moth/theme/scoreboard.html

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<!DOCTYPE html>
<html>
<head>
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<title>Scoreboard</title>
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<link rel="stylesheet" href="basic.css">
<meta name="viewport" content="width=device-width">
<script src="moth-pwa.js"></script>
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<script>
function update(state) {
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let element = document.getElementById("scoreboard")
let teamnames = state["teams"]
let pointslog = state["points"]
let highscore = {}
let teams = {}
// Every machine that's displaying the scoreboard helpfully stores the last 20 values of
// points.json for us, in case of catastrophe. Thanks, y'all!
//
// We have been doing some letiation on this "everybody backs up the server state" trick since 2009.
// We have needed it 0 times.
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let pointshistory = JSON.parse(localStorage.getItem("pointshistory")) || []
if (pointshistory.length >= 20){
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pointshistory.shift()
}
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pointshistory.push(pointslog)
localStorage.setItem("pointshistory", JSON.stringify(pointshistory))
// Dole out points
for (let i in pointslog) {
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let entry = pointslog[i]
let timestamp = entry[0]
let teamhash = entry[1]
let category = entry[2]
let points = entry[3]
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let team = teams[teamhash] || {__hash__: teamhash}
// Add points to team's points for that category
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team[category] = (team[category] || 0) + points
// Record highest score in a category
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highscore[category] = Math.max(highscore[category] || 0, team[category])
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teams[teamhash] = team
}
// Sort by team score
function teamScore(t) {
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let score = 0
for (let category in highscore) {
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score += (t[category] || 0) / highscore[category]
}
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return score
}
function teamCompare(a, b) {
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return teamScore(a) - teamScore(b)
}
// Figure out how to order each team on the scoreboard
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let winners = []
for (let i in teams) {
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winners.push(teams[i])
}
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winners.sort(teamCompare)
winners.reverse()
// Clear out the element we're about to populate
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Array.from(element.childNodes).map(e => e.remove())
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let maxWidth = 100 / Object.keys(highscore).length
for (let i in winners) {
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let team = winners[i]
let row = document.createElement("div")
let ncat = 0
for (let category in highscore) {
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let catHigh = highscore[category]
let catTeam = team[category] || 0
let catPct = catTeam / catHigh
let width = maxWidth * catPct
let bar = document.createElement("span")
bar.classList.add("category")
bar.classList.add("cat" + ncat)
bar.style.width = width + "%"
bar.textContent = category + ": " + catTeam
bar.title = bar.textContent
row.appendChild(bar)
ncat += 1
}
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let te = document.createElement("span")
te.classList.add("teamname")
te.textContent = teamnames[team.__hash__]
row.appendChild(te)
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element.appendChild(row)
}
}
function once() {
fetch("points.json")
.then(resp => {
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return resp.json()
})
.then(obj => {
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update(obj)
})
.catch(err => {
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console.log(err)
})
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}
function init() {
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let base = window.location.href.replace("scoreboard.html", "")
document.querySelector("#location").textContent = base
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setInterval(once, 60000)
once()
}
if (document.readyState === "loading") {
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document.addEventListener("DOMContentLoaded", init)
} else {
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init()
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}
</script>
</head>
<body>
<h1 class="Success">Scoreboard</h1>
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<h4 id="location"></h4>
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<section>
<div id="scoreboard"></div>
</section>
<nav>
<ul>
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<li><a href="index.html">Puzzles</a></li>
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<li><a href="scoreboard.html">Scoreboard</a></li>
</ul>
</nav>
</body>
</html>