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<html>
<head>
<title>L-Systems.JS Playground</title>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js"></script>
<script src="http://mrdoob.github.com/three.js/build/Three.js"></script>
<script src="bootstrap.min.js"></script>
<script src="lsys.js"></script>
<link rel="stylesheet" href="bootstrap.css" type="text/css"/>
<link rel="stylesheet" href="style.css" type="text/css"/>
<link href="prettify.css" type="text/css" rel="stylesheet"/>
<script type="text/javascript" src="prettify.js"></script>
</head>
<body onload="prettyPrint()">
<div class="page">
<div class="container">
<div class="hero-unit">
<h1>L-Systems.JS</h1>
<p>Explore the power of L-Systems</p>
<p>
<a class="btn btn-large" href="http://github.com/yuvadm/lsys.js">L-Systems.JS on Github</a>
<a class="btn btn-primary btn-large" href="lsys.js">Download L-Systems.JS</a>
</p>
</div>
<h2>Usage</h2>
<hr>
<div class="row">
<div class="span12">
<pre class="prettyprint">
var lsys = new LSystem('F', { 'F': 'F-F+FF' });
var tree = lsys.iterate(2);
console.log(tree); // F-F+FF-F-F+FF+F-F+FFF-F+FF
var coords = lsys.draw(Math.PI / 2);
console.log(coords); // [[0,0,0], [0,1,0], [1,1,0], ...</pre>
</div>
</div>
<h2>Playground</h2>
<hr>
<div class="row">
<div class="span3">
<ul class="nav nav-list"s>
<li class="nav-header">Classic Trees</li>
<li><a href="#">Tree 1</a></li>
<li><a href="#">Tree 2</a></li>
<li><a href="#">Tree 3</a></li>
</ul>
</div>
<div class="span9">
<div id="render-container"></div>
</div>
</div>
<h2>Other</h2>
</div>
</div>
<script>
var WIDTH = 500; //window.innerWidth;
var HEIGHT = 300; //window.innerHeight;
var container;
var scene, camera, renderer;
var mouseX = 0, mouseY = 0;
var windowHalfX = WIDTH / 2;
var windowHalfY = HEIGHT / 2;
init();
draw_axes();
draw_cube();
animate();
function init() {
scene = new THREE.Scene();
camera = new THREE.PerspectiveCamera(20, WIDTH / HEIGHT, 1, 10000);
camera.position.z = 180;
scene.add(camera);
light = new THREE.DirectionalLight( 0xffffff );
light.position.set( 0, 0, 1 );
scene.add(light);
renderer = new THREE.WebGLRenderer( { antialias: true } );
renderer.setSize(WIDTH, HEIGHT);
container = document.getElementById('render-container');
container.appendChild(renderer.domElement);
document.addEventListener('mousemove', onDocumentMouseMove, false);
}
function onDocumentMouseMove( event ) {
mouseX = (event.clientX - windowHalfX);
mouseY = (event.clientY - windowHalfY);
}
function draw_axes() {
var home = new THREE.Vector3(0,0,0);
var x_axis = [home, new THREE.Vector3(150,0,0)];
var y_axis = [home, new THREE.Vector3(0,150,0)];
var z_axis = [home, new THREE.Vector3(0,0,150)];
var axis_geometry = [
new THREE.Geometry(),
new THREE.Geometry(),
new THREE.Geometry()
];
axis_geometry[0] = new THREE.Shape(x_axis).createPointsGeometry();
axis_geometry[1] = new THREE.Shape(y_axis).createPointsGeometry();
axis_geometry[2] = new THREE.Shape(z_axis).createPointsGeometry();
var axis_material = [
new THREE.LineBasicMaterial({ color : 0xff0000 }),
new THREE.LineBasicMaterial({ color : 0x00ff00 }),
new THREE.LineBasicMaterial({ color : 0x0000ff })
];
var axis_line = [
new THREE.Line(axis_geometry[0], axis_material[0]),
new THREE.Line(axis_geometry[1], axis_material[1]),
new THREE.Line(axis_geometry[2], axis_material[2])
];
scene.add(axis_line[0]);
scene.add(axis_line[1]);
scene.add(axis_line[2]);
}
function draw_cube() {
var materials = [];
for (var i=0; i<6; i++) {
materials.push(new THREE.MeshBasicMaterial({
color : Math.random() * 0xffffff
}));
}
var cube = new THREE.Mesh(new THREE.CubeGeometry(5, 5, 5, 1, 1, 1, materials), new THREE.MeshFaceMaterial());
cube.position.x = 2.5;
cube.position.y = 2.5;
cube.position.z = 2.5;
scene.add(cube);
}
function animate() {
requestAnimationFrame(animate);
render();
}
function render() {
camera.position.x += (mouseX - camera.position.x) * 0.05;
camera.position.y += (-mouseY - camera.position.y) * 0.05;
camera.lookAt(scene.position);
renderer.render(scene, camera);
}
</script>
</body>
</html>
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