- SW hit code abstraction.

source/build/include/build.h

@@ -699,6 +699,10 @@ enum EHitBits
     kHitSector = 0x4000,
     kHitWall = 0x8000,
     kHitSprite = 0xC000,
+    kHitSky = 0x10000,      // SW only
+    kHitFloor = 0x18000,    // Exhumed only
+    kHitCeiling = 0x1c000,  // Exhumed only
+
 };
 
 void updateModelInterpolation();

source/games/sw/src/game.h

@@ -1055,6 +1055,7 @@ struct ROTATOR
 };
 
 using ROTATORp = ROTATOR*;
+struct Collision;
 
 //
 // User Extension record
@@ -1075,6 +1076,8 @@ struct USER
         memset(&WallP, 0, sizeof(USER) - myoffsetof(USER, WallP));
     }
 
+    Collision hitCode() const;
+
     //
     // Variables that can be used by actors and Player
     //
@@ -2232,6 +2235,11 @@ DSWActor* PLAYERstruct::Actor()
 {
     return &swActors[PlayerSprite];
 }
+
+Collision USER::hitCode() const
+{
+    return Collision(ret);
+}
 END_SW_NS
 #endif