diff --git a/source/build/include/build.h b/source/build/include/build.h
index 6203bebaa..0074c6016 100644
--- a/source/build/include/build.h
+++ b/source/build/include/build.h
@@ -510,7 +510,7 @@ EXTERN char *palookup[MAXPALOOKUPS];
 extern uint8_t *basepaltable[MAXBASEPALS];
 EXTERN uint8_t paletteloaded;
 EXTERN char *blendtable[MAXBLENDTABS];
-EXTERN uint8_t whitecol, redcol;
+EXTERN uint8_t whitecol, redcol, blackcol;
 
 EXTERN int32_t maxspritesonscreen;
 
@@ -866,6 +866,7 @@ static FORCE_INLINE void rotatesprite_win(int32_t sx, int32_t sy, int32_t z, int
 
 void   getzrange(const vec3_t *pos, int16_t sectnum, int32_t *ceilz, int32_t *ceilhit, int32_t *florz,
                  int32_t *florhit, int32_t walldist, uint32_t cliptype) ATTRIBUTE((nonnull(1,3,4,5,6)));
+extern vec2_t hitscangoal;
 int32_t   hitscan(const vec3_t *sv, int16_t sectnum, int32_t vx, int32_t vy, int32_t vz,
                   hitdata_t *hitinfo, uint32_t cliptype) ATTRIBUTE((nonnull(1,6)));
 void   neartag(int32_t xs, int32_t ys, int32_t zs, int16_t sectnum, int16_t ange,
diff --git a/source/build/include/common.h b/source/build/include/common.h
index 12c7546ca..669660d74 100644
--- a/source/build/include/common.h
+++ b/source/build/include/common.h
@@ -78,11 +78,8 @@ static inline int32_t sepldist(const int32_t dx, const int32_t dy)
 {
     vec2_t d = { klabs(dx), klabs(dy) };
 
-	if (playing_rr)
-	{
-	    if (!d.y) return d.x;
-    	if (!d.x) return d.y;
-	}
+    if (!d.y) return d.x;
+    if (!d.x) return d.y;
 
     if (d.x < d.y)
         swaplong(&d.x, &d.y);
diff --git a/source/build/src/engine.cpp b/source/build/src/engine.cpp
index 7b3192d46..ce07b885b 100644
--- a/source/build/src/engine.cpp
+++ b/source/build/src/engine.cpp
@@ -6796,16 +6796,13 @@ void dorotspr_handle_bit2(int32_t *sxptr, int32_t *syptr, int32_t *z, int32_t da
         int32_t zoomsc, sx=*sxptr, sy=*syptr;
         int32_t ouryxaspect = yxaspect, ourxyaspect = xyaspect;
 
-        if ((dastat & RS_ALIGN_MASK) && (dastat & RS_ALIGN_MASK) != RS_ALIGN_MASK)
-            sx += NEGATE_ON_CONDITION(scale(120<<16,xdim,ydim) - (160<<16), !(dastat & RS_ALIGN_R));
-
         sy += rotatesprite_y_offset;
 
-        // screen center to s[xy], 320<<16 coords.
-        const int32_t normxofs = sx-(320<<15), normyofs = sy-(200<<15);
-
         if (!(dastat & RS_STRETCH) && 4*ydim <= 3*xdim)
         {
+            if ((dastat & RS_ALIGN_MASK) && (dastat & RS_ALIGN_MASK) != RS_ALIGN_MASK)
+                sx += NEGATE_ON_CONDITION(scale(120<<16,xdim,ydim) - (160<<16), !(dastat & RS_ALIGN_R));
+
             if ((dastat & RS_ALIGN_MASK) == RS_ALIGN_MASK)
                 ydim = scale(xdim, 3, 4);
             else
@@ -6818,6 +6815,9 @@ void dorotspr_handle_bit2(int32_t *sxptr, int32_t *syptr, int32_t *z, int32_t da
         ouryxaspect = mulscale16(ouryxaspect, rotatesprite_yxaspect);
         ourxyaspect = divscale16(ourxyaspect, rotatesprite_yxaspect);
 
