A couple of tweaks for easier work with TROR:

* When TROR-joining and sectors reachable through former red walls could need displacement, ask the user; if something is wrong with the walls of the two components to join, jump to that place and print coordinates of offending wall and its point2 in the OSD
 * Ctrl-TAB in 2D mode now toggles filling of the currently aimed-at sector; it's not very in sync with the rest of the controls though (e.g. some commands will potentially affect each sector that contains the crosshair)
 * Fill sectors slightly different so that highlighted sectors above each other are easier to distinguish
 * In the editor, always clear the screen to a 'rainbow' of the palette before each frame. This makes no-draw ('HOM') and accidental translucency glitches stand out more clearly
 * a few misc. tweaks, consistency checks, and fixes


git-svn-id: https://svn.eduke32.com/eduke32@1901 1a8010ca-5511-0410-912e-c29ae57300e0

polymer/eduke32/build/include/osd.h

@@ -102,6 +102,7 @@ char *OSD_GetFmtPtr(void);
 
 int32_t OSD_GetCols(void);
 int32_t OSD_IsMoving(void);
+int32_t OSD_GetRowsCur(void);
 
 // initializes things
 void OSD_Init(void);

polymer/eduke32/build/src/build.c

@@ -95,7 +95,7 @@ extern char textfont[128][8];
 // only valid when highlightsectorcnt>0 and no structural
 // modifications (deleting/inserting sectors or points, setting new firstwall)
 // have been made
-static int16_t onextwall[MAXWALLS];
+static int16_t onextwall[MAXWALLS];  // onextwall[i]>=0 implies wall[j].nextwall < 0
 static void mkonwvalid(void) { chsecptr_onextwall = onextwall; }
 static void mkonwinvalid(void) { chsecptr_onextwall = NULL; }
 static int32_t onwisvalid(void) { return chsecptr_onextwall != NULL; }
@@ -128,6 +128,7 @@ static int32_t tempxyar[MAXWALLS][2] ATTRIBUTE((aligned(8)));
 static int32_t mousx, mousy;
 int16_t prefixtiles[10] = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };
 uint8_t hlsectorbitmap[MAXSECTORS>>3];  // show2dsector is already taken...
+static int32_t minhlsectorfloorz = 0;
 
 static uint8_t visited[MAXWALLS>>3];  // used for AlignWalls and trace_loop
 
@@ -1812,13 +1813,21 @@ void update_highlightsector(void)
 {
     int32_t i;
 
+    minhlsectorfloorz = INT32_MAX;
+
     highlightsectorcnt = 0;
     for (i=0; i<numsectors; i++)
         if (hlsectorbitmap[i>>3]&(1<<(i&7)))
+        {
             highlightsector[highlightsectorcnt++] = i;
+            minhlsectorfloorz = min(minhlsectorfloorz, sector[i].floorz);
+        }
 
     if (highlightsectorcnt==0)
+    {
+        minhlsectorfloorz = 0;
         highlightsectorcnt = -1;
+    }
 }
 
 // hook run after handleevents in side view
@@ -2244,6 +2253,7 @@ static int32_t compare_wall_coords(const void *w1, const void *w2)
     circlepoints = 7; \
     } while (0)
 
+
 // breadth-first search helpers
 void bfirst_search_init(int16_t *list, uint8_t *bitmap, int32_t *eltnumptr, int32_t maxnum, int16_t firstelt)
 {
@@ -2273,7 +2283,7 @@ static int16_t collsectlist[2][MAXSECTORS];
 static uint8_t collsectbitmap[2][MAXSECTORS>>3];
 
 static void collect_sectors1(int16_t *sectlist, uint8_t *sectbitmap, int32_t *numsectptr,
-                             int16_t startsec, int32_t alsoyaxnext)
+                             int16_t startsec, int32_t alsoyaxnext, int32_t alsoonw)
 {
     int32_t j, startwall, endwall, sectcnt;
 
