Files
the-beacon/js/main.js
Alexander Whitestone 2507a31ef2
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feat: save-on-pause via visibilitychange and beforeunload (#57)
Auto-save game state when the browser tab is hidden (visibilitychange)
or closed/navigated away (beforeunload). Prevents data loss on mobile
where tab switching can kill the page without a save interval firing.

Part of epic #57 Night of Polish — Task 6: Mobile Polish.
2026-04-11 17:21:19 -04:00

112 lines
3.4 KiB
JavaScript

// === INITIALIZATION ===
function initGame() {
G.startedAt = Date.now();
G.startTime = Date.now();
G.phase = 1;
G.deployFlag = 0;
G.sovereignFlag = 0;
G.beaconFlag = 0;
updateRates();
render();
renderPhase();
log('The screen is blank. Write your first line of code.', true);
log('Click WRITE CODE or press SPACE to start.');
log('Build AutoCode for passive production.');
log('Watch for Research Projects to appear.');
log('Keys: SPACE=Code S=Sprint 1-4=Ops B=Buy x1/10/MAX E=Export I=Import Ctrl+S=Save ?=Help');
log('Tip: Click fast for combo bonuses! 10x=ops, 20x=knowledge, 30x+=bonus code.');
}
window.addEventListener('load', function () {
const isNewGame = !loadGame();
if (isNewGame) {
initGame();
startTutorial();
} else {
render();
renderPhase();
if (G.driftEnding) {
G.running = false;
renderDriftEnding();
} else if (G.beaconEnding) {
G.running = false;
renderBeaconEnding();
} else {
log('Game loaded. Welcome back to The Beacon.');
}
}
// Game loop at 10Hz (100ms tick)
setInterval(tick, 100);
// Auto-save every 30 seconds
setInterval(saveGame, CONFIG.AUTO_SAVE_INTERVAL);
// Update education every 10 seconds
setInterval(updateEducation, 10000);
});
// Help overlay
function toggleHelp() {
const el = document.getElementById('help-overlay');
if (!el) return;
const isOpen = el.style.display === 'flex';
el.style.display = isOpen ? 'none' : 'flex';
}
// Keyboard shortcuts
window.addEventListener('keydown', function (e) {
// Help toggle (? or /) — works even in input fields
if (e.key === '?' || e.key === '/') {
// Only trigger ? when not typing in an input
if (e.target === document.body || e.key === '?') {
if (e.key === '?' || (e.key === '/' && e.target === document.body)) {
e.preventDefault();
toggleHelp();
return;
}
}
}
if (e.code === 'Space' && e.target === document.body) {
e.preventDefault();
writeCode();
}
if (e.target !== document.body) return;
if (e.code === 'Digit1') doOps('boost_code');
if (e.code === 'Digit2') doOps('boost_compute');
if (e.code === 'Digit3') doOps('boost_knowledge');
if (e.code === 'Digit4') doOps('boost_trust');
if (e.code === 'KeyB') {
// Cycle: 1 -> 10 -> MAX -> 1
if (G.buyAmount === 1) setBuyAmount(10);
else if (G.buyAmount === 10) setBuyAmount(-1);
else setBuyAmount(1);
}
if (e.code === 'KeyS') activateSprint();
if (e.code === 'KeyE') exportSave();
if (e.code === 'KeyI') importSave();
if (e.code === 'Escape') {
const el = document.getElementById('help-overlay');
if (el && el.style.display === 'flex') toggleHelp();
}
});
// Ctrl+S to save (must be on keydown to preventDefault)
window.addEventListener('keydown', function (e) {
if ((e.ctrlKey || e.metaKey) && e.code === 'KeyS') {
e.preventDefault();
saveGame();
}
});
// Save-on-pause: auto-save when tab is hidden or closed (#57 Mobile Polish)
document.addEventListener('visibilitychange', function () {
if (document.hidden) {
saveGame();
}
});
window.addEventListener('beforeunload', function () {
saveGame();
});