feat: initialize project with core dependencies and game entry point

node_modules/three/examples/jsm/math/Capsule.js

@@ -0,0 +1,159 @@
+import {
+	Vector3
+} from 'three';
+
+/**
+ * A capsule is essentially a cylinder with hemispherical caps at both ends.
+ * It can be thought of as a swept sphere, where a sphere is moved along a line segment.
+ *
+ * Capsules are often used as bounding volumes (next to AABBs and bounding spheres).
+ *
+ * @three_import import { Capsule } from 'three/addons/math/Capsule.js';
+ */
+class Capsule {
+
+	/**
+	 * Constructs a new capsule.
+	 *
+	 * @param {Vector3} [start] - The start vector.
+	 * @param {Vector3} [end] - The end vector.
+	 * @param {number} [radius=1] - The capsule's radius.
+	 */
+	constructor( start = new Vector3( 0, 0, 0 ), end = new Vector3( 0, 1, 0 ), radius = 1 ) {
+
+		/**
+		 * The start vector.
+		 *
+		 * @type {Vector3}
+		 */
+		this.start = start;
+
+		/**
+		 * The end vector.
+		 *
+		 * @type {Vector3}
+		 */
+		this.end = end;
+
+		/**
+		 * The capsule's radius.
+		 *
+		 * @type {number}
+		 * @default 1
+		 */
+		this.radius = radius;
+
+	}
+
+	/**
+	 * Returns a new capsule with copied values from this instance.
+	 *
+	 * @return {Capsule} A clone of this instance.
+	 */
+	clone() {
+
+		return new this.constructor().copy( this );
+
+	}
+
+	/**
+	 * Sets the capsule components to the given values.
+	 * Please note that this method only copies the values from the given objects.
+	 *
+	 * @param {Vector3} start - The start vector.
+	 * @param {Vector3} end - The end vector
+	 * @param {number} radius - The capsule's radius.
+	 * @return {Capsule} A reference to this capsule.
+	 */
+	set( start, end, radius ) {
+
+		this.start.copy( start );
+		this.end.copy( end );
+		this.radius = radius;
+
+		return this;
+
+	}
+
+	/**
+	 * Copies the values of the given capsule to this instance.
+	 *
+	 * @param {Capsule} capsule - The capsule to copy.
+	 * @return {Capsule} A reference to this capsule.
+	 */
+	copy( capsule ) {
+
+		this.start.copy( capsule.start );
+		this.end.copy( capsule.end );
+		this.radius = capsule.radius;
+
+		return this;
+
+	}
+
+	/**
+	 * Returns the center point of this capsule.
+	 *
+	 * @param {Vector3} target - The target vector that is used to store the method's result.
+	 * @return {Vector3} The center point.
+	 */
+	getCenter( target ) {
+
+		return target.copy( this.end ).add( this.start ).multiplyScalar( 0.5 );
+
+	}
+
+	/**
+	 * Adds the given offset to this capsule, effectively moving it in 3D space.
+	 *
+	 * @param {Vector3} v - The offset that should be used to translate the capsule.
+	 * @return {Capsule} A reference to this capsule.
+	 */
+	translate( v ) {
+
+		this.start.add( v );
+		this.end.add( v );
+
+		return this;
+
+	}
+
+	/**
+	 * Returns `true` if the given bounding box intersects with this capsule.
+	 *
+	 * @param {Box3} box - The bounding box to test.
+	 * @return {boolean} Whether the given bounding box intersects with this capsule.
+	 */
+	intersectsBox( box ) {
+
+		return (
+			checkAABBAxis(
+				this.start.x, this.start.y, this.end.x, this.end.y,
+				box.min.x, box.max.x, box.min.y, box.max.y,
+				this.radius ) &&
+			checkAABBAxis(
+				this.start.x, this.start.z, this.end.x, this.end.z,
+				box.min.x, box.max.x, box.min.z, box.max.z,
+				this.radius ) &&
+			checkAABBAxis(
+				this.start.y, this.start.z, this.end.y, this.end.z,
+				box.min.y, box.max.y, box.min.z, box.max.z,
+				this.radius )
+		);
+
+	}
+
+}
+
+function checkAABBAxis( p1x, p1y, p2x, p2y, minx, maxx, miny, maxy, radius ) {
+
+	return (
+		( minx - p1x < radius || minx - p2x < radius ) &&
+		( p1x - maxx < radius || p2x - maxx < radius ) &&
+		( miny - p1y < radius || miny - p2y < radius ) &&
+		( p1y - maxy < radius || p2y - maxy < radius )
+	);
+
+}
+
+export { Capsule };