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goMuku.html
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goMuku.html
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
<title>Five In A Row</title>
<link rel="stylesheet" href="assets/css/mainGame.css">
<meta name="author" content="Chioma Nwosu">
<meta name="viewport" content="width=device-width">
<meta charset="utf-8"/>
</head>
<body>
<h1>Welcome to Five In A Row</h1>
<p>The default for this game requires two persons.<br> Game by Chikaodinaka Nwosu</p>
<p id="results"></p>
<div>
<!-- <button onclick="playAI()">Play AI</button> -->
<button onclick="newGame()">Reset</button>
<br> <br>
<canvas id="canvas" width="1000" height="1000">Browser does not support HTML canvas.</canvas>
</div>
<script>
var canvas = document.getElementById("canvas");
var ctx = canvas.getContext("2d");
var bool, board, endGame, plays, twoPlays; //this marks wheter this position in the board has already been visited.
var endGame = true;
var switchFill = true;
newGame();
getRandom = () => {
let z = Math.floor(Math.random() * 951) + 50;
if (z < 50) {z = 50};
if (z > 950) {z = 950};
let remainder = z % 50;
z -= (remainder);
if (remainder > 25) {
z += 50;
}
return z;
}
function newGame() {
plays = 0;
twoPlays = true;
ctx.beginPath();
ctx.clearRect(0, 0, canvas.width, canvas.height);
bool = true;
board = new Array(19);
endGame = true;
ctx.globalCompositeOperation = 'destinationOver';
ctx.fillStyle = '#D2B48C';
ctx.fillRect(0, 0, canvas.width, canvas.height);
for (let i = 50; i < canvas.width; i+=50) {
ctx.beginPath();
ctx.moveTo(i, 50);
ctx.lineTo(i, 950);
ctx.stroke();
ctx.moveTo(50, i);
ctx.lineTo(950, i);
ctx.stroke();
}
for (let i = 0; i < 19; i++) {
board[i] = [false, false, false, false, false,
false, false, false, false, false,
false, false, false, false, false,
false, false, false, false];
}
}
let getPos = document.querySelector("canvas");
getPos.addEventListener("click", function(event)
{
let rect = canvas.getBoundingClientRect();
x = event.clientX - rect.left;
y = event.clientY - rect.top;
if (x < 50) {x = 50};
if (y < 50) {y = 50};
if (x > 950) {x = 950};
if (y > 950) {y = 950};
let remainder = x % 50;
x -= (remainder);
if (remainder > 25) {
x += 50;
}
remainder = y % 50;
y -= (remainder);
if (remainder > 25) {
y += 50;
}
if (twoPlays) {
if (bool && endGame) {
if (drawX(x, y)) {
bool = !bool;
}
} else if (endGame) {
if (drawO(x,y)) {
bool = !bool;
}
}
} else {
if (endGame && drawX(x, y)) {
if (plays < 2) {
prev = [getRandom(), getRandom()]
drawO(prev[0], prev[1]);
prev = [(prev[0]/50) - 1, (prev[1]/50) - 1];
} else {
checkPlays((x/50) - 1, (y/50) - 1);
}
}
}
});
function drawX(start, end) {
if (board[(end/50) - 1][(start/50) - 1] != false) {
return false;
} //check wheter this already has a value or not first
var currentCol = document.getElementById("canvas");
var ctx = currentCol.getContext("2d");
//start is upperx, end is uppery co-ords
ctx.beginPath();
ctx.arc(start, end, 22, 0, 2 * Math.PI);
ctx.fillStyle = "black";
if (!switchFill) {
ctx.fillStyle = "white";
}
ctx.fill();
ctx.stroke();
board[(end/50) - 1][(start/50) - 1] = 'x';
if (checkGame((start/50) - 1, (end/50) - 1)) {
printResult(ctx.fillStyle);
}
plays++;
if (plays == 361) {
printResult('draw');
}
return true;
}
function drawO(start, end){
if (board[(end/50) - 1][(start/50) - 1] != false) {
return false;
}
var currentCol = document.getElementById("canvas");
var ctx = currentCol.getContext("2d");
ctx.beginPath();
ctx.arc(start, end, 22, 0, 2 * Math.PI);
ctx.fillStyle = "white";
if (!switchFill) {
ctx.fillStyle = "black";
}
ctx.fill();
ctx.stroke();
board[(end/50) - 1][(start/50) - 1] = 'o';
if (checkGame((start/50) - 1, (end/50) - 1)) {
printResult(ctx.fillStyle);
}
plays++;
if (plays == 361) {
printResult('draw');
}
return true;
}
function printResult(color) {
let temp = color;
if (color == 'draw') {
document.getElementById("results").innerHTML = "Draw. No one won the game. Please reset the game.";
window.alert("Draw. No one won the game. Please reset the game.");
endGame = false;
return;
} else if (color == '#000000') {
temp = 'Black';
color = "<span style=\"font-weight:bold\">Black</span>";
if (twoPlays) {switchFill = true;}
} else {
temp = 'White';
color = "<span style=\"font-weight:bold; color:white\">White</span>";
if (twoPlays) {switchFill = false;}
}
document.getElementById("results").innerHTML = color + " won the game. Please reset the game.";
window.alert(temp + " won the game. Please reset the game.");
endGame = false;
}
function checkGame(x, y) {
if (count(board[y][x], y, x, 1, 0)[0] >= 5) { //check x dir
return true;
}
if (count(board[y][x], y, x, 0, 1)[0] >= 5) {//check y dir
return true;
}
if (count(board[y][x], y, x, 1, -1)[0] >= 5) {//check negative diag dir
return true;
}
if (count(board[y][x], y, x, 1, 1)[0] >= 5) { //check poitive diag dir
return true;
}
return false;
}
function count(player, row, col, directionX, directionY) {
let count = 1; //The current marker is equal to 1.
