mirror of
https://github.com/Karaka-Management/jsOMS.git
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508 lines
15 KiB
JavaScript
508 lines
15 KiB
JavaScript
/**
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* Form manager class.
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*
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* @copyright Dennis Eichhorn
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* @license OMS License 2.2
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* @version 1.0.0
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* @since 1.0.0
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*/
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(function (jsOMS)
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{
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'use strict';
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/** @namespace jsOMS.ThreeD.Loader.ObjLoader */
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jsOMS.Autoloader.defineNamespace('jsOMS.ThreeD.Loader.ObjLoader');
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jsOMS.ThreeD.Loader.ObjLoader = function (manager) {
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/** global: THREE */
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this.manager = (manager !== undefined) ? manager : THREE.DefaultLoadingManager;
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this.materials = null;
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this.regexp = {
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vertex_pattern : /^v\s+([\d|\.|\+|\-|e|E]+)\s+([\d|\.|\+|\-|e|E]+)\s+([\d|\.|\+|\-|e|E]+)/,
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normal_pattern : /^vn\s+([\d|\.|\+|\-|e|E]+)\s+([\d|\.|\+|\-|e|E]+)\s+([\d|\.|\+|\-|e|E]+)/,
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uv_pattern : /^vt\s+([\d|\.|\+|\-|e|E]+)\s+([\d|\.|\+|\-|e|E]+)/,
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face_vertex : /^f\s+(-?\d+)\s+(-?\d+)\s+(-?\d+)(?:\s+(-?\d+))?/,
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face_vertex_uv : /^f\s+(-?\d+)\/(-?\d+)\s+(-?\d+)\/(-?\d+)\s+(-?\d+)\/(-?\d+)(?:\s+(-?\d+)\/(-?\d+))?/,
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face_vertex_uv_normal : /^f\s+(-?\d+)\/(-?\d+)\/(-?\d+)\s+(-?\d+)\/(-?\d+)\/(-?\d+)\s+(-?\d+)\/(-?\d+)\/(-?\d+)(?:\s+(-?\d+)\/(-?\d+)\/(-?\d+))?/,
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face_vertex_normal : /^f\s+(-?\d+)\/\/(-?\d+)\s+(-?\d+)\/\/(-?\d+)\s+(-?\d+)\/\/(-?\d+)(?:\s+(-?\d+)\/\/(-?\d+))?/,
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object_pattern : /^[og]\s*(.+)?/,
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smoothing_pattern : /^s\s+(\d+|on|off)/,
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material_library_pattern : /^mtllib /,
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material_use_pattern : /^usemtl /
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};
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};
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jsOMS.ThreeD.Loader.ObjLoader.prototype.setPath = function (path)
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{
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this.path = path;
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};
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jsOMS.ThreeD.Loader.ObjLoader.prototype.setMaterials = function (materials)
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{
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this.materials = materials;
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};
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jsOMS.ThreeD.Loader.ObjLoader.prototype.load = function (uri, onLoad, onProgress, onError)
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{
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let self = this,
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loader = new THREE.FileLoader(this.manager);
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loader.setPath(this.path);
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loader.load(uri, function (text) { onLoad(self.parse(text))}, onProgress, onError);
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};
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jsOMS.ThreeD.Loader.ObjLoader.prototype.createParserState = function ()
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{
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let state = {
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objects : [],
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object : {},
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vertices : [],
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normals : [],
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uvs : [],
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materialLibraries : [],
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startObject: function (name, fromDeclaration) {
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if (this.object && this.object.fromDeclaration === false) {
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this.object.name = name;
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this.object.fromDeclaration = (fromDeclaration !== false);
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return;
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}
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let previousMaterial = (this.object && typeof this.object.currentMaterial === 'function' ? this.object.currentMaterial() : undefined);
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if (this.object && typeof this.object._finalize === 'function') {
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this.object._finalize(true);
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}
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this.object = {
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name : name || '',
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fromDeclaration : (fromDeclaration !== false),
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geometry : {
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vertices : [],
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normals : [],
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uvs : []
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},
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materials : [],
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smooth : true,
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startMaterial : function (name, libraries) {
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let previous = this._finalize(false);
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if (previous && (previous.inherited || previous.groupCount <= 0)) {
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this.materials.splice(previous.index, 1);
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}
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let material = {
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index : this.materials.length,
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name : name || '',
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mtllib : (Array.isArray(libraries) && libraries.length > 0 ? libraries[libraries.length - 1] : ''),
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smooth : (previous !== undefined ? previous.smooth : this.smooth),
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groupStart : (previous !== undefined ? previous.groupEnd : 0),
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groupEnd : -1,
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groupCount : -1,
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inherited : false,
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clone : function (index) {
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const cloned = {
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index : (typeof index === 'number' ? index : this.index),
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name : this.name,
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mtllib : this.mtllib,
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smooth : this.smooth,
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groupStart : 0,
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groupEnd : -1,
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groupCount : -1,
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inherited : false
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};
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cloned.clone = this.clone.bind(cloned);
