Files
bgclock/public_html/index.html
T
hansdezwartandClaude Opus 5 64bc4a9a34 Stop the Time stepper overflowing the sheet on a phone
The minutes+seconds stepper is 302px wide. With a label beside it the Time
row needs about 422px of viewport, so it has been running off the right edge
of the settings sheet on every phone narrower than that — measured 19px off
a 390pt iPhone, 34px off a 375pt SE and 89px at 320. The "00 SEC" value and
its + button were the part that got cut.

Below 420px the row now stacks: label on one line, stepper right-aligned
underneath with slightly narrower value columns. That needs 262px against
the 276px available at 320px. Wider screens keep the inline layout.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-08-11 14:39:14 +02:00

832 lines
29 KiB
HTML
Raw Blame History

This file contains ambiguous Unicode characters
This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, viewport-fit=cover, user-scalable=no">
<title>Backgammon Clock</title>
<meta name="theme-color" content="#332e2b">
<meta name="mobile-web-app-capable" content="yes">
<meta name="apple-mobile-web-app-capable" content="yes">
<meta name="apple-mobile-web-app-title" content="BG Clock">
<meta name="apple-mobile-web-app-status-bar-style" content="black-translucent">
<link rel="manifest" href="manifest.webmanifest">
<link rel="icon" href="icon-192.png">
<link rel="apple-touch-icon" href="icon-192.png">
<style>
:root{
--accent:#7E9A79;
--accent-ink:#FFFFFF;
--accent-mute:rgba(0,0,0,.34);
--idle:#9A9A9A;
--idle-ink:#2E2E2E;
--idle-mute:rgba(0,0,0,.36);
--bar:#332E2B;
--icon:#8E8880;
--icon-hot:#DFD9D1;
--flag:#A6564E;
--sheet:#232120;
--sheet-line:rgba(255,255,255,.09);
--sheet-ink:#EDE9E4;
--sheet-dim:#A29A92;
--ui:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%;overflow:hidden;background:var(--bar)}
body{
font-family:var(--ui);
font-variant-numeric:tabular-nums;
font-feature-settings:"tnum" 1;
-webkit-tap-highlight-color:transparent;
-webkit-user-select:none;user-select:none;
-webkit-touch-callout:none; /* no iOS long-press callout on a panel */
overscroll-behavior:none;
touch-action:manipulation;
}
/* ---------- frame ---------- */
.app{
height:100vh;height:100dvh; /* dvh must win — 100vh on iOS Safari is the
large viewport, so the bar and the bottom
panel end up under the toolbar */
display:grid;
grid-template-rows:1fr auto 1fr;
}
/* ---------- player panels ---------- */
.panel{
position:relative;
background:var(--idle);
color:var(--idle-ink);
overflow:hidden;
transition:background-color .18s ease;
}
.panel[data-state="active"]{background:var(--accent);color:var(--accent-ink)}
.panel[data-state="flagged"]{background:var(--flag);color:#fff}
.inner{
position:absolute;inset:0;
display:flex;flex-direction:column;
padding:max(14px,env(safe-area-inset-top)) 20px 14px;
}
.panel--top .inner{transform:rotate(180deg)}
.panel--top .inner{padding:14px 20px max(14px,env(safe-area-inset-top))}
.panel--bottom .inner{padding:14px 20px max(14px,env(safe-area-inset-bottom))}
.moves{
align-self:flex-end;
font-size:clamp(13px,3.7vw,20px);
font-weight:700;
letter-spacing:.01em;
color:var(--idle-mute);
order:-1;
}
.panel[data-state="active"] .moves,
.panel[data-state="flagged"] .moves{color:var(--accent-mute)}
.panel[data-state="flagged"] .moves{color:rgba(255,255,255,.55)}
