feat: game_ui

[Kxnrl]

backport from ModSharp.
need more tests.

FGD here
DOC here
Example here

game_ui

create logic_case entity, then add kv

• key vscripts | value game_ui

outputs

activator = player
caller = logic_case
PlayerOn/PlayerOff only be fired OnGameFramePost

spawnflags

• 32 : Freeze Players
• 256: Jump Deactivate

case branch

Output	Case Name	Comment
Case01	PlayerOn	PlayerOn
Case02	PlayerOff	PlayerOff
Case11	PressedForward	Pressed 'W'
Case12	PressedMoveLeft	Pressed 'A'
Case13	PressedBack	Pressed 'S'
Case14	PressedMoveRight	Pressed 'D'
Case15	PressedAttack	Pressed 'Attack'
Case16	PressedAttack2	Pressed 'Attack2'
Case17	PressedSpeed	Pressed 'Speed'
Case18	PressedDuck	Pressed 'Duck'
Case21	UnpressedForward	Unpressed 'W'
Case22	UnpressedMoveLeft	Unpressed 'A'
Case23	UnpressedBack	Unpressed 'S'
Case24	UnpressedMoveRight	Unpressed 'D'
Case25	UnpressedAttack	Unpressed 'Attack'
Case26	UnpressedAttack2	Unpressed 'Attack2'
Case27	UnpressedSpeed	Unpressed 'Speed'
Case28	UnpressedDuck	Unpressed 'Duck'

[xen-000]

I think it would be better to use Pre/Post EntityThink in gamesystem.cpp