- Lines can be set to activate when crossing or bumping into them, with distinctions for players, enemies, and missiles+items.
- A new flag has been added to determine if a line special can activate more than once.
- Finish Line + Respawn Line are now handled like other specials. This means that:
- They follow the new line activation rules (so you can potentially have a finish line that you have to bump instead of cross)
- More importantly, they can be called as functions in ACS. (Player_FinishLine and Player_Respawn)
- Fixed linedef flags not being saved in save games.
- Use `SpeedPad` to set the strength. Intended to be scaled like Trick Panels, so 1 for yellow, 2 for red, so on. Can use floating point.
- Use `SpeedPadAngle` to rotate the thrust direction. This is in the same system as map angles, so east is 0, north is 90, west is 180, and south is 270. Also accepts floating point.
- Speed Pad angle accounts for the flat alignment itself, as well.
- Like Sneaker and Trick Panels, the sector / line special are now deprecated.