.stack{
flex:1;
display:flex;flex-direction:column;
align-items:center;justify-content:center;
padding-bottom:16%;
gap:clamp(10px,2.4vw,18px);
}
.time{
font-size:clamp(58px,24vw,190px);
line-height:.9;
font-weight:700;
letter-spacing:-.02em;
}
/* ---------- the delay readout (the bit chess.com doesn't have) ---------- */
.delay{
display:flex;align-items:center;
gap:clamp(8px,2.2vw,14px);
opacity:0;
transition:opacity .16s ease;
}
.delay.on{opacity:1}
.track{
width:clamp(72px,20vw,140px);
height:clamp(4px,1.1vw,7px);
border-radius:99px;
background:var(--accent-mute);
opacity:.45;
overflow:hidden;
}
.fill{
display:block;height:100%;width:100%;
border-radius:99px;
background:var(--accent-ink);
transform-origin:left center;
}
.dnum{
font-size:clamp(15px,4.4vw,26px);
font-weight:700;
min-width:1.6em;
}
/* ---------- control bar ---------- */
.bar{
background:var(--bar);
height:clamp(58px,8.2vh,86px);
display:flex;align-items:center;
padding:0 clamp(12px,4vw,28px);
}
.bar .gap{flex:1.5}
.btn{
flex:1;
height:100%;
display:grid;place-items:center;
background:none;border:0;
color:var(--icon);
cursor:pointer;
}
.btn:active{color:var(--icon-hot)}
.btn[aria-pressed="false"]{color:#5E5954}
.btn svg{width:clamp(23px,6.4vw,32px);height:auto;display:block}
.btn svg[hidden]{display:none}
.btn:focus-visible{outline:2px solid var(--icon-hot);outline-offset:-6px;border-radius:8px}
/* reset armed for a second tap — the ring unwinds over the same 2s as the timeout */
#reset{position:relative}
#reset.armed{color:var(--icon-hot)}
#reset .ring{
position:absolute;
top:50%;left:50%;
width:clamp(36px,9.6vw,48px);height:clamp(36px,9.6vw,48px);
transform:translate(-50%,-50%) rotate(-90deg); /* start the arc at 12 o'clock */
display:none;
pointer-events:none;
}
#reset.armed .ring{display:block}
#reset .ring circle{
fill:none;
stroke:currentColor; /* the same flash the buttons use */
stroke-width:2.6;
stroke-linecap:round;
stroke-dasharray:113.1; /* 2πr, r=18 */
animation:unwind 2s linear forwards;
}
@keyframes unwind{
from{stroke-dashoffset:0}
to{stroke-dashoffset:113.1}
}
/* ---------- settings sheet ---------- */
.scrim{
position:fixed;inset:0;
background:rgba(0,0,0,.55);
opacity:0;pointer-events:none;
transition:opacity .2s ease;
z-index:10;
}
.scrim.on{opacity:1;pointer-events:auto}
.sheet{
position:fixed;left:0;right:0;bottom:0;
z-index:11;
background:var(--sheet);
color:var(--sheet-ink);
border-radius:20px 20px 0 0;
padding:8px 22px max(22px,env(safe-area-inset-bottom));
transform:translateY(101%);
transition:transform .26s cubic-bezier(.32,.72,0,1);
max-height:88vh;max-height:88dvh;overflow-y:auto;
overscroll-behavior:contain; /* scrolling the sheet can't rubber-band the app */
box-shadow:0 -18px 50px rgba(0,0,0,.45);
}
.sheet.on{transform:translateY(0)}
.grab{width:38px;height:4px;border-radius:99px;background:#4A4644;margin:6px auto 18px}
.row{
display:flex;align-items:center;justify-content:space-between;
gap:16px;
padding:16px 0;
border-top:1px solid var(--sheet-line);
}
.row:first-of-type{border-top:0}
.row h2{font-size:15px;font-weight:600;letter-spacing:.01em}
.row p{font-size:12.5px;color:var(--sheet-dim);margin-top:3px;line-height:1.35}
/* a minutes+seconds stepper is 302px wide, so it can't share a line with a
