mirror of https://github.com/ekimekim/wubloader
Implement canvas-based bus system
ElementalAlchemist
2 weeks ago
parent
5012c2cee2
commit
7fca10593d
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@ -1,54 +1,12 @@
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<!doctype html>
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<html>
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<style>
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#road-container {
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width: 100%;
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height: 100px;
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left: 0;
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top: 0;
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position: absolute;
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// margin: 980px 0 0 -100px; // uncomment to move to bottom of screen
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z-index: 3;
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}
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#road-container div {
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height: 100px;
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width: 100%;
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position: absolute;
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background-position: 0px 0px;
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}
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#timeofday-left {
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z-index: 5;
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}
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#timeofday-right {
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z-index: 4;
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}
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#stops {
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z-index: 6;
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background-image: url(stops.png);
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}
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#bus {
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background-repeat: no-repeat;
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margin-left: 27px;
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z-index: 8;
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}
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</style>
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<body>
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<div id="road-container">
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<div id="bus"></div>
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<div id="timeofday-left"></div>
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<div id="timeofday-right"></div>
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<div id="stops"></div>
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</div>
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<head>
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<meta charset="utf-8" />
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<title>Bus Progress</title>
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<link rel="stylesheet" href="drive.css" />
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<script src="drive.js"></script>
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</head>
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<body>
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<canvas id="road" width="1920" height="100"></canvas>
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</body>
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</html>
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@ -1,122 +1,198 @@
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const PAGE_WIDTH = 1920;
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const MINUTES_PER_PAGE = 60;
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const POINT_WIDTH = PAGE_WIDTH * 8 * 60 / MINUTES_PER_PAGE;
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const MILES_PER_PAGE = 45;
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const BUS_POSITION_X = 93;
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const BASE_ODO = 109.3;
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const UPDATE_INTERVAL_MS = 5000
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const WUBLOADER_URL = "";
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const SKY_URLS = {
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day: "db_day.png",
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dawn: "db_dawn.png",
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dusk: "db_dusk.png",
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night: "db_night.png",
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};
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const BUS_URLS = {
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day: "bus_day.png",
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dawn: "bus_day.png",
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dusk: "bus_day.png",
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night: "bus_night.png",
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const COLORS = {
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day: {
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sky: "#41cee2",
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ground: "#e5931b",
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surface: "#b77616",
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},
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dusk: {
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sky: "#db92be",
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ground: "#dd926a",
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surface: "#b17555",
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},
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night: {
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sky: "#121336",
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ground: "#30201a",
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surface: "#261a15",
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},
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dawn: {
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sky: "#2b2f87",
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ground: "#724d41",
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surface: "#5b3e34",
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},
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};
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function setSkyElements(left, right, timeToTransition) {
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const leftElement = document.getElementById("timeofday-left");
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const rightElement = document.getElementById("timeofday-right");
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const busElement = document.getElementById("bus");
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// The width from the left side of the bus image to the front of the bus
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const BUS_FRONT_OFFSET = 73;
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leftElement.style.backgroundImage = `url(${SKY_URLS[left]})`;
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rightElement.style.backgroundImage = `url(${SKY_URLS[right]})`;
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// Start time of each day phase
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const DAY_START_MINUTES = 450;
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const DUSK_START_MINUTES = 1140;
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const NIGHT_START_MINUTES = 1200;
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const DAWN_START_MINUTES = 400;
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if (left === right) {
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leftElement.style.width = "100%";
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} else {
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const transitionPercent = timeToTransition / MINUTES_PER_PAGE;
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leftElement.style.width = `${transitionPercent * 100}%`
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}
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const BUS_STOP_OFFSET = 6;
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const POINT_OFFSET = 17;
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bus.style.backgroundImage = `url(${BUS_URLS[left]})`;
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}
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// Bus stop positions are recorded in miles with the 0 position
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// at route start. This array can be looped every point.