+        // screen center to s[xy], 320<<16 coords.
+        const int32_t normxofs = sx-(320<<15), normyofs = sy-(200<<15);
+
         // nasty hacks go here
         if (!(dastat & RS_NOCLIP))
         {
@@ -7150,7 +7150,7 @@ static void dorotatesprite(int32_t sx, int32_t sy, int32_t z, int16_t a, int16_t
 
                     if (d4 >= u4) vlineasm4(d4-u4+1, (char *)(ylookup[u4]+p));
 
-                    i = p+ylookup[d4+1];
+                    intptr_t i = p+ylookup[d4+1];
                     if (y2ve[0] > d4) prevlineasm1(vince[0],palookupoffse[0],y2ve[0]-d4-1,vplce[0],bufplce[0],i+0);
                     if (y2ve[1] > d4) prevlineasm1(vince[1],palookupoffse[1],y2ve[1]-d4-1,vplce[1],bufplce[1],i+1);
                     if (y2ve[2] > d4) prevlineasm1(vince[2],palookupoffse[2],y2ve[2]-d4-1,vplce[2],bufplce[2],i+2);
@@ -7174,7 +7174,7 @@ static void dorotatesprite(int32_t sx, int32_t sy, int32_t z, int16_t a, int16_t
 
                     if (d4 >= u4) mvlineasm4(d4-u4+1, (char *)(ylookup[u4]+p));
 
-                    i = p+ylookup[d4+1];
+                    intptr_t i = p+ylookup[d4+1];
                     if (y2ve[0] > d4) mvlineasm1(vince[0],palookupoffse[0],y2ve[0]-d4-1,vplce[0],bufplce[0],i+0);
                     if (y2ve[1] > d4) mvlineasm1(vince[1],palookupoffse[1],y2ve[1]-d4-1,vplce[1],bufplce[1],i+1);
                     if (y2ve[2] > d4) mvlineasm1(vince[2],palookupoffse[2],y2ve[2]-d4-1,vplce[2],bufplce[2],i+2);
diff --git a/source/build/src/palette.cpp b/source/build/src/palette.cpp
index 49944fc74..569ffef40 100644
--- a/source/build/src/palette.cpp
+++ b/source/build/src/palette.cpp
@@ -28,7 +28,6 @@ palette_t curpalette[256];			// the current palette, unadjusted for brightness o
 palette_t curpalettefaded[256];		// the current palette, adjusted for brightness and tint (ie. what gets sent to the card)
 palette_t palfadergb = { 0, 0, 0, 0 };
 char palfadedelta = 0;
-uint8_t blackcol;
 
 int32_t realmaxshade;
 float frealmaxshade;
@@ -266,13 +265,15 @@ void paletteLoadFromDisk(void)
 
             // Read the entries above and on the diagonal, if the table is
             // thought as being row-major.
-            if (read_and_test(fil, &transluc[256*i + i], 256-i-1))
+            if (read_and_test(fil, &transluc[256*i + i + 1], 255-i))
                 return;
 
             // Duplicate the entries below the diagonal.
-            for (bssize_t j=0; j<i; j++)
-                transluc[256*i + j] = transluc[256*j + i];
+            for (bssize_t j=i+1; j<256; j++)
+                transluc[256*j + i] = transluc[256*i + j];
         }
+        for (bssize_t i=0; i<256; i++)
+            transluc[256*i + i] = i;
     }
     else
     {
@@ -600,9 +601,6 @@ void handle_blend(uint8_t enable, uint8_t blend, uint8_t def)
 
 int32_t paletteSetLookupTable(int32_t palnum, const uint8_t *shtab)
 {
-    if (numshades != 32)
-        return -1;
-
     if (shtab != NULL)
     {
         maybe_alloc_palookup(palnum);