label on any phone — stack it under one instead of overflowing the sheet */
@media (max-width:420px){
.row--wide{flex-direction:column;align-items:stretch;gap:10px}
.row--wide .stepper{align-self:flex-end}
.row--wide .val{min-width:46px}
}
.row--presets{gap:11px}
.preset{
flex:1;
padding:13px 6px;
border-radius:11px;border:1px solid var(--sheet-line);
background:#2C2A28;color:var(--sheet-ink);
font-family:var(--ui);font-size:15px;font-weight:700;
letter-spacing:.01em;white-space:nowrap;
cursor:pointer;
transition:background-color .16s ease,color .16s ease;
}
.preset:active{background:#3A3735}
.preset[aria-pressed="true"]{
background:var(--accent);color:var(--accent-ink);
border-color:transparent;
}
.stepper{display:flex;align-items:center;gap:2px}
.step{
width:38px;height:38px;flex:none;
border-radius:11px;border:1px solid var(--sheet-line);
background:#2C2A28;color:var(--sheet-ink);
font-size:19px;font-weight:600;line-height:1;
cursor:pointer;
}
.step:active{background:#3A3735}
.val{
min-width:66px;text-align:center;
font-size:19px;font-weight:700;
}
.unit{font-size:11px;color:var(--sheet-dim);display:block;font-weight:600;letter-spacing:.06em;text-transform:uppercase;margin-top:2px}
.swatches{display:flex;gap:11px}
.sw{
width:36px;height:36px;border-radius:50%;
border:2px solid transparent;
box-shadow:inset 0 0 0 2px var(--sheet);
cursor:pointer;padding:0;
}
.sw[aria-checked="true"]{border-color:var(--sheet-ink)}
.toggle{
width:52px;height:31px;flex:none;
border-radius:99px;border:0;
background:#4A4644;
position:relative;cursor:pointer;
transition:background-color .18s ease;
}
.toggle[aria-checked="true"]{background:var(--accent)}
.toggle::after{
content:"";position:absolute;top:3px;left:3px;
width:25px;height:25px;border-radius:50%;
background:#fff;
transition:transform .18s cubic-bezier(.32,.72,0,1);
}
.toggle[aria-checked="true"]::after{transform:translateX(21px)}
.done{
width:100%;margin-top:20px;
padding:15px;border:0;border-radius:13px;
background:var(--accent);color:var(--accent-ink);
font-family:var(--ui);font-size:15.5px;font-weight:700;
cursor:pointer;
}
.hint{
font-size:12px;color:var(--sheet-dim);
text-align:center;margin-top:13px;line-height:1.45;
}
@media (prefers-reduced-motion:reduce){
*{transition-duration:.01ms!important}
}
</style>
</head>
<body>
<div class="app">
<section class="panel panel--top" data-side="0" data-state="idle">
<div class="inner">
<div class="moves">Moves: <span data-moves>0</span></div>
<div class="stack">
<div class="time" data-time>3:00</div>
<div class="delay" data-delay>
<span class="track"><i class="fill" data-fill></i></span>
<span class="dnum" data-dnum>15</span>
</div>
</div>
</div>
</section>
<div class="bar">
<button class="btn" id="reset" aria-label="Reset clock">
<svg class="ring" viewBox="0 0 40 40" aria-hidden="true"><circle cx="20" cy="20" r="18"/></svg>
<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.2" stroke-linecap="round" stroke-linejoin="round">
<path d="M20 6v6h-6"/><path d="M20 12a8 8 0 1 0-2.3 5.3"/>
</svg>
</button>
<button class="btn" id="playpause" aria-label="Pause clock">
<svg viewBox="0 0 24 24" fill="currentColor" data-icon="pause">
<rect x="6" y="4.5" width="4.4" height="15" rx="1.4"/><rect x="13.6" y="4.5" width="4.4" height="15" rx="1.4"/>
</svg>
