Bug #1041

[Windows] Pressing Alt/AltGr key confuses turning

Added by vermil about 12 years ago. Updated over 4 years ago.

Target version:
Start date:
% Done:




Repeatedly tapping the Alt key while pressing left or right appears to confuse the movement/camera interpolation, causing it to often jump rather than move smoothly, in 1.9.8 stable.

Labels: Controllers

Related issues

Related to Bug #1042: [Windows] Alt key and console activationNew2012-05-15

Related to Feature #1886: Use SDL 2 for window management, display modes, color correction, and keyboard/mouse/gamepad inputIn Progress2014-10-20


#1 Updated by skyjake about 12 years ago

In that case it could be related to how/when the Strafe modifier state is updated. We'll need to investigate...

#2 Updated by danij about 12 years ago

I would guess this is related to the sharp event processing. Logically the modifier states should only change on sharp tics if input-sharp = 1

#3 Updated by vermil about 12 years ago

To offer some more information regarding this;

It turns out that pressing the Alt Key while playing, no matter if anything is bound to it, causes Dday to jitter for me.

It seems this may be an artifact of QT on Windows and that Dday disables the default behavior of the Alt Key opening the application menu.

This may have led me to erroneously believe there was an issue with the Strafe/turning toggle key in Dday. By default (In Dday and Vanilla) and in my control scheme, this is bound to Alt.

#4 Updated by vermil almost 12 years ago

I'll also tie this report to the other issue the Alt Key seems to cause with Dday on Windows:

#5 Updated by vermil over 10 years ago

Just adding that it's whenever the player presses the alt key while turning; repeatedly tapping just causes it repeatedly.

Sidestepping while turning is a major part of Doom; random YouTube video of someone playing Hell Revealed 2 for instance. You can see how often the player in the below video turns while sidestepping.

Doom is a very movement focused game, as I’m sure you’ve noticed by all the tweaks that people have requested made to the new movement code in 1.9.x, so that it better matches Vanilla/1.8.x.

#6 Updated by skyjake over 10 years ago

  • Tags set to Windows, Input
  • Subject changed from [Win32] Pressing Alt/AltGr key confuses turning to [Windows] Pressing Alt/AltGr key confuses turning
  • Category set to Defect
  • Target version deleted (1.9.8)

#7 Updated by skyjake about 9 years ago

  • Related to Feature #1886: Use SDL 2 for window management, display modes, color correction, and keyboard/mouse/gamepad input added

#8 Updated by skyjake about 7 years ago

  • Target version set to Input and game controllers

#9 Updated by skyjake almost 6 years ago

  • Target version changed from Input and game controllers to 3.0

#10 Updated by skyjake over 4 years ago

  • Assignee deleted (danij)

Also available in: Atom PDF