Initial project import

node_modules/three-stdlib/loaders/OBJLoader.cjs

@@ -0,0 +1,488 @@
+"use strict";
+Object.defineProperty(exports, Symbol.toStringTag, { value: "Module" });
+const THREE = require("three");
+const _object_pattern = /^[og]\s*(.+)?/;
+const _material_library_pattern = /^mtllib /;
+const _material_use_pattern = /^usemtl /;
+const _map_use_pattern = /^usemap /;
+const _vA = /* @__PURE__ */ new THREE.Vector3();
+const _vB = /* @__PURE__ */ new THREE.Vector3();
+const _vC = /* @__PURE__ */ new THREE.Vector3();
+const _ab = /* @__PURE__ */ new THREE.Vector3();
+const _cb = /* @__PURE__ */ new THREE.Vector3();
+function ParserState() {
+  const state = {
+    objects: [],
+    object: {},
+    vertices: [],
+    normals: [],
+    colors: [],
+    uvs: [],
+    materials: {},
+    materialLibraries: [],
+    startObject: function(name, fromDeclaration) {
+      if (this.object && this.object.fromDeclaration === false) {
+        this.object.name = name;
+        this.object.fromDeclaration = fromDeclaration !== false;
+        return;
+      }
+      const previousMaterial = this.object && typeof this.object.currentMaterial === "function" ? this.object.currentMaterial() : void 0;
+      if (this.object && typeof this.object._finalize === "function") {
+        this.object._finalize(true);
+      }
+      this.object = {
+        name: name || "",
+        fromDeclaration: fromDeclaration !== false,
+        geometry: {
+          vertices: [],
+          normals: [],
+          colors: [],
+          uvs: [],
+          hasUVIndices: false
+        },
+        materials: [],
+        smooth: true,
+        startMaterial: function(name2, libraries) {
+          const previous = this._finalize(false);
+          if (previous && (previous.inherited || previous.groupCount <= 0)) {
+            this.materials.splice(previous.index, 1);
+          }
+          const material = {
+            index: this.materials.length,
+            name: name2 || "",
+            mtllib: Array.isArray(libraries) && libraries.length > 0 ? libraries[libraries.length - 1] : "",
+            smooth: previous !== void 0 ? previous.smooth : this.smooth,
+            groupStart: previous !== void 0 ? previous.groupEnd : 0,
+            groupEnd: -1,
+            groupCount: -1,
+            inherited: false,
+            clone: function(index) {
+              const cloned = {
+                index: typeof index === "number" ? index : this.index,
+                name: this.name,
+                mtllib: this.mtllib,
+                smooth: this.smooth,
+                groupStart: 0,
+                groupEnd: -1,
+                groupCount: -1,
+                inherited: false
+              };
+              cloned.clone = this.clone.bind(cloned);
+              return cloned;
+            }
+          };
+          this.materials.push(material);
+          return material;
+        },
+        currentMaterial: function() {
+          if (this.materials.length > 0) {
+            return this.materials[this.materials.length - 1];
+          }
+          return void 0;
+        },
+        _finalize: function(end) {
+          const lastMultiMaterial = this.currentMaterial();
+          if (lastMultiMaterial && lastMultiMaterial.groupEnd === -1) {
+            lastMultiMaterial.groupEnd = this.geometry.vertices.length / 3;
+            lastMultiMaterial.groupCount = lastMultiMaterial.groupEnd - lastMultiMaterial.groupStart;
+            lastMultiMaterial.inherited = false;
+          }
+          if (end && this.materials.length > 1) {
+            for (let mi = this.materials.length - 1; mi >= 0; mi--) {
+              if (this.materials[mi].groupCount <= 0) {
+                this.materials.splice(mi, 1);
+              }
+            }
+          }