let currentRow, currentCol;
currentRow = row + directionX;
currentCol = col + directionY;
while (currentRow >= 0 && currentRow < 19 && currentCol >= 0 && currentCol < 19
&& board[currentRow][currentCol] == player) {
count++; //piece is here, so check next
currentRow += directionX;
currentCol += directionY;
}
let startR = currentRow - directionX;
let startC = currentCol - directionY;
currentRow = row - directionX;
currentCol = col - directionY;
while (currentRow >= 0 && currentRow < 19 && currentCol >= 0 && currentCol < 19
&& board[currentRow][currentCol] == player) {
count++; //check backwards
currentRow -= directionX;
currentCol -= directionY;
}
let endR = currentRow + directionX;
let endC = currentCol + directionY;
return [count, endR, endC, startR, startC];
}
var prev;
function playAI() {
newGame();
twoPlays = false;
}
function checkPlays(x, y) {
let xTemp, yTemp;
if (plays < 5) {
if (prev[0] == 18) {
prev[0] = prev[0] - 1;
} else if (prev[0] == 0) {
prev[0] = prev[0] + 1;
} else {
xTemp = Math.floor(Math.random() * 3) - 1;
prev[0] += xTemp;
}
if (prev[1] == 18) {
prev[1] = prev[1] - 1;
} else if (prev[1] == 18) {
prev[1] = prev[1] + 1;
} else {
yTemp = Math.floor(Math.random() * 3) - 1;
while (xTemp == yTemp && xTemp == 0 && yTemp == 0) {
yTemp = Math.floor(Math.random() * 3) - 1;
}
prev[1] += yTemp;
}
drawO((prev[0] + 1) * 50, (prev[1] + 1) * 50);
} else {
if (!stopOpponent(prev[0], prev[1], 4)) {
if (!stopOpponent(x, y, 3)) {
let occur = 2;
if (!stopOpponent(prev[0], prev[1], occur)) {
occur = 1;
stopOpponent(prev[0], prev[1], occur);
}
}
}
}
}
//stop oppenent
function stopOpponent(x, y, occurs) {
let position = count(board[y][x], y, x, 1, 0);
if (position[0] >= occurs) { // xxx dir
if (position[1] - 1 >= 0 && board[position[2]][position[1] - 1] == false) {
drawO((position[2] + 1) * 50, (position[1]) * 50); //if this is true, return true
//random top or bottom
return true;
} else if (position[3] + 1 < 19 && board[position[4]][position[3] + 1] == false) {
if (drawO((position[4] + 1) * 50, (position[3] + 2) * 50)) {
return true;
} else {
stopOpponent(prev[0], prev[1], 1);
}
}
}
position = count(board[y][x], y, x, 0, 1);
if (position[0] >= occurs) {//check y dir xxx
if (position[2] - 1 >= 0 && board[position[2] - 1][position[1]] == false) {
drawO((position[2]) * 50, (position[1] + 1) * 50);
return true;
} else if (position[4] + 1 < 19 && board[position[4] + 1][position[3]] == false) {
if (drawO((position[4] + 2) * 50, (position[3] + 1) * 50)) {
return true;
} else {
stopOpponent(prev[0], prev[1], 1);
}
}
}
position = count(board[y][x], y, x, 1, -1);
if (position[0] >= occurs) {//check negative diag dir
if (position[1] - 1 >= 0 && position[2] + 1 < 19
&& board[position[2] + 1][position[1] - 1] == false) {
drawO((position[2] + 2) * 50, (position[1]) * 50);
return true;
} else if (position[3] + 1 < 19 && position[4] - 1 >= 0
&& board[position[4] - 1][position[3] + 1] == false) {
if (drawO((position[4]) * 50, (position[3] + 2) * 50)) {
return true;
} else {
stopOpponent(prev[0], prev[1], 1);
}
}
}
position = count(board[y][x], y, x, 1, 1);
if (position[0] >= occurs) { //check poitive diag dir
if (position[1] - 1 >= 0 && position[2] - 1 >= 0
&& board[position[2] - 1][position[1] - 1] == false) {
drawO((position[2]) * 50, (position[1]) * 50);
return true;
} else if (position[3] + 1 < 19 && position[4] + 1 < 19
&& board[position[4] + 1][position[3] + 1] == false) {
if (drawO((position[4] + 2) * 50, (position[3] + 2) * 50)) {
return true;
} else {
stopOpponent(prev[0], prev[1], 1);
}
}
}
return false;
}
</script>
</body>
</html>