ZDoom defaulted to Boom's (buggy) angle adjustment.
Changed it so that
* Mode 0 is like Hexen, performing no adjustment at all. This still should match all known maps using this special.
* Mode 1 remains unchanged.
* Mode 2 replicates Boom's broken angle adjustment and is used in the xlat file.
* Mode 3 implements the correct angle adjustment that Boom originally intended.
(Note: Should some map require something different it should be handled with compatibility.txt instead of reverting this back to the broken way it was before.)
The only reason this even existed was that ZDoom's original VC projects used __fastcall. The CMake generated project do not, they stick to __cdecl.
Since no performance gain can be seen by using __fastcall the best course of action is to just remove all traces of it from the source and forget that it ever existed.
While testing this it became clear that with the higher precision of doubles it has to be avoided at all costs to compare an actor's z position with a value retrieved from ZatPoint to check if it is standing on a floor. There can be some minor variations, depending on what was done with this value. Added isAbove, isBelow and isAtZ checking methods to AActor which properly deal with the problem.
* there is a new crushing mode 3, which means that the crusher will always slow down if it hits an obstacle.
* crushing mode 1 (Doom mode) will never slow down.
* crushing mode 0 (compatibility) will only slow down for the specials that did so before, and only if both up and downspeed are 8 and the game is not Hexen. The following specials are affected:
* Ceiling_LowerAndCrush
* Ceiling_LowerAndCrushDist
* Ceiling_CrushAndRaise
* Ceiling_CrushAndRaiseA
* Ceiling_CrushAndRaiseDist
* Ceiling_CrushAndRaiseSilentA
* Ceiling_CrushAndRaiseSilentDist
* Generic_Crusher was fixed to act like in Boom: Not only a speed value of 8 will cause slowdown, but all speed values up to 24.
* Hexen crushing mode will never cause slowdowns because Hexen never did this. (which also makes no real sense, considering that the crusher waits for the obstacle to die.)
- replaced some uses of FRACUNIT with OPAQUE when it was about translucency.
- simplified some overly complicated translucency multiplications in the SBARINFO code.
- for quakes, making a distinction between circular and elliptic thrust is pointless, so the checks were removed and both paths consolidated. The elliptic code will do exactly the same for circles and there isn't even a performance difference.
- Converted P_MovePlayer and all associated variables to floating point because this wasn't working well with a mixture between float and fixed.
Like the angle commit this has just been patched up to compile, the bulk of work is yet to be done.
Patched up everything so that it compiles without errors again. This only addresses code related to some compile error. A large portion of the angle code still uses angle_t and converts back and forth.
- The following Hexen specials all stop 8 units above the floor:
* Ceiling_CrushRaiseAndStay
* Ceiling_CrushAndRaise
* Ceiling_LowerAndCrush
We only and Ceiling_LowerAndCrush correct. Clearly, I should have paid
more attention when the Hexen source was released for the parts that I
had already reverse engineered.
- renamed sector_t::soundorg in centerspot, changed the type to a fixedvec2 and removed the CenterSpot #define.
Since this thing was used in lots of places that have nothing to do with sound the name made no sense. Having it as a fixed_t array also made it clumsy to use and the CenterSpot #define used a potentially dangerous type cast.