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return cloned;
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}
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};
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this.materials.push(material);
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return material;
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},
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currentMaterial : function () {
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if (this.materials.length > 0) {
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return this.materials[this.materials.length - 1];
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}
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return undefined;
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},
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_finalize : function (end) {
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let lastMultiMaterial = this.currentMaterial();
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if (lastMultiMaterial && lastMultiMaterial.groupEnd === -1) {
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lastMultiMaterial.groupEnd = this.geometry.vertices.length / 3;
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lastMultiMaterial.groupCount = lastMultiMaterial.groupEnd - lastMultiMaterial.groupStart;
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lastMultiMaterial.inherited = false;
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}
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if (end && this.materials.length > 1) {
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for (let mi = this.materials.length - 1; mi >= 0; mi--) {
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if (this.materials[mi].groupCount <= 0) {
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this.materials.splice(mi, 1);
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}
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}
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}
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if (end && this.materials.length === 0) {
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this.materials.push({
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name : '',
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smooth : this.smooth
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});
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}
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return lastMultiMaterial;
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}
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};
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if (previousMaterial && previousMaterial.name && typeof previousMaterial.clone === "function") {
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let declared = previousMaterial.clone(0);
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declared.inherited = true;
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this.object.materials.push(declared);
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}
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this.objects.push(this.object);
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},
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finalize : function () {
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if (this.object && typeof this.object._finalize === 'function') {
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this.object._finalize(true);
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}
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},
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parseVertexIndex: function (value, len) {
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let index = parseInt(value, 10);
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return (index >= 0 ? index - 1 : index + len / 3) * 3;
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},
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parseNormalIndex: function (value, len) {
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let index = parseInt(value, 10);
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return (index >= 0 ? index - 1 : index + len / 3) * 3;
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},
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parseUVIndex: function (value, len) {
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let index = parseInt(value, 10);
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return (index >= 0 ? index - 1 : index + len / 2) * 2;
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},
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addVertex: function (a, b, c) {
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let src = this.vertices;
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let dst = this.object.geometry.vertices;
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dst.push(src[a + 0]);
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dst.push(src[a + 1]);
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dst.push(src[a + 2]);
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dst.push(src[b + 0]);
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dst.push(src[b + 1]);
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dst.push(src[b + 2]);
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dst.push(src[c + 0]);
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dst.push(src[c + 1]);
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dst.push(src[c + 2]);
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},
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addVertexLine: function (a) {
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let src = this.vertices;
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let dst = this.object.geometry.vertices;
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dst.push(src[a + 0]);
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dst.push(src[a + 1]);
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dst.push(src[a + 2]);
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},
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addNormal : function (a, b, c) {
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let src = this.normals;
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let dst = this.object.geometry.normals;
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dst.push(src[a + 0]);
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dst.push(src[a + 1]);
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dst.push(src[a + 2]);
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dst.push(src[b + 0]);
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dst.push(src[b + 1]);
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dst.push(src[b + 2]);
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dst.push(src[c + 0]);
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dst.push(src[c + 1]);
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dst.push(src[c + 2]);
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},
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addUV: function (a, b, c) {
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let src = this.uvs;
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let dst = this.object.geometry.uvs;
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dst.push(src[a + 0]);
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dst.push(src[a + 1]);
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dst.push(src[b + 0]);
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dst.push(src[b + 1]);
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dst.push(src[c + 0]);
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dst.push(src[c + 1]);
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},
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addUVLine: function (a) {
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let src = this.uvs;
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let dst = this.object.geometry.uvs;
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dst.push(src[a + 0]);
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dst.push(src[a + 1]);
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},
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addFace: function (a, b, c, d, ua, ub, uc, ud, na, nb, nc, nd) {
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let vLen = this.vertices.length;
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let ia = this.parseVertexIndex(a, vLen);
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let ib = this.parseVertexIndex(b, vLen);
