* Reset styles for the html and body elements, the only two HTML
* elements we use. */
html, body {
- margin: 0;
- padding: 0;
- border: 0;
- font-weight: normal;
- font-style: inherit;
- font-size: 100%;
- line-height: 1.5;
- font-family: inherit;
- text-align: inherit;
- text-decoration: none;
- vertical-align: baseline;
- background: transparent;
+ margin: 0;
+ padding: 0;
+ border: 0;
+ font-weight: normal;
+ font-style: inherit;
+ font-size: 100%;
+ line-height: 1.5;
+ font-family: inherit;
+ text-align: inherit;
+ text-decoration: none;
+ vertical-align: baseline;
+ background: transparent;
}
html, body {
- /* To create our "window" onto the scene, we're going to slide the
+ /* To create our "window" onto the scene, we're going to slide the
* SVG off the left-hand side of the screen, and we don't want
- * scroll bars to appear. */
- overflow: hidden;
+ * scroll bars to appear. */
+ overflow: hidden;
}
svg {
- /* Set the height to 100% of the screen, which we'll keep; and the
- * initial position to (0,0), which we're going to change
- * every time the window is resized, because the exact amount
- * that we have to slide the SVG to the left to get the ticket
- * into the center will change. */
- position: fixed;
- top: 0;
- left: 0;
- height: 100%;
+ /* Set the height to 100% of the screen, which we'll keep; and the
+ * initial position to (0,0), which we're going to change
+ * every time the window is resized, because the exact amount
+ * that we have to slide the SVG to the left to get the ticket
+ * into the center will change. */
+ position: fixed;
+ top: 0;
+ left: 0;
+ height: 100%;
}
/* The blinking fade in/out animation for the ticket date and time */
@keyframes blink {
- 25% {
- opacity: 0.5;
- }
- 50% {
- opacity: 0;
- }
- 75% {
- opacity: 0.5;
- }
+ 25% {
+ opacity: 0.5;
+ }
+ 50% {
+ opacity: 0;
+ }
+ 75% {
+ opacity: 0.5;
+ }
}
#tickettime, #ticketdate {
- /* 300 two-second blinks is ten minutes */
- animation: blink 2s linear 300;
+ /* 300 two-second blinks is ten minutes */
+ animation: blink 2s linear 300;
}
/* Define, load, and specify the custom font we use for the ticket
* date, time, and service name. */
@font-face {
- font-family: "CharmBypass Regular";
- src:
- url("data:font/woff2;base64,@CBPREGULAR@") format("woff2")
+ font-family: "CharmBypass Regular";
+ src:
+ url("data:font/woff2;base64,@CBPREGULAR@") format("woff2")
}
- #servicename, #tickettime, #ticketdate {
- font-family: "CharmBypass Regular";
+ #servicename, #tickettime, #ticketdate, #codetext {
+ font-family: "CharmBypass Regular", sans-serif;
}
@font-face {
- font-family: "CharmBypass Bold";
- src:
- url("data:font/woff2;base64,@CBPBOLD@") format("woff2")
+ font-family: "CharmBypass Bold";
+ src:
+ url("data:font/woff2;base64,@CBPBOLD@") format("woff2")
}
#serviceletter {
- font-family: "CharmBypass Bold";
+ font-family: "CharmBypass Bold", sans-serif;
+ font-weight: bold;
}
/************************/
/* Bus */
@keyframes busroll {
- from {
- transform: translateX(0%);
- }
- to {
- transform: translateX(100%);
- }
+ from {
+ transform: translateX(0%);
+ }
+ to {
+ transform: translateX(-100%);
+ }
}
#bus {
- animation: busroll 23s linear infinite;
+ animation: busroll 23s linear infinite;
}
/* Tram */
@keyframes tramroll {
- from {
- transform: translateX(0%);
- }
- to {
- transform: translateX(100%);
- }
+ from {
+ transform: translateX(0%);
+ }
+ to {
+ transform: translateX(100%);
+ }
}
#tram {
- animation: tramroll 17s linear infinite;
+ animation: tramroll 17s linear infinite;
}
/* Tram */
@keyframes trainroll {
- from {
- transform: translateX(0%);
- }
- to {
- transform: translateX(100%);
- }
+ from {
+ transform: translateX(0%);
+ }
+ to {
+ transform: translateX(100%);
+ }
}
#train {
- animation: trainroll 11s linear infinite;
+ animation: trainroll 11s linear infinite;
}
/* Clouds */
@keyframes cloudsfloat {
- from {
- transform: translateX(0%);
- }
- to {
- transform: translateX(-50%);
- }
+ from {
+ transform: translateX(0%);
+ }
+ to {
+ transform: translateX(-50%);
+ }
}
#clouds {
- animation: cloudsfloat 40s linear infinite;
+ animation: cloudsfloat 40s linear infinite;
}
@keyframes cloudscopyfloat {
- from {
- transform: translateX(0%);
- }
- to {
- transform: translateX(-50%);
- }
+ from {
+ transform: translateX(0%);
+ }
+ to {
+ transform: translateX(-50%);
+ }
}
#cloudscopy {
- animation: cloudscopyfloat 40s linear infinite;
+ animation: cloudscopyfloat 40s linear infinite;
}
/* Trees */
@keyframes treespass {
- from {
- transform: translateX(0%);
- }
- to {
- transform: translateX(-50%);
- }
+ from {
+ transform: translateX(0%);
+ }
+ to {
+ transform: translateX(-50%);
+ }
}
#trees {
/* The trees move a little faster than the clouds */
- animation: treespass 30s linear infinite;
+ animation: treespass 30s linear infinite;
}
@keyframes treescopypass {
- from {
- transform: translateX(0%);
- }
- to {
- transform: translateX(-50%);
