woozle-scoreboard/scoreboard.js

365 lines
9.3 KiB
JavaScript

/*
* LADD Roller Derby Scoreboard
* Copyright © 2011 Neale Pickett <neale@woozle.org>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or (at
* your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/* You can only have one scoreboard per page. This limitation is mostly
* because elements need specific id= attributes, and these attribumets
* must be unique within a page.
*
* Corollary: don't change element ids without making a corresponding
* change in this file.
*/
/* State names */
var SETUP = 0; // !P 30:00 !J 2:00
var JAM = 1; // P J 2:00
var LINEUP = 2; // P J 1:00
var TIMEOUT = 3; // !P J 1:00
var periodtext = ["Period 1", "Halftime", "Period 2", "Break"];
var period = 0;
var state = SETUP;
// Create a timer on [element].
// If [tenths] is true, show tenths of a second.
// If [callback] is defined, call it when time runs out.
function startTimer(element, tenths, callback) {
var itimer;
var startTime;
var duration = 0;
var className;
// Re-calculate and update displayed time
function refresh() {
var remain = element.remaining();
var min = Math.floor(Math.abs(remain / 60000));
var sec = (Math.floor(Math.abs(remain / 100)) / 10) % 60;
// Set classes
element.className = className;
if (! itimer) {
element.className += " paused";
}
if ((! className) && (remain <= 20000)) {
element.className += " lowtime";
}
// Has the timer run out?
if ((duration > 0) && (remain <= 0)) {
duration = 0;
sec = 0;
clearInterval(itimer);
itimer = undefined;
if (callback) {
callback();
}
}
// .toFixed() rounds, we want to truncate
if (! tenths) {
sec = Math.floor(sec);
} else {
sec = sec.toFixed(1);
}
// Zero-pad
if (sec < 10) {
sec = "0" + sec;
}
var t = min + ":" + sec;
if (t != element.innerHTML) {
element.innerHTML = t;
}
}
// Return remaining time in milliseconds
element.remaining = function() {
if (itimer) {
var now = (new Date()).getTime();
return duration - (now - startTime);
} else {
return duration;
}
}
// Set timer to [d] milliseconds.
// Put element into class [cn], if set.
element.set = function(t, cn) {
startTime = (new Date()).getTime();
duration = t;
className = cn;
refresh();
}
// Start timer
element.start = function() {
if (! itimer) {
startTime = (new Date()).getTime();
itimer = setInterval(refresh, 33);
}
refresh();
}
// Stop timer
element.stop = function() {
if (itimer) {
duration = element.remaining();
clearInterval(itimer);
itimer = undefined;
}
refresh();
}
}
// Transition state machine based on state
function transition(newstate) {
var jt = document.getElementById("jam");
var pt = document.getElementById("period");
var jtext = document.getElementById("jamtext");
if ((newstate == undefined) || (newstate == state)) {
return;
}
state = newstate;
if (state == JAM) {
pt.start();
jt.set(120000);
jt.start();
jtext.innerHTML = "Jam";
} else if (state == LINEUP) {
pt.start();
jt.set(30000, "lineup");
jt.start();
jtext.innerHTML = "Lineup";
} else if (state == TIMEOUT) {
pt.stop();
if (pt.remaining() <= 0) {
pt.set(1800000);
}
jt.set(0, "timeout");
jt.start();
jtext.innerHTML = "Timeout";
}
}
function e(id) {
return document.getElementById(id);
}
function score(team, points) {
var te = document.getElementById("score-" + team);
var ts = Number(te.innerHTML);
ts += points;
te.innerHTML = ts;
}
var preset = {a:-1, b:-1};
function logo_rotate(team, dir) {
var t;
preset[team] = (teams.length + preset[team] + dir) % teams.length;
t = teams[preset[team]];
