Matchu
a0c7b6076f
Well, there's no real bundle yet, but just was noticing that PreloadJS is like 100KB, and we're only using very very basic features. Simplify and save!
157 lines
5 KiB
HTML
157 lines
5 KiB
HTML
<!DOCTYPE html>
|
|
<html>
|
|
<head>
|
|
<script src="https://code.createjs.com/1.0.0/easeljs.min.js"></script>
|
|
<script src="https://code.createjs.com/1.0.0/tweenjs.min.js"></script>
|
|
<script src="/api/assetProxy?url=http://images.neopets.com/cp/items/data/000/000/564/564507_fc3216b9b8/all-item_foreground_lower.js"></script>
|
|
</head>
|
|
<body>
|
|
<div style="display: flex; justify-content: center;">
|
|
<div
|
|
style="
|
|
width: 100%;
|
|
max-width: 600px;
|
|
border: 1px solid #aaa;
|
|
position: relative;
|
|
"
|
|
>
|
|
<div style="padding-bottom: 100%;"></div>
|
|
<canvas
|
|
id="stage-canvas"
|
|
style="
|
|
position: absolute;
|
|
left: 0;
|
|
right: 0;
|
|
top: 0;
|
|
bottom: 0;
|
|
width: 100%;
|
|
height: 100%;
|
|
"
|
|
></canvas>
|
|
</div>
|
|
</div>
|
|
<div style="margin-top: 1em; text-align: center;">
|
|
<button id="show-hide">Show/hide</button>
|
|
<button id="pause-play">Pause/play</button>
|
|
</div>
|
|
<script>
|
|
function loadImage(src) {
|
|
return new Promise((resolve, reject) => {
|
|
const image = new Image();
|
|
image.onload = () => resolve(image);
|
|
image.onerror = (e) => reject(e);
|
|
image.src = src;
|
|
});
|
|
}
|
|
|
|
function proxyUrl(url) {
|
|
return "/api/assetProxy?url=" + encodeURIComponent(url);
|
|
}
|
|
|
|
async function main() {
|
|
const composition = Object.values(AdobeAn.compositions)[0];
|
|
const library = composition.getLibrary();
|
|
|
|
const manifestImages = new Map(
|
|
library.properties.manifest.map(({ id, src }) => [
|
|
id,
|
|
loadImage(
|
|
proxyUrl(
|
|
"http://images.neopets.com/cp/items/data/000/000/564/564507_fc3216b9b8/" +
|
|
src
|
|
)
|
|
),
|
|
])
|
|
);
|
|
|
|
try {
|
|
await Promise.all(manifestImages.values());
|
|
} catch (e) {
|
|
console.error("Error loading images", e);
|
|
return;
|
|
}
|
|
|
|
const spriteSheets = composition.getSpriteSheet();
|
|
for (const { name, frames } of library.ssMetadata) {
|
|
const image = await manifestImages.get(name);
|
|
spriteSheets[name] = new createjs.SpriteSheet({
|
|
images: [image],
|
|
frames,
|
|
});
|
|
}
|
|
|
|
const movieClip = new library.allitem_foreground_lower();
|
|
|
|
const canvas = document.getElementById("stage-canvas");
|
|
const stage = new library.Stage(canvas);
|
|
canvas.width = canvas.offsetWidth * window.devicePixelRatio;
|
|
canvas.height = canvas.offsetHeight * window.devicePixelRatio;
|
|
stage.scaleX =
|
|
(canvas.offsetWidth * window.devicePixelRatio) /
|
|
library.properties.width;
|
|
stage.scaleY =
|
|
(canvas.offsetHeight * window.devicePixelRatio) /
|
|
library.properties.height;
|
|
movieClip.cache(
|
|
0,
|
|
0,
|
|
library.properties.width,
|
|
library.properties.height
|
|
);
|
|
|
|
movieClip.alpha = 0;
|
|
const tween = createjs.Tween.get(movieClip, { paused: true }).to(
|
|
{ alpha: 1 },
|
|
200
|
|
);
|
|
stage.on(
|
|
"drawend",
|
|
() => {
|
|
tween.paused = false;
|
|
},
|
|
null,
|
|
true
|
|
);
|
|
stage.addChild(movieClip);
|
|
|
|
// FPS-ish updates with RAF! https://stackoverflow.com/a/19772220/107415
|
|
// Quite a bit going on here, the basic idea is that we want to update
|
|
// the stage _more often_ than we update the MovieClip, because we want
|
|
// fade-ins to happen with as high of a frame-rate as possible, but we
|
|
// want the movie itself to run at its canonical FPS. So, we set the
|
|
// Ticker into `requestAnimationFrame` mode to send a global tick every
|
|
// time we get to draw, and update the stage on every such tick - but
|
|
// we only let it tick its _children_ if enough time has passed since
|
|
// the last one.
|
|
const movieTickInterval = 1000 / library.properties.fps;
|
|
let lastMovieTick = performance.now();
|
|
let pauseMovies = false;
|
|
createjs.Ticker.timingMode = createjs.Ticker.RAF;
|
|
createjs.Ticker.on("tick", () => {
|
|
const now = performance.now();
|
|
const elapsed = now - lastMovieTick;
|
|
if (elapsed > movieTickInterval && !pauseMovies) {
|
|
stage.tickOnUpdate = true;
|
|
lastMovieTick = now - (elapsed % movieTickInterval);
|
|
movieClip.updateCache();
|
|
} else {
|
|
stage.tickOnUpdate = false;
|
|
}
|
|
stage.update();
|
|
});
|
|
|
|
document.getElementById("show-hide").addEventListener("click", () => {
|
|
tween.reversed = !tween.reversed;
|
|
tween.setPosition(0);
|
|
tween.paused = false;
|
|
});
|
|
|
|
document.getElementById("pause-play").addEventListener("click", () => {
|
|
pauseMovies = !pauseMovies;
|
|
});
|
|
}
|
|
|
|
main();
|
|
</script>
|
|
</body>
|
|
</html>
|