@@ -2282,7 +2292,12 @@ static void collect_sectors1(int16_t *sectlist, uint8_t *sectbitmap, int32_t *nu
     for (sectcnt=0; sectcnt<*numsectptr; sectcnt++)
     {
         for (WALLS_OF_SECTOR(sectlist[sectcnt], j))
-            bfirst_search_try(sectlist, sectbitmap, numsectptr, wall[j].nextsector);
+        {
+            if (wall[j].nextsector >= 0)
+                bfirst_search_try(sectlist, sectbitmap, numsectptr, wall[j].nextsector);
+            else if (alsoonw && onextwall[j]>=0)
+                bfirst_search_try(sectlist, sectbitmap, numsectptr, sectorofwall(onextwall[j]));
+        }
 
         if (alsoyaxnext)
         {
@@ -2298,41 +2313,46 @@ static void collect_sectors1(int16_t *sectlist, uint8_t *sectbitmap, int32_t *nu
     }
 }
 
+
+static int32_t sectors_components(int16_t hlsectcnt, const int16_t *hlsectors, int32_t alsoyaxnext, int32_t alsoonw);
+static int32_t highlighted_sectors_components(int32_t alsoyaxnext, int32_t alsoonw)
+{
+    return sectors_components(highlightsectorcnt, highlightsector, alsoyaxnext, alsoonw);
+}
+
 // whether all highlighted sectors are in one (returns 1), two (2)
 // or more (>2) connected components wrt the nextsector relation
 // -1 means error
 //  alsoyaxnext: also consider "yax-nextsector" relation
-static int32_t highlighted_sectors_components(int32_t alsoyaxnext)
+//  alsoonw: also consider "old-nextwall" relation (must be valid)
+static int32_t sectors_components(int16_t hlsectcnt, const int16_t *hlsector, int32_t alsoyaxnext, int32_t alsoonw)
 {
     int32_t j, k, tmp;
 
-    if (highlightsectorcnt<1)
+    if (hlsectcnt<1)
         return 0;
 
-    if (highlightsectorcnt==1)
-        return 1;
-
     collect_sectors1(collsectlist[0], collsectbitmap[0], &collnumsects[0],
-                     highlightsector[0], alsoyaxnext);
+                     hlsector[0], alsoyaxnext, alsoonw);
 
-    for (k=0; k<highlightsectorcnt; k++)
+    for (k=1; k<hlsectcnt; k++)
     {
-        j = highlightsector[k];
+        j = hlsector[k];
         if ((collsectbitmap[0][j>>3]&(1<<(j&7)))==0)
         {
             // sector j not collected --> more than 1 conn. comp.
             collect_sectors1(collsectlist[1], collsectbitmap[1], &collnumsects[1],
-                             j, alsoyaxnext);
+                             j, alsoyaxnext, alsoonw);
             break;
         }
     }
 
-    if (k == highlightsectorcnt)
+    if (k == hlsectcnt)
         return 1;
 
-    for (k=0; k<highlightsectorcnt; k++)
+    for (k=0; k<hlsectcnt; k++)
     {
-        j = highlightsector[k];
+        j = hlsector[k];
         tmp = (((collsectbitmap[0][j>>3]&(1<<(j&7)))!=0) + (((collsectbitmap[1][j>>3]&(1<<(j&7)))!=0)<<1));
 
         if (tmp==3)
@@ -2430,6 +2450,42 @@ static void handlesecthighlight1(int32_t i, int32_t sub, int32_t nograycheck)
     }
 }
 