<svg viewBox="0 0 24 24" fill="currentColor" data-icon="play" hidden>
<path d="M7.5 4.7a1 1 0 0 1 1.53-.85l9 6.3a1 1 0 0 1 0 1.7l-9 6.3A1 1 0 0 1 7.5 17.3z"/>
</svg>
</button>
<span class="gap"></span>
<button class="btn" id="settings" aria-label="Settings">
<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.1" stroke-linecap="round" stroke-linejoin="round">
<circle cx="12" cy="12" r="3.3"/>
<path d="M19.6 15a1.7 1.7 0 0 0 .34 1.87l.06.06a2 2 0 1 1-2.83 2.83l-.06-.06a1.7 1.7 0 0 0-1.87-.34 1.7 1.7 0 0 0-1.03 1.56V21a2 2 0 1 1-4 0v-.1A1.7 1.7 0 0 0 9.1 19.3a1.7 1.7 0 0 0-1.87.34l-.06.06a2 2 0 1 1-2.83-2.83l.06-.06A1.7 1.7 0 0 0 4.7 15a1.7 1.7 0 0 0-1.56-1.03H3a2 2 0 1 1 0-4h.1A1.7 1.7 0 0 0 4.7 9.1a1.7 1.7 0 0 0-.34-1.87l-.06-.06a2 2 0 1 1 2.83-2.83l.06.06A1.7 1.7 0 0 0 9 4.7h.08A1.7 1.7 0 0 0 10.1 3.14V3a2 2 0 1 1 4 0v.1a1.7 1.7 0 0 0 1.03 1.56 1.7 1.7 0 0 0 1.87-.34l.06-.06a2 2 0 1 1 2.83 2.83l-.06.06A1.7 1.7 0 0 0 19.3 9v.08a1.7 1.7 0 0 0 1.56 1.03H21a2 2 0 1 1 0 4h-.1a1.7 1.7 0 0 0-1.56 1.03z"/>
</svg>
</button>
<button class="btn" id="sound" aria-label="Sound" aria-pressed="true">
<svg viewBox="0 0 24 24" fill="currentColor" data-icon="on">
<path d="M4 9.2h3.3L12 5.1a.9.9 0 0 1 1.5.7v12.4a.9.9 0 0 1-1.5.7L7.3 14.8H4a.9.9 0 0 1-.9-.9v-3.8a.9.9 0 0 1 .9-.9z"/>
<path d="M16.4 8.6a.95.95 0 0 1 1.34.06 5.1 5.1 0 0 1 0 6.68.95.95 0 1 1-1.4-1.28 3.2 3.2 0 0 0 0-4.12.95.95 0 0 1 .06-1.34z"/>
<path d="M19.1 5.6a.95.95 0 0 1 1.34.05 9.2 9.2 0 0 1 0 12.7.95.95 0 1 1-1.39-1.3 7.3 7.3 0 0 0 0-10.1.95.95 0 0 1 .05-1.35z"/>
</svg>
<svg viewBox="0 0 24 24" fill="currentColor" data-icon="off" hidden>
<path d="M4 9.2h3.3L12 5.1a.9.9 0 0 1 1.5.7v12.4a.9.9 0 0 1-1.5.7L7.3 14.8H4a.9.9 0 0 1-.9-.9v-3.8a.9.9 0 0 1 .9-.9z"/>
<path d="M16.5 9.3a1 1 0 0 1 1.42 0L19.6 11l1.68-1.7a1 1 0 1 1 1.42 1.42L21 12.4l1.7 1.7a1 1 0 0 1-1.42 1.42L19.6 13.8l-1.68 1.7a1 1 0 0 1-1.42-1.42l1.7-1.68-1.7-1.68a1 1 0 0 1 0-1.42z"/>
</svg>
</button>
</div>
<section class="panel panel--bottom" data-side="1" data-state="idle">
<div class="inner">
<div class="moves">Moves: <span data-moves>0</span></div>
<div class="stack">
<div class="time" data-time>3:00</div>
<div class="delay" data-delay>
<span class="track"><i class="fill" data-fill></i></span>
<span class="dnum" data-dnum>15</span>
</div>
</div>
</div>
</section>
</div>
<div class="scrim" id="scrim"></div>
<div class="sheet" id="sheet" role="dialog" aria-modal="true" aria-label="Settings">
<div class="grab"></div>
<div class="row row--presets">
<button class="preset" data-base="120000" data-preset-delay="12000" aria-pressed="false">2m / 12s</button>
<button class="preset" data-base="180000" data-preset-delay="12000" aria-pressed="false">3m / 12s</button>
<button class="preset" data-base="180000" data-preset-delay="15000" aria-pressed="false">3m / 15s</button>
</div>
<div class="row row--wide">
<div>
<h2>Time</h2>
<p>Reserve time per player.</p>
</div>
<div class="stepper">
<button class="step" data-time-adj="-60"></button>
<span class="val"><span id="v-min">3</span><span class="unit">min</span></span>
<button class="step" data-time-adj="60">+</button>
<button class="step" data-time-adj="-15" style="margin-left:8px"></button>
<span class="val"><span id="v-sec">00</span><span class="unit">sec</span></span>
