let assetLoader;

let gameStateManager;

let soundProcessor;

let faceTracker;

let dataManager;

let soundManager;

let configMenu;

let assets;

​

// Global Variables for face detection

let video;

let faces;

let faceMesh;

let options = { maxFaces: 1, refineLandmarks: false, flipHorizontal: true };

​

// A global game object to track overall game state and instances

let game = {

  score: 0,

  player: null,

  objects: [],

  enemies: [],

  laserBeams: [],

};

​

// Preload function to load all assets before setup()

function preload() {

  assetLoader = new AssetLoader();

  assetLoader.loadModels();

  assetLoader.loadTextures();

  assetLoader.loadSounds();

  assetLoader.loadFonts();

  // Initializes the FaceMesh model.

  faceMesh = ml5.faceMesh(options);

}

​

// Setup function initializes game components after assets are loaded

function setup() {

  createCanvas(windowWidth, windowHeight, WEBGL);

  noStroke();

​

  // Initializes the video capture and hide it

  video = createCapture(VIDEO);

  video.size(640, 480);

  video.hide();

  // Start detecting faces from the webcam video

  faceMesh.detectStart(video, gotFaces);

  // Assign assetLoader to global assets variable

  assets = assetLoader;

​

  // Verify that critical assets are loaded

  if (

    !assets.models.playerShip1 ||

    !assets.textures.background1 ||

    !assets.sounds.backgroundMusic

  ) {

    console.error("Critical assets failed to load. Please check asset paths.");

    noLoop(); // Stop the sketch if assets are missing

    return;

  } else {

    console.log('Assets successfully loaded!');

  }

​

  // Initialize Sound Manager with loaded sounds

  soundManager = new SoundManager();

  soundManager.loadSounds(assets);

​

  // Initialize Data Manager and load existing game data

  dataManager = new DataManager();

  dataManager.loadGameData();

​

  // Initialize Face Tracker for head movement detection

  faceTracker = new FaceTracker();

  faceTracker.init();

​

  // Initialize Sound Processor for ambient sound detection

  soundProcessor = new SoundProcessor();

  soundProcessor.init();

​

  // Initialize Game State Manager to handle game flow

  gameStateManager = new GameStateManager();

​

  // Access ConfigMenu instance for spaceship and background selections

  configMenu = gameStateManager.states.ConfigMenu;

​

  // Initialize HUD (Heads-Up Display)

  gameStateManager.states.Gameplay.hud = new HUD();

  gameStateManager.states.Gameplay.hud.init();

}

​

function draw() {

  // Continuously update and render the current game state

  gameStateManager.update();

  gameStateManager.render();

}

​

// Handle key presses for navigating game states

function keyPressed() {

  if (gameStateManager.currentState instanceof StartScreen) {

    gameStateManager.handleInput('keyPressed');

  } else if (gameStateManager.currentState instanceof ConfigMenu) {

    // Handle spaceship selection

    if (key === '1') {

      gameStateManager.states.ConfigMenu.handleInput('1');

    } else if (key === '2') {

      gameStateManager.states.ConfigMenu.handleInput('2');

    }

    // Handle background selection

    else if (key === 'a') {

      gameStateManager.states.ConfigMenu.handleInput('a');

    } else if (key === 'b') {

      gameStateManager.states.ConfigMenu.handleInput('b');

    } else if (key === 'c') {

      gameStateManager.states.ConfigMenu.handleInput('c');

    } else if (key === 'd') {

      gameStateManager.states.ConfigMenu.handleInput('d');

    }

    // Start game

    else if (key === 'S' || key === 's') {

      gameStateManager.states.ConfigMenu.handleInput('S');

    }

  } else if (gameStateManager.currentState instanceof Gameplay) {

    if (key === 'Q' || key === 'q') {

      gameStateManager.handleInput('Q');

    }

  } else if (gameStateManager.currentState instanceof EndScreen) {

    if (key === 'R' || key === 'r') {

      gameStateManager.handleInput('R');

    } else if (key === 'C' || key === 'c') {

      gameStateManager.handleInput('C');

    }

  }

}

​

// Handle mouse presses if necessary

function mousePressed() {

  // Implement mouse interactions for UI elements or gameplay

}

​

// Adjust canvas size when the window is resized

function windowResized() {

  resizeCanvas(windowWidth, windowHeight);

}

​

// Callback function for when faceMesh outputs data

function gotFaces(results) {

  // Save the output to the faces variable

  faces = results;

}

​