Opened 5 months ago
Last modified 2 weeks ago
#15210 new defect
GUI: GMM: Mouse cursor is offset when screen is shaking
| Reported by: | antoniou79 | Owned by: | |
|---|---|---|---|
| Priority: | normal | Component: | GUI |
| Version: | Keywords: | ||
| Cc: | Game: | King's Quest 4 |
Description
This is tested on ScummVM 2.8.0 and a recent daily build from master HEAD 2.9.0git on Windows 10 x64.
The game used in testing is KQ4 Perils of Rosella (GOG version, English), SCI engine.
When Rosella falls off a cliff (or a significant height of stairs) the screen shakes up and down and it is game over.
If, while the screen is shaking, the user brings up the ScummVM GMM (Global Main Menu, typically with hotkey combo Ctrl+F5), then there is a chance that the mouse cursor will be offset with respect to activating the on-hover event for the buttons (and their on-click event).
See attached video for the example of the bug.
As shown in the video, it's not deterministic that the user will get the bug, but I am able to reproduce it with a certain high probability.
Change History (2)
comment:1 by , 5 months ago
comment:2 by , 2 weeks ago
Confirmed that this occurs on Mac as well as Windows.
It looks like the overlay is drawn with respect to the shake offset.
Youtube video showing the issue:
https://youtu.be/hYAFolxOscE
(I am unable to attach the mkv video here due to size limit)