<button class="step" data-time-adj="15">+</button>
</div>
</div>
<div class="row">
<div>
<h2>Delay</h2>
<p>Free seconds each turn. Never carries over.</p>
</div>
<div class="stepper">
<button class="step" data-delay-adj="-1"></button>
<span class="val"><span id="v-delay">15</span><span class="unit">sec</span></span>
<button class="step" data-delay-adj="1">+</button>
</div>
</div>
<div class="row">
<div>
<h2>Colour</h2>
<p>Marks the player on turn.</p>
</div>
<div class="swatches" id="swatches" role="radiogroup" aria-label="Colour"></div>
</div>
<div class="row">
<div>
<h2>Sound</h2>
<p>Turn change, delay expiry, time out.</p>
</div>
<button class="toggle" id="t-sound" role="switch" aria-checked="true" aria-label="Sound"></button>
</div>
<button class="done" id="done">Done</button>
<p class="hint">Changing time or delay resets the clock.</p>
</div>
<script>
(function(){
"use strict";
/* ============ persistence (degrades to memory if blocked) ============ */
var store = {
get: function(k, d){ try{ var v = localStorage.getItem(k); return v === null ? d : v; }catch(e){ return d; } },
set: function(k, v){ try{ localStorage.setItem(k, v); }catch(e){} },
num: function(k, d){ var n = parseInt(store.get(k, ""), 10); return isFinite(n) ? n : d; }
};
// ask the browser not to evict us when the device is low on space
try{ if(navigator.storage && navigator.storage.persist) navigator.storage.persist(); }catch(e){}
var THEMES = [
{ id:"sage", accent:"#7E9A79", ink:"#FFFFFF" },
{ id:"brass", accent:"#C3A153", ink:"#FFFFFF" },
{ id:"slate", accent:"#6E8598", ink:"#FFFFFF" },
{ id:"teal", accent:"#5E8D87", ink:"#FFFFFF" },
{ id:"plum", accent:"#8A7396", ink:"#FFFFFF" }
];
var cfg = {
base: store.num("bg.base", 180000),
delay: store.num("bg.delay", 15000),
theme: store.get("bg.theme", "sage"),
sound: store.get("bg.sound", "1") === "1"
};
/* ============ state ============ */
var IDLE = 0, RUN = 1, PAUSE = 2, FLAG = 3;
var st = {
phase: IDLE,
active: -1,
reserve: [cfg.base, cfg.base], // reserve banked at the start of the current turn
moves: [0, 0],
turnAt: 0, // performance.now() when the turn began
held: 0, // frozen elapsed while paused
ticked: false // subtle sound already played this turn
};
/* ============ dom ============ */
var panels = [].slice.call(document.querySelectorAll(".panel"));
var el = panels.map(function(p){
return {
root: p,
time: p.querySelector("[data-time]"),
moves: p.querySelector("[data-moves]"),
delay: p.querySelector("[data-delay]"),
fill: p.querySelector("[data-fill]"),
dnum: p.querySelector("[data-dnum]")
};
});
var btnPlay = document.getElementById("playpause");
var btnSound = document.getElementById("sound");
var btnReset = document.getElementById("reset");
var sheet = document.getElementById("sheet");
var scrim = document.getElementById("scrim");
/* ============ audio (synthesised — no files, works offline) ============ */
var ac = null;
function audio(){
if(!ac){
var C = window.AudioContext || window.webkitAudioContext;
if(!C) return null;
ac = new C();
}
if(ac.state === "suspended") ac.resume();
return ac;
}
// iOS silences Web Audio through the ringer switch unless the page claims a
// playback session. Trade-off: it also interrupts whatever else is playing,
// so it's only claimed the first time the clock actually makes a sound.
