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pathfinding.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<meta content="width=device-width, initial-scale=1.0" name="viewport" />
<title>Pathfinding - AlgoVis.io</title>
<meta
content="AlgoVis is an online algorithm visualization tool."
name="description"
/>
<meta content="algorithm visualization tool online" name="keywords" />
<!-- Favicons -->
<link href="assets/img/favicon.png" rel="icon" />
<link href="assets/img/apple-touch-icon.png" rel="apple-touch-icon" />
<!-- Google Fonts -->
<link
href="https://fonts.googleapis.com/css?family=Open+Sans:300,300i,400,400i,600,600i,700,700i|Raleway:300,300i,400,400i,500,500i,600,600i,700,700i|Poppins:300,300i,400,400i,500,500i,600,600i,700,700i"
rel="stylesheet"
/>
<!-- Vendor CSS Files -->
<link
href="assets/vendor/bootstrap/css/bootstrap.min.css"
rel="stylesheet"
/>
<link href="assets/vendor/icofont/icofont.min.css" rel="stylesheet" />
<link href="assets/vendor/boxicons/css/boxicons.min.css" rel="stylesheet" />
<link href="assets/vendor/venobox/venobox.css" rel="stylesheet" />
<link
href="assets/vendor/owl.carousel/assets/owl.carousel.min.css"
rel="stylesheet"
/>
<link href="assets/vendor/aos/aos.css" rel="stylesheet" />
<link rel="stylesheet" href="assets/css/main.css" />
<link
rel="stylesheet"
href="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-slider/11.0.2/css/bootstrap-slider.min.css"
/>
<!-- Template Main CSS File -->
<link href="assets/css/style.css" rel="stylesheet" />
</head>
<body>
<!-- ======= Top Bar ======= -->
<div
id="topbar"
class="d-none d-lg-flex align-items-center fixed-top header-inner-pages"
>
<div class="container d-flex">
<div class="contact-info mr-auto">
<i class="icofont-envelope"></i>
<a href="mailto:[email protected]">[email protected]</a>
</div>
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<a href="https://twitter.com/tobiasnoethlich" class="twitter"
><i class="icofont-twitter"></i
></a>
<a href="https://github.com/tobinatore" class="github"
><i class="icofont-github"></i
></a>
<a
href="https://www.xing.com/profile/Tobias_Noethlich/cv"
class="xing"
><i class="icofont-xing"></i
></a>
<a
href="https://www.linkedin.com/in/tobias-noethlich/"
class="linkedin"
><i class="icofont-linkedin"></i
></a>
</div>
</div>
</div>
<!-- ======= Header ======= -->
<header id="header" class="fixed-top header-inner-pages">
<div class="container-fluid d-flex align-items-center">
<a class="btn back-button mr-4" href="graphs.html"
><i class="bx bx-arrow-back white-text" aria-hidden="true"></i>
Back</a
>
<h1 class="logo mr-auto"><a href="index.html">Algovis.io</a></h1>
<!-- Uncomment below if you prefer to use an image logo -->
<!-- <a href="index.html" class="logo mr-auto"><img src="assets/img/logo.png" alt="" class="img-fluid"></a>-->
<nav class="nav-menu d-none d-lg-block">
<ul>
<li><a href="index.html">Home</a></li>
</ul>
</nav>
<!-- .nav-menu -->
</div>
</header>
<!-- End Header -->
<main id="main">
<!-- ======= Breadcrumbs ======= -->
<section id="breadcrumbs" class="breadcrumbs">
<div class="container">
<ol>
<li><a href="index.html">Home</a></li>
<li>Pathfinding</li>
<li class="algo"></li>
</ol>
<h2><span class="algo">Pathfinding</span> visualization</h2>
</div>
</section>
<!-- End Breadcrumbs -->
<section class="inner-page pt-2">
<div class="container-fluid">
<div class="mb-2">
<div class="row mx-auto">
<div class="dropdown">
<button
class="btn btn-dark dropdown-toggle mr-3"
type="button"
id="dropdownAlgo"
data-toggle="dropdown"
aria-haspopup="true"
aria-expanded="false"
>
Select an Algorithm
</button>
<div class="dropdown-menu" aria-labelledby="dropdownAlgo">
<button
class="dropdown-item"
onclick="setAlgo(1)"
type="button"
>
A*
</button>
<button
class="dropdown-item"
onclick="setAlgo(2)"
type="button"
>
BFS
</button>
<button
class="dropdown-item"
onclick="setAlgo(3)"
type="button"
>
DFS
</button>
<button
class="dropdown-item"
onclick="setAlgo(4)"
type="button"
>
Dijkstra's algorithm
</button>
</div>
</div>
<div class="dropdown">
<button
class="btn btn-dark dropdown-toggle mr-3"
type="button"
id="dropdownGen"
data-toggle="dropdown"
aria-haspopup="true"
aria-expanded="false"
>
Generate Maze
</button>
<div class="dropdown-menu" aria-labelledby="dropdownGen">
<button class="dropdown-item" type="button">
Recursively
</button>
<button class="dropdown-item" type="button">BFS</button>
<button class="dropdown-item" type="button">DFS</button>
<button class="dropdown-item" type="button">Dijkstra</button>
</div>
<button
class="btn btn-danger red mr-3"
type="button"
id="startPf"
onclick="runAlgo()"
>
Visualize Algorithm
</button>
</div>
<span
class="red-text pt-2 pl-1 pr-3"
id="algowarning"
hidden
style="font-size: large; font-weight: bold"
>
Please select an algorithm first.