+          if (end && this.materials.length === 0) {
+            this.materials.push({
+              name: "",
+              smooth: this.smooth
+            });
+          }
+          return lastMultiMaterial;
+        }
+      };
+      if (previousMaterial && previousMaterial.name && typeof previousMaterial.clone === "function") {
+        const declared = previousMaterial.clone(0);
+        declared.inherited = true;
+        this.object.materials.push(declared);
+      }
+      this.objects.push(this.object);
+    },
+    finalize: function() {
+      if (this.object && typeof this.object._finalize === "function") {
+        this.object._finalize(true);
+      }
+    },
+    parseVertexIndex: function(value, len) {
+      const index = parseInt(value, 10);
+      return (index >= 0 ? index - 1 : index + len / 3) * 3;
+    },
+    parseNormalIndex: function(value, len) {
+      const index = parseInt(value, 10);
+      return (index >= 0 ? index - 1 : index + len / 3) * 3;
+    },
+    parseUVIndex: function(value, len) {
+      const index = parseInt(value, 10);
+      return (index >= 0 ? index - 1 : index + len / 2) * 2;
+    },
+    addVertex: function(a, b, c) {
+      const src = this.vertices;
+      const dst = this.object.geometry.vertices;
+      dst.push(src[a + 0], src[a + 1], src[a + 2]);
+      dst.push(src[b + 0], src[b + 1], src[b + 2]);
+      dst.push(src[c + 0], src[c + 1], src[c + 2]);
+    },
+    addVertexPoint: function(a) {
+      const src = this.vertices;
+      const dst = this.object.geometry.vertices;
+      dst.push(src[a + 0], src[a + 1], src[a + 2]);
+    },
+    addVertexLine: function(a) {
+      const src = this.vertices;
+      const dst = this.object.geometry.vertices;
+      dst.push(src[a + 0], src[a + 1], src[a + 2]);
+    },
+    addNormal: function(a, b, c) {
+      const src = this.normals;
+      const dst = this.object.geometry.normals;
+      dst.push(src[a + 0], src[a + 1], src[a + 2]);
+      dst.push(src[b + 0], src[b + 1], src[b + 2]);
+      dst.push(src[c + 0], src[c + 1], src[c + 2]);
+    },
+    addFaceNormal: function(a, b, c) {
+      const src = this.vertices;
+      const dst = this.object.geometry.normals;
+      _vA.fromArray(src, a);
+      _vB.fromArray(src, b);
+      _vC.fromArray(src, c);
+      _cb.subVectors(_vC, _vB);
+      _ab.subVectors(_vA, _vB);
+      _cb.cross(_ab);
+      _cb.normalize();
+      dst.push(_cb.x, _cb.y, _cb.z);
+      dst.push(_cb.x, _cb.y, _cb.z);
+      dst.push(_cb.x, _cb.y, _cb.z);
+    },
+    addColor: function(a, b, c) {
+      const src = this.colors;
+      const dst = this.object.geometry.colors;
+      if (src[a] !== void 0)
+        dst.push(src[a + 0], src[a + 1], src[a + 2]);
+      if (src[b] !== void 0)
+        dst.push(src[b + 0], src[b + 1], src[b + 2]);
+      if (src[c] !== void 0)
+        dst.push(src[c + 0], src[c + 1], src[c + 2]);
+    },
+    addUV: function(a, b, c) {
+      const src = this.uvs;
+      const dst = this.object.geometry.uvs;
+      dst.push(src[a + 0], src[a + 1]);
+      dst.push(src[b + 0], src[b + 1]);
+      dst.push(src[c + 0], src[c + 1]);
+    },
+    addDefaultUV: function() {
+      const dst = this.object.geometry.uvs;
+      dst.push(0, 0);
+      dst.push(0, 0);
+      dst.push(0, 0);
+    },
+    addUVLine: function(a) {
+      const src = this.uvs;
+      const dst = this.object.geometry.uvs;
+      dst.push(src[a + 0], src[a + 1]);
+    },
+    addFace: function(a, b, c, ua, ub, uc, na, nb, nc) {
+      const vLen = this.vertices.length;
+      let ia = this.parseVertexIndex(a, vLen);
+      let ib = this.parseVertexIndex(b, vLen);
+      let ic = this.parseVertexIndex(c, vLen);
+      this.addVertex(ia, ib, ic);
+      this.addColor(ia, ib, ic);
+      if (na !== void 0 && na !== "") {
+        const nLen = this.normals.length;
