Initial project import

node_modules/three-stdlib/loaders/TDSLoader.cjs

@@ -0,0 +1,651 @@
+"use strict";
+Object.defineProperty(exports, Symbol.toStringTag, { value: "Module" });
+const THREE = require("three");
+class TDSLoader extends THREE.Loader {
+  constructor(manager) {
+    super(manager);
+    this.debug = false;
+    this.group = null;
+    this.position = 0;
+    this.materials = [];
+    this.meshes = [];
+  }
+  /**
+   * Load 3ds file from url.
+   *
+   * @method load
+   * @param {[type]} url URL for the file.
+   * @param {Function} onLoad onLoad callback, receives group Object3D as argument.
+   * @param {Function} onProgress onProgress callback.
+   * @param {Function} onError onError callback.
+   */
+  load(url, onLoad, onProgress, onError) {
+    const scope = this;
+    const path = this.path === "" ? THREE.LoaderUtils.extractUrlBase(url) : this.path;
+    const loader = new THREE.FileLoader(this.manager);
+    loader.setPath(this.path);
+    loader.setResponseType("arraybuffer");
+    loader.setRequestHeader(this.requestHeader);
+    loader.setWithCredentials(this.withCredentials);
+    loader.load(
+      url,
+      function(data) {
+        try {
+          onLoad(scope.parse(data, path));
+        } catch (e) {
+          if (onError) {
+            onError(e);
+          } else {
+            console.error(e);
+          }
+          scope.manager.itemError(url);
+        }
+      },
+      onProgress,
+      onError
+    );
+  }
+  /**
+   * Parse arraybuffer data and load 3ds file.
+   *
+   * @method parse
+   * @param {ArrayBuffer} arraybuffer Arraybuffer data to be loaded.
+   * @param {String} path Path for external resources.
+   * @return {Group} Group loaded from 3ds file.
+   */
+  parse(arraybuffer, path) {
+    this.group = new THREE.Group();
+    this.position = 0;
+    this.materials = [];
+    this.meshes = [];
+    this.readFile(arraybuffer, path);
+    for (let i = 0; i < this.meshes.length; i++) {
+      this.group.add(this.meshes[i]);
+    }
+    return this.group;
+  }
+  /**
+   * Decode file content to read 3ds data.
+   *
+   * @method readFile
+   * @param {ArrayBuffer} arraybuffer Arraybuffer data to be loaded.
+   * @param {String} path Path for external resources.
+   */
+  readFile(arraybuffer, path) {
+    const data = new DataView(arraybuffer);
+    const chunk = this.readChunk(data);
+    if (chunk.id === MLIBMAGIC || chunk.id === CMAGIC || chunk.id === M3DMAGIC) {
+      let next = this.nextChunk(data, chunk);
+      while (next !== 0) {
+        if (next === M3D_VERSION) {
+          const version = this.readDWord(data);
+          this.debugMessage("3DS file version: " + version);
+        } else if (next === MDATA) {
+          this.resetPosition(data);
+          this.readMeshData(data, path);
+        } else {
+          this.debugMessage("Unknown main chunk: " + next.toString(16));
+        }
+        next = this.nextChunk(data, chunk);
+      }
+    }
+    this.debugMessage("Parsed " + this.meshes.length + " meshes");
+  }
+  /**
+   * Read mesh data chunk.
+   *
+   * @method readMeshData
+   * @param {Dataview} data Dataview in use.
+   * @param {String} path Path for external resources.
+   */
+  readMeshData(data, path) {
+    const chunk = this.readChunk(data);
+    let next = this.nextChunk(data, chunk);
+    while (next !== 0) {
+      if (next === MESH_VERSION) {
+        const version = +this.readDWord(data);
+        this.debugMessage("Mesh Version: " + version);
+      } else if (next === MASTER_SCALE) {
+        const scale = this.readFloat(data);
+        this.debugMessage("Master scale: " + scale);
+        this.group.scale.set(scale, scale, scale);
+      } else if (next === NAMED_OBJECT) {
+        this.debugMessage("Named Object");
+        this.resetPosition(data);
+        this.readNamedObject(data);
+      } else if (next === MAT_ENTRY) {
+        this.debugMessage("Material");
+        this.resetPosition(data);
+        this.readMaterialEntry(data, path);
+      } else {
+        this.debugMessage("Unknown MDATA chunk: " + next.toString(16));
+      }
+      next = this.nextChunk(data, chunk);
+    }
+  }
+  /**
+   * Read named object chunk.
+   *
+   * @method readNamedObject
+   * @param {Dataview} data Dataview in use.