</span>
<button class="btn btn-dark" onclick="clearGrid()">
Clear grid
</button>
</div>
</div>
<div id="grid"></div>
</div>
</section>
</main>
<!-- ======= Footer ======= -->
<footer id="footer">
<div class="footer-top">
<div class="container">
<div class="row">
<div class="col-lg-4 col-md-6">
<div class="footer-info">
<h3>AlgoVis.io</h3>
<strong>Email:</strong> [email protected]<br />
<div class="social-links mt-3">
<a href="https://twitter.com/tobiasnoethlich" class="twitter"
><i class="icofont-twitter"></i
></a>
<a href="https://github.com/tobinatore" class="github"
><i class="icofont-github"></i
></a>
<a
href="https://www.xing.com/profile/Tobias_Noethlich/cv"
class="xing"
><i class="icofont-xing"></i
></a>
<a
href="https://www.linkedin.com/in/tobias-noethlich/"
class="linkedin"
><i class="icofont-linkedin"></i
></a>
</div>
</div>
</div>
<div class="col-lg-2 col-md-6 footer-links"></div>
<div class="col-lg-2 col-md-6 footer-links">
<h4>Useful Links</h4>
<ul>
<li>
<i class="bx bx-chevron-right"></i>
<a href="index.html">Home</a>
</li>
<li>
<i class="bx bx-chevron-right"></i>
<a href="index.html#about">About us</a>
</li>
<li>
<i class="bx bx-chevron-right"></i>
<a href="index.html#categories">Categories</a>
</li>
<li>
<i class="bx bx-chevron-right"></i>
<a href="#">Terms of service</a>
</li>
<li>
<i class="bx bx-chevron-right"></i>
<a href="#">Privacy policy</a>
</li>
</ul>
</div>
</div>
</div>
</div>
<div class="container">
<div class="copyright">
© Copyright <strong><span>AlgoVis.io</span></strong
>. All Rights Reserved
</div>
<div class="credits">
<!-- All the links in the footer should remain intact. -->
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<!-- Licensing information: https://bootstrapmade.com/license/ -->
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Designed by <a href="https://bootstrapmade.com/">BootstrapMade</a>
</div>
</div>
</footer>
<!-- End Footer -->
<a href="#" class="back-to-top"><i class="icofont-simple-up"></i></a>
<div id="preloader"></div>
<!-- Vendor JS Files -->
<script src="assets/vendor/jquery/jquery.min.js"></script>
<script src="assets/vendor/bootstrap/js/bootstrap.bundle.min.js"></script>
<script src="assets/vendor/jquery.easing/jquery.easing.min.js"></script>
<script src="assets/vendor/php-email-form/validate.js"></script>
<script src="assets/vendor/isotope-layout/isotope.pkgd.min.js"></script>
<script src="assets/vendor/venobox/venobox.min.js"></script>
<script src="assets/vendor/owl.carousel/owl.carousel.min.js"></script>
<script src="assets/vendor/aos/aos.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-slider/11.0.2/bootstrap-slider.min.js"></script>
<script src="https://d3js.org/d3.v5.js"></script>
<script src="assets/js/graph.js"></script>
<script src="assets/js/pathfinding.js"></script>
<!-- Template Main JS File -->
<script src="assets/js/main.js"></script>
<script>
var mouseDown = false;
var algo = 0;
var gridArr = [];
var startPos = { x: 0, y: 0 };
var endPos = { x: 0, y: 0 };
$(document)
.mousedown(function (e) {
mouseDown = true;
})
.mouseup(function (e) {
mouseDown = false;
})
.mouseleave(function (e) {
mouseDown = false;
});
function setAlgo(algorithm) {
switch (algorithm) {
case 1:
$("#dropdownAlgo").text("A*");
$("#startPf").text("Visualize A*");
$(".algo").html("A* algorithm");
document.title = "A* - AlgoVis.io";
$("#algowarning").prop("hidden", true);
algo = 1;
break;
case 2:
$("#dropdownAlgo").text("BFS");
$("#startPf").text("Visualize BFS");
$(".algo").html("Breadth-first search");
document.title = "Breadth-first search - AlgoVis.io";
