Code: Select all
<html>
<body>
<input type = "button" id = "tl" onclick = "buttonclick(this);" value = " ">
<input type = "button" id = "tc" onclick = "buttonclick(this);" value = " ">
<input type = "button" id = "tr" onclick = "buttonclick(this);" value = " "> <br>
<input type = "button" id = "cl" onclick = "buttonclick(this);" value = " ">
<input type = "button" id = "cc" onclick = "buttonclick(this);" value = " ">
<input type = "button" id = "cr" onclick = "buttonclick(this);" value = " "> <br>
<input type = "button" id = "bl" onclick = "buttonclick(this);" value = " ">
<input type = "button" id = "bc" onclick = "buttonclick(this);" value = " ">
<input type = "button" id = "br" onclick = "buttonclick(this);" value = " "> <br>
<script type="text/javascript">
clearboard();
var tl = document.getElementById("tl");
var tc = document.getElementById("tc");
var tr = document.getElementById("tr");
var cl = document.getElementById("cl");
var cc = document.getElementById("cc");
var cr = document.getElementById("cr");
var bl = document.getElementById("bl");
var bc = document.getElementById("bc");
var br = document.getElementById("br");
function buttonclick(but){
but.value = "X";
checkforwin();
}
function checkforwin(){
if(tl.value == "X" && tc.value == "X" && tr.value == "X"){alert("You win!");clearboard();return;}
if(tl.value == "X" && cl.value == "X" && bl.value == "X"){alert("You win!");clearboard();return;}
if(tc.value == "X" && cc.value == "X" && bc.value == "X"){alert("You win!");clearboard();return;}
if(tr.value == "X" && cr.value == "X" && br.value == "X"){alert("You win!");clearboard();return;}
if(cl.value == "X" && cc.value == "X" && cr.value == "X"){alert("You win!");clearboard();return;}
if(bl.value == "X" && bc.value == "X" && br.value == "X"){alert("You win!");clearboard();return;}
if(tl.value == "X" && cc.value == "X" && br.value == "X"){alert("You win!");clearboard();return;}
if(tr.value == "X" && cc.value == "X" && bl.value == "X"){alert("You win!");clearboard();return;}
AIGo();
if(tl.value == "O" && tc.value == "O" && tr.value == "O"){alert("You lose!");clearboard();return;}
if(tl.value == "O" && cl.value == "O" && bl.value == "O"){alert("You lose!");clearboard();return;}
if(tc.value == "O" && cc.value == "O" && bc.value == "O"){alert("You lose!");clearboard();return;}
if(tr.value == "O" && cr.value == "O" && br.value == "O"){alert("You lose!");clearboard();return;}
if(cl.value == "O" && cc.value == "O" && cr.value == "O"){alert("You lose!");clearboard();return;}
if(bl.value == "O" && bc.value == "O" && br.value == "O"){alert("You lose!");clearboard();return;}
if(tl.value == "O" && cc.value == "O" && br.value == "O"){alert("You lose!");clearboard();return;}
if(tr.value == "O" && cc.value == "O" && bl.value == "O"){alert("You lose!");clearboard();return;}
if(xoro(tl) && xoro(tr) && xoro(tc) && xoro(cl) && xoro(cc) && xoro(cr) && xoro(bl) && xoro(bc) && xoro(br)){
alert("Stalemate!");
clearboard();
return;}
}
function clearboard(){
document.getElementById("tl").value = " ";
document.getElementById("tc").value = " ";
document.getElementById("tr").value = " ";
document.getElementById("cl").value = " ";
document.getElementById("cc").value = " ";
document.getElementById("cr").value = " ";
document.getElementById("bl").value = " ";
document.getElementById("bc").value = " ";
document.getElementById("br").value = " ";
WhoGoesFirst();
}
function AIGo(){
//checkforwin
if (checkbuttons(tl,tc,tr,"O")){return;}
if (checkbuttons(bl,cc,tr,"O")){return;}
if (checkbuttons(tl,cc,br,"O")){return;}
if (checkbuttons(tr,cr,br,"O")){return;}
if (checkbuttons(tc,bc,cc,"O")){return;}
if (checkbuttons(tl,cl,bl,"O")){return;}
if (checkbuttons(cl,cc,cr,"O")){return;}
if (checkbuttons(bl,bc,br,"O")){return;}
//checkforblock
if (checkbuttons(tl,tc,tr,"X")){return;}
if (checkbuttons(bl,cc,tr,"X")){return;}
if (checkbuttons(tl,cc,br,"X")){return;}
if (checkbuttons(tr,cr,br,"X")){return;}
if (checkbuttons(tc,bc,cc,"X")){return;}
if (checkbuttons(tl,cl,bl,"X")){return;}
if (checkbuttons(cl,cc,cr,"X")){return;}
if (checkbuttons(bl,bc,br,"X")){return;}
//placeanO
if (tl.value == " "){tl.value = "O"; return;}
if (tr.value == " "){tr.value = "O"; return;}
if (tc.value == " "){tc.value = "O"; return;}
if (cl.value == " "){cl.value = "O"; return;}
if (cc.value == " "){cc.value = "O"; return;}
if (cr.value == " "){cr.value = "O"; return;}
if (bl.value == " "){bl.value = "O"; return;}
if (br.value == " "){br.value = "O"; return;}
if (bc.value == " "){bc.value = "O"; return;}
}
function ooblank(elm1,elm2,elm3,letter){
if(elm1.value == letter && elm2.value == letter && elm3.value == " "){return 3;}
if(elm1.value == letter && elm2.value == " " && elm3.value == letter){return 2;}
if(elm1.value == " " && elm2.value == letter && elm3.value == letter){return 1;}
return 0;
}
function checkbuttons(elm1,elm2,elm3,letter){
var index = ooblank(elm1,elm2,elm3,letter);
switch(index){
case 1:
elm1.value = "O";
return true;
case 2:
elm2.value = "O";
return true;
case 3:
elm3.value = "O";
return true;
}
return false;
}
function xoro(elm1){
if (elm1.value == "X" || elm1.value == "O") return true;
return false;
}
function randomo(){
var number = Math.floor(Math.random()*9)+1;
switch(number){
case 1:
tl.value = "O";
return;
case 2:
tc.value = "O";
return;
case 3:
tr.value = "O";
return;
case 4:
cl.value = "O";
return;
case 5:
cc.value = "O";
return;
case 6:
cr.value = "O";
return;
case 7:
bl.value = "O";
return;
case 8:
bc.value = "O";
return;
case 9:
br.value = "O";
return;
}
}
function WhoGoesFirst(){
if (Math.random()<=0.5){
randomo();
}
}
</script>
</body>
</html>
