كود لعبة X و O الشهيرة

<SCRIPT LANGUAGE="LiveScript"><br /> <!---Copyright 1996 Chris Englmeier<br /> <!---Feel free to use this script as long as these copyright<br /> <!-- line remain as is<br /> <!-- <br /> step = 0;<br /> diff=3;<br /> // change board when button is clicked<br /> function clear_all(form) {<br /> step = 0;<br /> for (i=0;i<9; ++i) {<br /> position="a"+i;<br /> form[position].value="";<br /> }<br /> }<br /> // change board when button is clicked<br /> function clickit(field) {<br /> if (step == -1) {alert("حاول اللعب من جديد"); return;}<br /> position=field.name.substring(1,2,1);<br /> position = 'a'+position;<br /> if (field.form[position].value !="") <br /> {alert("Can't go there"); return;}<br /> field.form[position].value="X";<br /> if (eval_pos(field.form)) {<br /> field.form.output.value="مبروك فزت!"; <br /> step = -1;<br /> return;<br /> }<br /> position=get_move(field.form);<br /> field.form.output.value='I moved to ' + <br /> position.substring(1,2,1);<br /> if (position=="") {<br /> field.form.output.value="لم يفز أحد"; <br /> step = -1;<br /> return;<br /> }<br /> field.form[position].value="O";<br /> if (eval_pos(field.form)) {<br /> field.form.output.value="لقد خسرت!";<br /> step = -1;<br /> }<br /> }<br /> // see if there is a winner<br /> function eval_pos(form) {<br /> if ((form.a0.value!="" && form.a0.value==form.a3.value && <br /> form.a0.value==form.a6.value)||<br /> (form.a0.value!="" && form.a0.value==form.a1.value && <br /> form.a0.value==form.a2.value) ||<br /> (form.a0.value!="" && form.a0.value==form.a4.value && <br /> form.a0.value==form.a8.value) ||<br /> (form.a1.value!="" && form.a1.value==form.a4.value && <br /> form.a1.value==form.a7.value) ||<br /> (form.a2.value!="" && form.a2.value==form.a5.value && <br /> form.a2.value==form.a8.value) ||<br /> (form.a2.value!="" && form.a2.value==form.a4.value && <br /> form.a2.value==form.a6.value) ||<br /> (form.a3.value!="" && form.a3.value==form.a4.value && <br /> form.a3.value==form.a5.value) ||<br /> (form.a6.value!="" && form.a6.value==form.a7.value && <br /> form.a6.value==form.a8.value))<br /> return true;<br /> else <br /> return false;<br /> }<br /> function f(a) {<br /> if (a == "") return "."; else return a;<br /> }<br /> // get position for move.<br /> function comp_move(form,player,weight,depth) {<br /> var cost;<br /> var bestcost=-2;<br /> var position;<br /> var newplayer;<br /> if (player=="X") newplayer="O"; else newplayer="X";<br /> if (depth==diff) return 0;<br /> if (eval_pos(form)) return 1;<br /> for (var i=0; i<9; ++i) {<br /> position='a'+i;<br /> if (form[position].value != "")<br /> continue;<br /> form[position].value=player;<br /> cost = comp_move(form,newplayer, -weight, depth+1);<br /> if (cost > bestcost) {<br /> bestcost=cost;<br /> if (cost==1) i=9;<br /> }<br /> form[position].value="";<br /> }<br /> if (bestcost==-2) bestcost=0;<br /> return(-bestcost);<br /> }<br /> // get position for move.<br /> function get_move(form) {<br /> var cost;<br /> var bestcost=-2;<br /> bestmove="";<br /> // don't think about first move.<br /> if (step++ == 0)<br /> if (form.a4.value=="") return "a4";<br /> else if (form.a0.value=="") return "a0";<br /> for (var i=0; i<9; ++i) {<br /> localposition='a'+i;<br /> if (form[localposition].value != "")<br /> continue;<br /> form[localposition].value="O";<br /> cost=comp_move(form,"X", -1, 0);<br /> if (cost > bestcost) {<br /> if (cost==1) i=9;<br /> bestmove=localposition;<br /> bestcost=cost;<br /> }<br /> form[localposition].value="";<br /> }<br /> return bestmove;<br /> }<br /> // complain if user attempts to change board<br /> function complain(field) {<br /> field.form.output.focus(); // put focus eleswhere<br /> alert("Don't change the game fields directly!");<br /> }<br /> //a href="http://www.ucsd.edu/<br /> // the end --><br /> </SCRIPT> <br /><FORM><br /> <INPUT SIZE=1 NAME="a0" OnFocus="complain(this)"> <br /> <INPUT TYPE="button" NAME="b0" OnClick="clickit(this)"><br /> <INPUT SIZE=1 NAME="a1" OnFocus="complain(this)"> <br /> <INPUT TYPE="button" NAME="b1" OnClick="clickit(this)"><br /> <INPUT SIZE=1 NAME="a2" OnFocus="complain(this)"> <br /> <INPUT TYPE="button" NAME="b2" OnClick="clickit(this)"><BR><br /> <INPUT SIZE=1 NAME="a3" OnFocus="complain(this)"> <br /> <INPUT TYPE="button" NAME="b3" OnClick="clickit(this)"><br /> <INPUT SIZE=1 NAME="a4" OnFocus="complain(this)"> <br /> <INPUT TYPE="button" NAME="b4" OnClick="clickit(this)"><br /> <INPUT SIZE=1 NAME="a5" OnFocus="complain(this)"> <br /> <INPUT TYPE="button" NAME="b5" OnClick="clickit(this)"><BR><br /> <INPUT SIZE=1 NAME="a6" OnFocus="complain(this)"> <br /> <INPUT TYPE="button" NAME="b6" OnClick="clickit(this)"><br /> <INPUT SIZE=1 NAME="a7" OnFocus="complain(this)"> <br /> <INPUT TYPE="button" NAME="b7" OnClick="clickit(this)"><br /> <INPUT SIZE=1 NAME="a8" OnFocus="complain(this)"> <br /> <INPUT TYPE="button" NAME="b8" OnClick="clickit(this)"><BR><br /> <table border=0><tr><td><br /> النتيجة:</td><td> <INPUT NAME="output" TYPE="text" size="20"></td></tr><br /> <tr><td>مستوى: </td><td><SELECT NAME="difficulty" <br /> OnChange="diff=form.difficulty[form.difficulty.selectedIndex].value;"><br /> <OPTION VALUE=1> Very Easy<br /> <OPTION VALUE=2> Easy<br /> <OPTION VALUE=3 SELECTED> Medium<br /> <OPTION VALUE=4> Hard (may think a long time)<br /> </SELECT></td></tr><br /> <tr><td></td><td><INPUT TYPE="button" VALUE="الكمبيوتر يبدأ اولا" <br /> OnClick="if (!step++) this.form.a4.value='O';"></td></tr><br /> <tr><td></td><br /> <td><INPUT TYPE="reset" VALUE="جديد" <br /> OnClick="clear_all(this.form)"></td></tr><br /> </table><br /> </FORM><br />