e("name-" + team).innerHTML = t[0];
e("logo-" + team).src = "logos/" + t[1];
}
function handle(event) {
var e = event.target || window.event.srcElement;
var team = e.id.substr(e.id.length - 1);
var adj = event.shiftKey?-1:1;
var mod = (event.ctrlKey || event.altKey);
var newstate;
switch (e.id) {
case "name-a":
case "name-b":
if (state == SETUP) {
var tn = prompt("Enter team " + team + " name", e.innerHTML);
if (tn) {
e.innerHTML = tn;
}
}
break;
case "logo-a":
case "logo-b":
if (state == SETUP) {
if (mod) {
var u = prompt("Enter URL to team " + team + " logo");
if (u) {
e.src = u;
}
} else {
logo_rotate(team, adj);
}
} else {
score(team, -adj);
}
break;
case "timeouts-a":
case "timeouts-b":
// Allow for timeouts > 3
var v = Number(e.innerHTML);
v -= adj;
if (v == -1) v = 3;
e.innerHTML = v;
break;
case "period":
if ((state == SETUP) || (state == TIMEOUT)) {
var r = prompt("Enter new time for period clock", e.innerHTML);
if (! r) return;
var t = r.split(":");
var sec = 0;
if (t.length > 3) {
e.innerHTML = "What?";
return;
}
for (var i in t) {
var v = t[i];
sec = (sec * 60) + Number(v);
}
e.set(sec*1000);
} else {
newstate = TIMEOUT;
}
break;
case "periodtext":
var pt;
if (mod) {
pt = prompt("Enter new period indicator text", e.innerHTML);
} else {
var ptl = periodtext.length;
period = (period + ptl + adj) % ptl;
pt = periodtext[period];
}
if (pt) e.innerHTML = pt;
break;
case "jam":
if (state == JAM) {
newstate = LINEUP;
} else {
newstate = JAM;
}
break;
case "score-a":
case "score-b":
if (state == SETUP) {
var s = prompt("Enter score for team " + team, e.innerHTML);
if (s) {
e.innerHTML = s;
}
} else {
score(team, adj);
}
break;
}
transition(newstate);
}
function key(e) {
var newstate;
switch (String.fromCharCode(e.which || 0)) {
case " ":
if (state == JAM) {
newstate = LINEUP;
} else {
newstate = JAM;
}
break;
case "t":
newstate = TIMEOUT;
break;
case "a":
score('a', 1);
break;
case "b":
score('b', 1);
break;
case "A":
score('a', -1);
break;
case "B":
score('b', -1);
break;
}
transition(newstate);
}
function dfl(v, d) {
if (v == undefined) {
return d;
} else {
return v;
}
}
function save() {
localStorage.rdsb_name_a = e("name-a").innerHTML;
localStorage.rdsb_name_b = e("name-b").innerHTML;
localStorage.rdsb_logo_a = e("logo-a").src;
localStorage.rdsb_logo_b = e("logo-b").src;
localStorage.rdsb_score_a = e("score-a").innerHTML;
localStorage.rdsb_score_b = e("score-b").innerHTML;
localStorage.rdsb_period = period;
localStorage.rdsb_period_clock = e("period").remaining();
}
function start() {
var p = document.getElementById("period");
var j = document.getElementById("jam");
e("name-a").innerHTML = dfl(localStorage.rdsb_name_a, "Home");
e("name-b").innerHTML = dfl(localStorage.rdsb_name_b, "Vis");
e("logo-a").src = dfl(localStorage.rdsb_logo_a, "logos/black.png");
e("logo-b").src = dfl(localStorage.rdsb_logo_b, "logos/white.png");
e("score-a").innerHTML = dfl(localStorage.rdsb_score_a, 0);
e("score-b").innerHTML = dfl(localStorage.rdsb_score_b, 0);
e("timeouts-a").innerHTML = dfl(localStorage.rdsb_timeout_a, 3);
e("timeouts-b").innerHTML = dfl(localStorage.rdsb_timeout_b, 3);
period = Number(localStorage.rdsb_period) || 0;
e("periodtext").innerHTML = periodtext[period];
e("jamtext").innerHTML = "Setup";
transition();
c = Number(localStorage.rdsb_period_clock || 1800000);
startTimer(p);
p.set(c);
startTimer(j, true);
j.set(120000);
save_itimer = setInterval(save, 1000);
}
window.onload = start;