- VC++ doesn't seem to like the TArray serializer so I added a workaround

to be able to save the 3dMidtex attachment info.
- Fixed: The TArray serializer needs to be declared as a friend of TArray
  in order to be able to access its fields.
- Since there are no backwards compatibility issues due to savegame version
  bumping I closed all gaps in the level flag set.
- Bumped min. Savegame version and Netgame version for 3dMidtex related
  changes.
- Changed Jump and Crouch DMFlags into 3-way switches:
  0: map default, 1: off, 2: on. Since I needed new bits the rest of
  the DMFlag bit values had to be changed as a result.
- fixed: PTR_SlideTraverse didn't check ML_BLOCKMONSTERS for sliding
  actors without MF3_NOBLOCKMONST.
- Added MAPINFO commands 'checkswitchrange' and 'nocheckswitchrange'
  that can enable or disable switch range checking globally per map.
- Changed ML_3DMIDTEX to force ML_CHECKSWITCHRANGE.
- Added a ML_CHECKSWITCHRANGE flag which allows checking whether the 
  player can actually reach the switch he wants to use.
- Made DActiveButton::EWhere global so that I can use it outside thr
  DActiveButton class.

March 17, 2008 (Changes by Graf Zahl)
- Changed P_LineOpening to pass its result in a struct instead of global
  variables.
- Added Eternity's 3DMIDTEX feature (no Eternity code used though.)
  It should be feature complete with the exception of the ML_BLOCKMONSTERS
  flag handling. That particular part of Eternity's implementation is
  sub-optimal because it hijacks an existing flag and doesn't seem to make
  much sense to me. Maybe I'll implement it as a separate flag later.


SVN r810 (trunk)

src/r_main.cpp

@@ -47,6 +47,7 @@
 #include "vectors.h"
 #include "a_sharedglobal.h"
 #include "r_translate.h"
+#include "p_3dmidtex.h"
 
 // MACROS ------------------------------------------------------------------
 
@@ -2008,6 +2009,9 @@ void setinterpolation(EInterpType type, void *posptr)
 	interp->Next = *interp_p;
 	*interp_p = interp;
 	interp->CopyInterpToOld ();
+
+	if (type == INTERP_SectorFloor) P_Start3dMidtexInterpolations((sector_t*)posptr, false);
+	else if (type == INTERP_SectorCeiling) P_Start3dMidtexInterpolations((sector_t*)posptr, true);
 }
 
 void stopinterpolation(EInterpType type, void *posptr)
@@ -2016,6 +2020,9 @@ void stopinterpolation(EInterpType type, void *posptr)
 	FActiveInterpolation *interp = FActiveInterpolation::FindInterpolation (type, posptr, interp_p);
 	if (interp != NULL)
 	{
+		if (type == INTERP_SectorFloor) P_Start3dMidtexInterpolations((sector_t*)posptr, false);
+		else if (type == INTERP_SectorCeiling) P_Start3dMidtexInterpolations((sector_t*)posptr, true);
+
 		*interp_p = interp->Next;
 		delete interp;
 	}