使用JavaScript实现井字棋人工智能对战

/*
Code Written by Cory Fogliani (Email: cory@ijustdontcare.com)
Testers: Cory Fogliani, Chris Gordon
Featured on JavaScript Kit (http://javascriptkit.com)
For this and over 400+ free scripts, visit http://javascriptkit.com */
//if IE4/NS6, apply style
if (document.all || document.getElementById) {
document.write('.tictac{')
document.write('width:50px;height:50px;')
document.write('}')
}
var sqr1
var sqr2
var sqr3
var sqr4
var sqr5
var sqr6
var sqr7
var sqr8
var sqr9
var sqr1T = 0
var sqr2T = 0
var sqr3T = 0
var sqr4T = 0
var sqr5T = 0
var sqr6T = 0
var sqr7T = 0
var sqr8T = 0
var sqr9T = 0
var moveCount = 0
var turn = 0
var mode = 1
function vari() {
sqr1 = document.getElementById('sqr1').value
sqr2 = document.getElementById('sqr2').value
sqr3 = document.getElementById('sqr3').value
sqr4 = document.getElementById('sqr4').value
sqr5 = document.getElementById('sqr5').value
sqr6 = document.getElementById('sqr6').value
sqr7 = document.getElementById('sqr7').value
sqr8 = document.getElementById('sqr8').value
sqr9 = document.getElementById('sqr9').value
}
function check() {
if (sqr1 == " X " && sqr2 == " X " && sqr3 == " X ") {
alert("You Win!")
reset()
}
else if (sqr4 == " X " && sqr5 == " X " && sqr6 == " X ") {
alert("You Win!")
reset()
}
else if (sqr7 == " X " && sqr8 == " X " && sqr9 == " X ") {
alert("You Win!")
reset()
}
else if (sqr1 == " X " && sqr5 == " X " && sqr9 == " X ") {
alert("You Win!")
reset()
}
else if (sqr1 == " X " && sqr4 == " X " && sqr7 == " X ") {
alert("You Win!")
reset()
}
else if (sqr2 == " X " && sqr5 == " X " && sqr8 == " X ") {
alert("You Win!")
reset()
}
else if (sqr3 == " X " && sqr6 == " X " && sqr9 == " X ") {
alert("You Win!")
reset()
}
else if (sqr1 == " X " && sqr5 == " X " && sqr9 == " X ") {
alert("You Win!")
reset()
}
else if (sqr3 == " X " && sqr5 == " X " && sqr7 == " X ") {
alert("You Win!")
reset()
}
else {
winCheck()
check2()
drawCheck()
}
}
function check2() {
vari()
drawCheck()
if (sqr1 == " O " && sqr2 == " O " && sqr3 == " O ") {
alert("You Lose!")
reset()
}
else if (sqr4 == " O " && sqr5 == " O " && sqr6 == " O ") {
alert("You Lose!")
reset()
}
else if (sqr7 == " O " && sqr8 == " O " && sqr9 == " O ") {
alert("You Lose!")
reset()
}
else if (sqr1 == " O " && sqr5 == " O " && sqr9 == " O ") {
alert("You Lose!")
reset()
}
else if (sqr1 == " O " && sqr4 == " O " && sqr7 == " O ") {
alert("You Lose!")
reset()
}
else if (sqr2 == " O " && sqr5 == " O " && sqr8 == " O ") {
alert("You Lose!")
reset()
}
else if (sqr3 == " O " && sqr6 == " O " && sqr9 == " O ") {
alert("You Lose!")
reset()
}
else if (sqr1 == " O " && sqr5 == " O " && sqr9 == " O ") {
alert("You Lose!")
reset()
}
else if (sqr3 == " O " && sqr5 == " O " && sqr7 == " O ") {
alert("You Lose!")
reset()
}
}
function player1Check() {
if (sqr1 == " X " && sqr2 == " X " && sqr3 == " X ") {
alert("Player 1 wins!")
reset()
}
else if (sqr4 == " X " && sqr5 == " X " && sqr6 == " X ") {
alert("Player 1 wins!")
reset()
}
else if (sqr7 == " X " && sqr8 == " X " && sqr9 == " X ") {
alert("Player 1 wins!")
reset()
}
else if (sqr1 == " X " && sqr5 == " X " && sqr9 == " X ") {
alert("Player 1 wins!")
reset()
}
else if (sqr1 == " X " && sqr4 == " X " && sqr7 == " X ") {
alert("Player 1 wins!")
reset()
}
else if (sqr2 == " X " && sqr5 == " X " && sqr8 == " X ") {
alert("Player 1 wins!")
reset()
}
else if (sqr3 == " X " && sqr6 == " X " && sqr9 == " X ") {
alert("Player 1 wins!")
