Mac OS X 10.13.3 bugs

[jabagawee]

• [ ] Canvas does not appear (expected a black area in the window, got a grey area matching the rest of the window)
• [ ] Game is paused and does not run even when pressing the pause button to unpause it (shows 0 fps)
• [ ] Quitting the game via ⌘-Q causes a "segmentation fault: 11" or a "bus error: 10" or "./src/common/timercmn.cpp(111): assert "m_impl" failed in IsRunning(): uninitialized timer. Collecting stack trace information, please wait...Trace/BPT trap: 5" (see screenshot)

Debugging causes me to believe that in the loop in Sand::onRun, we are stuck in the line that says

while (Pending()) Dispatch();

but I do not know enough about the wxWidgets model to figure it out from there.

[ctrlcctrlv]

I, unfortunately, do not have a Mac so can't help with this at all.

[Wooldoor]

I've made some headway in figuring this out. I was having the same problem on macOS 10.14. In Canvas.cpp, uncommenting the line // g_canvas->Refresh(); fixes the drawing issue. I read somewhere that the default background is grey, so this might be related to that. In Sand.cpp, removing the while loop around Dispatch() so that Dispatch is called only once fixes both the segfault on quit and makes the simulation actually run. You have to move your mouse around the window to generate events so that Dispatch will return since it blocks without a previous call to pending, but it runs.