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+<!DOCTYPE HTML>
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+<html lang="en">
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+ <head>
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+ <title>three.js - geometry - minecraft</title>
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+ <meta charset="utf-8">
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+ <style type="text/css">
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+ body {
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+ color: #61443e;
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+ font-family:Monospace;
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+ font-size:13px;
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+ text-align:center;
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+
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+ background-color: #bfd1e5;
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+ margin: 0px;
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+ overflow: hidden;
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+ }
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+
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+ #info {
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+ position: absolute;
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+ top: 0px; width: 100%;
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+ padding: 5px;
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+ }
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+
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+ a {
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+
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+ color: #a06851;
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+ }
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+
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+ </style>
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+ </head>
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+ <body>
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+
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+ <div id="container"><br /><br /><br /><br /><br />Generating world...</div>
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+ <div id="info"><a href="http://github.com/mrdoob/three.js" target="_blank">three.js</a> - <a href="http://www.minecraft.net/" target="_blank">minecraft</a> demo.<br />(camera move: WASD/↑←↓→)</div>
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+
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+ <script type="text/javascript" src="js/Stats.js"></script>
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+ <script type="text/javascript" src="js/ImprovedNoise.js"></script>
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+
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+ <script type="text/javascript" src="../build/Three.js"></script>
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+ <script type="text/javascript" src="../src/extras/GeometryUtils.js"></script>
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+ <script type="text/javascript" src="../src/extras/primitives/Cube.js"></script>
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+
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+ <script type="text/javascript">
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+
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+ var container, stats;
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+
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+ var camera, scene, renderer;
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+
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+ var mesh;
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+
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+ var worldWidth = 128, worldDepth = 128,
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+ worldHalfWidth = worldWidth / 2, worldHalfDepth = worldDepth / 2,
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+ data = generateHeight( worldWidth, worldDepth );
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+
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+ var mouseX = 0, mouseY = 0,
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+ lat = 0, lon = 0, phy = 0, theta = 0;
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+
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+ var direction = new THREE.Vector3(),
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+ moveForward = false, moveBackwards = false,
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+ moveLeft = false, moveRight = false;
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+
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+ var windowHalfX = window.innerWidth / 2;
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+ var windowHalfY = window.innerHeight / 2;
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+
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+
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+ init();
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+ setInterval( loop, 1000 / 60 );
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+
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+
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+ function init() {
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+
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+ container = document.getElementById( 'container' );
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+
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+ camera = new THREE.Camera( 60, window.innerWidth / window.innerHeight, 1, 20000 );
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+ camera.target.position.z = - 100;
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+
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+ scene = new THREE.Scene();
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+
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+ var materials = [
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+
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+ loadTexture( 'textures/minecraft/grass_dirt.png' ), // right
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+ loadTexture( 'textures/minecraft/grass_dirt.png' ), // left
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+ loadTexture( 'textures/minecraft/grass.png' ), // top
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+ loadTexture( 'textures/minecraft/dirt.png' ), // bottom
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+ loadTexture( 'textures/minecraft/grass_dirt.png' ), // back
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+ loadTexture( 'textures/minecraft/grass_dirt.png' ) // front
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+
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+ ];
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+
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+ var cube = new Cube( 100, 100, 100, 1, 1, materials );
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+ var geometry = new THREE.Geometry();
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+
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+ camera.position.y = getY( worldHalfWidth, worldHalfDepth ) + 100;
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+ camera.target.position.y = camera.position.y;
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+
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+ for ( var y = 0; y < worldDepth; y ++ ) {
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+
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+ for ( var x = 0; x < worldWidth; x ++ ) {
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+
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+ mesh = new THREE.Mesh( cube );
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+ mesh.position.x = x * 100 - worldHalfWidth * 100;
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+ mesh.position.y = Math.floor( data[ x + y * worldWidth ] * 0.2 ) * 100;
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+ mesh.position.z = y * 100 - worldHalfDepth * 100;
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+
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+ GeometryUtils.merge( geometry, mesh );
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+ }
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+
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+ }
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+
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+ geometry.sortFacesByMaterial();
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+
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+ mesh = new THREE.Mesh( geometry, new THREE.MeshFaceMaterial() );
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+ scene.addObject( mesh );
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+
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+ var ambientLight = new THREE.AmbientLight( 0xcccccc );
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+ scene.addLight( ambientLight );
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+
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+ var pointLight = new THREE.DirectionalLight( 0xffffff, 1 );
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+ pointLight.position.x = 1;
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+ pointLight.position.y = 1;
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+ pointLight.position.z = 0.5;
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+ pointLight.position.normalize;
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+ scene.addLight( pointLight );
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+
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+ renderer = new THREE.WebGLRenderer();
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+ renderer.setSize( window.innerWidth, window.innerHeight );
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+
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+ container.innerHTML = "";
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+
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+ container.appendChild( renderer.domElement );
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+
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+ stats = new Stats();
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+ stats.domElement.style.position = 'absolute';
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+ stats.domElement.style.top = '0px';
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+ container.appendChild( stats.domElement );
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+
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+ document.addEventListener( 'mousemove', onDocumentMouseMove, false );
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+ document.addEventListener( 'keydown', onDocumentKeyDown, false );
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+ document.addEventListener( 'keyup', onDocumentKeyUp, false );
