Hello!
Since 0.2.6b, a strange issue appears when enabling the mouse with flags 0x5 on mac (mouse capture enabled).
The cart starts fine, but the more the mouse is used, the more the cart stutters until it's basically unusable.
What's funny is that the performance monitor (ctrl+P) shows weird stuff but does not seem to actually register drops to 30fps or less (at least the 60/60 string never changes).
(for a more complete video in 60 fps, see here : https://www.youtube.com/watch?v=jBTMadG90Oc)
It may not much seem like much, but it renders my current game project completely unplayable on mac.
I've managed to get a constant reproduction and made a test cart. I've confirmed that it only appears on mac, in pico-8 or exported as a mac binary. The issue does not appear on an html export on mac. I've also tested it on 0.2.5g, and it did not appear, so it seems to have been introduced in 0.2.6.
I've uploaded the test cart in this message. To reproduce the bug :
- download the cart (don't run it in bbs, it does not reproduce the bug)
- run it on mac
- activate the performance monitor (ctrl+p)
- move the mouse around for 30 seconds
- observe the bug
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