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index.html
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index.html
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<html>
<head>
<meta charset="UTF-8">
<title>Checkers Game</title>
<style>
.board-container {
display: flex;
justify-content: center;
align-items: center;
width:65%;
margin-right:2%;
float: left;
}
.board {
display: flex;
flex-wrap: wrap;
width: 90%;
max-width: 600px; /* Maximum width of the board */
max-height: 600px; /* Maximum height of the board */
margin: 0 auto; /* Centers the board */
padding: 10px; /* Adds padding around the board */
}
.square {
width: 50px;
height: 50px;
box-sizing: border-box;
display: flex;
justify-content: center;
align-items: center;
}
.smallsquare {
width: 20px;
height: 20px;
box-sizing: border-box;
display: flex;
justify-content: center;
align-items: center;
}
.light {
background-color: #eaeaea;
}
.dark {
background-color: gray;
}
.grid-row {
display: flex;
flex-direction: row;
width: 100%;
}
.movebox {
text-align: center;
width: 20%;
}
.container {
display: flex;
justify-content: space-between;
align-items: center;
}
.left-box {
flex-basis: 70%;
padding: 10px;
}
.right-box {
width: 100%;
background-color: #b4b4b4;
padding: 10px;
margin-right: 20px;
}
.selected {
background-color: rgb(158, 0, 0);
}
.rightside {
width:40%;
float: right;
}
.leftside {
display: flex;
align-items: flex-start;
justify-content: center;
width:55%;
float: left;
}
.whiteMoves {
float: left;
width: 40%;
}
.blackMoves {
float: right;
width: 40%;
}
.turnNumber {
font-weight: bold;
float: left;
width: 10%;
}
.whitemove {
background-color: rgb(252, 213, 172);
border: 1px black solid;
}
.blackmove {
background-color: rgb(44, 44, 44);
color: white;
border: 1px rgb(252, 213, 172) solid;
}
.gameOver {
padding: 10px;
display: block;
clear: both;
max-width: 140px;
}
.dot {
position: relative;
}
.dot::before {
content: "";
display: block;
width: 10px;
height: 10px;
border-radius: 50%;
background-color: white;
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
}
</style>
</head>
<body>
<div class="container" id="container">
<div class="left-box">
<div class="board" id="boardContainer">
<div id="board"></div>
</div>
</div>
<div class="right-box movebox" id="rightbox">
<label style="color:black;">New game:</label><br/>
<button id="startWhite">White</button> <button id="startBlack">Black</button> <button id="puzzle">Puzzle</button>
<br/>
Evaluation: <label id="eval"></label> Evaluated Nodes [This Move]: <label id="nodes"></label> [<label id="nodesThisMove"></label>]<br/>
<div class="leftside" style="height: 320px; overflow: auto;">
<div class="turnNumber" id="turnNumber"></div>
<div class="whiteMoves" id="whiteMoves"></div>
<div class="blackMoves" id="blackMoves"></div>
</div>
<div class="rightside">
<div id="demoBoard"></div><br/>
<div id="gameover" class="gameover"></div>
</div>
</div>
</div>
<!--<button onclick="setupBoard()">PuzzleBoard</button>-->
<button onclick="saveAsPNG('board')">Save as PNG</button>
<script src="https://html2canvas.hertzen.com/dist/html2canvas.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/axios/1.2.1/axios.min.js"></script>
<script>
function saveAsPNG(id) {
// Get the div element
var div = document.getElementById(id);
console.log(div)
// Use HTML2Canvas to convert the contents of the div to an image
html2canvas(div).then(function(canvas) {
// Get the PNG image data URL
var imageData = canvas.toDataURL("image/png");
// Create a new anchor element to download the image
var downloadLink = document.createElement("a");
downloadLink.href = imageData;
downloadLink.download = "image.png";
// Trigger a click event on the anchor element to download the image
downloadLink.click();
});
}
const boardContainer = document.getElementById("board");
const demoBoard = document.getElementById("demoBoard");
const whiteMovebox = document.getElementById("whiteMoves");
const blackMovebox = document.getElementById("blackMoves");
const turnNumber = document.getElementById("turnNumber");
var gameoverbox = document.getElementById("gameover");
var evaluation = document.getElementById("eval")
var evaluatedNodes = document.getElementById("nodes")
var evaluatedNodesThisMove = document.getElementById("nodesThisMove")
