This is a less intrusive variant of the old Key_ClearState() function.
When the refresher is restarted or the menu is left, this function is
called to mark all keys as "up". That works around some corner cases
where a key is still marked "down" and thus the first stroke is detected
as a repetition.
- Handling of key combinations like Alt + Return or Shift + Escape
clearly belong into the frontend. Now that the client won't clear
the keystates any more it's save to handle them there.
- The 'force_centerview' command belongs into the client move stuff.
I guess it was part of the backend sinces it messes with mouse
handling. Since the renderer is now part of the client that's not
necessary anymore.
- One can argue that +mlook and -mlook belong into client move stuff,
too. But since we need there calculations in the backend anyway,
leave things like they are.
Until now Quake 2 used keysyms aka key events for everything, including
the console and the chat window. Since key events don't reflect if the
shift key is pressed, Quake 2 needed to convert the lower case chars to
upper case char through a hardcoded table. That lead to the problem that
the keyboard layout was utilised for lower case characters only.
Solve this long standing problem by refactoring both the input backend
and the frontends Key_Event() funktion to use character events for most
input subsystem. Character events are generated by SDL and send the
real character.
An example:
- On german keyboards shift and . is : but Quake 2 generated <.
- Now a character event with : is generated and used.
There are at least 3 disadvantes by this approach:
- The backend needs to tell the frontend if a normal character (ASCII
32 to 126) or a special character is send. Only normal characters can
be treated as character events.
- There may be some differences between the binding of a key seen
through the console and seen by the game. If you have a german
keyboard and bind :, the game may not react to :. This can be worked
around by editing the config file.
- Users may need to rebind some keys.
Please note that Quake 2 can handle ASCII characters only!
In the old times the refresher was a stand alone DLL. For performance
reasons and to avoid laggy input parts of the input system were
implemented in this DLL. Now that the renfresher is part of the main
binary and initialized at client startup we can remove most of the
abstractions between input system, refresher and client. Also the
input system can be treated as a normal subsystem.
Changes:
- Untangle the VID_* stuff and the IN_* stuff. The functions
called by function pointers in in_state are now called directly
and 'struct in_state' was removed.
- Remove input.h and rename the appropriate backend functions.
There's no longer a need for an abstraction layer between the
input backend and the input frontend.
- Move input initialization and shutdown into CL_Init(), like it's
already done for all other subsystems.
- Remove Key_ClearStates(). I'm pretty sure that's a left over from
the old Win 9x backends and unnecessary.
- General cleanup.
Revert "change several strcat calls to Q_strlcat calls"
This reverts commit ab879f1bc7.
Revert "change (v)sprintf calls to (v)snprintf calls"
This reverts commit b46e210d76.
