'use strict';

// === SCREEN TRANSITIONS ===

// Transitions are handled in app.js updateTransition()
// This file provides helper functions for transition effects

function startTransition(target) {
  if (transitioning) return;
  transitioning = true;
  targetScreen = target;
  transitionProgress = 1;
}

// Screen fade effect
function getTransitionAlpha() {
  if (!transitioning) return 0;
  return 1 - transitionProgress;
}

// Check if transition is complete
function isTransitionComplete() {
  return !transitioning && transitionProgress <= 0;
}

// Room transition message
function onRoomTransition(roomName) {
  gameState.message = roomName;
  gameState.messageTimer = MESSAGE_DURATION;
}

if (typeof module !== 'undefined' && module.exports) {
  module.exports = { startTransition, getTransitionAlpha, isTransitionComplete };
}