- }
+ from {
+ transform: translateX(0%);
+ }
+ to {
+ transform: translateX(-50%);
+ }
}
#treescopy {
/* The trees move a little faster than the clouds */
- animation: treescopypass 30s linear infinite;
+ animation: treescopypass 30s linear infinite;
}
/* City skyline */
@keyframes cityscroll {
- from {
- transform: translateX(0%);
- }
- to {
- transform: translateX(-50%);
- }
+ from {
+ transform: translateX(0%);
+ }
+ to {
+ transform: translateX(-50%);
+ }
}
#city {
/* The city moves faster than the clouds but slower
* than the trees */
- animation: cityscroll 35s linear infinite;
+ animation: cityscroll 35s linear infinite;
}
@keyframes citycopyscroll {
- from {
- transform: translateX(0%);
- }
- to {
- transform: translateX(-50%);
- }
+ from {
+ transform: translateX(0%);
+ }
+ to {
+ transform: translateX(-50%);
+ }
}
#citycopy {
/***********************************************/
function center_ticket() {
- /* We're relying on the SVG being the full height of the
- * viewport already, and on the aspect ratio being
- * preserved. First, find the center of the ticket. */
- const r = document.getElementById("ticket").getBoundingClientRect();
- const c = r.left + (r.width / 2);
-
- /* That's the center-line of the ticket. We want to move it to
- * the center-line of the viewport. */
- const vc = document.documentElement.clientWidth / 2;
+ /* We're relying on the SVG being the full height of the
+ * viewport already, and on the aspect ratio being
+ * preserved. First, find the center of the ticket. */
+ const r = document.getElementById("ticket").getBoundingClientRect();
+ const c = r.left + (r.width / 2);
+
+ /* That's the center-line of the ticket. We want to move it to
+ * the center-line of the viewport. */
+ const vc = document.documentElement.clientWidth / 2;
+
+ /* This is how much we need to translate the SVG */
+ const hdelta = vc - c;
+
+ /* But before we can set the absolute left-coordinate of the
+ * SVG, we need to know where it is now. Note: without the
+ * "px" this doesn't default to pixels like CSS does. */
+ const svg = document.querySelector("svg");
+ svg.style.left = (svg.getBoundingClientRect().left + hdelta) + "px";
+ }
- /* This is how much we need to translate the SVG */
- const delta = vc - c;
- /* But before we can set the absolute left-coordinate of the
- * SVG, we need to know where it is now. Note: without the
- * "px" this doesn't default to pixels like CSS does. */
- const svg = document.querySelector("svg");
- svg.style.left = (svg.getBoundingClientRect().left + delta) + "px";
+ /****************************************/
+ /* Set and reposition the security code */
+ /****************************************/
+
+ function set_code() {
+ const ct = document.getElementById("codetext");
+
+ /* Get the "code" from the querystring if it's there */
+ let params = new URLSearchParams(document.location.search);
+ if (params.get("code")) {
+ ct.textContent = params.get("code");
+ }
+ else {
+ /* Otherwise, use a random code */
+ const bucket = ["0","1","2","3","4","5","6","7","8","9",
+ "A","B","C","D","E","F","G","H","I","J",
+ "K","L","M","N","O","P","Q","R","S","T",
+ "U","V","W","X","Y","Z"];
+
+ /* Two random ints between 0 and 35 */
+ const i1 = Math.floor(Math.random() * 36);
+ const i2 = Math.floor(Math.random() * 36);
+ const d1 = bucket[i1];
+ const d2 = bucket[i2];
+ ct.textContent = d1 + d2;
+ }
}
- /* Re-center it when the window is resized */
- window.addEventListener("resize", center_ticket);
- /* Center it once when the page has loaded, too */
- window.addEventListener("load", center_ticket);
+ function center_code() {
+ /* Center the security code inside its red box */
+ const ct = document.getElementById("codetext");
+
+ /* First, find the center of the red box */
+ const r1 = document.getElementById("codebg").getBoundingClientRect();
+ const c1 = r1.left + (r1.width / 2);
+ /* Now the center of the code text */
+ const r2 = ct.getBoundingClientRect();
+ const c2 = r2.left + (r2.width / 2);
+
+ /* What do we add to c2 to make it equal to c1? */
+ const hdelta = c1 - c2;
+
+ /* Since this <text> element has an "x" attribute it's easier for
+ * us to shift that than it is to mess with the "left" style. */
+ ct.setAttribute("x", parseFloat(ct.getAttribute("x")) + hdelta);
+ }
+
+ function center_code_repeatedly() {
+ /* Lets us call center_code five times on page load. Why we
+ * need to do this is an interesting (i.e. stupid) topic for
+ * conversation. */
+ center_code();
+ center_code();
+ center_code();
+ center_code();
+ center_code();
+ }
/*****************************************/
/* Next, set up the ticket date and time */
/*****************************************/
- /* There are two parameters, time and date, that we store in one
- * underlying "date" variable. Default both to an hour and a
- * half from now. This is what the CharmPass app does for
- * one-way tickets.