var claimedSession = false;
function claimAudioSession(){
if(claimedSession) return;
claimedSession = true;
try{ if(navigator.audioSession) navigator.audioSession.type = "playback"; }catch(e){}
}
function tone(freq, at, dur, peak, type, partial){
var c = audio(); if(!c) return;
claimAudioSession();
var t0 = c.currentTime + at;
var o = c.createOscillator(), g = c.createGain();
o.type = type || "sine";
o.frequency.setValueAtTime(freq, t0);
g.gain.setValueAtTime(0.0001, t0);
g.gain.exponentialRampToValueAtTime(peak, t0 + 0.012);
g.gain.exponentialRampToValueAtTime(0.0001, t0 + dur);
o.connect(g); g.connect(c.destination);
o.start(t0); o.stop(t0 + dur + 0.05);
if(partial){
var o2 = c.createOscillator(), g2 = c.createGain();
o2.type = "sine";
o2.frequency.setValueAtTime(freq * 2, t0);
g2.gain.setValueAtTime(0.0001, t0);
g2.gain.exponentialRampToValueAtTime(peak * 0.22, t0 + 0.01);
g2.gain.exponentialRampToValueAtTime(0.0001, t0 + dur * 0.5);
o2.connect(g2); g2.connect(c.destination);
o2.start(t0); o2.stop(t0 + dur);
}
}
// warm rising fifth, marimba-ish — the handover
function sndSwap(){ if(!cfg.sound) return; tone(440, 0, 0.34, 0.20, "sine", true); tone(659.25, 0.075, 0.42, 0.17, "sine", true); }
// barely-there wooden tick — delay just ran out, reserve is now moving
function sndTick(){ if(!cfg.sound) return; tone(300, 0, 0.075, 0.035, "sine", false); }
// unmistakable falling triad — flag
function sndFlag(){
if(!cfg.sound) return;
tone(880, 0.00, 0.20, 0.24, "triangle", false);
tone(659.25, 0.16, 0.20, 0.24, "triangle", false);
tone(440, 0.32, 0.55, 0.26, "triangle", true);
}
function buzz(ms){ try{ if(navigator.vibrate) navigator.vibrate(ms); }catch(e){} }
/* ============ helpers ============ */
function elapsed(){
if(st.phase === PAUSE) return st.held;
return performance.now() - st.turnAt;
}
function fmt(ms){
if(ms < 0) ms = 0;
var t = Math.ceil(ms / 100) / 10;
if(ms < 10000) return t.toFixed(1);
var s = Math.ceil(ms / 1000);
var m = Math.floor(s / 60);
s = s % 60;
return m + ":" + (s < 10 ? "0" : "") + s;
}
/* ============ render ============ */
function render(){
var e = elapsed();
for(var i = 0; i < 2; i++){
var live = (i === st.active && (st.phase === RUN || st.phase === PAUSE));
var main = st.reserve[i], dLeft = 0;
if(live){
if(e < cfg.delay){
dLeft = cfg.delay - e;
}else{
main = st.reserve[i] - (e - cfg.delay);
if(!st.ticked && st.phase === RUN){ st.ticked = true; sndTick(); }
}
}
if(live && main <= 0 && st.phase === RUN){ flag(i); return; }
el[i].time.textContent = fmt(main);
el[i].moves.textContent = st.moves[i];
var showDelay = live && cfg.delay > 0 && dLeft > 0;
el[i].delay.classList.toggle("on", showDelay);
if(showDelay){
el[i].fill.style.transform = "scaleX(" + (dLeft / cfg.delay) + ")";
el[i].dnum.textContent = Math.ceil(dLeft / 1000);
}
if(st.phase === FLAG && i === st.active) el[i].root.dataset.state = "flagged";
else el[i].root.dataset.state = (i === st.active && st.phase !== IDLE) ? "active" : "idle";
}
}
function loop(){ render(); requestAnimationFrame(loop); }
/* ============ actions ============ */
function flag(side){
st.reserve[side] = 0;
st.phase = FLAG;
paintPlay();
render();
sndFlag();
buzz([90, 70, 90]);
}
function tap(side){
if(st.phase === FLAG) return;
if(st.phase === PAUSE) return;
if(st.phase === IDLE){
st.active = 1 - side; // you tap your own side to start your opponent
st.turnAt = performance.now();
st.ticked = false;
st.phase = RUN;
paintPlay(); // the bar has to show what the clock is doing
sndSwap(); buzz(14);
return;
}
