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<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>Extruded A Light</title>
<link rel="stylesheet" href="../include/style.css">
</head>
<body>
<header>
Example from <a href="http://amzn.com/1430236655?tag=html5anim-20"><em>Foundation HTML5 Animation with JavaScript</em></a>
</header>
<canvas id="canvas" width="400" height="400"></canvas>
<aside>Move mouse on canvas element.</aside>
<script src="../include/utils.js"></script>
<script src="./classes/point3d.js"></script>
<script src="./classes/triangle-light.js"></script>
<script src="./classes/light.js"></script>
<script>
window.onload = function () {
var canvas = document.getElementById('canvas'),
context = canvas.getContext('2d'),
mouse = utils.captureMouse(canvas),
light = new Light(),
points = [],
triangles = [],
fl = 250,
vpX = canvas.width / 2,
vpY = canvas.height / 2,
angleX, angleY;
//first set
points[0] = new Point3d( -50, -250, -50);
points[1] = new Point3d( 50, -250, -50);
points[2] = new Point3d( 200, 250, -50);
points[3] = new Point3d( 100, 250, -50);
points[4] = new Point3d( 50, 100, -50);
points[5] = new Point3d( -50, 100, -50);
points[6] = new Point3d(-100, 250, -50);
points[7] = new Point3d(-200, 250, -50);
points[8] = new Point3d( 0, -150, -50);
points[9] = new Point3d( 50, 0, -50);
points[10] = new Point3d( -50, 0, -50);
//second set
points[11] = new Point3d( -50, -250, 50);
points[12] = new Point3d( 50, -250, 50);
points[13] = new Point3d( 200, 250, 50);
points[14] = new Point3d( 100, 250, 50);
points[15] = new Point3d( 50, 100, 50);
points[16] = new Point3d( -50, 100, 50);
points[17] = new Point3d(-100, 250, 50);
points[18] = new Point3d(-200, 250, 50);
points[19] = new Point3d( 0, -150, 50);
points[20] = new Point3d( 50, 0, 50);
points[21] = new Point3d( -50, 0, 50);
points.forEach(function (point) {
point.setVanishingPoint(vpX, vpY);
point.setCenter(0, 0, 200);
});
triangles[0] = new Triangle(points[0], points[1], points[8], "#cccccc");
triangles[1] = new Triangle(points[1], points[9], points[8], "#cccccc");
triangles[2] = new Triangle(points[1], points[2], points[9], "#cccccc");
triangles[3] = new Triangle(points[2], points[4], points[9], "#cccccc");
triangles[4] = new Triangle(points[2], points[3], points[4], "#cccccc");
triangles[5] = new Triangle(points[4], points[5], points[9], "#cccccc");
triangles[6] = new Triangle(points[9], points[5], points[10], "#cccccc");
triangles[7] = new Triangle(points[5], points[6], points[7], "#cccccc");
triangles[8] = new Triangle(points[5], points[7], points[10], "#cccccc");
triangles[9] = new Triangle(points[0], points[10], points[7], "#cccccc");
triangles[10] = new Triangle(points[0], points[8], points[10], "#cccccc");
triangles[11] = new Triangle(points[11], points[19], points[12], "#cccccc");
triangles[12] = new Triangle(points[12], points[19], points[20], "#cccccc");
triangles[13] = new Triangle(points[12], points[20], points[13], "#cccccc");
triangles[14] = new Triangle(points[13], points[20], points[15], "#cccccc");
triangles[15] = new Triangle(points[13], points[15], points[14], "#cccccc");
triangles[16] = new Triangle(points[15], points[20], points[16], "#cccccc");
triangles[17] = new Triangle(points[20], points[21], points[16], "#cccccc");
triangles[18] = new Triangle(points[16], points[18], points[17], "#cccccc");
triangles[19] = new Triangle(points[16], points[21], points[18], "#cccccc");
triangles[20] = new Triangle(points[11], points[18], points[21], "#cccccc");
triangles[21] = new Triangle(points[11], points[21], points[19], "#cccccc");
triangles[22] = new Triangle(points[0], points[11], points[1], "#cccccc");
triangles[23] = new Triangle(points[11], points[12], points[1], "#cccccc");
triangles[24] = new Triangle(points[1], points[12], points[2], "#cccccc");
triangles[25] = new Triangle(points[12], points[13], points[2], "#cccccc");
triangles[26] = new Triangle(points[3], points[2], points[14], "#cccccc");
triangles[27] = new Triangle(points[2], points[13], points[14], "#cccccc");
triangles[28] = new Triangle(points[4], points[3], points[15], "#cccccc");
triangles[29] = new Triangle(points[3], points[14], points[15], "#cccccc");
triangles[30] = new Triangle(points[5], points[4], points[16], "#cccccc");
triangles[31] = new Triangle(points[4], points[15], points[16], "#cccccc");
triangles[32] = new Triangle(points[6], points[5], points[17], "#cccccc");
triangles[33] = new Triangle(points[5], points[16], points[17], "#cccccc");
triangles[34] = new Triangle(points[7], points[6], points[18], "#cccccc");
triangles[35] = new Triangle(points[6], points[17], points[18], "#cccccc");
triangles[36] = new Triangle(points[0], points[7], points[11], "#cccccc");
triangles[37] = new Triangle(points[7], points[18], points[11], "#cccccc");
triangles[38] = new Triangle(points[8], points[9], points[19], "#cccccc");
triangles[39] = new Triangle(points[9], points[20], points[19], "#cccccc");
triangles[40] = new Triangle(points[9], points[10], points[20], "#cccccc");
triangles[41] = new Triangle(points[10], points[21], points[20], "#cccccc");
triangles[42] = new Triangle(points[10], points[8], points[21], "#cccccc");
triangles[43] = new Triangle(points[8], points[19], points[21], "#cccccc");
triangles.forEach(function (triangle) {
triangle.light = light;
});
function move (point) {
point.rotateX(angleX);
point.rotateY(angleY);
}
function depth (a, b) {
return (b.getDepth() - a.getDepth());
}
function draw (triangle) {
triangle.draw(context);
}
(function drawFrame () {
window.requestAnimationFrame(drawFrame, canvas);
context.clearRect(0, 0, canvas.width, canvas.height);
angleX = (mouse.y - vpY) * 0.0005;
angleY = (mouse.x - vpX) * 0.0005;
points.forEach(move);
triangles.sort(depth);
triangles.forEach(draw);
}());
};
</script>
</body>
</html>