+        ia = this.parseNormalIndex(na, nLen);
+        ib = this.parseNormalIndex(nb, nLen);
+        ic = this.parseNormalIndex(nc, nLen);
+        this.addNormal(ia, ib, ic);
+      } else {
+        this.addFaceNormal(ia, ib, ic);
+      }
+      if (ua !== void 0 && ua !== "") {
+        const uvLen = this.uvs.length;
+        ia = this.parseUVIndex(ua, uvLen);
+        ib = this.parseUVIndex(ub, uvLen);
+        ic = this.parseUVIndex(uc, uvLen);
+        this.addUV(ia, ib, ic);
+        this.object.geometry.hasUVIndices = true;
+      } else {
+        this.addDefaultUV();
+      }
+    },
+    addPointGeometry: function(vertices) {
+      this.object.geometry.type = "Points";
+      const vLen = this.vertices.length;
+      for (let vi = 0, l = vertices.length; vi < l; vi++) {
+        const index = this.parseVertexIndex(vertices[vi], vLen);
+        this.addVertexPoint(index);
+        this.addColor(index);
+      }
+    },
+    addLineGeometry: function(vertices, uvs) {
+      this.object.geometry.type = "Line";
+      const vLen = this.vertices.length;
+      const uvLen = this.uvs.length;
+      for (let vi = 0, l = vertices.length; vi < l; vi++) {
+        this.addVertexLine(this.parseVertexIndex(vertices[vi], vLen));
+      }
+      for (let uvi = 0, l = uvs.length; uvi < l; uvi++) {
+        this.addUVLine(this.parseUVIndex(uvs[uvi], uvLen));
+      }
+    }
+  };
+  state.startObject("", false);
+  return state;
+}
+class OBJLoader extends THREE.Loader {
+  constructor(manager) {
+    super(manager);
+    this.materials = null;
+  }
+  load(url, onLoad, onProgress, onError) {
+    const scope = this;
+    const loader = new THREE.FileLoader(this.manager);
+    loader.setPath(this.path);
+    loader.setRequestHeader(this.requestHeader);
+    loader.setWithCredentials(this.withCredentials);
+    loader.load(
+      url,
+      function(text) {
+        try {
+          onLoad(scope.parse(text));
+        } catch (e) {
+          if (onError) {
+            onError(e);
+          } else {
+            console.error(e);
+          }
+          scope.manager.itemError(url);
+        }
+      },
+      onProgress,
+      onError
+    );
+  }
+  setMaterials(materials) {
+    this.materials = materials;
+    return this;
+  }
+  parse(text) {
+    const state = new ParserState();
+    if (text.indexOf("\r\n") !== -1) {
+      text = text.replace(/\r\n/g, "\n");
+    }
+    if (text.indexOf("\\\n") !== -1) {
+      text = text.replace(/\\\n/g, "");
+    }
+    const lines = text.split("\n");
+    let line = "", lineFirstChar = "";
+    let lineLength = 0;
+    let result = [];
+    const trimLeft = typeof "".trimLeft === "function";
+    for (let i = 0, l = lines.length; i < l; i++) {
+      line = lines[i];
+      line = trimLeft ? line.trimLeft() : line.trim();
+      lineLength = line.length;
+      if (lineLength === 0)
+        continue;
+      lineFirstChar = line.charAt(0);
+      if (lineFirstChar === "#")
+        continue;
+      if (lineFirstChar === "v") {
+        const data = line.split(/\s+/);
+        switch (data[0]) {
+          case "v":
+            state.vertices.push(parseFloat(data[1]), parseFloat(data[2]), parseFloat(data[3]));
+            if (data.length >= 7) {
+              state.colors.push(parseFloat(data[4]), parseFloat(data[5]), parseFloat(data[6]));
+            } else {
+              state.colors.push(void 0, void 0, void 0);
+            }
+            break;
+          case "vn":
+            state.normals.push(parseFloat(data[1]), parseFloat(data[2]), parseFloat(data[3]));
+            break;
+          case "vt":
+            state.uvs.push(parseFloat(data[1]), parseFloat(data[2]));
+            break;
+        }
+      } else if (lineFirstChar === "f") {
+        const lineData = line.substr(1).trim();
