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fix: isPressed will return value expectedly on iOS13 #123

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@umeruma umeruma commented Oct 2, 2019

fixes #122

The JoyPad cannot be moved on iOS 13 Safari, because of Pointer Event API that added.
https://developer.apple.com/documentation/safari_release_notes/safari_13_release_notes

Strangely, the JoyPad works fine on iOS 13 on this demo page https://yoannmoi.net/nipplejs/.
Although this fix has confirmed the expected behavior on iOS 13 Safari, it may not be a fundamental solution to the cause of this bug.

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Thanks a ton for this.
I have a single comment.

@@ -33,6 +33,9 @@ export const degrees = (a) => {
};

export const isPressed = (evt) => {
if (evt.type === 'pointerdown' || evt.type === 'pointermove') {
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Is it possible to have a evt.type === 'pointerdown' here? I don't see it.

Also, following that logic, maybe it will be the same for touchstart and touchmove?

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Sorry for late reply. When I tested with iPhone 11, I have confirmed 'pointerdown' event through here.
However, I think this is not fundamental solution, is just workaround.
So could I close this PR?

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don't close it, I think this is a good solution.
I'll take over if you don't have time for this, no worries.

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Ok, I got it.
I don't have enough time for debugging this now.

I'm working on some game project with nipplejs, and I got another bug with iOS 13 on iPhone SE: Sometimes joypad will not be destroyed, remains show up without disappearing even if I lift up my finger.

So I fork this, and I'm using this branch code.
umeruma@3be8638

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[BUG] Joystick is unresponsive when using pixi.js and iOS 13
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