- */
- const date = new Date();
-
- /* Add an hour and a half. We use the low-level get/setTime to
- * change the number of milliseconds since the epoch that this
- * date represents. Obviously correct, and avoids all suspicious
- * corner cases (well, for a few more decades). */
- date.setTime(date.getTime() + (90*60*1000));
-
- /* All <text> elements produced by inkscape contain a single <tspan>
- * that itself contains the actual text. */
- tt = document.getElementById("tickettime");
- tt.firstChild.textContent = date.toLocaleTimeString();
-
- const td = document.getElementById("ticketdate");
- const dateopts = {
- day: "2-digit",
- month: "2-digit",
- year: "2-digit"
- };
- td.firstChild.textContent = date.toLocaleDateString("en-US", dateopts);
-
-
- /*************************************************************/
- /* Finally, add the onclick handler for the night/day switch */
- /*************************************************************/
+ function set_ticket_expiry() {
+ /* There are two parameters, time and date, that we store in one
+ * underlying "date" variable. Default both to an hour and a
+ * half from now. This is what the CharmPass app does for
+ * one-way tickets. */
+ const date = new Date();
+
+ /* Add an hour and a half. We use the low-level get/setTime to
+ * change the number of milliseconds since the epoch that this
+ * date represents. Obviously correct, and avoids all suspicious
+ * corner cases (well, for a few more decades). */
+ date.setTime(date.getTime() + (90*60*1000));
+
+ tt = document.getElementById("tickettime");
+ tt.textContent = date.toLocaleTimeString();
+
+ const td = document.getElementById("ticketdate");
+ const dateopts = {
+ day: "2-digit",
+ month: "2-digit",
+ year: "2-digit"
+ };
+ td.textContent = date.toLocaleDateString("en-US", dateopts);
+ }
+
+
+ /*********************************************************/
+ /* Finally, the onclick handler for the night/day switch */
+ /*********************************************************/
/* We always start in "day" mode */
is_day = true;
}
function set_night() {
- sky.style.fill = "#143b66";
+ sky.style.fill = "#143b66";
}
function swap_colors() {
- if (is_day) {
- set_night();
- is_day = false;
- }
- else {
- set_day();
- is_day = true;
- }
+ if (is_day) {
+ set_night();
+ is_day = false;
+ }
+ else {
+ set_day();
+ is_day = true;
+ }
}
+
+ /*****************************************************/
+ /* Add event handlers for all of the functions above */
+ /*****************************************************/
+
+ /* Center the ticket once when the page has loaded */
+ window.addEventListener("load", center_ticket);
+
+ /* Re-center the ticket when the window is resized */
+ window.addEventListener("resize", center_ticket);
+
+ /* Set the security code text when the page has loaded */
+ window.addEventListener("load", set_code);
+
+ /* Center the security code text when the page has loaded; in
+ * particular, after we set it. And then center it again. And
+ * again and again and again. Why? I'm glad you asked. Because
+ * it doesn't actually get centered the first time; it's off by
+ * a few pixels. But then if we center it _again_, it moves a
+ * little closer to the true center. Do that enough times and
+ * any errors become unnoticeable. */
+ window.addEventListener("load", center_code_repeatedly);
+
+ /* Re-center the security code when the window is resized,
+ * and in particular after the ticket is re-centered */
+ window.addEventListener("resize", center_code);
+
+ /* Set the ticket expiration date/time upon page load */
+ window.addEventListener("load", set_ticket_expiry);
+
+ /* Swap colors when the screen is tapped */
document.body.addEventListener("click", swap_colors);
</script>