me;
?? }
}

}