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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<link rel="stylesheet" href="/index.css">
<title>Physics for Games</title>
<link rel="shortcut icon" href="/favicon/favicon.ico" type="image/x-icon">
<meta name="description" content="A place to learn all about real-time physics simulations through descriptions, code snippets, and example programs all written in C++ and OpenGL.">
<meta name="og:description" content="A place to learn all about real-time physics simulations through descriptions, code snippets, and example programs all written in C++ and OpenGL.">
</head>
<body>
<header>
<h1><a title="physicsforgames.com" href="/">Physics for Games</a></h1>
</header>
<main>
<nav>
<ul class="outer-tree">
<li><a href="/">Introduction</a></li>
<li>
<span>🏀<span>2D</span></span>
<ul class="inner-tree">
<li><label>Rigidbody</label></li>
<li><a title="/2d/rigidbody/rigidbody_1.html" href="/2d/rigidbody/rigidbody_1.html">Linear Forces</a></li>
<li><a title="/2d/rigidbody/rigidbody_2.html" href="/2d/rigidbody/rigidbody_2.html">Rotational Forces</a></li>
<li><a title="/2d/rigidbody/rigidbody_3.html" href="/2d/rigidbody/rigidbody_3.html">Collisions</a></li>
<li><label>Collisions</label></li>
<li><a title="/2d/_collisions/rectangle_rectangle.html" href="/2d/_collisions/rectangle_rectangle.html">Rectangle-Rectangle</a></li>
<li><a title="/2d/_collisions/polygon_polygon.html" href="/2d/_collisions/polygon_polygon.html">Separating Axis Theorem</a></li>
<li><label>Softbody</label></li>
<li><a title="/2d/softbody/softbody_1.html" href="/2d/softbody/softbody_1.html">Springs</a></li>
</ul>
</li>
<li>
<span>🌠<span>3D</span></span>
<ul class="inner-tree">
<li><label>Rigidbody</label></li>
<li><a title="/3d/rigidbody.html" href="/3d/rigidbody.html">Rigidbody in 3D</a></li>
</ul>
</li>
<li>
<span>🔧<span>WebAssembly</span></span>
<ul class="inner-tree">
<li><a title="/intro/intro.html" href="/intro/intro.html">Introduction</a></li>
</ul>
</li>
<li>
<span>🛈<span>About</span></span>
<ul class="inner-tree">
<li><a title="/roadmap.html" href="/roadmap.html">Roadmap</a></li>
</ul>
</li>
</ul>
</nav>
<script src="./softbody_1/dist/output.js"></script>
<script>
window.onload = function() {
function addButtonListener(pPlay, pStop, pDisableElementList) {
var lPlayElement = document.getElementById(pPlay),
lStopElement = document.getElementById(pStop);
lPlayElement.addEventListener('click', function() {
lPlayElement.style.display = 'none';
lStopElement.style.display = 'block';
pDisableElementList.forEach(function(element) {
element.disabled = true;
});
});
lStopElement.addEventListener('click', function() {
lStopElement.style.display = 'none';
lPlayElement.style.display = 'block';
pDisableElementList.forEach(function(element) {
element.disabled = false;
});
});
}
addButtonListener('gl_canvas_play_undamped', 'gl_canvas_stop_undamped', [
document.getElementById('undamped_spring_length'),
document.getElementById('undamped_start_position')
]);
addButtonListener('gl_canvas_play_damped', 'gl_canvas_stop_damped', [
]);
}
</script>
<article>
<h1>Springs</h1>
<section>
<p>
It is time to investigate what it means to have a deformation in our physics system. By deformation, I mean that the
vertices of our shapes are no longer fixed to one point within the model. We will begin with what I believe
by investigating the most common of all deformations: a weight attached to a spring in two dimensions.
</p>
</section>
<section>
<h2></h2>
</section>
<section>
<h2>
Undamped Springs
</h2>
<p>
<span class='widget_container'>
<label for='undamped_spring_length'>Spring Length (m)</label>
<input type='range' id='undamped_spring_length'/>
</span>
<span class='widget_container'>
<label for='undamped_start_position'>Start Displacement (m)</label>
<input type='range' id='undamped_start_position'/>
</span>
</p>
<div class="opengl_canvas_container">
<canvas id="gl_canvas_undamped" width="800" height="600"></canvas>
<button id="gl_canvas_play_undamped" class="play_button">
Play
</button>
<button id="gl_canvas_stop_undamped" class="stop_button">
Stop
</button>
</div>
</section>
<section>
<h2>
Damped Springs
</h2>
<p>
</p>
<div class="opengl_canvas_container">
<canvas id="gl_canvas_damped" width="800" height="600"></canvas>
<button id="gl_canvas_play_damped" class="play_button">
Play
</button>
<button id="gl_canvas_stop_damped" class="stop_button">
Stop
</button>
</div>
</section>
<footer id='references'>
<h2>References</h2>
<ul>
<li>
<a href='https://www.youtube.com/watch?v=Z52emur7Rko'>Wonderful Undamped Resource</a>
</li>
<li>
<a href='https://www.youtube.com/watch?v=CTd1uVq5-l8'>Wonderful Damped Resource</a>
</li>
<li>
<a href='http://ambrsoft.com/CalcPhysics/Spring/SpringData.htm'>List of Equations for Spring Motion</a>
</li>
<li>
<a href='https://www.ryanjuckett.com/damped-springs/'>Ryan Juckett's Explanation of Damped Springs</a>
</li>
</ul>
</footer>
</article>
</main>
</body>
</html>
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