+        const vertexData = lineData.split(/\s+/);
+        const faceVertices = [];
+        for (let j = 0, jl = vertexData.length; j < jl; j++) {
+          const vertex = vertexData[j];
+          if (vertex.length > 0) {
+            const vertexParts = vertex.split("/");
+            faceVertices.push(vertexParts);
+          }
+        }
+        const v1 = faceVertices[0];
+        for (let j = 1, jl = faceVertices.length - 1; j < jl; j++) {
+          const v2 = faceVertices[j];
+          const v3 = faceVertices[j + 1];
+          state.addFace(v1[0], v2[0], v3[0], v1[1], v2[1], v3[1], v1[2], v2[2], v3[2]);
+        }
+      } else if (lineFirstChar === "l") {
+        const lineParts = line.substring(1).trim().split(" ");
+        let lineVertices = [];
+        const lineUVs = [];
+        if (line.indexOf("/") === -1) {
+          lineVertices = lineParts;
+        } else {
+          for (let li = 0, llen = lineParts.length; li < llen; li++) {
+            const parts = lineParts[li].split("/");
+            if (parts[0] !== "")
+              lineVertices.push(parts[0]);
+            if (parts[1] !== "")
+              lineUVs.push(parts[1]);
+          }
+        }
+        state.addLineGeometry(lineVertices, lineUVs);
+      } else if (lineFirstChar === "p") {
+        const lineData = line.substr(1).trim();
+        const pointData = lineData.split(" ");
+        state.addPointGeometry(pointData);
+      } else if ((result = _object_pattern.exec(line)) !== null) {
+        const name = (" " + result[0].substr(1).trim()).substr(1);
+        state.startObject(name);
+      } else if (_material_use_pattern.test(line)) {
+        state.object.startMaterial(line.substring(7).trim(), state.materialLibraries);
+      } else if (_material_library_pattern.test(line)) {
+        state.materialLibraries.push(line.substring(7).trim());
+      } else if (_map_use_pattern.test(line)) {
+        console.warn(
+          'THREE.OBJLoader: Rendering identifier "usemap" not supported. Textures must be defined in MTL files.'
+        );
+      } else if (lineFirstChar === "s") {
+        result = line.split(" ");
+        if (result.length > 1) {
+          const value = result[1].trim().toLowerCase();
+          state.object.smooth = value !== "0" && value !== "off";
+        } else {
+          state.object.smooth = true;
+        }
+        const material = state.object.currentMaterial();
+        if (material)
+          material.smooth = state.object.smooth;
+      } else {
+        if (line === "\0")
+          continue;
+        console.warn('THREE.OBJLoader: Unexpected line: "' + line + '"');
+      }
+    }
+    state.finalize();
+    const container = new THREE.Group();
+    container.materialLibraries = [].concat(state.materialLibraries);
+    const hasPrimitives = !(state.objects.length === 1 && state.objects[0].geometry.vertices.length === 0);
+    if (hasPrimitives === true) {
+      for (let i = 0, l = state.objects.length; i < l; i++) {
+        const object = state.objects[i];
+        const geometry = object.geometry;
+        const materials = object.materials;
+        const isLine = geometry.type === "Line";
+        const isPoints = geometry.type === "Points";
+        let hasVertexColors = false;
+        if (geometry.vertices.length === 0)
+          continue;
+        const buffergeometry = new THREE.BufferGeometry();
+        buffergeometry.setAttribute("position", new THREE.Float32BufferAttribute(geometry.vertices, 3));
+        if (geometry.normals.length > 0) {
+          buffergeometry.setAttribute("normal", new THREE.Float32BufferAttribute(geometry.normals, 3));
+        }
+        if (geometry.colors.length > 0) {
+          hasVertexColors = true;
+          buffergeometry.setAttribute("color", new THREE.Float32BufferAttribute(geometry.colors, 3));