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let ic = this.parseVertexIndex(c, vLen);
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let id;
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if (d === undefined) {
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this.addVertex(ia, ib, ic);
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} else {
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id = this.parseVertexIndex(d, vLen);
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this.addVertex(ia, ib, id);
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this.addVertex(ib, ic, id);
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}
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if (ua !== undefined) {
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let uvLen = this.uvs.length;
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ia = this.parseUVIndex(ua, uvLen);
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ib = this.parseUVIndex(ub, uvLen);
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ic = this.parseUVIndex(uc, uvLen);
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if (d === undefined) {
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this.addUV(ia, ib, ic);
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} else {
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id = this.parseUVIndex(ud, uvLen);
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this.addUV(ia, ib, id);
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this.addUV(ib, ic, id);
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}
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}
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if (na !== undefined) {
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let nLen = this.normals.length;
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ia = this.parseNormalIndex(na, nLen);
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ib = na === nb ? ia : this.parseNormalIndex(nb, nLen);
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ic = na === nc ? ia : this.parseNormalIndex(nc, nLen);
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if (d === undefined) {
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this.addNormal(ia, ib, ic);
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} else {
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id = this.parseNormalIndex(nd, nLen);
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this.addNormal(ia, ib, id);
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this.addNormal(ib, ic, id);
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}
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}
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},
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addLineGeometry: function (vertices, uvs) {
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this.object.geometry.type = 'Line';
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let vLen = this.vertices.length;
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let uvLen = this.uvs.length;
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for (let vi = 0, l = vertices.length; vi < l; vi ++) {
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this.addVertexLine(this.parseVertexIndex(vertices[vi], vLen));
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}
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for (let uvi = 0, l = uvs.length; uvi < l; uvi ++) {
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this.addUVLine(this.parseUVIndex(uvs[uvi], uvLen));
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}
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}
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};
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state.startObject('', false);
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return state;
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};
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jsOMS.ThreeD.Loader.ObjLoader.prototype.parse = function (text)
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{
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let state = this.createParserState();
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if (text.indexOf('\r\n') !== -1) {
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text = text.replace(/\r\n/g, '/n');
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}
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if (text.indexOf('\\\n') !== -1) {
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text = text.replace(/\\\n/g, '');
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}
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let lines = text.split('\n'),
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line = '',
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lineFirstChar = '',
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lineSecondChar = '',
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lineLength = 0,
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result = [],
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trimLeft = (typeof ''.trimLeft === 'function');
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for (let i = 0, l = lines.length; i < l; i++) {
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line = lines[i];
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line = trimLeft ? line.trimLeft() : line.trim();
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lineLength = line.length;
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if (lineLength === 0) continue;
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lineFirstChar = line.charAt(0);
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if (lineFirstChar === '#') continue;
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if (lineFirstChar === 'v') {
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lineSecondChar = line.charAt(1);
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if (lineSecondChar === ' ' && (result = this.regexp.vertex_pattern.exec(line)) !== null) {
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state.vertices.push(
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parseFloat(result[1]),
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parseFloat(result[2]),
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parseFloat(result[3])
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);
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} else if (lineSecondChar === 'n' && (result = this.regexp.normal_pattern.exec(line)) !== null) {
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state.normals.push(
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parseFloat(result[1]),
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parseFloat(result[2]),
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parseFloat(result[3])
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);
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} else if (lineSecondChar === 't' && (result = this.regexp.uv_pattern.exec(line)) !== null) {
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state.uvs.push(
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parseFloat(result[1]),
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parseFloat(result[2])
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);
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} else {
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throw new Error("Unexpected vertex/normal/uv line: '" + line + "'");
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}
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} else if (lineFirstChar === "f") {
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if ((result = this.regexp.face_vertex_uv_normal.exec(line)) !== null) {
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state.addFace(
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result[1], result[4], result[7], result[10],
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result[2], result[5], result[8], result[11],
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result[3], result[6], result[9], result[12]
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);
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} else if ((result = this.regexp.face_vertex_uv.exec(line)) !== null) {
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state.addFace(
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result[1], result[3], result[5], result[7],
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result[2], result[4], result[6], result[8]
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);
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} else if ((result = this.regexp.face_vertex_normal.exec(line)) !== null) {
