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script.js
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script.js
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const Gameboard = (() => {
let grid = document.querySelector(".grid");
let data = [];
let reset = () => data = [];
let set = (position, symbol) => data[position] = symbol;
let getSymbol = (position) => data[position];
let display = (...positions) => {
while (grid.firstChild) {
grid.removeChild(grid.firstChild);
}
for (let i = 0; i <= 8; ++i) {
let cell = document.createElement("div");
cell.id = i;
cell.textContent = !data[i] ? " " : data[i];
cell.addEventListener("click",
e => gameController.play(+e.target.id));
if (positions.includes(i)) {
cell.classList.add("highlight");
}
grid.appendChild(cell);
}
}
let getPossiblePositions = () => {
let result = [];
for (let i = 0; i <= 8; ++i) {
if (!data[i]) {
result.push(i);
}
}
return result;
}
return { reset, set, getSymbol, display, getPossiblePositions, };
})();
const Player = (name, symbol) => {
let move = (position) => {
if (position >= 0 && position <= 8 &&
!Gameboard.getSymbol(position)) {
Gameboard.set(position, symbol);
return true;
}
return false;
}
let win = () => {
if (
Gameboard.getSymbol(0) == symbol
&& Gameboard.getSymbol(1) == symbol
&& Gameboard.getSymbol(2) == symbol
)
return [0, 1, 2];
if (
Gameboard.getSymbol(3) == symbol
&& Gameboard.getSymbol(4) == symbol
&& Gameboard.getSymbol(5) == symbol
)
return [3, 4, 5];
if (
Gameboard.getSymbol(6) == symbol
&& Gameboard.getSymbol(7) == symbol
&& Gameboard.getSymbol(8) == symbol
)
return [6, 7, 8];
if (
Gameboard.getSymbol(0) == symbol
&& Gameboard.getSymbol(3) == symbol
&& Gameboard.getSymbol(6) == symbol
)
return [0, 3, 6];
if (
Gameboard.getSymbol(1) == symbol
&& Gameboard.getSymbol(4) == symbol
&& Gameboard.getSymbol(7) == symbol
)
return [1, 4, 7];
if (
Gameboard.getSymbol(2) == symbol
&& Gameboard.getSymbol(5) == symbol
&& Gameboard.getSymbol(8) == symbol
)
return [2, 5, 8];
if (
Gameboard.getSymbol(0) == symbol
&& Gameboard.getSymbol(4) == symbol
&& Gameboard.getSymbol(8) == symbol
)
return [0, 4, 8];
if (
Gameboard.getSymbol(2) == symbol
&& Gameboard.getSymbol(4) == symbol
&& Gameboard.getSymbol(6) == symbol
)
return [2, 4, 6];
return false;
}
return { name, symbol, move, win, };
};
const gameController = (() => {
let msg = document.querySelector("#msg");
let playing;
let turn;
let total;
let players = [Player("Player 1", "X"), Player("Player 2", "O")];
let setup = () => {
total = 0;
playing = true;
turn = Math.floor(Math.random()*2);
displayTurn();
Gameboard.reset();
Gameboard.display();
}
let play = (position) => {
if (!playing) {
setup();
return;
}
if (players[turn].move(position)) {
total++;
let win = players[turn].win();
if (!win) {
Gameboard.display();
if (total == 9) {
playing = false;
displayDraw();
} else {
turn = (turn == 0) ? 1 : 0;
displayTurn();
}
} else {
Gameboard.display(...win);
playing = false;
displayWinner();
}
}
}
let displayTurn = () => msg.textContent = `${players[turn].name}'s Turn`;
let displayWinner = () => msg.textContent = `${players[turn].name} Win!`;
let displayDraw = () => msg.textContent = "Draw";
return { setup, play, };
})();
gameController.setup();