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Clarify loadBitmap_ comments

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adroitwhiz 2020-03-26 23:12:10 -04:00
parent a434bc5a34
commit 5387f3a729
1 changed files with 6 additions and 2 deletions
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8
src/import/load-costume.js
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@ -212,16 +212,20 @@ const loadBitmap_ = function (costume, runtime, _rotationCenter) {
return fetched;
})
.then(({canvas, mergeCanvas, rotationCenter}) => {
// createBitmapSkin does the right thing if costume.bitmapResolution is undefined...
// TODO: is rotationCenter ever undefined?
// createBitmapSkin does the right thing if costume.rotationCenter are undefined.
// That will be the case if you upload a bitmap asset or create one by taking a photo.
let center;
if (rotationCenter) {
// fetchBitmapCanvas will ensure that the costume's bitmap resolution is 2 and its rotation center is
// scaled to match, so it's okay to always divide by 2.
center = [
rotationCenter[0] / 2,
rotationCenter[1] / 2
];
}
// TODO: costume.bitmapResolution will always be 2 at this point because of fetchBitmapCanvas_, so we don't
// need to pass it in here.
costume.skinId = runtime.renderer.createBitmapSkin(canvas, costume.bitmapResolution, center);
canvasPool.release(mergeCanvas);
const renderSize = runtime.renderer.getSkinSize(costume.skinId);