* Introducing K_GetKartButtons(player_t), for adding false presses to.
* K_GetForwardMove(player_t) takes kickstarting into account, and is now applied to engine sound generation too.
* BT_REALACCELERATE has been deleted.
* Display even if the player (or Lua) has disabled the speedometer.
* Support splits all the way up to 4p.
* Abstract out to a function that could hypothetically display more accessibility-related icons down the line.
It's no secret that holding down a button a lot can fuck with your wrists and fingers. It's too late for me to be damageless, but I can at least create an option to reduce further harm.
This accessibility feature, when enabled (kickstartaccel and kickstartaccel2/3/4 in the console) behaves with the following properties:
* Hold accelerate for 1 second to lock it down.
* Press again to release.
* Short holds/presses do nothing (good for POSITION).
* Continue holding it during the releasing press to re-lock it.
* A small triangular UI element is added next to the speedometer sticker, which displays the current state of the acceleration kickstart for visual feedback. (NO SPLITS SUPPORT YET)
In addition:
* Add PF_ACCELDOWN and PF_BRAKEDOWN, and BT_REALACCELERATE (which ACCELDOWN tracks). Even if this feature never gets merged, BT_REALACCELERATE is required because sneakers and boosters force it on too (extending this is how I implemented it).
* Fix the dehacked playerflag list being out of shape.
* I replaced some existing flags during development of this branch, so their old uses have been whittled away.
Two notable consequences of this bug:
* The delay when pressing the item button as a spectator to toggle PF_WANTSTOJOIN was not present, leading to a rapid toggle and spurious changeteam commands.
* Lightsnaking through map hazards such as Lavender Shrine's stabbies caused you extra spicy unavoidable pain.
* When lightsnaking, update the camera angle at each waypoint step to prevent being dropped the wrong way around.
* The above bullet point is WIP. I've tried to restrict manual turning while lightsnaking, but it still happens and just gets yanked back at each waypoint. Would appreciate a bit of insight here.
* Fix HUD tracking for spectators by setting thiscam->chase each tic more definitively.
* Still happens for the very first tic of the map though, must be another data point I missed 😔
* Fix the vertical jittering when a spectator's camera is on the ground.
* Mark FAULTing players as in pain, preventing you from using your rings in mid-air (which is especially egregrious when re-entering the race from being a spectator uses the item button).
* Becoming a spectator is now instant, and leaves no bumpable corpse behind.
* Players will now FAULT if they:
* change from a spectator into a player after the initial camera turnaround but before the end of POSITION.
* touch an instant kill FOF or get crushed during POSITION.
* become a spectator during POSITION. (I might change this later, seems overkill)
* If you respawn during POSITION, the jingle will not restart from the beginning.
* Change the FAULT animation to match spinout/currents.
* Clean up some of the spawning code to not place spectators on the ground.
Literally identical to Encore remapping, but *only applied when Encore mode is OFF*. Long-requested by Oni, and allows you to reuse textures and skies from other stages without having to duplicate them in different colours.