if(side !== st.active) return; // the waiting player can't stop the clock
var e = elapsed();
st.reserve[side] = Math.max(0, st.reserve[side] - Math.max(0, e - cfg.delay));
st.moves[side]++;
st.active = 1 - side;
st.turnAt = performance.now();
st.ticked = false;
sndSwap(); buzz(14);
}
function pauseNow(){
if(st.phase !== RUN) return;
st.held = elapsed();
st.phase = PAUSE;
paintPlay();
}
function togglePause(){
if(st.phase === RUN){
pauseNow();
return;
}else if(st.phase === PAUSE){
st.turnAt = performance.now() - st.held;
st.phase = RUN;
}else return;
paintPlay();
}
/* SVG elements aren't HTMLElements, so they have no .hidden property —
setting it only makes a JS expando. The attribute has to be set by hand. */
function showIcon(btn, name, on){
var svg = btn.querySelector('[data-icon="' + name + '"]');
if(on) svg.removeAttribute("hidden"); else svg.setAttribute("hidden", "");
}
function paintPlay(){
var showPlay = st.phase !== RUN;
showIcon(btnPlay, "pause", !showPlay);
showIcon(btnPlay, "play", showPlay);
btnPlay.setAttribute("aria-label", showPlay ? "Start clock" : "Pause clock");
}
function reset(){
disarm();
st.phase = IDLE; st.active = -1;
st.reserve = [cfg.base, cfg.base];
st.moves = [0, 0];
st.held = 0; st.ticked = false;
paintPlay();
render();
}
/* reset needs two taps within 2s — one stray tap can't wipe a live game */
var armT = null;
function disarm(){
if(armT){ clearTimeout(armT); armT = null; }
btnReset.classList.remove("armed");
btnReset.setAttribute("aria-label", "Reset clock");
}
function armReset(){
if(armT){ disarm(); reset(); buzz(20); return; } // second tap inside the window
btnReset.classList.remove("armed");
void btnReset.offsetWidth; // restart the drain animation
btnReset.classList.add("armed");
btnReset.setAttribute("aria-label", "Tap again to reset");
armT = setTimeout(disarm, 2000);
}
/* ============ theme ============ */
function applyTheme(){
var t = THEMES.filter(function(x){ return x.id === cfg.theme; })[0] || THEMES[0];
document.documentElement.style.setProperty("--accent", t.accent);
document.documentElement.style.setProperty("--accent-ink", t.ink);
[].forEach.call(document.querySelectorAll(".sw"), function(s){
s.setAttribute("aria-checked", s.dataset.id === cfg.theme ? "true" : "false");
});
}
/* ============ settings ui ============ */
var swWrap = document.getElementById("swatches");
THEMES.forEach(function(t){
var b = document.createElement("button");
b.className = "sw";
b.dataset.id = t.id;
b.style.background = t.accent;
b.setAttribute("role", "radio");
b.setAttribute("aria-label", t.id);
b.setAttribute("aria-checked", "false");
b.addEventListener("click", function(){
cfg.theme = t.id; store.set("bg.theme", t.id); applyTheme();
});
swWrap.appendChild(b);
});
function paintSettings(){
var s = Math.round(cfg.base / 1000);
document.getElementById("v-min").textContent = Math.floor(s / 60);
document.getElementById("v-sec").textContent = ("0" + (s % 60)).slice(-2);
document.getElementById("v-delay").textContent = Math.round(cfg.delay / 1000);
document.getElementById("t-sound").setAttribute("aria-checked", cfg.sound ? "true" : "false");
btnSound.setAttribute("aria-pressed", cfg.sound ? "true" : "false");
showIcon(btnSound, "on", cfg.sound);
showIcon(btnSound, "off", !cfg.sound);
paintPresets();
}
/* highlight is derived from cfg, so it clears when you step away from a
preset and comes back by itself when you step onto one */
function paintPresets(){
[].forEach.call(document.querySelectorAll(".preset"), function(b){