+   */
+  readNamedObject(data) {
+    const chunk = this.readChunk(data);
+    const name = this.readString(data, 64);
+    chunk.cur = this.position;
+    let next = this.nextChunk(data, chunk);
+    while (next !== 0) {
+      if (next === N_TRI_OBJECT) {
+        this.resetPosition(data);
+        const mesh = this.readMesh(data);
+        mesh.name = name;
+        this.meshes.push(mesh);
+      } else {
+        this.debugMessage("Unknown named object chunk: " + next.toString(16));
+      }
+      next = this.nextChunk(data, chunk);
+    }
+    this.endChunk(chunk);
+  }
+  /**
+   * Read material data chunk and add it to the material list.
+   *
+   * @method readMaterialEntry
+   * @param {Dataview} data Dataview in use.
+   * @param {String} path Path for external resources.
+   */
+  readMaterialEntry(data, path) {
+    const chunk = this.readChunk(data);
+    let next = this.nextChunk(data, chunk);
+    const material = new THREE.MeshPhongMaterial();
+    while (next !== 0) {
+      if (next === MAT_NAME) {
+        material.name = this.readString(data, 64);
+        this.debugMessage("   Name: " + material.name);
+      } else if (next === MAT_WIRE) {
+        this.debugMessage("   Wireframe");
+        material.wireframe = true;
+      } else if (next === MAT_WIRE_SIZE) {
+        const value = this.readByte(data);
+        material.wireframeLinewidth = value;
+        this.debugMessage("   Wireframe Thickness: " + value);
+      } else if (next === MAT_TWO_SIDE) {
+        material.side = THREE.DoubleSide;
+        this.debugMessage("   DoubleSided");
+      } else if (next === MAT_ADDITIVE) {
+        this.debugMessage("   Additive Blending");
+        material.blending = THREE.AdditiveBlending;
+      } else if (next === MAT_DIFFUSE) {
+        this.debugMessage("   Diffuse Color");
+        material.color = this.readColor(data);
+      } else if (next === MAT_SPECULAR) {
+        this.debugMessage("   Specular Color");
+        material.specular = this.readColor(data);
+      } else if (next === MAT_AMBIENT) {
+        this.debugMessage("   Ambient color");
+        material.color = this.readColor(data);
+      } else if (next === MAT_SHININESS) {
+        const shininess = this.readPercentage(data);
+        material.shininess = shininess * 100;
+        this.debugMessage("   Shininess : " + shininess);
+      } else if (next === MAT_TRANSPARENCY) {
+        const transparency = this.readPercentage(data);
+        material.opacity = 1 - transparency;
+        this.debugMessage("  Transparency : " + transparency);
+        material.transparent = material.opacity < 1 ? true : false;
+      } else if (next === MAT_TEXMAP) {
+        this.debugMessage("   ColorMap");
+        this.resetPosition(data);
+        material.map = this.readMap(data, path);
+      } else if (next === MAT_BUMPMAP) {
+        this.debugMessage("   BumpMap");
+        this.resetPosition(data);
+        material.bumpMap = this.readMap(data, path);
+      } else if (next === MAT_OPACMAP) {
+        this.debugMessage("   OpacityMap");
+        this.resetPosition(data);
+        material.alphaMap = this.readMap(data, path);
+      } else if (next === MAT_SPECMAP) {
+        this.debugMessage("   SpecularMap");
+        this.resetPosition(data);
+        material.specularMap = this.readMap(data, path);
+      } else {
+        this.debugMessage("   Unknown material chunk: " + next.toString(16));
+      }
+      next = this.nextChunk(data, chunk);
+    }
+    this.endChunk(chunk);
+    this.materials[material.name] = material;
+  }
+  /**
+   * Read mesh data chunk.
+   *
+   * @method readMesh
+   * @param {Dataview} data Dataview in use.
+   * @return {Mesh} The parsed mesh.