reset()
}
else if (sqr1 == " X " && sqr5 == " X " && sqr9 == " X ") {
alert("Player 1 wins!")
reset()
}
else if (sqr3 == " X " && sqr5 == " X " && sqr7 == " X ") {
alert("Player 1 wins!")
reset()
}
else {
player2Check()
drawCheck()
}
}
function player2Check() {
vari()
drawCheck()
if (sqr1 == " O " && sqr2 == " O " && sqr3 == " O ") {
alert("Player 2 wins!")
reset()
}
else if (sqr4 == " O " && sqr5 == " O " && sqr6 == " O ") {
alert("Player 2 wins!")
reset()
}
else if (sqr7 == " O " && sqr8 == " O " && sqr9 == " O ") {
alert("Player 2 wins!")
reset()
}
else if (sqr1 == " O " && sqr5 == " O " && sqr9 == " O ") {
alert("Player 2 wins!")
reset()
}
else if (sqr1 == " O " && sqr4 == " O " && sqr7 == " O ") {
alert("Player 2 wins!")
reset()
}
else if (sqr2 == " O " && sqr5 == " O " && sqr8 == " O ") {
alert("Player 2 wins!")
reset()
}
else if (sqr3 == " O " && sqr6 == " O " && sqr9 == " O ") {
alert("Player 2 wins!")
reset()
}
else if (sqr1 == " O " && sqr5 == " O " && sqr9 == " O ") {
alert("Player 2 wins!")
reset()
}
else if (sqr3 == " O " && sqr5 == " O " && sqr7 == " O ") {
alert("Player 2 wins!")
reset()
}
}
function drawCheck() {
vari()
moveCount = sqr1T + sqr2T + sqr3T + sqr4T + sqr5T + sqr6T + sqr7T + sqr8T + sqr9T
if (moveCount == 9) {
reset()
alert("Draw")
}
}
function winCheck() {
check2()
if (sqr1 == " O " && sqr2 == " O " && sqr3T == 0 && turn == 1) {
document.getElementById('sqr3').value = " O "
sqr3T = 1;
turn = 0;
}
else if (sqr2 == " O " && sqr3 == " O " && sqr1T == 0 && turn == 1) {
document.getElementById('sqr1').value = " O "
sqr1T = 1;
turn = 0;
}
else if (sqr4 == " O " && sqr5 == " O " && sqr6T == 0 && turn == 1) {
document.getElementById('sqr6').value = " O "
sqr6T = 1;
turn = 0;
}
else if (sqr5 == " O " && sqr6 == " O " && sqr4T == 0 && turn == 1) {
document.getElementById('sqr4').value = " O "
sqr4T = 1;
turn = 0;
}
else if (sqr7 == " O " && sqr8 == " O " && sqr9T == 0 && turn == 1) {
document.getElementById('sqr9').value = " O "
sqr9T = 1;
turn = 0;
}
else if (sqr8 == " O " && sqr9 == " O " && sqr7T == 0 && turn == 1) {
document.getElementById('sqr7').value = " O "
sqr7T = 1;
turn = 0;
}
else if (sqr1 == " O " && sqr5 == " O " && sqr9T == 0 && turn == 1) {
document.getElementById('sqr9').value = " O "
sqr9T = 1;
turn = 0;
}
else if (sqr5 == " O " && sqr9 == " O " && sqr1T == 0 && turn == 1) {
document.getElementById('sqr1').value = " O "
sqr1T = 1;
turn = 0;
}
else if (sqr3 == " O " && sqr5 == " O " && sqr7T == 0 && turn == 1) {
document.getElementById('sqr7').value = " O "
sqr7T = 1;
turn = 0;
}
else if (sqr7 == " O " && sqr5 == " O " && sqr3T == 0 && turn == 1) {
document.getElementById('sqr3').value = " O "
sqr3T = 1;
turn = 0;
}
else if (sqr1 == " O " && sqr3 == " O " && sqr2T == 0 && turn == 1) {
document.getElementById('sqr2').value = " O "
sqr2T = 1;
turn = 0;
}
else if (sqr4 == " O " && sqr6 == " O " && sqr5T == 0 && turn == 1) {
document.getElementById('sqr5').value = " O "
sqr5T = 1;
turn = 0;
}
else if (sqr7 == " O " && sqr9 == " O " && sqr8T == 0 && turn == 1) {
document.getElementById('sqr8').value = " O "
sqr8T = 1;
turn = 0;
}
else if (sqr1 == " O " && sqr7 == " O " && sqr4T == 0 && turn == 1) {
document.getElementById('sqr4').value = " O "
sqr4T = 1;
turn = 0;
}
else if (sqr2 == " O " && sqr8 == " O " && sqr5T == 0 && turn == 1) {
document.getElementById('sqr5').value = " O "
sqr5T = 1;
turn = 0;
}