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const BUS_STOP_POSITIONS = [1, 55.2, 125.4, 166.3, 233.9, 295.2];
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function nextSkyTransition(timeofday, clock) {
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switch (timeofday) {
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case "dawn":
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// The default scaling factor is 20 seconds per pixel at max speed.
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// This gives us
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// - 3px per minute
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// - 4px per mile
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let scaleFactor = 1;
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function nextPhase(timeOfDay) {
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switch (timeOfDay) {
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case "day":
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return [19 * 60, "dusk"]; // 7pm
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case "dawn":
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return "dusk";
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case "dusk":
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return [20 * 60, "night"]; // 8pm
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return "night";
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case "night":
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return [6 * 60 + 40, "dawn"]; // 6:40am
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return "dawn";
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}
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}
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function setSky(timeofday, clock) {
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const [transition, newSky] = nextSkyTransition(timeofday, clock);
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// 1440 minutes in 24h, this code will return time remaining even if
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// the transition is in the morning and we're currently in the evening.
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const timeToTransition = (1440 + transition - clock) % 1440;
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if (timeToTransition < MINUTES_PER_PAGE) {
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// Transition on screen
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setSkyElements(timeofday, newSky, timeToTransition);
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} else {
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// No transition on screen
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setSkyElements(timeofday, timeofday, undefined);
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function phaseStartTime(timeOfDay) {
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switch (timeOfDay) {
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case "day":
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return DAY_START_MINUTES;
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case "dusk":
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return DUSK_START_MINUTES;
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case "night":
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return NIGHT_START_MINUTES;
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case "dawn":
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return DAWN_START_MINUTES;
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}
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}
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function setOdo(odo) {
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const distancePixels = PAGE_WIDTH * (odo - BASE_ODO) / MILES_PER_PAGE;
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const offset = (BUS_POSITION_X - distancePixels) % POINT_WIDTH;
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function drawBackground(context, timeOfDay, leftX, width) {
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const skyColor = COLORS[timeOfDay].sky;
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const groundColor = COLORS[timeOfDay].ground;
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const surfaceColor = COLORS[timeOfDay].surface;
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const stopsElement = document.getElementById("stops");
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stopsElement.style.backgroundPosition = `${offset}px 0px`;
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context.fillStyle = COLORS[timeOfDay].sky;
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context.fillRect(leftX, 0, width, 100);
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context.fillStyle = COLORS[timeOfDay].surface;
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context.fillRect(leftX, 80, width, 1);
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context.fillStyle = COLORS[timeOfDay].ground;
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context.fillRect(leftX, 81, width, 7);
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context.fillRect(leftX, 89, width, 3);
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context.fillRect(leftX, 94, width, 2);
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context.fillRect(leftX, 99, width, 1);
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}
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async function update() {
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const busDataResponse = await fetch(`${WUBLOADER_URL}/thrimshim/bus/buscam`);
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async function drawRoad() {
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const busDataResponse = await fetch("/thrimshim/bus/buscam");
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if (!busDataResponse.ok) {
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return;
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}
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const busData = await busDataResponse.json();
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console.log("Got data:", busData);
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setOdo(busData.odometer);
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setSky(busData.timeofday, busData.clock_minutes);
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}
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// Initial conditions, before the first refresh finishes
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setSky("day", 7 * 60);
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setOdo(BASE_ODO);
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// Testing mode. Set true to enable.
