keyboard controls: switch weapons with 1, 2, 3 etc.

[FrenkelS]

We have a keyboard full of keys. We can switch weapons by pressing 1, 2, 3 etc. instead of Shift + <, >.

[FrenkelS]

Switching weapons can now be done with [ and ]. So now you can run and strafe at the same time.

Opening and closing a door and run is still a bit problematic, because Shift and Space do the same action.

[FrenkelS]

Just like in vanilla Doom, now Space opens doors, Shift enables running and Alt enables strafing.