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state.addFace(
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result[1], result[3], result[5], result[7],
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undefined, undefined, undefined, undefined,
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result[2], result[4], result[6], result[8]
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);
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} else if ((result = this.regexp.face_vertex.exec(line)) !== null) {
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state.addFace(
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result[1], result[2], result[3], result[4]
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);
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} else {
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throw new Error("Unexpected face line: '" + line + "'");
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}
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} else if (lineFirstChar === "l") {
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let lineParts = line.substring(1).trim().split(" ");
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let lineVertices = [], lineUVs = [];
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if (line.indexOf("/") === - 1) {
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lineVertices = lineParts;
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} else {
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for (let li = 0, llen = lineParts.length; li < llen; li ++) {
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let parts = lineParts[li].split("/");
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if (parts[0] !== "") lineVertices.push(parts[0]);
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if (parts[1] !== "") lineUVs.push(parts[1]);
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}
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}
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state.addLineGeometry(lineVertices, lineUVs);
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} else if ((result = this.regexp.object_pattern.exec(line)) !== null) {
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let name = (" " + result[0].substr(1).trim()).substr(1);
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state.startObject(name);
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} else if (this.regexp.material_use_pattern.test(line)) {
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state.object.startMaterial(line.substring(7).trim(), state.materialLibraries);
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} else if (this.regexp.material_library_pattern.test(line)) {
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state.materialLibraries.push(line.substring(7).trim());
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} else if ((result = this.regexp.smoothing_pattern.exec(line)) !== null) {
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let value = result[1].trim().toLowerCase();
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state.object.smooth = (value === '1' || value === 'on');
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let material = state.object.currentMaterial();
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if (material) {
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material.smooth = state.object.smooth;
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}
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} else {
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if (line === '\0') continue;
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throw new Error("Unexpected line: '" + line + "'");
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}
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}
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state.finalize();
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let container = new THREE.Group();
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container.materialLibraries = [].concat(state.materialLibraries);
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for (let i = 0, l = state.objects.length; i < l; i ++) {
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let object = state.objects[i];
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let geometry = object.geometry;
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let materials = object.materials;
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let isLine = (geometry.type === 'Line');
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if (geometry.vertices.length === 0) continue;
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let buffergeometry = new THREE.BufferGeometry();
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buffergeometry.addAttribute('position', new THREE.BufferAttribute(new Float32Array(geometry.vertices), 3));
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if (geometry.normals.length > 0) {
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buffergeometry.addAttribute('normal', new THREE.BufferAttribute(new Float32Array(geometry.normals), 3));
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} else {
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buffergeometry.computeVertexNormals();
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}
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if (geometry.uvs.length > 0) {
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buffergeometry.addAttribute('uv', new THREE.BufferAttribute(new Float32Array(geometry.uvs), 2));
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}
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let createdMaterials = [];
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for (let mi = 0, miLen = materials.length; mi < miLen ; mi++) {
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let sourceMaterial = materials[mi];
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let material = undefined;
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if (this.materials !== null) {
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material = this.materials.create(sourceMaterial.name);
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if (isLine && material && !(material instanceof THREE.LineBasicMaterial)) {
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let materialLine = new THREE.LineBasicMaterial();
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materialLine.copy(material);
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material = materialLine;
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}
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}
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if (!material) {
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material = (!isLine ? new THREE.MeshPhongMaterial() : new THREE.LineBasicMaterial());
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material.name = sourceMaterial.name;
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}
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material.shading = sourceMaterial.smooth ? THREE.SmoothShading : THREE.FlatShading;
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createdMaterials.push(material);
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}
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let mesh;
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if (createdMaterials.length > 1) {
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for (let mi = 0, miLen = materials.length; mi < miLen ; mi++) {
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let sourceMaterial = materials[mi];
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buffergeometry.addGroup(sourceMaterial.groupStart, sourceMaterial.groupCount, mi);
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}
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let multiMaterial = new THREE.MultiMaterial(createdMaterials);
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mesh = (!isLine ? new THREE.Mesh(buffergeometry, multiMaterial) : new THREE.LineSegments(buffergeometry, multiMaterial));
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} else {
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mesh = (!isLine ? new THREE.Mesh(buffergeometry, createdMaterials[0]) : new THREE.LineSegments(buffergeometry, createdMaterials[0]));
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}
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|
|
|
mesh.name = object.name;
|
|
|
|
container.add(mesh);
|
|
}
|
|
|
|
return container;
|
|
};
|
|
}(window.jsOMS = window.jsOMS || {})); |