else if (sqr3 == " O " && sqr9 == " O " && sqr6T == 0 && turn == 1) {
document.getElementById('sqr6').value = " O "
sqr6T = 1;
turn = 0;
}
else if (sqr1 == " O " && sqr5 == " O " && sqr9T == 0 && turn == 1) {
document.getElementById('sqr9').value = " O "
sqr9T = 1;
turn = 0;
}
else if (sqr4 == " O " && sqr7 == " O " && sqr1T == 0 && turn == 1) {
document.getElementById('sqr1').value = " O "
sqr1T = 1;
turn = 0;
}
else if (sqr5 == " O " && sqr8 == " O " && sqr2T == 0 && turn == 1) {
document.getElementById('sqr2').value = " O "
sqr2T = 1;
turn = 0;
}
else if (sqr6 == " O " && sqr9 == " O " && sqr3T == 0 && turn == 1) {
document.getElementById('sqr3').value = " O "
sqr3T = 1;
turn = 0;
}
else if (sqr1 == " O " && sqr4 == " O " && sqr7T == 0 && turn == 1) {
document.getElementById('sqr7').value = " O "
sqr7T = 1;
turn = 0;
}
else if (sqr2 == " O " && sqr5 == " O " && sqr8T == 0 && turn == 1) {
document.getElementById('sqr8').value = " O "
sqr8T = 1;
turn = 0;
}
else if (sqr3 == " O " && sqr6 == " O " && sqr9T == 0 && turn == 1) {
document.getElementById('sqr9').value = " O "
sqr9T = 1;
turn = 0;
}
else if (sqr1 == " O " && sqr9 == " O " && sqr5T == 0 && turn == 1) {
document.getElementById('sqr5').value = " O "
sqr5T = 1;
turn = 0;
}
else if (sqr3 == " O " && sqr7 == " O " && sqr5T == 0 && turn == 1) {
document.getElementById('sqr5').value = " O "
sqr5T = 1;
turn = 0;
}
else {
computer()
}
check2()
}
function computer() {
check2()
if (sqr1 == " X " && sqr2 == " X " && sqr3T == 0 && turn == 1) {
document.getElementById('sqr3').value = " O "
sqr3T = 1;
turn = 0;
}
else if (sqr2 == " X " && sqr3 == " X " && sqr1T == 0 && turn == 1) {
document.getElementById('sqr1').value = " O "
sqr1T = 1;
turn = 0;
}
else if (sqr4 == " X " && sqr5 == " X " && sqr6T == 0 && turn == 1) {
document.getElementById('sqr6').value = " O "
sqr6T = 1;
turn = 0;
}
else if (sqr5 == " X " && sqr6 == " X " && sqr4T == 0 && turn == 1) {
document.getElementById('sqr4').value = " O "
sqr4T = 1;
turn = 0;
}
else if (sqr7 == " X " && sqr8 == " X " && sqr9T == 0 && turn == 1) {
document.getElementById('sqr9').value = " O "
sqr9T = 1;
turn = 0;
}
else if (sqr8 == " X " && sqr9 == " X " && sqr7T == 0 && turn == 1) {
document.getElementById('sqr7').value = " O "
sqr7T = 1;
turn = 0;
}
else if (sqr1 == " X " && sqr5 == " X " && sqr9T == 0 && turn == 1) {
document.getElementById('sqr9').value = " O "
sqr9T = 1;
turn = 0;
}
else if (sqr5 == " X " && sqr9 == " X " && sqr1T == 0 && turn == 1) {
document.getElementById('sqr1').value = " O "
sqr1T = 1;
turn = 0;
}
else if (sqr3 == " X " && sqr5 == " X " && sqr7T == 0 && turn == 1) {
document.getElementById('sqr7').value = " O "
sqr7T = 1;
turn = 0;
}
else if (sqr7 == " X " && sqr5 == " X " && sqr3T == 0 && turn == 1) {
document.getElementById('sqr3').value = " O "
sqr3T = 1;
turn = 0;
}
else if (sqr1 == " X " && sqr3 == " X " && sqr2T == 0 && turn == 1) {
document.getElementById('sqr2').value = " O "
sqr2T = 1;
turn = 0;
}
else if (sqr4 == " X " && sqr6 == " X " && sqr5T == 0 && turn == 1) {
document.getElementById('sqr5').value = " O "
sqr5T = 1;
turn = 0;
}
else if (sqr7 == " X " && sqr9 == " X " && sqr8T == 0 && turn == 1) {
document.getElementById('sqr8').value = " O "
sqr8T = 1;
turn = 0;
}
else if (sqr1 == " X " && sqr7 == " X " && sqr4T == 0 && turn == 1) {
document.getElementById('sqr4').value = " O "
sqr4T = 1;
turn = 0;
}
else if (sqr2 == " X " && sqr8 == " X " && sqr5T == 0 && turn == 1) {