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+
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+ }
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+
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+ function loadTexture( path ) {
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+
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+ var image = new Image();
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+ image.onload = function () { this.loaded = true; };
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+ image.src = path;
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+
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+ return new THREE.MeshLambertMaterial( { map: new THREE.Texture( image, THREE.ClampToEdgeWrapping, THREE.ClampToEdgeWrapping, THREE.NearestFilter, THREE.NearestFilter ) } );
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+
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+ }
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+
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+ function generateHeight( width, height ) {
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+
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+ var data = [], perlin = new ImprovedNoise(),
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+ size = width * height, quality = 2, z = Math.random() * 100;
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+
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+ for ( var j = 0; j < 4; j ++ ) {
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+
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+ if ( j == 0 ) for ( var i = 0; i < size; i ++ ) data[ i ] = 0;
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+
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+ for ( var i = 0; i < size; i ++ ) {
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+
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+ var x = i % width, y = ~~ ( i / width );
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+ data[ i ] += perlin.noise( x / quality, y / quality, z ) * quality;
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+
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+
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+ }
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+
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+ quality *= 4
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+
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+ }
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+
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+ return data;
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+
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+ }
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+
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+ function getY( x, z ) {
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+
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+ return ~~( data[ x + z * worldWidth ] * 0.2 ) * 100
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+
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+ }
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+
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+ function onDocumentMouseMove(event) {
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+
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+ mouseX = event.clientX - windowHalfX;
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+ mouseY = event.clientY - windowHalfY;
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+
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+ }
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+
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+ function onDocumentKeyDown( event ) {
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+
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+ console.log( event.keyCode );
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+
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+ switch( event.keyCode ) {
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+
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+ case 38: /*↑*/ moveForward = true; break;
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+ case 40: /*↓*/ moveBackwards = true; break;
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+ case 37: /*←*/ moveLeft = true; break;
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+ case 39: /*→*/ moveRight = true; break;
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+
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+ case 87: /*W*/ moveForward = true; break;
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+ case 83: /*S*/ moveBackwards = true; break;
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+ case 65: /*A*/ moveLeft = true; break;
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+ case 68: /*D*/ moveRight = true; break;
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+
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+ }
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+
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+ }
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+
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+ function onDocumentKeyUp( event ) {
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+
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+ switch( event.keyCode ) {
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+
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+ case 38: /*↑*/ moveForward = false; break;
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+ case 40: /*↓*/ moveBackwards = false; break;
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+ case 37: /*←*/ moveLeft = false; break;
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+ case 39: /*→*/ moveRight = false; break;
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+
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+ case 87: /*W*/ moveForward = false; break;
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+ case 83: /*S*/ moveBackwards = false; break;
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+ case 65: /*A*/ moveLeft = false; break;
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+ case 68: /*D*/ moveRight = false; break;
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+
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+ }
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+
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+ }
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+
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+ function loop() {
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+
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+ if ( moveForward ) {
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+
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+ direction.copy( camera.target.position ).subSelf( camera.position ).normalize().multiplyScalar( 15 );
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+ camera.position.addSelf( direction );
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+ camera.target.position.addSelf( direction );
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+
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+ }
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+
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+ if ( moveBackwards ) {
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+
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+ direction.copy( camera.target.position ).subSelf( camera.position ).normalize().multiplyScalar( - 15 );
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+ camera.position.addSelf( direction );
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+ camera.target.position.addSelf( direction );
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+
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+ }
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+
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+ if ( moveLeft ) {
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+
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+ direction.copy( camera.target.position ).subSelf( camera.position ).normalize().multiplyScalar( - 15 );
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+ direction.cross( direction.clone(), new THREE.Vector3( 0, 1, 0 ) );
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+ camera.position.addSelf( direction );
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+ camera.target.position.addSelf( direction );
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+
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+ }
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+
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+ if ( moveRight ) {
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+
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+ direction.copy( camera.target.position ).subSelf( camera.position ).normalize().multiplyScalar( 15 );
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+ direction.cross( direction.clone(), new THREE.Vector3( 0, 1, 0 ) );
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+ camera.position.addSelf( direction );
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+ camera.target.position.addSelf( direction );
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+
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+ };
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+
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+ lon += mouseX * 0.005;
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+ lat -= mouseY * 0.005;
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+
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+ lat = Math.max( - 85, Math.min( 85, lat ) );
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+ phi = ( 90 - lat ) * Math.PI / 180;
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+ theta = lon * Math.PI / 180;
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+
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+ camera.target.position.x = 100 * Math.sin( phi ) * Math.cos( theta ) + camera.position.x;
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+ camera.target.position.y = 100 * Math.cos( phi ) + camera.position.y;
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+ camera.target.position.z = 100 * Math.sin( phi ) * Math.sin( theta ) + camera.position.z;
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+
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+ renderer.render(scene, camera);
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+ stats.update();
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+
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+ }
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+
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+ </script>
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+
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+ </body>
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+</html>
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