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webgl_geometry_minecraft.html 5.7 KB

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  1. <!DOCTYPE HTML>
  2. <html lang="en">
  3. <head>
  4. <title>three.js webgl - geometry - minecraft</title>
  5. <meta charset="utf-8">
  6. <style type="text/css">
  7. body {
  8. color: #61443e;
  9. font-family:Monospace;
  10. font-size:13px;
  11. text-align:center;
  12. background-color: #bfd1e5;
  13. margin: 0px;
  14. overflow: hidden;
  15. }
  16. #info {
  17. position: absolute;
  18. top: 0px; width: 100%;
  19. padding: 5px;
  20. }
  21. a {
  22. color: #a06851;
  23. }
  24. #oldie {
  25. background:rgb(100,0,0) !important;
  26. color:#fff !important;
  27. margin-top:10em !important;
  28. }
  29. #oldie a { color:#fff }
  30. </style>
  31. </head>
  32. <body>
  33. <div id="container"><br /><br /><br /><br /><br />Generating world...</div>
  34. <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. featuring <a href="http://painterlypack.net/" target="_blank">painterly pack</a><br />(left click: forward, right click: backward)</div>
  35. <script type="text/javascript" src="../build/Three.js"></script>
  36. <script type="text/javascript" src="js/ImprovedNoise.js"></script>
  37. <script type="text/javascript" src="js/Detector.js"></script>
  38. <script type="text/javascript" src="js/RequestAnimationFrame.js"></script>
  39. <script type="text/javascript" src="js/Stats.js"></script>
  40. <script type="text/javascript">
  41. if ( ! Detector.webgl ) {
  42. Detector.addGetWebGLMessage();
  43. document.getElementById( 'container' ).innerHTML = "";
  44. }
  45. var container, stats;
  46. var camera, scene, renderer;
  47. var mesh;
  48. var worldWidth = 128, worldDepth = 128,
  49. worldHalfWidth = worldWidth / 2, worldHalfDepth = worldDepth / 2,
  50. data = generateHeight( worldWidth, worldDepth );
  51. init();
  52. animate();
  53. function init() {
  54. container = document.getElementById( 'container' );
  55. camera = new THREE.QuakeCamera( { fov: 60, aspect: window.innerWidth / window.innerHeight, near: 1, far: 20000,
  56. movementSpeed: 15, lookSpeed: 0.005, noFly: false, lookVertical: true } );
  57. camera.target.position.z = - 100;
  58. scene = new THREE.Scene();
  59. var grass_dirt = loadTexture( 'textures/minecraft/grass_dirt.png' ),
  60. grass = loadTexture( 'textures/minecraft/grass.png' ),
  61. dirt = loadTexture( 'textures/minecraft/dirt.png' );
  62. var materials = [
  63. grass_dirt, // right
  64. grass_dirt, // left
  65. grass, // top
  66. dirt, // bottom
  67. grass_dirt, // back
  68. grass_dirt // front
  69. ];
  70. var h, h2, px, nx, pz, nz, cubes = [];
  71. for ( var i = 0; i < 16; i++ ) {
  72. px = (i & 8) == 8;
  73. nx = (i & 4) == 4;
  74. pz = (i & 2) == 2;
  75. nz = (i & 1) == 1;
  76. cubes[ i ] = new Cube( 100, 100, 100, 1, 1, 1, materials, false, { px: px, nx: nx, py: true, ny: false, pz: pz, nz: nz } );
  77. }
  78. var geometry = new THREE.Geometry();
  79. camera.position.y = getY( worldHalfWidth, worldHalfDepth ) * 100 + 100;
  80. camera.target.position.y = camera.position.y;
  81. for ( var z = 0; z < worldDepth; z ++ ) {
  82. for ( var x = 0; x < worldWidth; x ++ ) {
  83. px = nx = pz = nz = 0;
  84. h = getY( x, z );
  85. h2 = getY( x - 1, z );
  86. px = ( h2 != h && h2 != h + 1 ) || x == 0 ? 1 : 0;
  87. h2 = getY( x + 1, z );
  88. nx = ( h2 != h && h2 != h + 1 ) || x == worldWidth - 1 ? 1 : 0;
  89. h2 = getY( x, z + 1 );
  90. pz = ( h2 != h && h2 != h + 1 ) || z == worldDepth - 1 ? 1 : 0;
  91. h2 = getY( x, z - 1 );
  92. nz = ( h2 != h && h2 != h + 1 ) || z == 0 ? 1 : 0;
  93. mesh = new THREE.Mesh( cubes[ px * 8 + nx * 4 + pz * 2 + nz ] );
  94. mesh.position.x = x * 100 - worldHalfWidth * 100;
  95. mesh.position.y = h * 100;
  96. mesh.position.z = z * 100 - worldHalfDepth * 100;
  97. GeometryUtils.merge( geometry, mesh );
  98. }
  99. }
  100. mesh = new THREE.Mesh( geometry, new THREE.MeshFaceMaterial() );
  101. scene.addObject( mesh );
  102. var ambientLight = new THREE.AmbientLight( 0xcccccc );
  103. scene.addLight( ambientLight );
  104. var directionalLight = new THREE.DirectionalLight( 0xffffff, 1.5 );
  105. directionalLight.position.x = 1;
  106. directionalLight.position.y = 1;
  107. directionalLight.position.z = 0.5;
  108. directionalLight.position.normalize();
  109. scene.addLight( directionalLight );
  110. renderer = new THREE.WebGLRenderer();
  111. renderer.setSize( window.innerWidth, window.innerHeight );
  112. container.innerHTML = "";
  113. container.appendChild( renderer.domElement );
  114. stats = new Stats();
  115. stats.domElement.style.position = 'absolute';
  116. stats.domElement.style.top = '0px';
  117. container.appendChild( stats.domElement );
  118. }
  119. function loadTexture( path ) {
  120. var image = new Image();
  121. image.onload = function () { texture.needsUpdate = true; };
  122. image.src = path;
  123. var texture = new THREE.Texture( image, new THREE.UVMapping(), THREE.ClampToEdgeWrapping, THREE.ClampToEdgeWrapping, THREE.NearestFilter, THREE.LinearMipMapLinearFilter );
  124. return new THREE.MeshLambertMaterial( { map: texture } );
  125. }
  126. function generateHeight( width, height ) {
  127. var data = [], perlin = new ImprovedNoise(),
  128. size = width * height, quality = 2, z = Math.random() * 100;
  129. for ( var j = 0; j < 4; j ++ ) {
  130. if ( j == 0 ) for ( var i = 0; i < size; i ++ ) data[ i ] = 0;
  131. for ( var i = 0; i < size; i ++ ) {
  132. var x = i % width, y = ~~ ( i / width );
  133. data[ i ] += perlin.noise( x / quality, y / quality, z ) * quality;
  134. }
  135. quality *= 4
  136. }
  137. return data;
  138. }
  139. function getY( x, z ) {
  140. return ~~( data[ x + z * worldWidth ] * 0.2 );
  141. }
  142. //
  143. function animate() {
  144. requestAnimationFrame( animate );
  145. render();
  146. stats.update();
  147. }
  148. function render() {
  149. renderer.render( scene, camera );
  150. }
  151. </script>
  152. </body>
  153. </html>