Move a 3D character controller

import { Script, Vec3, createApp, f32 } from "@ignifx/core";import { defineInputActions, input } from "@ignifx/input";import { BoxCollider, CharacterController, physics } from "@ignifx/physics";import type { ScriptCallbacks } from "@ignifx/core";/** Walks and jumps a `CharacterController` from the `move` and `jump` actions. */class CharacterMotor  extends Script.define({ speed: f32(4), jumpSpeed: f32(6), coyoteSeconds: f32(0.12), gravity: f32(-18) })  implements ScriptCallbacks{  static typeId = "recipes/CharacterMotor";  #controller: CharacterController | null = null;  #verticalSpeed = 0;  #airborneSeconds = Number.POSITIVE_INFINITY;  readonly #displacement = new Vec3();  awake(): void {    this.#controller = this.entity.requireComponent(CharacterController);  }  fixedUpdate(dt: number): void {    const controller = this.#controller;    if (controller === null) {      return;    }    this.#airborneSeconds = controller.isGrounded ? 0 : this.#airborneSeconds + dt;    this.#verticalSpeed = controller.isGrounded ? Math.max(this.#verticalSpeed, 0) : this.#verticalSpeed;    if (this.app.input.actions.get("jump").wasPressedThisFrame && this.#airborneSeconds <= this.coyoteSeconds) {      this.#verticalSpeed = this.jumpSpeed;      // Spend the window, so one press is one jump.      this.#airborneSeconds = Number.POSITIVE_INFINITY;    }    this.#verticalSpeed += this.gravity * dt;    const move = this.app.input.actions.get("move").vector;    this.#displacement.set(move.x * this.speed * dt, this.#verticalSpeed * dt, move.y * this.speed * dt);    controller.move(this.#displacement);  }}const wasd = {  composite: "2DVector",  up: "<Keyboard>/w",  down: "<Keyboard>/s",  left: "<Keyboard>/a",  right: "<Keyboard>/d",};const app = await createApp({ headless: true, extensions: [physics(), input()] });app.registerComponents([CharacterMotor]);app.input.loadActions(  defineInputActions({    maps: [      {        name: "Player",        actions: [          { name: "move", type: "vector2", bindings: [wasd] },          { name: "jump", bindings: [{ path: "<Keyboard>/space" }] },        ],      },    ],  }),);// A collider with no `Rigidbody` is placed once as a static body; moving it later logs IGX-0901.app.world.createEntity("Floor", { position: { x: 0, y: -0.5, z: 0 } }).addComponent(BoxCollider, {  size: { x: 40, y: 1, z: 40 },});const hero = app.world.createEntity("Hero", { position: { x: 0, y: 1, z: 0 } });hero.addComponent(CharacterController, { height: 1.8, radius: 0.35, slopeLimit: 45 });hero.addComponent(CharacterMotor);await app.start();app.input.simulate({ "<Keyboard>/w": 1, "<Keyboard>/space": 1 });for (let step = 0; step < 60; step += 1) {  app.step(1 / 60);}app.log.info("hero y, z:", hero.transform.position.y, hero.transform.position.z);app.dispose();