evaluation.innerHTML = '0'
evaluatedNodes.innerHTML = '0'
evaluatedNodesThisMove.innerHTML = '0'
var turnIndex = 0;
const gridSquares = [];
var imgSrc = "./images/";
var gameData;
var gameover = false;
const whitePieceSrc = imgSrc + "white_piece.png";
const blackPieceSrc = imgSrc + "black_piece.png";
const whiteKingSrc = imgSrc + "white_king.png";
const blackKingSrc = imgSrc + "black_king.png";
function getData() {
axios.get('/data')
.then(response => {
gameData = response.data;
console.log(gameData);
})
.catch(error => {
console.error(error);
});
}
getData();
// Create an 8x8 grid
for (let i = 0; i < 8; i++) {
const row = document.createElement("div");
row.classList.add("grid-row");
for (let j = 0; j < 8; j++) {
const square = document.createElement("div");
square.classList.add("square");
if ((i + j) % 2 === 0) {
square.classList.add("light");
} else {
square.classList.add("dark");
}
square.id = String(squareIndexToBitIndex(gridSquares.length));
row.appendChild(square);
gridSquares.push(square);
}
boardContainer.appendChild(row);
}
for (let i = 0; i < 8; i++) {
const row = document.createElement("div");
row.classList.add("grid-row");
for (let j = 0; j < 8; j++) {
const square = document.createElement("div");
square.classList.add("smallsquare");
if ((i + j) % 2 === 0) {
square.classList.add("light");
} else {
square.classList.add("dark");
}
square.innerHTML = String(squareIndexToWCDFIndex(i*8 + j));
row.appendChild(square);
}
demoBoard.appendChild(row);
}
function setupBoard() {
console.log("setupBoard")
axios.get('/setBoard')
.then(response => {
const data = response.data;
console.log(data)
const whiteMen = data.whiteMen;
const blackMen = data.blackMen;
const whiteKings = data.whiteKings;
const blackKings = data.blackKings;
setBoard(whiteMen, blackMen, whiteKings, blackKings);
})
.catch(error => {
console.error(error);
});
}
// Set the icon for a square
function setIcon(bitIndex, colour) {
let index = this.bitIndexToSquareIndex(bitIndex);
let iconSrc = colour.length == 1
? colour == "w" ? whitePieceSrc : blackPieceSrc
: colour == "wk" ? whiteKingSrc : blackKingSrc;
if (colour.length !== 1) {
console.log(colour, iconSrc)
}
const square = gridSquares[index];
const icon = document.createElement("img");
icon.src = iconSrc;
icon.alt = colour;
icon.style.width = "90%";
icon.style.height = "90%";
square.innerHTML = "";
square.appendChild(icon);
}
// Remove the icon from a square
function removeIcon(bitIndex) {
let index = this.bitIndexToSquareIndex(bitIndex);
const square = gridSquares[index];
square.innerHTML = "";
}
function squareIndexToWCDFIndex(index) {
if (Math.floor(index/8) % 2 == 0) {
return index % 2 == 1 ? Math.floor((index)/ 2) + 1 : '';
} else {
return index % 2 == 0 ? Math.floor((index)/ 2) + 1: '';
}
}
function squareIndexToBitIndex(index) {
if (Math.floor(index/8) % 2 == 0) {
return index % 2 == 1 ? Math.floor((63-(index))/ 2) : '';
} else {
return index % 2 == 0 ? Math.floor((63-(index))/ 2) : '';
}
}
function bitIndexToSquareIndex(index) {
return Math.floor(index/4) % 2 == 0 ? 62-(index * 2) : 64-(index * 2) - 1;
}
function bitIndexToDisplayIndex(index) {
return (Math.floor(index / 4) * 4) + (3 - index % 4)
}
function showSquareIndexes() {
for (let i = 0; i < 64; i++) {
let index = squareIndexToBitIndex(i);
if (index !== '') {
gridSquares[i].innerHTML = bitIndexToDisplayIndex(index)
}
}
}
function addMove(move, colour) {
let box;
let c;
if (colour == "w") {
box = whiteMovebox;
c = "whitemove";
turnIndex++;
let turn = document.createElement("div");
turn.innerHTML = turnIndex + '. ';
turn.style.border = "1px solid black";
turnNumber.appendChild(turn);
} else {
box = blackMovebox;
c = "blackmove";
}
let newmove = document.createElement("div");
newmove.classList.add(c);
newmove.innerHTML = move;
box.appendChild(newmove)
}
const rightbox = document.getElementById('rightbox');
function setSize() {
rightbox.style.height = `380px`;
}
setSize();
window.addEventListener('resize', setSize);
function clearMoveboxes() {
whiteMovebox.innerHTML = '';
blackMovebox.innerHTML = '';
turnNumber.innerHTML = '';
turnIndex = 0;
}
function setBoard(whiteMen = [], blackMen = [], whiteKings = [], blackKings = []) {
for (let i = 0; i < 64; i++) {
