feat: initialize project with core dependencies and game entry point

node_modules/three/examples/jsm/geometries/BoxLineGeometry.js

@@ -0,0 +1,92 @@
+import {
+	BufferGeometry,
+	Float32BufferAttribute
+} from 'three';
+
+/**
+ * A special type of box geometry intended for {@link LineSegments}.
+ *
+ * ```js
+ * const geometry = new THREE.BoxLineGeometry();
+ * const material = new THREE.LineBasicMaterial( { color: 0x00ff00 } );
+ * const lines = new THREE.LineSegments( geometry, material );
+ * scene.add( lines );
+ * ```
+ *
+ * @augments BufferGeometry
+ * @three_import import { BoxLineGeometry } from 'three/addons/geometries/BoxLineGeometry.js';
+ */
+class BoxLineGeometry extends BufferGeometry {
+
+	/**
+	 * Constructs a new box line geometry.
+	 *
+	 * @param {number} [width=1] - The width. That is, the length of the edges parallel to the X axis.
+	 * @param {number} [height=1] - The height. That is, the length of the edges parallel to the Y axis.
+	 * @param {number} [depth=1] - The depth. That is, the length of the edges parallel to the Z axis.
+	 * @param {number} [widthSegments=1] - Number of segmented rectangular sections along the width of the sides.
+	 * @param {number} [heightSegments=1] - Number of segmented rectangular sections along the height of the sides.
+	 * @param {number} [depthSegments=1] - Number of segmented rectangular sections along the depth of the sides.
+	 */
+	constructor( width = 1, height = 1, depth = 1, widthSegments = 1, heightSegments = 1, depthSegments = 1 ) {
+
+		super();
+
+		widthSegments = Math.floor( widthSegments );
+		heightSegments = Math.floor( heightSegments );
+		depthSegments = Math.floor( depthSegments );
+
+		const widthHalf = width / 2;
+		const heightHalf = height / 2;
+		const depthHalf = depth / 2;
+
+		const segmentWidth = width / widthSegments;
+		const segmentHeight = height / heightSegments;
+		const segmentDepth = depth / depthSegments;
+
+		const vertices = [];
+
+		let x = - widthHalf;
+		let y = - heightHalf;
+		let z = - depthHalf;
+
+		for ( let i = 0; i <= widthSegments; i ++ ) {
+
+			vertices.push( x, - heightHalf, - depthHalf, x, heightHalf, - depthHalf );
+			vertices.push( x, heightHalf, - depthHalf, x, heightHalf, depthHalf );
+			vertices.push( x, heightHalf, depthHalf, x, - heightHalf, depthHalf );
+			vertices.push( x, - heightHalf, depthHalf, x, - heightHalf, - depthHalf );
+
+			x += segmentWidth;
+
+		}
+
+		for ( let i = 0; i <= heightSegments; i ++ ) {
+
+			vertices.push( - widthHalf, y, - depthHalf, widthHalf, y, - depthHalf );
+			vertices.push( widthHalf, y, - depthHalf, widthHalf, y, depthHalf );
+			vertices.push( widthHalf, y, depthHalf, - widthHalf, y, depthHalf );
+			vertices.push( - widthHalf, y, depthHalf, - widthHalf, y, - depthHalf );
+
+			y += segmentHeight;
+
+		}
+
+		for ( let i = 0; i <= depthSegments; i ++ ) {
+
+			vertices.push( - widthHalf, - heightHalf, z, - widthHalf, heightHalf, z );
+			vertices.push( - widthHalf, heightHalf, z, widthHalf, heightHalf, z );
+			vertices.push( widthHalf, heightHalf, z, widthHalf, - heightHalf, z );
+			vertices.push( widthHalf, - heightHalf, z, - widthHalf, - heightHalf, z );
+
+			z += segmentDepth;
+
+		}
+
+		this.setAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
+
+	}
+
+}
+
+export { BoxLineGeometry };