How to use the raylib.Vector3 function in raylib

********************************************************************************************/

const r = require('raylib')

// Initialization
//--------------------------------------------------------------------------------------
const screenWidth = 800
const screenHeight = 450

r.InitWindow(screenWidth, screenHeight, "raylib [models] example - drawing billboards")

// Define the camera to look into our 3d world
const camera = r.Camera()
camera.position = r.Vector3(5.0, 4.0, 5.0)
camera.target = r.Vector3(0.0, 2.0, 0.0)
camera.up = r.Vector3(0.0, 1.0, 0.0)
camera.fovy = 45.0
camera.type = r.CAMERA_PERSPECTIVE

const bill = r.LoadTexture(__dirname + "/resources/billboard.png")     // Our texture billboard
const billPosition = r.Vector3(0.0, 2.0, 0.0)                 // Position where draw billboard

r.SetCameraMode(camera, r.CAMERA_ORBITAL)  // Set an orbital camera mode

r.SetTargetFPS(60)                       // Set our game to run at 60 frames-per-second
//--------------------------------------------------------------------------------------

// Main game loop
while (!r.WindowShouldClose())            // Detect window close button or ESC key
{
    // Update
    //----------------------------------------------------------------------------------

*
********************************************************************************************/

const r = require('raylib')

// Initialization
//--------------------------------------------------------------------------------------
const screenWidth = 800;
const screenHeight = 450;

r.InitWindow(screenWidth, screenHeight, "raylib [core] example - 3d camera free")

// Define the camera to look into our 3d world
const camera = r.Camera(
  r.Vector3(10, 10, 10),
  r.Vector3(0, 0, 0),
  r.Vector3(0, 1, 0),
  45,
  r.CAMERA_PERSPECTIVE
)

const cubePosition = r.Vector3()
let cubeScreenPosition = r.Vector2()

r.SetCameraMode(camera, r.CAMERA_FREE); // Set a free camera mode

r.SetTargetFPS(60);                   // Set our game to run at 60 frames-per-second
//--------------------------------------------------------------------------------------

// Main game loop
while (!r.WindowShouldClose())        // Detect window close button or ESC key
{

*   Copyright (c) 2015 Ramon Santamaria (@raysan5)
*
********************************************************************************************/

const r = require('raylib')

// Initialization
//--------------------------------------------------------------------------------------
const screenWidth = 800;
const screenHeight = 450;

r.InitWindow(screenWidth, screenHeight, "raylib [core] example - 3d camera free")

// Define the camera to look into our 3d world
const camera = r.Camera(
  r.Vector3(10, 10, 10),
  r.Vector3(0, 0, 0),
  r.Vector3(0, 1, 0),
  45,
  r.CAMERA_PERSPECTIVE
)

const cubePosition = r.Vector3()
let cubeScreenPosition = r.Vector2()

r.SetCameraMode(camera, r.CAMERA_FREE); // Set a free camera mode

r.SetTargetFPS(60);                   // Set our game to run at 60 frames-per-second
//--------------------------------------------------------------------------------------

// Main game loop
while (!r.WindowShouldClose())        // Detect window close button or ESC key

********************************************************************************************/

const r = require('raylib')

// Initialization
//--------------------------------------------------------------------------------------
const screenWidth = 800;
const screenHeight = 450;

r.InitWindow(screenWidth, screenHeight, "raylib [core] example - 3d camera free")

// Define the camera to look into our 3d world
const camera = r.Camera(
  r.Vector3(10, 10, 10),
  r.Vector3(0, 0, 0),
  r.Vector3(0, 1, 0),
  45,
  r.CAMERA_PERSPECTIVE
)

const cubePosition = r.Vector3()
let cubeScreenPosition = r.Vector2()

r.SetCameraMode(camera, r.CAMERA_FREE); // Set a free camera mode

r.SetTargetFPS(60);                   // Set our game to run at 60 frames-per-second
//--------------------------------------------------------------------------------------

// Main game loop
while (!r.WindowShouldClose())        // Detect window close button or ESC key
{
    // Update

let cubeScreenPosition = r.Vector2()

r.SetCameraMode(camera, r.CAMERA_FREE); // Set a free camera mode

r.SetTargetFPS(60);                   // Set our game to run at 60 frames-per-second
//--------------------------------------------------------------------------------------

// Main game loop
while (!r.WindowShouldClose())        // Detect window close button or ESC key
{
    // Update
    //----------------------------------------------------------------------------------
    r.UpdateCamera(camera);          // Update camera

    // Calculate cube screen space position (with a little offset to be in top)
    const cubePositionVector = r.Vector3(cubePosition.x, cubePosition.y + 2.5, cubePosition.z)
    cubeScreenPosition = r.GetWorldToScreen(cubePositionVector, camera)
    //----------------------------------------------------------------------------------

    // Draw
    //----------------------------------------------------------------------------------
    r.BeginDrawing()

        r.ClearBackground(r.RAYWHITE)

        r.BeginMode3D(camera)

            r.DrawCube(cubePosition, 2, 2, 2, r.RED);
            r.DrawCubeWires(cubePosition, 2, 2, 2, r.MAROON);

            r.DrawGrid(10, 1);

*
********************************************************************************************/

const r = require('raylib')

// Initialization
//--------------------------------------------------------------------------------------
const screenWidth = 800
const screenHeight = 450

r.InitWindow(screenWidth, screenHeight, "raylib [models] example - drawing billboards")

// Define the camera to look into our 3d world
const camera = r.Camera()
camera.position = r.Vector3(5.0, 4.0, 5.0)
camera.target = r.Vector3(0.0, 2.0, 0.0)
camera.up = r.Vector3(0.0, 1.0, 0.0)
camera.fovy = 45.0
camera.type = r.CAMERA_PERSPECTIVE

const bill = r.LoadTexture(__dirname + "/resources/billboard.png")     // Our texture billboard
const billPosition = r.Vector3(0.0, 2.0, 0.0)                 // Position where draw billboard

r.SetCameraMode(camera, r.CAMERA_ORBITAL)  // Set an orbital camera mode

r.SetTargetFPS(60)                       // Set our game to run at 60 frames-per-second
//--------------------------------------------------------------------------------------

// Main game loop
while (!r.WindowShouldClose())            // Detect window close button or ESC key
{
    // Update

//--------------------------------------------------------------------------------------
const screenWidth = 800
const screenHeight = 450

r.InitWindow(screenWidth, screenHeight, "raylib [models] example - drawing billboards")

// Define the camera to look into our 3d world
const camera = r.Camera()
camera.position = r.Vector3(5.0, 4.0, 5.0)
camera.target = r.Vector3(0.0, 2.0, 0.0)
camera.up = r.Vector3(0.0, 1.0, 0.0)
camera.fovy = 45.0
camera.type = r.CAMERA_PERSPECTIVE

const bill = r.LoadTexture(__dirname + "/resources/billboard.png")     // Our texture billboard
const billPosition = r.Vector3(0.0, 2.0, 0.0)                 // Position where draw billboard

r.SetCameraMode(camera, r.CAMERA_ORBITAL)  // Set an orbital camera mode

r.SetTargetFPS(60)                       // Set our game to run at 60 frames-per-second
//--------------------------------------------------------------------------------------

// Main game loop
while (!r.WindowShouldClose())            // Detect window close button or ESC key
{
    // Update
    //----------------------------------------------------------------------------------
    //r.UpdateCamera(camera);              // Update camera
    //----------------------------------------------------------------------------------

    // Draw
    //----------------------------------------------------------------------------------