gridSquares[i].innerHTML = "";
}
for (let i = 0; i < whiteMen.length; i++) {
setIcon(whiteMen[i], "w");
}
for (let i = 0; i < blackMen.length; i++) {
setIcon(blackMen[i], "b");
}
for (let i = 0; i < whiteKings.length; i++) {
console.log("setting white king", whiteKings[i])
setIcon(whiteKings[i], "wk");
}
for (let i = 0; i < blackKings.length; i++) {
console.log("setting black king", blackKings[i])
setIcon(blackKings[i], "bk");
}
}
function addDots(squares) {
for (let i = 0; i < squares.length; i++) {
let square = document.getElementById(squares[i]);
square.classList.add("dot");
}
}
function clearDots() {
const elements = document.querySelectorAll('.dot');
elements.forEach(element => {
element.classList.remove('dot');
});
}
axios.get('/reset')
.then(response => {
const data = response.data;
const whiteMen = data.whiteMen;
const blackMen = data.blackMen;
const whiteKings = data.whiteKing;
const blackKings = data.blackKing;
setBoard(whiteMen, blackMen, whiteKings, blackKings);
})
.catch(error => {
console.error(error);
});
document.getElementById("startWhite").addEventListener('click', () => {
gameover = false;
gameoverbox.innerHTML = "";
if (selectedPiece) document.getElementById(selectedPiece).classList.remove("selected");
selectedPiece = null;
clearDots();
axios.get('/reset')
.then(response => {
const data = response.data;
const whiteMen = data.whiteMen;
const blackMen = data.blackMen;
const whiteKings = data.whiteKing;
const blackKings = data.blackKing;
setBoard(whiteMen, blackMen, whiteKings, blackKings);
clearMoveboxes();
})
.catch(error => {
console.error(error);
});
axios.post('/start', { start: "w" })
.then((response) => {
console.log(response.data);
getData();
})
.catch((error) => {
console.error(error);
});
});
document.getElementById("startBlack").addEventListener('click', () => {
gameover = false;
gameoverbox.innerHTML = "";
if (selectedPiece) document.getElementById(selectedPiece).classList.remove("selected");
selectedPiece = null;
clearDots();
axios.get('/reset')
.then(response => {
const data = response.data;
const whiteMen = data.whiteMen;
const blackMen = data.blackMen;
const whiteKings = data.whiteKing;
const blackKings = data.blackKing;
setBoard(whiteMen, blackMen, whiteKings, blackKings);
clearMoveboxes();
})
.catch(error => {
console.error(error);
});
axios.post('/start', { start: "b" })
.then((response) => {
console.log(response.data);
getData();
})
.catch((error) => {
console.error(error);
});
axios.get('/aimove')
.then(response => {
const data = response.data;
console.log(data)
const whiteMen = data.white;
const blackMen = data.black;
const whiteKings = data.whiteKing;
const blackKings = data.blackKing;
const moveString = data.moveString;
const thisEval = data.evaluation;
const nodeCount = data.evaluatedNodes;
const thisNodeCount = data.evaluatedNodesThisMove;
if (thisEval !== "nan") evaluation.innerHTML = thisEval
evaluatedNodes.innerHTML = nodeCount
evaluatedNodesThisMove.innerHTML = thisNodeCount
const colour = gameData.playAs == 'w' ? 'b' : 'w';
addMove(moveString, colour);
setBoard(whiteMen, blackMen, whiteKings, blackKings);
}).catch(error => {
console.error(error);
});
});
document.getElementById("puzzle").addEventListener('click', () => {
gameover = false;
gameoverbox.innerHTML = "";
if (selectedPiece) document.getElementById(selectedPiece).classList.remove("selected");
selectedPiece = null;
clearDots();
axios.get('/reset')
.then(response => {
const data = response.data;
const whiteMen = data.whiteMen;
const blackMen = data.blackMen;
const whiteKings = data.whiteKing;
const blackKings = data.blackKing;
setBoard(whiteMen, blackMen, whiteKings, blackKings);
clearMoveboxes();
})
.catch(error => {
console.error(error);
});
axios.get('/puzzle')
.then((response) => {
console.log('puzzle data', response.data);
getData();
console.log(gameData)
})
.catch((error) => {
console.error(error);
});
axios.get('/aimove')
.then(response => {
const data = response.data;
console.log(data)
const whiteMen = data.white;
const blackMen = data.black;
const whiteKings = data.whiteKing;
const blackKings = data.blackKing;
const moveString = data.moveString;
const thisEval = data.evaluation;
const nodeCount = data.evaluatedNodes;
const thisNodeCount = data.evaluatedNodesThisMove;