$("#algowarning").prop("hidden", true);
algo = 2;
break;
case 3:
$("#dropdownAlgo").text("DFS");
$("#startPf").text("Visualize DFS");
$(".algo").html("Depth-first search");
document.title = "Depth-first search - AlgoVis.io";
$("#algowarning").prop("hidden", true);
algo = 3;
break;
case 4:
$("#dropdownAlgo").text("Dijkstra's algorithm");
$("#startPf").text("Visualize Dijkstra's algorithm");
$(".algo").html("Dijkstra's algorithm");
document.title = "Dijkstra's algorithm - AlgoVis.io";
$("#algowarning").prop("hidden", true);
algo = new Dijkstras();
break;
default:
$("#dropdownAlgo").text("A*");
$("#startPf").text("Visualize A*");
$(".algo").html("A* algorithm");
document.title = "A* - AlgoVis.io";
$("#algowarning").prop("hidden", true);
algo = 1;
break;
}
}
function gridData() {
var data = new Array();
var xpos = 1; // starting at (1,1) so the stroke gets rendered
var ypos = 1;
var width = 25;
var height = 25;
var click = 0;
var screenWidth = globalThis.screen.availWidth;
var screenHeight = globalThis.screen.availHeight;
var rows = Math.floor(globalThis.screen.availHeight / height) - 4;
var cols = Math.floor(globalThis.screen.availWidth / width) - 1;
for (var row = 0; row < rows; row++) {
data.push(new Array());
gridArr.push(new Array());
for (var column = 0; column < cols; column++) {
data[row].push({
x: xpos,
y: ypos,
width: width,
height: height,
click: click,
row: row,
col: column,
dist: Infinity,
predecessor: undefined,
type: "floor",
anim: false,
});
gridArr[row].push(1);
xpos += width;
}
xpos = 1;
ypos += height;
}
return data;
}
function getNearestMultiple(input, x) {
var out = Math.round(input / x);
return out == 0 && input > 0 ? (out + 1) * x : out * x;
}
function clamp(number, min, max) {
return Math.max(min, Math.min(number, max));
}
function dragged(d) {
var x = d3.event.x;
var y = d3.event.y;
var gridX = clamp(
getNearestMultiple(x, 25) + 1,
0,
(gridArr[0].length - 1) * 25
);
var gridY = clamp(
getNearestMultiple(y, 25) + 1,
0,
(gridArr.length - 1) * 25
);
if (d == "start") {
var newX = Math.round((gridX - 1) / 25);
var newY = Math.round((gridY - 1) / 25);
if (newX != endPos.x || newY != endPos.y) {
startPos.x = newX;
startPos.y = newY;
d3.select(this).attr("x", gridX).attr("y", gridY);
}
} else {
var newX = Math.round((gridX - 1) / 25);
var newY = Math.round((gridY - 1) / 25);
if (newX != startPos.x || newY != startPos.y) {
endPos.x = Math.round((gridX - 1) / 25);
endPos.y = Math.round((gridY - 1) / 25);
d3.select(this).attr("x", gridX).attr("y", gridY);
}
}
}
var gridData = gridData();
console.log(gridData);
console.log(grid);
var drag = d3
.drag()
.subject(function () {
var t = d3.select(this);
return { x: t.attr("x"), y: t.attr("y") };
})
.on("drag", dragged);
var grid = d3
.select("#grid")
.append("svg")
.attr("width", globalThis.screen.availWidth)
.attr("height", globalThis.screen.availHeight);
var row = grid
.selectAll(".row")
.data(gridData)
.enter()
.append("g")
.attr("id", function (d, i) {
return "row" + i;
});
var column = row
.selectAll(".square")
.data(function (d) {
return d;
})
.enter()
.append("rect")
.attr("class", "square")
.attr("id", function (d, i) {
return "node-" + d.row + "-" + d.col;
})
.attr("x", function (d) {
return d.x;
})
.attr("y", function (d) {
return d.y;
})
.attr("width", function (d) {
return d.width;
})
.attr("height", function (d) {
return d.height;
})
.attr("fill", "#fff")
.attr("stroke", "#222")
.on("mousedown", async function (d) {
var coords = this.id.replace(/^\D+/g, "").split("-");
var col = coords[1];
var row = coords[0];
mouseDown = true;
if (