document.getElementById('sqr5').value = " O "
sqr5T = 1;
turn = 0;
}
else if (sqr3 == " X " && sqr9 == " X " && sqr6T == 0 && turn == 1) {
document.getElementById('sqr6').value = " O "
sqr6T = 1;
turn = 0;
}
else if (sqr1 == " X " && sqr5 == " X " && sqr9T == 0 && turn == 1) {
document.getElementById('sqr9').value = " O "
sqr9T = 1;
turn = 0;
}
else if (sqr4 == " X " && sqr7 == " X " && sqr1T == 0 && turn == 1) {
document.getElementById('sqr1').value = " O "
sqr1T = 1;
turn = 0;
}
else if (sqr5 == " X " && sqr8 == " X " && sqr2T == 0 && turn == 1) {
document.getElementById('sqr2').value = " O "
sqr2T = 1;
turn = 0;
}
else if (sqr6 == " X " && sqr9 == " X " && sqr3T == 0 && turn == 1) {
document.getElementById('sqr3').value = " O "
sqr3T = 1;
turn = 0;
}
else if (sqr1 == " X " && sqr4 == " X " && sqr7T == 0 && turn == 1) {
document.getElementById('sqr7').value = " O "
sqr7T = 1;
turn = 0;
}
else if (sqr2 == " X " && sqr5 == " X " && sqr8T == 0 && turn == 1) {
document.getElementById('sqr8').value = " O "
sqr8T = 1;
turn = 0;
}
else if (sqr3 == " X " && sqr6 == " X " && sqr9T == 0 && turn == 1) {
document.getElementById('sqr9').value = " O "
sqr9T = 1;
turn = 0;
}
else if (sqr1 == " X " && sqr9 == " X " && sqr5T == 0 && turn == 1) {
document.getElementById('sqr5').value = " O "
sqr5T = 1;
turn = 0;
}
else if (sqr3 == " X " && sqr7 == " X " && sqr5T == 0 && turn == 1) {
document.getElementById('sqr5').value = " O "
sqr5T = 1;
turn = 0;
}
else {
AI()
}
check2()
}
function AI() {
vari()
if (document.getElementById('sqr5').value == " " && turn == 1) {
document.getElementById('sqr5').value = " O "
turn = 0
sqr5T = 1
}
else if (document.getElementById('sqr1').value == " " && turn == 1) {
document.getElementById('sqr1').value = " O "
turn = 0
sqr1T = 1
}
else if (document.getElementById('sqr9').value == " " && turn == 1) {
document.getElementById('sqr9').value = " O "
turn = 0
sqr9T = 1
}
else if (document.getElementById('sqr6').value == " " && turn == 1) {
document.getElementById('sqr6').value = " O "
turn = 0
sqr6T = 1
}
else if (document.getElementById('sqr2').value == " " && turn == 1) {
document.getElementById('sqr2').value = " O "
turn = 0
sqr2T = 1
}
else if (document.getElementById('sqr8').value == " " && turn == 1) {
document.getElementById('sqr8').value = " O "
turn = 0
sqr8T = 1
}
else if (document.getElementById('sqr3').value == " " && turn == 1) {
document.getElementById('sqr3').value = " O "
turn = 0
sqr3T = 1
}
else if (document.getElementById('sqr7').value == " " && turn == 1) {
document.getElementById('sqr7').value = " O "
turn = 0
sqr7T = 1
}
else if (document.getElementById('sqr4').value == " " && turn == 1) {
document.getElementById('sqr4').value = " O "
turn = 0
sqr4T = 1
}
check2()
}
function reset() {
document.getElementById('sqr1').value = " "
document.getElementById('sqr2').value = " "
document.getElementById('sqr3').value = " "
document.getElementById('sqr4').value = " "
document.getElementById('sqr5').value = " "
document.getElementById('sqr6').value = " "
document.getElementById('sqr7').value = " "
document.getElementById('sqr8').value = " "
document.getElementById('sqr9').value = " "
sqr1T = 0
sqr2T = 0
sqr3T = 0
sqr4T = 0
sqr5T = 0
sqr6T = 0
sqr7T = 0
sqr8T = 0
sqr9T = 0
vari()
turn = 0
moveCount = 0

}
function resetter() {
reset()
}

JavaScript代码挺长的,我就不贴出来了,有兴趣的可以查看页面的源文件.

转自: http://javascriptkit.com/script/script2/tactoe.shtml