if (thisEval !== "nan") evaluation.innerHTML = thisEval
evaluatedNodes.innerHTML = nodeCount
evaluatedNodesThisMove.innerHTML = thisNodeCount
const colour = gameData.playAs == 'w' ? 'b' : 'w';
addMove(moveString, colour);
setBoard(whiteMen, blackMen, whiteKings, blackKings);
}).catch(error => {
console.error(error);
});
});
var selectedPiece = null;
gridSquares.forEach((pieceElement) => {
pieceElement.addEventListener('click', () => {
// Get the id of the clicked element
const pieceId = pieceElement.id;
if (selectedPiece == null) {
if (validateSelection(pieceId)) {
axios.post('/select_piece', { start: pieceId })
.then((response) => {
console.log(response.data);
if (response.data !== false) {
selectedPiece = pieceId;
pieceElement.classList.add("selected");
addDots(response.data)
}
}).catch((error) => {
console.error(error);
});
}
} else {
if (selectedPiece == pieceId) {
selectedPiece = null;
pieceElement.classList.remove("selected");
clearDots();
} else {
validateMove(selectedPiece, pieceId)
.then((isValid) => {
if (isValid) {
axios.post('/play', { start: selectedPiece, end: pieceId })
.then(response => {
const data = response.data;
console.log(data)
const whiteMen = data.white;
const blackMen = data.black;
const whiteKings = data.whiteKing;
const blackKings = data.blackKing;
const moveString = data.moveString;
const status = data.status;
const colour = gameData.playAs;
addMove(moveString, colour);
setBoard(whiteMen, blackMen, whiteKings, blackKings);
if (status == 0) {
axios.get('/aimove')
.then(response => {
const data = response.data;
console.log(data)
const whiteMen = data.white;
const blackMen = data.black;
const whiteKings = data.whiteKing;
const blackKings = data.blackKing;
const moveString = data.moveString;
const thisEval = data.evaluation;
const nodeCount = data.evaluatedNodes;
const thisNodeCount = data.evaluatedNodesThisMove;
if (thisEval !== "nan") evaluation.innerHTML = thisEval
evaluatedNodes.innerHTML = nodeCount
evaluatedNodesThisMove.innerHTML = thisNodeCount
const colour = gameData.playAs == 'w' ? 'b' : 'w';
addMove(moveString, colour);
setBoard(whiteMen, blackMen, whiteKings, blackKings);
}).catch(error => {
console.error(error);
});
} else {
gameover = true;
switch(status) {
case 1:
gameoverbox.innerHTML = "<b>GAME OVER<br/>WHITE WINS<b>";
gameoverbox.style.backgroundColor = "white";
gameoverbox.style.color = "black";
break;
case 2:
gameoverbox.innerHTML = "<b>GAME OVER<br/>BLACK WINS<b>";
gameoverbox.style.backgroundColor = "black";
gameoverbox.style.color = "white";
break;
case 3:
document.getElementById("gameover").innerHTML = "<b>GAME OVER<br/>DRAW<b>";
break;
}
}
}).catch(error => {
console.error(error);
});
document.getElementById(selectedPiece).classList.remove("selected");
selectedPiece = null;
clearDots();
} else {
document.getElementById(selectedPiece).classList.remove("selected");
selectedPiece = null;
clearDots();
if (validateSelection(pieceId)) {
axios.post('/select_piece', { start: pieceId })
.then((response) => {
console.log(response.data);
if (response.data !== false) {
selectedPiece = pieceId;
pieceElement.classList.add("selected");
addDots(response.data)
}
}).catch((error) => {
console.error(error);
});
}
}
});
}
}
});
});
function validateMove(start, end) {
if (!validateSelection(start)) {
return Promise.resolve(false);
}
if (start == end) {
return Promise.resolve(false);
}
return axios.post('/check_move', { start: start, end: end })
.then((response) => {
return response.data == true;
})
.catch((error) => {
console.error(error);
return false;
});
}
function validateSelection(id) {
console.log(document.getElementById(id));
if (gameover) return false;
const colour = gameData.playAs;
if (document.getElementById(id)) {
if (document.getElementById(id).childNodes.length > 0) {
if (document.getElementById(id).firstChild.alt[0] == colour) {
return true;
}
}
}
return false;
}
/*
* Bitwise Board
* ----------------
* 31 30 29 28
* 27 26 25 24
* 23 22 21 20
* 19 18 17 16
* 15 14 13 12
* 11 10 09 08
* 07 06 05 04
* 03 02 01 00
* ----------------
*
*
* WCDF Board
* ----------------
* 01 02 03 04
* 05 06 07 08
* 09 10 11 12
* 13 14 15 16
* 17 18 19 20
* 21 22 23 24
* 25 26 27 28
* 29 30 31 32
* ----------------
*
*/
</script>
</body>
</html>