+#ifdef YAX_ENABLE
+// 1: good, 0: bad
+static int32_t hl_all_bunch_sectors_p()
+{
+    uint8_t *const havebunch = visited;
+    int16_t cf, cb, fb;
+    int32_t i, j;
+
+    if (numyaxbunches > 0)
+    {
+        Bmemset(havebunch, 0, (numyaxbunches+7)>>3);
+        for (i=0; i<highlightsectorcnt; i++)
+        {
+            yax_getbunches(highlightsector[i], &cb, &fb);
+            if (cb>=0)
+                havebunch[cb>>3] |= (1<<(cb&7));
+            if (fb>=0)
+                havebunch[fb>>3] |= (1<<(fb&7));
+        }
+
+        for (i=0; i<numyaxbunches; i++)
+        {
+            if ((havebunch[i>>3] & (1<<(i&7)))==0)
+                continue;
+
+            for (cf=0; cf<2; cf++)
+                for (SECTORS_OF_BUNCH(i,cf, j))
+                    if ((hlsectorbitmap[j>>3]&(1<<(j&7)))==0)
+                        return 0;
+        }
+    }
+
+    return 1;
+}
+#endif
+
 void overheadeditor(void)
 {
     char buffer[80], ch;
@@ -2728,12 +2784,9 @@ void overheadeditor(void)
 
             if (highlightsectorcnt >= 0)
             {
-                int32_t oydim16 = ydim16;
-                ydim16 = ydim-STATUS2DSIZ2;
                 for (i=0; i<numsectors; i++)
                     if (hlsectorbitmap[i>>3]&(1<<(i&7)))
                         fillsector(i, -1);
-                ydim16 = oydim16;
             }
 
             if (keystatus[0x2a]) // FIXME
@@ -2841,6 +2894,13 @@ void overheadeditor(void)
             int32_t about_x=keystatus[0x2d];
             int32_t doMirror = eitherALT;  // mirror walls and wall/floor sprites
 
+#ifdef YAX_ENABLE
+            if (highlightsectorcnt > 0 && !hl_all_bunch_sectors_p())
+            {
+                printmessage16("To flip extended sectors, all sectors of a bunch must be selected");
+            }
+            else
+#endif
             if (highlightsectorcnt > 0)
             {
                 keystatus[0x2d] = keystatus[0x15] = 0;
@@ -3017,6 +3077,13 @@ void overheadeditor(void)
 
         if (tsign)
         {
+#ifdef YAX_ENABLE
+            if (highlightsectorcnt > 0 && !hl_all_bunch_sectors_p())
+            {
+                printmessage16("To rotate ext. sectors, all sectors of a bunch must be selected");
+            }
+            else
+#endif
             if (highlightsectorcnt > 0)
             {
                 int32_t smoothRotation = !eitherSHIFT;
@@ -3232,7 +3299,7 @@ void overheadeditor(void)
                     goto end_yax;
                 }
 
-                if (highlighted_sectors_components(0) != 1)
+                if (highlighted_sectors_components(0,0) != 1)
                 {
                     message("Sectors to extend must be in one connected component");
                     goto end_yax;
@@ -4092,29 +4159,20 @@ end_after_dragging:
 
                     if (cursectorhighlight >= 0 && cursectorhighlight < numsectors)
                     {
-//                        for (i=0; i<highlightsectorcnt; i++)
+                        //You clicked inside one of the flashing sectors!
-//                            if (cursectorhighlight == highlightsector[i])
+                        sectorhighlightstat = 1;
-                        {
-                            //You clicked inside one of the flashing sectors!
-                            sectorhighlightstat = 1;
 
-                            dax = mousxplc;
+                        dax = mousxplc;
-                            day = mousyplc;
+                        day = mousyplc;
-                            if (gridlock && grid > 0)
+                        if (gridlock && grid > 0)
-                                locktogrid(&dax, &day);
+                            locktogrid(&dax, &day);
 