var on = (+b.dataset.base === cfg.base && +b.dataset.presetDelay === cfg.delay);
b.setAttribute("aria-pressed", on ? "true" : "false");
});
}
[].forEach.call(document.querySelectorAll(".preset"), function(b){
b.addEventListener("click", function(){
cfg.base = parseInt(b.dataset.base, 10);
cfg.delay = parseInt(b.dataset.presetDelay, 10);
store.set("bg.base", String(cfg.base));
store.set("bg.delay", String(cfg.delay));
paintSettings(); reset();
});
});
[].forEach.call(document.querySelectorAll("[data-time-adj]"), function(b){
b.addEventListener("click", function(){
var next = cfg.base + parseInt(b.dataset.timeAdj, 10) * 1000;
cfg.base = Math.min(99 * 60000, Math.max(15000, next));
store.set("bg.base", String(cfg.base));
paintSettings(); reset();
});
});
[].forEach.call(document.querySelectorAll("[data-delay-adj]"), function(b){
b.addEventListener("click", function(){
var next = cfg.delay + parseInt(b.dataset.delayAdj, 10) * 1000;
cfg.delay = Math.min(60000, Math.max(0, next));
store.set("bg.delay", String(cfg.delay));
paintSettings(); reset();
});
});
function setSound(on){
cfg.sound = on;
store.set("bg.sound", on ? "1" : "0");
paintSettings();
if(on){ audio(); sndTick(); }
}
document.getElementById("t-sound").addEventListener("click", function(){ setSound(!cfg.sound); });
btnSound.addEventListener("click", function(){ setSound(!cfg.sound); });
function openSheet(on){
sheet.classList.toggle("on", on);
scrim.classList.toggle("on", on);
}
document.getElementById("settings").addEventListener("click", function(){
pauseNow(); // nobody's clock runs while the sheet is open
disarm();
paintSettings();
openSheet(true);
});
document.getElementById("done").addEventListener("click", function(){ openSheet(false); });
scrim.addEventListener("click", function(){ openSheet(false); });
btnReset.addEventListener("click", armReset);
btnPlay.addEventListener("click", togglePause);
/* ============ panel taps ============ */
var wantFullscreen = true;
panels.forEach(function(p){
p.addEventListener("pointerdown", function(ev){
ev.preventDefault();
audio();
if(wantFullscreen){
wantFullscreen = false;
if(!window.matchMedia("(display-mode: fullscreen)").matches && document.documentElement.requestFullscreen){
document.documentElement.requestFullscreen().catch(function(){});
}
}
tap(parseInt(p.dataset.side, 10));
});
});
/* ============ keep the screen awake ============ */
var lock = null;
function keepAwake(){
if(!navigator.wakeLock || lock) return;
if(document.visibilityState !== "visible") return; // request() rejects when hidden
navigator.wakeLock.request("screen").then(function(l){
lock = l;
// the OS drops the lock whenever the app goes to the background; without
// clearing it here the stale handle blocks every later re-request
l.addEventListener("release", function(){ lock = null; });
}).catch(function(){});
}
document.addEventListener("visibilitychange", function(){
if(document.visibilityState !== "visible") return;
keepAwake();
// iOS interrupts the audio context on backgrounding; nudge it back so the
// flag still sounds even if nobody has tapped since returning
// (old webkitAudioContext.resume() returns undefined, so don't chain on it)
if(ac && ac.state === "suspended"){ try{ ac.resume(); }catch(e){} }
});
keepAwake();
/* ============ go ============ */
applyTheme();
paintSettings();
paintPlay();
reset();
loop();
if("serviceWorker" in navigator && location.protocol.indexOf("http") === 0){
navigator.serviceWorker.register("sw.js").catch(function(){});
}
})();
</script>
</body>
</html>