+   */
+  readMesh(data) {
+    const chunk = this.readChunk(data);
+    let next = this.nextChunk(data, chunk);
+    const geometry = new THREE.BufferGeometry();
+    const material = new THREE.MeshPhongMaterial();
+    const mesh = new THREE.Mesh(geometry, material);
+    mesh.name = "mesh";
+    while (next !== 0) {
+      if (next === POINT_ARRAY) {
+        const points = this.readWord(data);
+        this.debugMessage("   Vertex: " + points);
+        const vertices = [];
+        for (let i = 0; i < points; i++) {
+          vertices.push(this.readFloat(data));
+          vertices.push(this.readFloat(data));
+          vertices.push(this.readFloat(data));
+        }
+        geometry.setAttribute("position", new THREE.Float32BufferAttribute(vertices, 3));
+      } else if (next === FACE_ARRAY) {
+        this.resetPosition(data);
+        this.readFaceArray(data, mesh);
+      } else if (next === TEX_VERTS) {
+        const texels = this.readWord(data);
+        this.debugMessage("   UV: " + texels);
+        const uvs = [];
+        for (let i = 0; i < texels; i++) {
+          uvs.push(this.readFloat(data));
+          uvs.push(this.readFloat(data));
+        }
+        geometry.setAttribute("uv", new THREE.Float32BufferAttribute(uvs, 2));
+      } else if (next === MESH_MATRIX) {
+        this.debugMessage("   Tranformation Matrix (TODO)");
+        const values = [];
+        for (let i = 0; i < 12; i++) {
+          values[i] = this.readFloat(data);
+        }
+        const matrix = new THREE.Matrix4();
+        matrix.elements[0] = values[0];
+        matrix.elements[1] = values[6];
+        matrix.elements[2] = values[3];
+        matrix.elements[3] = values[9];
+        matrix.elements[4] = values[2];
+        matrix.elements[5] = values[8];
+        matrix.elements[6] = values[5];
+        matrix.elements[7] = values[11];
+        matrix.elements[8] = values[1];
+        matrix.elements[9] = values[7];
+        matrix.elements[10] = values[4];
+        matrix.elements[11] = values[10];
+        matrix.elements[12] = 0;
+        matrix.elements[13] = 0;
+        matrix.elements[14] = 0;
+        matrix.elements[15] = 1;
+        matrix.transpose();
+        const inverse = new THREE.Matrix4();
+        inverse.copy(matrix).invert();
+        geometry.applyMatrix4(inverse);
+        matrix.decompose(mesh.position, mesh.quaternion, mesh.scale);
+      } else {
+        this.debugMessage("   Unknown mesh chunk: " + next.toString(16));
+      }
+      next = this.nextChunk(data, chunk);
+    }
+    this.endChunk(chunk);
+    geometry.computeVertexNormals();
+    return mesh;
+  }
+  /**
+   * Read face array data chunk.
+   *
+   * @method readFaceArray
+   * @param {Dataview} data Dataview in use.
+   * @param {Mesh} mesh Mesh to be filled with the data read.
+   */
+  readFaceArray(data, mesh) {
+    const chunk = this.readChunk(data);
+    const faces = this.readWord(data);
+    this.debugMessage("   Faces: " + faces);
+    const index = [];
+    for (let i = 0; i < faces; ++i) {
+      index.push(this.readWord(data), this.readWord(data), this.readWord(data));
+      this.readWord(data);
+    }
+    mesh.geometry.setIndex(index);
+    let materialIndex = 0;
+    let start = 0;
+    while (this.position < chunk.end) {
+      const subchunk = this.readChunk(data);
+      if (subchunk.id === MSH_MAT_GROUP) {
+        this.debugMessage("      Material Group");
+        this.resetPosition(data);
+        const group = this.readMaterialGroup(data);
+        const count = group.index.length * 3;
+        mesh.geometry.addGroup(start, count, materialIndex);
+        start += count;
+        materialIndex++;
+        const material = this.materials[group.name];
+        if (Array.isArray(mesh.material) === false)
+          mesh.material = [];
+        if (material !== void 0) {
+          mesh.material.push(material);
+        }
+      } else {
+        this.debugMessage("      Unknown face array chunk: " + subchunk.toString(16));
+      }
+      this.endChunk(subchunk);
+    }
+    if (mesh.material.length === 1)
+      mesh.material = mesh.material[0];
+    this.endChunk(chunk);
+  }
+  /**
+   * Read texture map data chunk.
+   *
+   * @method readMap
+   * @param {Dataview} data Dataview in use.
+   * @param {String} path Path for external resources.
+   * @return {Texture} Texture read from this data chunk.
+   */
+  readMap(data, path) {
+    const chunk = this.readChunk(data);
+    let next = this.nextChunk(data, chunk);
+    let texture = {};
+    const loader = new THREE.TextureLoader(this.manager);
+    loader.setPath(this.resourcePath || path).setCrossOrigin(this.crossOrigin);
+    while (next !== 0) {
+      if (next === MAT_MAPNAME) {
+        const name = this.readString(data, 128);
+        texture = loader.load(name);
+        this.debugMessage("      File: " + path + name);
+      } else if (next === MAT_MAP_UOFFSET) {
+        texture.offset.x = this.readFloat(data);
+        this.debugMessage("      OffsetX: " + texture.offset.x);
+      } else if (next === MAT_MAP_VOFFSET) {
+        texture.offset.y = this.readFloat(data);
+        this.debugMessage("      OffsetY: " + texture.offset.y);
+      } else if (next === MAT_MAP_USCALE) {
+        texture.repeat.x = this.readFloat(data);
+        this.debugMessage("      RepeatX: " + texture.repeat.x);
+      } else if (next === MAT_MAP_VSCALE) {
+        texture.repeat.y = this.readFloat(data);
+        this.debugMessage("      RepeatY: " + texture.repeat.y);
+      } else {
+        this.debugMessage("      Unknown map chunk: " + next.toString(16));
+      }
+      next = this.nextChunk(data, chunk);
+    }
+    this.endChunk(chunk);
+    return texture;
+  }
+  /**
+   * Read material group data chunk.