-                            sectorhighlightx = dax;
+                        sectorhighlightx = dax;
-                            sectorhighlighty = day;
+                        sectorhighlighty = day;
-//                                break;
-                        }
                     }
                 }
                 else if (sectorhighlightstat == 1)
                 {
-#ifdef YAX_ENABLE
-                    uint8_t *const havebunch = visited;
-                    int16_t cf, cb, fb, good=1;
-#endif
                     dax = mousxplc;
                     day = mousyplc;
                     if (gridlock && grid > 0)
@@ -4125,35 +4183,7 @@ end_after_dragging:
                     sectorhighlightx += dax;
                     sectorhighlighty += day;
 #ifdef YAX_ENABLE
-                    if (numyaxbunches > 0)
+                    if (!hl_all_bunch_sectors_p())
-                    {
-                        Bmemset(havebunch, 0, (numyaxbunches+7)>>3);
-                        for (i=0; i<highlightsectorcnt; i++)
-                        {
-                            yax_getbunches(highlightsector[i], &cb, &fb);
-                            if (cb>=0)
-                                havebunch[cb>>3] |= (1<<(cb&7));
-                            if (fb>=0)
-                                havebunch[fb>>3] |= (1<<(fb&7));
-                        }
-
-                        for (i=0; i<numyaxbunches; i++)
-                        {
-                            if ((havebunch[i>>3] & (1<<(i&7)))==0)
-                                continue;
-
-                            for (cf=0; cf<2; cf++)
-                                for (SECTORS_OF_BUNCH(i,cf, j))
-                                    if ((hlsectorbitmap[j>>3]&(1<<(j&7)))==0)
-                                    {
-                                        good = 0;
-                                        goto try_dragging_sectors;
-                                    }
-                        }
-                    }
-
-try_dragging_sectors:
-                    if (!good)
                         printmessage16("To drag extended sectors, all sectors of a bunch must be selected");
                     else
 #endif
@@ -4521,11 +4551,12 @@ end_point_dragging:
                 //  (doesn't yet say which is stationary)
                 // movestat: which component can be displaced?
                 //  &1: first,  &2: second
-                int32_t askres, joinstat, needsdisp, movestat, dx=0,dy=0,dz;
+                int32_t askres, joinstat, needsdisp, moveonwp;
+                int32_t movestat, dx=0,dy=0,dz, delayerr=0;
 
                 // tempxyar: int32_t [MAXWALLS][2]
                 int32_t numouterwalls[2] = {0,0}, numowals;
-                int16_t *const outerwall[2] = { (int16_t *)tempxyar, ((int16_t *)tempxyar)+MAXWALLS };
+                static int16_t outerwall[2][MAXWALLS];
                 const walltype *wal0, *wal1;
 
                 // join sector ceilings/floors to a new bunch
@@ -4537,7 +4568,7 @@ end_point_dragging:
 
                 // first, see whether we have exactly two connected components
                 // wrt wall[].nextsector
-                if (highlighted_sectors_components(0) != 2)
+                if (highlighted_sectors_components(0,0) != 2)
                 {
                     message("Sectors must be partitioned in two components to join");
                     goto end_join_sectors;
@@ -4603,9 +4634,12 @@ end_point_dragging:
                 if (numouterwalls[0] != numouterwalls[1])
                 {
                     message("Number of outer walls must be equal for both components");
-                    goto end_join_sectors;
+                    if (numouterwalls[0]>0 && numouterwalls[1]>0)
+                        delayerr = 1;
+                    else
+                        goto end_join_sectors;
                 }
-                numowals = numouterwalls[0];
+                numowals = min(numouterwalls[0], numouterwalls[1]);
 
                 // now sort outer walls 'geometrically'
                 for (comp=0; comp<2; comp++)
@@ -4626,11 +4660,23 @@ end_point_dragging:
                             wall[wal1->point2].x - wall[wal0->point2].x != dx ||
                             wall[wal1->point2].y - wall[wal0->point2].y != dy)
                     {
+                        pos.x = wal0->x;
+                        pos.y = wal0->y;
+                        pos.z = getflorzofslope(sectorofwall(wal0-wall), pos.x, pos.y);
+
                         message("Outer wall coordinates must coincide for both components");
+                        OSD_Printf("wal0:%d (%d,%d)--(%d,%d)\n",wal0-wall, wal0->x,wal0->y,
+                                   wall[wal0->point2].x,wall[wal0->point2].y);
+                        OSD_Printf("wal1:%d (%d,%d)--(%d,%d)\n",wal1-wall, wal1->x,wal1->y,
+                                   wall[wal1->point2].x,wall[wal1->point2].y);
+
                         goto end_join_sectors;
                     }
                 }
 
