Initial project import

node_modules/three/examples/jsm/loaders/ColladaLoader.js

@@ -0,0 +1,153 @@
+import {
+	FileLoader,
+	Loader,
+	LoaderUtils,
+	Scene,
+	TextureLoader
+} from 'three';
+
+import { TGALoader } from '../loaders/TGALoader.js';
+import { ColladaParser } from './collada/ColladaParser.js';
+import { ColladaComposer } from './collada/ColladaComposer.js';
+
+/**
+ * A loader for the Collada format.
+ *
+ * The Collada format is very complex so this loader only supports a subset of what
+ * is defined in the [official specification](https://www.khronos.org/files/collada_spec_1_5.pdf).
+ *
+ * Assets with a Z-UP coordinate system are transformed it into Y-UP by a simple rotation.
+ * The vertex data are not converted.
+ *
+ * ```js
+ * const loader = new ColladaLoader();
+ *
+ * const result = await loader.loadAsync( './models/collada/elf/elf.dae' );
+ * scene.add( result.scene );
+ * ```
+ *
+ * @augments Loader
+ * @three_import import { ColladaLoader } from 'three/addons/loaders/ColladaLoader.js';
+ */
+class ColladaLoader extends Loader {
+
+	/**
+	 * Starts loading from the given URL and passes the loaded Collada asset
+	 * to the `onLoad()` callback.
+	 *
+	 * @param {string} url - The path/URL of the file to be loaded. This can also be a data URI.
+	 * @param {function({scene:Group,animations:Array<AnimationClip>,kinematics:Object})} onLoad - Executed when the loading process has been finished.
+	 * @param {onProgressCallback} onProgress - Executed while the loading is in progress.
+	 * @param {onErrorCallback} onError - Executed when errors occur.
+	 */
+	load( url, onLoad, onProgress, onError ) {
+
+		const scope = this;
+
+		const path = ( scope.path === '' ) ? LoaderUtils.extractUrlBase( url ) : scope.path;
+
+		const loader = new FileLoader( scope.manager );
+		loader.setPath( scope.path );
+		loader.setRequestHeader( scope.requestHeader );
+		loader.setWithCredentials( scope.withCredentials );
+		loader.load( url, function ( text ) {
+
+			try {
+
+				onLoad( scope.parse( text, path ) );
+
+			} catch ( e ) {
+
+				if ( onError ) {
+
+					onError( e );
+
+				} else {
+
+					console.error( e );
+
+				}
+
+				scope.manager.itemError( url );
+
+			}
+
+		}, onProgress, onError );
+
+	}
+
+	/**
+	 * Parses the given Collada data and returns a result object holding the parsed scene,
+	 * an array of animation clips and kinematics.
+	 *
+	 * @param {string} text - The raw Collada data as a string.
+	 * @param {string} [path] - The asset path.
+	 * @return {?{scene:Group,animations:Array<AnimationClip>,kinematics:Object}} An object representing the parsed asset.
+	 */
+	parse( text, path ) {
+
+		if ( text.length === 0 ) {
+
+			return { scene: new Scene() };
+
+		}
+
+		// Parse XML to library data
+		const parser = new ColladaParser();
+		const parseResult = parser.parse( text );
+
+		if ( parseResult === null ) {
+
+			return null;
+
+		}
+
+		const { library, asset, collada } = parseResult;
+
+		// Setup texture loaders
+		const textureLoader = new TextureLoader( this.manager );
+		textureLoader.setPath( this.resourcePath || path ).setCrossOrigin( this.crossOrigin );
+
+		let tgaLoader;
+
+		if ( TGALoader ) {
+
+			tgaLoader = new TGALoader( this.manager );
+			tgaLoader.setPath( this.resourcePath || path );
+
+		}
+
+		// Compose Three.js objects from library data
+		const composer = new ColladaComposer( library, collada, textureLoader, tgaLoader );
+		const { scene, animations, kinematics } = composer.compose();
+
+		scene.animations = animations;
+
+		// Handle coordinate system conversion
+		if ( asset.upAxis === 'Z_UP' ) {
+
+			console.warn( 'THREE.ColladaLoader: You are loading an asset with a Z-UP coordinate system. The loader just rotates the asset to transform it into Y-UP. The vertex data are not converted, see #24289.' );
+			scene.rotation.set( - Math.PI / 2, 0, 0 );
+
+		}
+
+		// Apply unit scale
+		scene.scale.multiplyScalar( asset.unit );
+
+		return {
+			get animations() {
+
+				console.warn( 'THREE.ColladaLoader: Please access animations over scene.animations now.' );
+				return animations;
+
+			},
+			kinematics: kinematics,
+			library: library,
+			scene: scene
+		};
+
+	}
+
+}
+
+export { ColladaLoader };