feat: initialize project with core dependencies and game entry point

node_modules/three/examples/jsm/helpers/RectAreaLightHelper.js

@@ -0,0 +1,118 @@
+import {
+	BackSide,
+	BufferGeometry,
+	Float32BufferAttribute,
+	Line,
+	LineBasicMaterial,
+	Mesh,
+	MeshBasicMaterial
+} from 'three';
+
+/**
+ * Creates a visual aid for rect area lights.
+ *
+ * `RectAreaLightHelper` must be added as a child of the light.
+ *
+ * ```js
+ * const light = new THREE.RectAreaLight( 0xffffbb, 1.0, 5, 5 );
+ * const helper = new RectAreaLightHelper( light );
+ * light.add( helper );
+ * ```
+ *
+ * @augments Line
+ * @three_import import { RectAreaLightHelper } from 'three/addons/helpers/RectAreaLightHelper.js';
+ */
+class RectAreaLightHelper extends Line {
+
+	/**
+	 * Constructs a new rect area light helper.
+	 *
+	 * @param {RectAreaLight} light - The light to visualize.
+	 * @param {number|Color|string} [color] - The helper's color.
+	 * If this is not the set, the helper will take the color of the light.
+	 */
+	constructor( light, color ) {
+
+		const positions = [ 1, 1, 0, - 1, 1, 0, - 1, - 1, 0, 1, - 1, 0, 1, 1, 0 ];
+
+		const geometry = new BufferGeometry();
+		geometry.setAttribute( 'position', new Float32BufferAttribute( positions, 3 ) );
+		geometry.computeBoundingSphere();
+
+		const material = new LineBasicMaterial( { fog: false } );
+
+		super( geometry, material );
+
+		/**
+		 * The light to visualize.
+		 *
+		 * @type {RectAreaLight}
+		 */
+		this.light = light;
+
+		/**
+		 * The helper's color. If `undefined`, the helper will take the color of the light.
+		 *
+		 * @type {number|Color|string|undefined}
+		 */
+		this.color = color;
+
+		this.type = 'RectAreaLightHelper';
+
+		//
+
+		const positions2 = [ 1, 1, 0, - 1, 1, 0, - 1, - 1, 0, 1, 1, 0, - 1, - 1, 0, 1, - 1, 0 ];
+
+		const geometry2 = new BufferGeometry();
+		geometry2.setAttribute( 'position', new Float32BufferAttribute( positions2, 3 ) );
+		geometry2.computeBoundingSphere();
+
+		this.add( new Mesh( geometry2, new MeshBasicMaterial( { side: BackSide, fog: false } ) ) );
+
+	}
+
+	updateMatrixWorld() {
+
+		this.scale.set( 0.5 * this.light.width, 0.5 * this.light.height, 1 );
+
+		if ( this.color !== undefined ) {
+
+			this.material.color.set( this.color );
+			this.children[ 0 ].material.color.set( this.color );
+
+		} else {
+
+			this.material.color.copy( this.light.color ).multiplyScalar( this.light.intensity );
+
+			// prevent hue shift
+			const c = this.material.color;
+			const max = Math.max( c.r, c.g, c.b );
+			if ( max > 1 ) c.multiplyScalar( 1 / max );
+
+			this.children[ 0 ].material.color.copy( this.material.color );
+
+		}
+
+		// ignore world scale on light
+		this.matrixWorld.extractRotation( this.light.matrixWorld ).scale( this.scale ).copyPosition( this.light.matrixWorld );
+
+		this.children[ 0 ].matrixWorld.copy( this.matrixWorld );
+
+	}
+
+	/**
+	 * Frees the GPU-related resources allocated by this instance. Call this
+	 * method whenever this instance is no longer used in your app.
+	 */
+	dispose() {
+
+		this.geometry.dispose();
+		this.material.dispose();
+		this.children[ 0 ].geometry.dispose();
+		this.children[ 0 ].material.dispose();
+
+	}
+
+}
+
+export { RectAreaLightHelper };