+                if (delayerr)
+                    goto end_join_sectors;
+
                 if (joinstat == 3)
                 {
                     char askchars[2] = {'1', 'v'};
@@ -4683,9 +4729,47 @@ end_point_dragging:
                     if (movestat==1)
                         dx*=-1, dy*=-1, dz*=-1;
 
+                    moveonwp = 0;
+                    if (onwisvalid())
+                    {
+                        static int16_t ocollsectlist[MAXSECTORS];
+                        static uint8_t tcollbitmap[MAXSECTORS>>3];
+                        int16_t ocollnumsects=collnumsects[movestat], tmpsect;
+
+                        Bmemcpy(ocollsectlist, collsectlist[movestat], ocollnumsects*sizeof(int16_t));
+                        Bmemset(tcollbitmap, 0, sizeof(tcollbitmap));
+
+                        for (k=0; k<ocollnumsects; k++)
+                            for (WALLS_OF_SECTOR(ocollsectlist[k], j))
+                            {
+                                if (onextwall[j] < 0)
+                                    continue;
+
+                                tmpsect = sectorofwall(onextwall[j]);
+                                sectors_components(1, &tmpsect, 1,0);
+
+                                for (m=0; m<(numsectors+7)>>3; m++)
+                                    tcollbitmap[m] |= collsectbitmap[0][m];
+                                moveonwp = 1;
+                            }
+
+                        if (moveonwp)
+                        {
+                            int32_t movecol = movestat==0 ? 159 : editorcolors[11];
+                            for (i=0; i<numsectors; i++)
+                                if (tcollbitmap[i>>3]&(1<<(i&7)))
+                                    fillsector(i, editorcolors[12]);
+
+                            fade_editor_screen(editorcolors[12] | (movecol<<8));
+                            moveonwp = ask_if_sure("Also move formerly wall-connected sectors?",0);
+                            if (moveonwp==-1)
+                                goto end_join_sectors;
+                        }
+                    }
+
                     // now need to collect them wrt. the nextsector but also
                     // the yax-nextsector relation
-                    if (highlighted_sectors_components(1) != 2)
+                    if (highlighted_sectors_components(1,moveonwp) != 2)
                     {
                         message("Must not have TROR connections between the two components");
                         goto end_join_sectors;
@@ -4713,14 +4797,18 @@ end_point_dragging:
                         }
                     }
 
-                    // restore old components
+                    // restore old components, i.e. only the bunch sectors
-                    highlighted_sectors_components(0);
+                    highlighted_sectors_components(0,0);
 
                 }  // end if (needsdisp)
 
                 /*** construct the YAX connection! ***/
                 for (comp=0; comp<2; comp++)
                 {
+                    // walls
+                    for (j=0; j<numowals; j++)
+                        yax_setnextwall(outerwall[comp][j], comp^joinstat, outerwall[!comp][j]);
+
                     // sectors
                     for (k=0; k<collnumsects[comp]; k++)
                     {
@@ -4728,15 +4816,12 @@ end_point_dragging:
                         yax_setbunch(i, comp^joinstat, numyaxbunches);
                         SECTORFLD(i,stat, comp^joinstat) &= ~1;  // no plax
 
-                        // restore red walls
+                        // restore red walls AFTER setting nextwalls
+                        // (see checksectorpointer() for why)
                         for (WALLS_OF_SECTOR(i, j))
                             if (wall[j].nextwall < 0)
                                 checksectorpointer(j, i);
                     }
-
-                    // walls
-                    for (j=0; j<numowals; j++)
-                        yax_setnextwall(outerwall[comp][j], comp^joinstat, outerwall[!comp][j]);
                 }
 