+   *
+   * @method readMaterialGroup
+   * @param {Dataview} data Dataview in use.
+   * @return {Object} Object with name and index of the object.
+   */
+  readMaterialGroup(data) {
+    this.readChunk(data);
+    const name = this.readString(data, 64);
+    const numFaces = this.readWord(data);
+    this.debugMessage("         Name: " + name);
+    this.debugMessage("         Faces: " + numFaces);
+    const index = [];
+    for (let i = 0; i < numFaces; ++i) {
+      index.push(this.readWord(data));
+    }
+    return { name, index };
+  }
+  /**
+   * Read a color value.
+   *
+   * @method readColor
+   * @param {DataView} data Dataview.
+   * @return {Color} Color value read..
+   */
+  readColor(data) {
+    const chunk = this.readChunk(data);
+    const color = new THREE.Color();
+    if (chunk.id === COLOR_24 || chunk.id === LIN_COLOR_24) {
+      const r = this.readByte(data);
+      const g = this.readByte(data);
+      const b = this.readByte(data);
+      color.setRGB(r / 255, g / 255, b / 255);
+      this.debugMessage("      Color: " + color.r + ", " + color.g + ", " + color.b);
+    } else if (chunk.id === COLOR_F || chunk.id === LIN_COLOR_F) {
+      const r = this.readFloat(data);
+      const g = this.readFloat(data);
+      const b = this.readFloat(data);
+      color.setRGB(r, g, b);
+      this.debugMessage("      Color: " + color.r + ", " + color.g + ", " + color.b);
+    } else {
+      this.debugMessage("      Unknown color chunk: " + chunk.toString(16));
+    }
+    this.endChunk(chunk);
+    return color;
+  }
+  /**
+   * Read next chunk of data.
+   *
+   * @method readChunk
+   * @param {DataView} data Dataview.
+   * @return {Object} Chunk of data read.
+   */
+  readChunk(data) {
+    const chunk = {};
+    chunk.cur = this.position;
+    chunk.id = this.readWord(data);
+    chunk.size = this.readDWord(data);
+    chunk.end = chunk.cur + chunk.size;
+    chunk.cur += 6;
+    return chunk;
+  }
+  /**
+   * Set position to the end of the current chunk of data.
+   *
+   * @method endChunk
+   * @param {Object} chunk Data chunk.
+   */
+  endChunk(chunk) {
+    this.position = chunk.end;
+  }
+  /**
+   * Move to the next data chunk.
+   *
+   * @method nextChunk
+   * @param {DataView} data Dataview.
+   * @param {Object} chunk Data chunk.
+   */
+  nextChunk(data, chunk) {
+    if (chunk.cur >= chunk.end) {
+      return 0;
+    }
+    this.position = chunk.cur;
+    try {
+      const next = this.readChunk(data);
+      chunk.cur += next.size;
+      return next.id;
+    } catch (e) {
+      this.debugMessage("Unable to read chunk at " + this.position);
+      return 0;
+    }
+  }
+  /**
+   * Reset dataview position.
+   *
+   * @method resetPosition
+   */
+  resetPosition() {
+    this.position -= 6;
+  }
+  /**
+   * Read byte value.
+   *
+   * @method readByte
+   * @param {DataView} data Dataview to read data from.
+   * @return {Number} Data read from the dataview.
+   */
+  readByte(data) {
+    const v = data.getUint8(this.position, true);
+    this.position += 1;
+    return v;
+  }
+  /**
+   * Read 32 bit float value.
+   *
+   * @method readFloat
+   * @param {DataView} data Dataview to read data from.
+   * @return {Number} Data read from the dataview.
+   */
+  readFloat(data) {
+    try {
+      const v = data.getFloat32(this.position, true);
+      this.position += 4;
+      return v;
+    } catch (e) {
+      this.debugMessage(e + " " + this.position + " " + data.byteLength);
+    }
+  }
+  /**
+   * Read 32 bit signed integer value.
