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app.js
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var playturn1 = document.getElementById("playerturn1");
var playturn2 = document.getElementById("playerturn2");
var starting = false;
var display_won = document.getElementById("who_won");
var player_turn = 1; // 1 for 'player 1' and 2 for 'player 2'
//creating 1d array
var arr = new Array(3);
//creating 2d array
for(var i = 0;i<arr.length;i++){
arr[i] = [];
}
initializing_zero();
//initializing the array with 0
// 0 means nothing
// 1 means X (cross)
// 2 means O (circle)
function initializing_zero(){
for(var i = 0;i<arr.length;i++){
for(var j = 0; j<arr.length;j++){
arr[i][j] = 0;
}
}}
//function returns 0 if its a tie, 1 if 'X' won and 2 if 'O' won
function who_won(){
var anchor_point;
for(var i=0;i<3;i++){
anchor_point = arr[i][i];
if(anchor_point == 0){
continue;}
else if(i==0){
if(arr[0][1] == arr[0][2] && arr[0][1]== anchor_point)
return anchor_point;
else if(arr[1][0] == arr[2][0] && arr[1][0] == anchor_point)
return anchor_point;
else if(arr[1][1] == arr[2][2] && arr[1][1] == anchor_point)
return anchor_point;
}
else if(i==1){
if(arr[1][0] == arr[1][2] && arr[1][0] == anchor_point)
return anchor_point;
else if(arr[0][1] == arr[2][1] && arr[0][1] == anchor_point)
return anchor_point;
else if(arr[0][2] == arr[2][0] && arr[0][2] == anchor_point)
return anchor_point;
}
else if(i==2){
if(arr[2][0] == arr[2][1] && arr[2][0] == anchor_point)
return anchor_point;
else if(arr[0][2] == arr[1][2] && arr[0][2] == anchor_point)
return anchor_point;
}
}
return 0;
}
function getresponse(clicked_id){
if(starting == true){
display_player_chance(player_turn);
fill_grid(clicked_id);
if(who_won() == 1 || who_won() == 2){
starting = false;
xyz(who_won());
playturn1.style.visibility = "hidden";
playturn2.style.visibility = "hidden";
}
else if(who_won() == 0 && is_full(arr) == true){
starting = false;
xyz(who_won());
playturn1.style.visibility = "hidden";
playturn2.style.visibility = "hidden";
}
}
}
function xyz(x){
display_won.style.visibility = "visible";
if(x == 1)
display_won.innerHTML = "Player X Won";
else if(x == 2)
display_won.innerHTML = "Player O Won";
else if(x == 0)
display_won.innerHTML = "Its a Tie";
}
function is_full(arr){
var count = 0;
for(var i=0; i<3; i++){
if(arr[i].indexOf(0) == -1)
count+=1;
}
if(count == 3)
return true;
else
return false;
}
function display_player_chance(player_turn){
if(starting == true){
if(player_turn == 2){
playturn1.style.visibility = "visible";
playturn2.style.visibility = "hidden";
}
else if(player_turn == 1){
playturn2.style.visibility = "visible";
playturn1.style.visibility = "hidden";
}
}}
function fill_grid(clicked_id){
if(starting == true){
var a = parseInt(clicked_id[0]) - 1;
var b = parseInt(clicked_id[1]) - 1;
if(arr[a][b] == 0){
if(player_turn == 1){
arr[a][b] = 1;
player_turn = 2;
display_cross(clicked_id);
}
else if(player_turn == 2){
arr[a][b] = 2;
player_turn = 1;
display_circle(clicked_id);
}
}
}}
function display_cross(clicked_id){
var img123 = document.createElement("img");
img123.src = "image/cross.png";
img123.style.position = "absolute"
img123.className = "new_element";
display_at_position_clicked(clicked_id, img123);
}
//this will display either X or O at the clicked position
function display_at_position_clicked(clicked_id, img123){
var div_grid = document.getElementById("cant_think_of_anything");
if(clicked_id == "11"){
img123.style.top = "10px";
img123.style.left = "140px";
div_grid.appendChild(img123);
}
else if(clicked_id == "12"){
img123.style.top = "10px";
img123.style.left = "282px";
div_grid.appendChild(img123);
}
else if(clicked_id == "13"){
img123.style.top = "10px";
img123.style.left = "424px";
div_grid.appendChild(img123);
}
else if(clicked_id == "21"){
img123.style.top = "152px";
img123.style.left = "140px";
div_grid.appendChild(img123);
}
else if(clicked_id == "22"){
img123.style.top = "152px";
img123.style.left = "282px";
div_grid.appendChild(img123);
}
else if(clicked_id == "23"){
img123.style.top = "152px";
img123.style.left = "424px";
div_grid.appendChild(img123);
}
else if(clicked_id == "31"){
img123.style.top = "294px";
img123.style.left = "140px";
div_grid.appendChild(img123);
}
else if(clicked_id == "32"){
img123.style.top = "294px";
img123.style.left = "282px";
div_grid.appendChild(img123);
}
else if(clicked_id == "33"){
img123.style.top = "294px";
img123.style.left = "424px";
div_grid.appendChild(img123);
}
}
//this function will reset the grids
function reset_fun(){
var new_elements = document.getElementsByClassName("new_element");
var start_btn = document.getElementById("start_btn");
var reset_btn = document.getElementById("reset_btn");
playturn1.style.visibility = "hidden";
playturn2.style.visibility = "hidden";
display_won.style.visibility = "hidden";
initializing_zero();
//this removes all the X and O element that were created
while(new_elements.length!=0){
new_elements[0].remove();
}
start_btn.style.visibility = "visible";
starting=false;
reset_btn.style.visibility = "hidden";
}
//start function
function start_fun(){
var start_btn = document.getElementById("start_btn");
var reset_btn = document.getElementById("reset_btn");
starting = true;
playturn1.style.visibility = "visible";
start_btn.style.visibility = "hidden";
reset_btn.style.visibility = "visible";
player_turn = 1;
}
function display_circle(clicked_id){
var img123 = document.createElement("img");
img123.src = "image/circle.png";
img123.style.position = "absolute"
img123.className = "new_element";
display_at_position_clicked(clicked_id, img123);
}