(col != startPos.x || row != startPos.y) &&
(col != endPos.x || row != endPos.y)
) {
d.click++;
if (d.click % 2 == 0) {
d3.select(this).transition().duration(400).attr("fill", "#fff");
d.type = "floor";
}
if (d.click % 2 == 1) {
d.anim = true;
d3.select(this)
.attr("x", d.x + 12.5)
.attr("y", d.y + 12.5)
.attr("height", 0)
.attr("width", 0)
.attr("fill", "#171717")
.transition()
.duration(150)
.attr("x", d.x)
.attr("y", d.y)
.attr("height", 25)
.attr("width", 25);
await timeout(155);
d.anim = false;
d.type = "wall";
console.log(gridData);
}
}
})
.on("dblclick", function (d) {
var coords = this.id.replace(/^\D+/g, "").split("-");
var col = coords[1];
var row = coords[0];
if (
(col != startPos.x || row != startPos.y) &&
(col != endPos.x || row != endPos.y)
) {
d.click = 1;
d3.select(this).transition().duration(400).attr("fill", "#B0B0B0");
d.type = "weight";
}
})
.on("mouseenter", async function (d) {
var coords = this.id.replace(/^\D+/g, "").split("-");
var col = coords[1];
var row = coords[0];
if (
(col != startPos.x || row != startPos.y) &&
(col != endPos.x || row != endPos.y)
) {
if (mouseDown && !d.anim) {
d.click++;
if (d.click % 2 == 0) {
d3.select(this).transition().duration(400).attr("fill", "#fff");
d.type = "floor";
console.log("yeet");
}
if (d.click % 2 == 1) {
d.anim = true;
await colorBlock("#" + this.id, "#171717", 150, "fill");
setTimeout(() => {
d.anim = false;
}, 300);
d.type = "wall";
}
}
}
});
var start = grid
.selectAll(".start")
.data(["start"])
.enter()
.append("image")
.attr("xlink:href", "assets/img/start.svg")
.attr("id", "start")
.attr("x", function () {
var col = Math.round(Math.random() * (gridArr[0].length - 1));
startPos.x = col;
return 25 * col;
})
.attr("y", function () {
var row = Math.round(Math.random() * (gridArr.length - 1));
startPos.y = row;
console.log("startPos: " + startPos.x + ", " + startPos.y);
return 25 * row;
})
.attr("width", 25)
.attr("height", 25)
.call(drag);
var end = grid
.selectAll(".start")
.data(["end"])
.enter()
.append("image")
.attr("id", "end")
.attr("xlink:href", "assets/img/end.svg")
.attr("x", function () {
var col = Math.round(Math.random() * (gridArr[0].length - 1));
endPos.x = col;
return 25 * col;
})
.attr("y", function () {
var row = Math.round(Math.random() * (gridArr.length - 1));
endPos.y = row;
console.log("endPos: " + endPos.x + ", " + endPos.y);
return 25 * row;
})
.attr("width", 25)
.attr("height", 25)
.call(drag);
async function timeout(delay) {
await new Promise((resolve) =>
setTimeout(() => {
resolve();
}, delay)
);
}
async function colorBlock(block, color, delay, mode) {
return new Promise((resolve) => {
if (mode == "fill") {
var coords = block.replace(/^\D+/g, "").split("-");
var col = coords[1];
var row = coords[0];
d3.select(block)
.attr("x", gridData[row][col].x + 12.5)
.attr("y", gridData[row][col].y + 12.5)
.attr("height", 0)
.attr("width", 0)
.attr("fill", color)
.transition()
.duration(delay)
.attr("x", gridData[row][col].x)
.attr("y", gridData[row][col].y)
.attr("height", 25)
.attr("width", 25);
} else {
d3.select(block).transition().duration(delay).attr("fill", color);
}
setTimeout(() => {
resolve();
}, 30);
}, 30);
}
async function runAlgo() {
if (algo != 0) {
$("#algowarning").prop("hidden", true);
await algo.run(gridData, startPos, endPos);
} else {
$("#algowarning").prop("hidden", false);
}
}
function clearGrid() {
d3.selectAll(".square").transition().duration(500).attr("fill", "#fff");
for (let y = 0; y < gridData.length; y++) {
for (let x = 0; x < gridData[0].length; x++) {
gridData[y][x].type = "floor";
}
}
}
</script>
</body>
</html>