+   *
+   * @method readInt
+   * @param {DataView} data Dataview to read data from.
+   * @return {Number} Data read from the dataview.
+   */
+  readInt(data) {
+    const v = data.getInt32(this.position, true);
+    this.position += 4;
+    return v;
+  }
+  /**
+   * Read 16 bit signed integer value.
+   *
+   * @method readShort
+   * @param {DataView} data Dataview to read data from.
+   * @return {Number} Data read from the dataview.
+   */
+  readShort(data) {
+    const v = data.getInt16(this.position, true);
+    this.position += 2;
+    return v;
+  }
+  /**
+   * Read 64 bit unsigned integer value.
+   *
+   * @method readDWord
+   * @param {DataView} data Dataview to read data from.
+   * @return {Number} Data read from the dataview.
+   */
+  readDWord(data) {
+    const v = data.getUint32(this.position, true);
+    this.position += 4;
+    return v;
+  }
+  /**
+   * Read 32 bit unsigned integer value.
+   *
+   * @method readWord
+   * @param {DataView} data Dataview to read data from.
+   * @return {Number} Data read from the dataview.
+   */
+  readWord(data) {
+    const v = data.getUint16(this.position, true);
+    this.position += 2;
+    return v;
+  }
+  /**
+   * Read string value.
+   *
+   * @method readString
+   * @param {DataView} data Dataview to read data from.
+   * @param {Number} maxLength Max size of the string to be read.
+   * @return {String} Data read from the dataview.
+   */
+  readString(data, maxLength) {
+    let s = "";
+    for (let i = 0; i < maxLength; i++) {
+      const c = this.readByte(data);
+      if (!c) {
+        break;
+      }
+      s += String.fromCharCode(c);
+    }
+    return s;
+  }
+  /**
+   * Read percentage value.
+   *
+   * @method readPercentage
+   * @param {DataView} data Dataview to read data from.
+   * @return {Number} Data read from the dataview.
+   */
+  readPercentage(data) {
+    const chunk = this.readChunk(data);
+    let value;
+    switch (chunk.id) {
+      case INT_PERCENTAGE:
+        value = this.readShort(data) / 100;
+        break;
+      case FLOAT_PERCENTAGE:
+        value = this.readFloat(data);
+        break;
+      default:
+        this.debugMessage("      Unknown percentage chunk: " + chunk.toString(16));
+    }
+    this.endChunk(chunk);
+    return value;
+  }
+  /**
+   * Print debug message to the console.
+   *
+   * Is controlled by a flag to show or hide debug messages.
+   *
+   * @method debugMessage
+   * @param {Object} message Debug message to print to the console.
+   */
+  debugMessage(message) {
+    if (this.debug) {
+      console.log(message);
+    }
+  }
+}
+const M3DMAGIC = 19789;
+const MLIBMAGIC = 15786;
+const CMAGIC = 49725;
+const M3D_VERSION = 2;
+const COLOR_F = 16;
+const COLOR_24 = 17;
+const LIN_COLOR_24 = 18;
+const LIN_COLOR_F = 19;
+const INT_PERCENTAGE = 48;
+const FLOAT_PERCENTAGE = 49;
+const MDATA = 15677;
+const MESH_VERSION = 15678;
+const MASTER_SCALE = 256;
+const MAT_ENTRY = 45055;
+const MAT_NAME = 40960;
+const MAT_AMBIENT = 40976;
+const MAT_DIFFUSE = 40992;
+const MAT_SPECULAR = 41008;
+const MAT_SHININESS = 41024;
+const MAT_TRANSPARENCY = 41040;
+const MAT_TWO_SIDE = 41089;
+const MAT_ADDITIVE = 41091;
+const MAT_WIRE = 41093;
+const MAT_WIRE_SIZE = 41095;
+const MAT_TEXMAP = 41472;
+const MAT_OPACMAP = 41488;
+const MAT_BUMPMAP = 41520;
+const MAT_SPECMAP = 41476;
+const MAT_MAPNAME = 41728;
+const MAT_MAP_USCALE = 41812;
+const MAT_MAP_VSCALE = 41814;
+const MAT_MAP_UOFFSET = 41816;
+const MAT_MAP_VOFFSET = 41818;
+const NAMED_OBJECT = 16384;
+const N_TRI_OBJECT = 16640;
+const POINT_ARRAY = 16656;
+const FACE_ARRAY = 16672;
+const MSH_MAT_GROUP = 16688;
+const TEX_VERTS = 16704;
+const MESH_MATRIX = 16736;
+exports.TDSLoader = TDSLoader;
+//# sourceMappingURL=TDSLoader.cjs.map