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const test = false;
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if (test) {
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let h = 0;
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// Set to how long 1h of in-game time should take in real time
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const hourTimeMs = 1 * 1000;
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// Set to how often to update the screen
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const interval = 30;
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setInterval(() => {
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h += interval / hourTimeMs;
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setOdo(BASE_ODO + 45 * h);
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if (h < 19) {
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setSky("day", 60 * h);
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} else {
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m = (h % 24) * 60;
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let tod;
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if (m < 6 * 60 + 40) {
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tod = "night";
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} else if (m < 19 * 60) {
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tod = "dawn";
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} else if (m < 20 * 60) {
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tod = "dusk";
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const canvas = document.getElementById("road");
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if (!canvas.getContext) {
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return;
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}
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const context = canvas.getContext("2d");
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// Clear the previous canvas before starting
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context.clearRect(0, 0, 1920, 100);
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const currentTime = busData.clock_minutes;
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const distance = busData.odometer;
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const timeOfDay = busData.timeofday;
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drawBackground(context, timeOfDay, 0, BUS_FRONT_OFFSET);
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const maxWidth = 1920 - BUS_FRONT_OFFSET;
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// TODO Figure out scaling factor
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const startMinute = busData.clock_minutes;
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const timeDuration = maxWidth / 3;
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let previousTime = startMinute;
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let previousTimeOfDay = timeOfDay;
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let remainingDuration = timeDuration;
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let x = BUS_FRONT_OFFSET;
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while (remainingDuration > 0) {
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const nextTimeOfDay = nextPhase(previousTimeOfDay);
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const nextStartTime = phaseStartTime(nextTimeOfDay);
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let thisDuration = nextStartTime - previousTime;
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if (thisDuration < 0) {
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thisDuration += 1440;
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}
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// TODO Figure out scaling factor
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const pixelWidth = thisDuration * 3;
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drawBackground(context, previousTimeOfDay, x, pixelWidth);
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remainingDuration -= thisDuration;
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previousTime = nextStartTime;
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previousTimeOfDay = nextTimeOfDay;
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x += pixelWidth;
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}
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x = BUS_FRONT_OFFSET;
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const currentPointProgress = distance % 360;
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let distanceToNextPoint;
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if (currentPointProgress <= 109.3) {
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distanceToNextPoint = 109.3 - currentPointProgress;
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} else {
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tod = "night";
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distanceToNextPoint = 469.3 - currentPointProgress;
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}
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setSky(tod, m);
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// TODO Figure out scaling factor
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x += distanceToNextPoint * 4;
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const pointImage = new Image();
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pointImage.src = "point.png";
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context.drawImage(pointImage, x - POINT_OFFSET, 0);
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while (x < maxWidth) {
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// TODO Figure out scaling factor
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x += 360 * 4;
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context.drawImage(pointImage, x - POINT_OFFSET, 0);
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}
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}, interval);
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const distanceOnRoute = (distance - 109.3) % 360;
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const busStopImage = new Image();
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busStopImage.src = "db_stop.png";
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// TODO Figure out scaling factor
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let distanceTracked = distanceOnRoute - BUS_FRONT_OFFSET / 4;
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if (distanceTracked < 0) {
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distanceTracked += 720;
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}
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x = 0;
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while (x < 1920) {
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const distanceTrackedOnRoute = distanceTracked % 360;
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let nextBusStopPosition = null;
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for (const busStopPosition of BUS_STOP_POSITIONS) {
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if (busStopPosition >= distanceTrackedOnRoute + 1) {
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nextBusStopPosition = busStopPosition;
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break;
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}
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}
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if (nextBusStopPosition === null) {
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nextBusStopPosition = 360 + BUS_STOP_POSITIONS[0];
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}
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const nextBusStopDistance = nextBusStopPosition - distanceTrackedOnRoute;
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distanceTracked += nextBusStopDistance;
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// TODO Figure out scaling factor
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x += nextBusStopDistance * 4;
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context.drawImage(busStopImage, x - BUS_STOP_OFFSET, 0);
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}
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const busImage = new Image();
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if (timeOfDay === "night") {
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busImage.src = "bus_night.png";
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} else {
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// Do first update immediately, then every UPDATE_INTERVAL_MS
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setInterval(update, UPDATE_INTERVAL_MS);
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update();
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busImage.src = "bus_day.png";
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}
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context.drawImage(busImage, 0, 0);
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}
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window.addEventListener("DOMContentLoaded", (event) => {
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drawRoad();
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setInterval(drawRoad, 10000);
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});
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