+        }
+        if (geometry.hasUVIndices === true) {
+          buffergeometry.setAttribute("uv", new THREE.Float32BufferAttribute(geometry.uvs, 2));
+        }
+        const createdMaterials = [];
+        for (let mi = 0, miLen = materials.length; mi < miLen; mi++) {
+          const sourceMaterial = materials[mi];
+          const materialHash = sourceMaterial.name + "_" + sourceMaterial.smooth + "_" + hasVertexColors;
+          let material = state.materials[materialHash];
+          if (this.materials !== null) {
+            material = this.materials.create(sourceMaterial.name);
+            if (isLine && material && !(material instanceof THREE.LineBasicMaterial)) {
+              const materialLine = new THREE.LineBasicMaterial();
+              THREE.Material.prototype.copy.call(materialLine, material);
+              materialLine.color.copy(material.color);
+              material = materialLine;
+            } else if (isPoints && material && !(material instanceof THREE.PointsMaterial)) {
+              const materialPoints = new THREE.PointsMaterial({ size: 10, sizeAttenuation: false });
+              THREE.Material.prototype.copy.call(materialPoints, material);
+              materialPoints.color.copy(material.color);
+              materialPoints.map = material.map;
+              material = materialPoints;
+            }
+          }
+          if (material === void 0) {
+            if (isLine) {
+              material = new THREE.LineBasicMaterial();
+            } else if (isPoints) {
+              material = new THREE.PointsMaterial({ size: 1, sizeAttenuation: false });
+            } else {
+              material = new THREE.MeshPhongMaterial();
+            }
+            material.name = sourceMaterial.name;
+            material.flatShading = sourceMaterial.smooth ? false : true;
+            material.vertexColors = hasVertexColors;
+            state.materials[materialHash] = material;
+          }
+          createdMaterials.push(material);
+        }
+        let mesh;
+        if (createdMaterials.length > 1) {
+          for (let mi = 0, miLen = materials.length; mi < miLen; mi++) {
+            const sourceMaterial = materials[mi];
+            buffergeometry.addGroup(sourceMaterial.groupStart, sourceMaterial.groupCount, mi);
+          }
+          if (isLine) {
+            mesh = new THREE.LineSegments(buffergeometry, createdMaterials);
+          } else if (isPoints) {
+            mesh = new THREE.Points(buffergeometry, createdMaterials);
+          } else {
+            mesh = new THREE.Mesh(buffergeometry, createdMaterials);
+          }
+        } else {
+          if (isLine) {
+            mesh = new THREE.LineSegments(buffergeometry, createdMaterials[0]);
+          } else if (isPoints) {
+            mesh = new THREE.Points(buffergeometry, createdMaterials[0]);
+          } else {
+            mesh = new THREE.Mesh(buffergeometry, createdMaterials[0]);
+          }
+        }
+        mesh.name = object.name;
+        container.add(mesh);
+      }
+    } else {
+      if (state.vertices.length > 0) {
+        const material = new THREE.PointsMaterial({ size: 1, sizeAttenuation: false });
+        const buffergeometry = new THREE.BufferGeometry();
+        buffergeometry.setAttribute("position", new THREE.Float32BufferAttribute(state.vertices, 3));
+        if (state.colors.length > 0 && state.colors[0] !== void 0) {
+          buffergeometry.setAttribute("color", new THREE.Float32BufferAttribute(state.colors, 3));
+          material.vertexColors = true;
+        }
+        const points = new THREE.Points(buffergeometry, material);
+        container.add(points);
+      }
+    }
+    return container;
+  }
+}
+exports.OBJLoader = OBJLoader;
+//# sourceMappingURL=OBJLoader.cjs.map