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reworked setRotation to allow all degree values

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This commit is contained in:
jonasengelmann 2022-08-22 15:34:29 +02:00
parent 9bce0e696c
commit 5f50d9e59e
2 changed files with 10 additions and 8 deletions
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16
src/viewport.js
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@ -917,16 +917,18 @@ $.Viewport.prototype = {
if (immediately) {
this.degreesSpring.resetTo(degrees);
} else {
var from = $.euclideanModulo(this.degreesSpring.current.value, 360);
this.degreesSpring.resetTo(from);
var to = $.euclideanModulo(degrees, 360);
var diff = to - from;
var normalizedFrom = $.positiveModulo(this.degreesSpring.current.value, 360);
var normalizedTo = $.positiveModulo(degrees, 360);
var diff = normalizedTo - normalizedFrom;
if (diff > 180) {
to -= 360;
normalizedTo -= 360;
} else if (diff < -180) {
to += 360;
normalizedTo += 360;
}
this.degreesSpring.springTo(to);
var reverseDiff = normalizedFrom - normalizedTo;
this.degreesSpring.resetTo(degrees + reverseDiff);
this.degreesSpring.springTo(degrees);
}
this._setContentBounds(

2
test/modules/viewport.js
View File

@ -1075,7 +1075,7 @@
viewport.setRotation(400);
assert.strictEqual(viewport.getRotation(true), 0, 'current rotation is not changed');
assert.strictEqual(viewport.getRotation(false), 40, 'target rotation is set correctly');
assert.strictEqual(viewport.getRotation(false), 400, 'target rotation is set correctly');
viewport.setRotation(200, true);
assert.strictEqual(viewport.getRotation(true), 200, 'current rotation is set correctly');