a simple game

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alzami

i have been trying to make a simple game.i have managed to code the way i want the game to be played.i think every one know what this game is asap you see the codes.but problem is i cant find how to declare winner .the way i want to do it is not working.please help

<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>Untitled Document</title>
<style>
#shape{
	border:1px solid black;
	width:200px;
	height:200px;
}
td{
	border:1px solid black;
}
</style>

</head>

<body>
<table id="shape">
<tr >
<td onClick="add(this.id,0,0);" id="td1"></td>
<td onClick="add(this.id,0,1);" id="td2"></td>
<td onClick="add(this.id,0,2);" id="td3" 3</td>
</tr>
<tr >
<td onClick="add(this.id,1,0);" id="td4" ></td>
<td onClick="add(this.id,1,1);" id="td5"></td>
<td onClick="add(this.id,1,2);" id="td6"></td>
</tr>
<tr >
<td onClick="add(this.id,2,0);" id="td7" ></td>
<td onClick="add(this.id,2,1);" id="td8"></td>
<td onClick="add(this.id,2,2);" id="td9"></td>
</tr>
</table>
<script>

var arr =new Array(3)
for (i=0; i <3; i++){
arr[i]=new Array(3)
}
</script>
<script>
var i=0;
function add(el,r,c){
	var m=document.getElementById(el);
	i++;
	if(i%2==1){
		m.innerHTML="o";
		arr[r][c]=m.innerHTML;

}
if((arr[0][0]==arr[0][1]==arr[0][2]=="o") || (arr[0][0]==arr[1][0]==arr[2][0]=="o")){
	alert("player 1 wins");
	}
if(i%2==0){
	m.innerHTML="x";
	arr[r][c]=m.innerHTML;
}

}

</script>
</body>
</html>

JMRKER

A simple google search with 'javascript tic tac toe code'
will render this solution: http://www.javascriptkit.com/script/script2/tactoe.shtml

There are many other ways to skin this cat.

Here is a modification to your code using only a single array.
You can add the 'draw' logic easy enough.

<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>Tic-Tac-Toe Game</title>

<style>
 th { border:1px solid black; height:75px; width:75px; font-size:2.5em; }
</style>

</head>

<body>
<table id="shape" border="1">
<tr>
<th onClick="setXO(0,0);" id="t0"></th>
<th onClick="setXO(0,1);" id="t1"></th>
<th onClick="setXO(0,2);" id="t2"></th>
</tr>
<tr>
<th onClick="setXO(1,0);" id="t3"></th>
<th onClick="setXO(1,1);" id="t4"></th>
<th onClick="setXO(1,2);" id="t5"></th>
</tr>
<tr>
<th onClick="setXO(2,0);" id="t6"></th>
<th onClick="setXO(2,1);" id="t7"></th>
<th onClick="setXO(2,2);" id="t8"></th>
</tr>
</table>
<script>

var arr = ['','','', '','','', '','',''];
var player=0;

function setXO(r,c){
  var el;
  player++;
  var p = r*3+c; 
  if (player % 2 == 1) { arr[p] = 'O'; } else { arr[p] = 'X'; }
  for (var p=0; p<9; p++) {
    el = 't'+p;  document.getElementById(el).innerHTML = arr[p];
  }
  if (checkWinner('O')) { alert('O wins'); };
  if (checkWinner('X')) { alert('X wins'); };
}
function checkWinner(XO) {
  var flag = false;
// across
  if ( (arr[0] == XO) && (arr[0] == arr[1]) && (arr[1] == arr[2]) ) { flag = true; }
  if ( (arr[3] == XO) && (arr[3] == arr[4]) && (arr[4] == arr[5]) ) { flag = true; }
  if ( (arr[6] == XO) && (arr[6] == arr[7]) && (arr[7] == arr[8]) ) { flag = true; }
// down
  if ( (arr[0] == XO) && (arr[0] == arr[3]) && (arr[3] == arr[6]) ) { flag = true; }
  if ( (arr[1] == XO) && (arr[1] == arr[4]) && (arr[4] == arr[7]) ) { flag = true; }
  if ( (arr[2] == XO) && (arr[2] == arr[5]) && (arr[5] == arr[8]) ) { flag = true; }
// diagonal  

  if ( (arr[0] == XO) && (arr[0] == arr[4]) && (arr[4] == arr[8]) ) { flag = true; }
  if ( (arr[2] == XO) && (arr[2] == arr[4]) && (arr[4] == arr[6]) ) { flag = true; }
  return flag;
}
</script>
</body>
</html>

JMRKER

Some additional considerations for your game:

Stop user from clicking on already selected cell.
Tell user when game is over is they continue to click cells.
Stop game when a winner has been found.
Restart game without browser 'refresh'.