2012-03-21 23:28:24 -06:00
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<!DOCTYPE html>
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<html>
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<head>
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<title>LADD Penalty Timer</title>
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<style type="text/css">
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body {
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background: black;
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color: white;
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text-align: center;
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}
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p {
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width: 40%;
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display: inline-block;
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border: solid #444 2px;
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border-radius: 15px;
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margin: 1em;
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padding: 1em;
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}
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.expired {
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background: #080;
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}
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.lowtime {
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background: #880;
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}
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.paused {
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background: #444;
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}
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</style>
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<script type="text/javascript">
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var timer_updates = [];
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function update() {
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for (i in timer_updates) {
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var u = timer_updates[i];
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u();
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}
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}
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// Create a timer on [element].
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// If [tenths] is true, show tenths of a second.
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// If [callback] is defined, call it when time runs out.
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function startTimer(element, tenths, callback) {
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var itimer;
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var startTime;
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var duration = 0;
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var className;
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// Re-calculate and update displayed time
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function refresh() {
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var remain = element.remaining();
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var min = Math.floor(Math.abs(remain / 60000));
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var sec = (Math.floor(Math.abs(remain / 100)) / 10) % 60;
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// Set classes
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element.className = className;
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if (! itimer) {
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element.className += " paused";
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}
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if (! className) {
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if (remain <= 0) {
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element.className += " expired";
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} else if (remain <= 10000) {
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element.className += " lowtime";
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}
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}
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// Has the timer run out?
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if ((duration > 0) && (remain <= 0)) {
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duration = 0;
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sec = 0;
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clearInterval(itimer);
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itimer = undefined;
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if (callback) {
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callback();
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}
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}
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// .toFixed() rounds, we want to truncate
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if (! tenths) {
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sec = Math.floor(sec);
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} else {
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sec = sec.toFixed(1);
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}
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// Zero-pad
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if (sec < 10) {
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sec = "0" + sec;
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}
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var t = min + ":" + sec;
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if (t != element.innerHTML) {
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element.innerHTML = t;
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}
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}
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// Return remaining time in milliseconds
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element.remaining = function() {
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if (itimer) {
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var now = (new Date()).getTime();
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return duration - (now - startTime);
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} else {
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return duration;
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}
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}
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// Set timer to [d] milliseconds.
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// Put element into class [cn], if set.
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element.set = function(t, cn) {
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startTime = (new Date()).getTime();
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duration = t;
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className = cn;
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refresh();
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}
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// Start timer
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element.start = function() {
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if (! itimer) {
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startTime = (new Date()).getTime();
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itimer = setInterval(refresh, 33);
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}
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refresh();
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}
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// Stop timer
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element.stop = function() {
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if (itimer) {
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duration = element.remaining();
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clearInterval(itimer);
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itimer = undefined;
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}
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refresh();
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}
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}
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function clicky(event) {
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var tgt = event.target || window.event.srcElement;
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2012-03-21 23:29:42 -06:00
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tgt.set((tgt.remaining() + 60000) % (60000*8));
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2012-03-21 23:28:24 -06:00
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tgt.start();
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}
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var timers = [];
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function pause(event) {
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var tgt = event.target || window.event.srcElement;
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var pause = (tgt.value == "Pause");
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for (var i in timers) {
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var e = timers[i];
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if (e.remaining()) {
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if (pause) {
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e.stop();
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} else {
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e.start();
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}
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}
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}
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if (pause) {
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tgt.value = "Resume";
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} else {
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tgt.value = "Pause";
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}
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}
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function start() {
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var t = document.getElementById("timers");
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for (var i = 0; i < 8; i += 1) {
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var e = document.createElement("p");
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startTimer(e, true);
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e.set(0);
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e.onclick = clicky;
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t.appendChild(e);
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timers.push(e);
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}
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update_itimer = setInterval(update, 33);
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}
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window.onload = start;
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</script>
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</head>
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|
|
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<body>
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<div id="timers"></div>
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<input type="button" value="Pause" onclick="pause(event)">
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</body>
|
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|
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</html>
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