                 Bmemset(hlsectorbitmap, 0, sizeof(hlsectorbitmap));
@@ -5936,7 +6021,7 @@ end_space_handling:
                 }
 #endif
                 Bmemset(hlsectorbitmap, 0, sizeof(hlsectorbitmap));
-                highlightsectorcnt = -1;
+                update_highlightsector();
 
                 Bmemset(show2dwall, 0, sizeof(show2dwall));
                 update_highlight();
@@ -8123,9 +8208,15 @@ static int32_t menuselect(void)
     return(-1);
 }
 
+static inline int32_t imod(int32_t a, int32_t b)
+{
+    if (a >= 0) return(a%b);
+    return(((a+1)%b)+b-1);
+}
+
 int32_t fillsector(int16_t sectnum, int32_t fillcolor)
 {
-    int32_t x1, x2, y1, y2, sy, y;
+    int32_t x1, x2, y1, y2, sy, y, daminy;
     int32_t lborder, rborder, uborder, dborder, miny, maxy, dax;
     int16_t z, zz, startwall, endwall, fillcnt;
 
@@ -8137,7 +8228,8 @@ int32_t fillsector(int16_t sectnum, int32_t fillcolor)
         col = fillcolor;
 
     lborder = 0; rborder = xdim;
-    uborder = 0; dborder = ydim16;
+    y = OSD_GetRowsCur();
+    uborder = (y>=0)?(y+1)*8:0; dborder = ydim16-STATUS2DSIZ2;
 
     if (sectnum == -1)
         return 0;
@@ -8169,8 +8261,12 @@ int32_t fillsector(int16_t sectnum, int32_t fillcolor)
     if (miny < uborder) miny = uborder;
     if (maxy >= dborder) maxy = dborder-1;
 
+    daminy = miny+2 - imod(miny+2,3);
+    if (sector[sectnum].floorz > minhlsectorfloorz)
+        daminy++;
+
 //+((totalclock>>2)&3)
-    for (sy=miny; sy<=maxy; sy+=3)	// JBF 20040116: numframes%3 -> (totalclock>>2)&3
+    for (sy=daminy; sy<=maxy; sy+=3)	// JBF 20040116: numframes%3 -> (totalclock>>2)&3
     {
         y = pos.y + ((sy-midydim16)<<14)/zoom;
 
@@ -8240,7 +8336,7 @@ int32_t fillsector(int16_t sectnum, int32_t fillcolor)
                 if (fillist[z+1] > rborder)
                     fillist[z+1] = rborder;
 
-                drawline16(fillist[z],sy, fillist[z+1],sy, col);  //editorcolors[fillcolor]
+                drawline16(fillist[z]+1,sy, fillist[z+1]-1,sy, col);  //editorcolors[fillcolor]
             }
         }
     }

polymer/eduke32/build/src/engine.c

@@ -878,20 +878,28 @@ void yax_drawrooms(void (*ExtAnalyzeSprites)(void), int32_t horiz, int16_t sectn
     g_nodraw = 0;
     scansector_collectsprites = 0;
 
-#ifdef ENGINE_CLEAR_SCREEN
+#if 1
-    if (getrendermode()==0)
+//def ENGINE_CLEAR_SCREEN
+    if (editstatus==1)
     {
-        begindrawing();
+        if (getrendermode()==0)
-        for (i=0; i<xdimen*ydimen; i++)
+        {
-            *((char *)frameplace + i) = i;
+            begindrawing();
-        enddrawing();
+            j = 0;
-    }
+            for (i=0; i<xdimen*ydimen; i++)
+            {
+                *((char *)frameplace + i) = (char)j;
+                j = (j+1)%xdimen;
+            }
+            enddrawing();
+        }
 #ifdef USE_OPENGL
-    else
+        else
-    {
+        {
-        bglClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
+            bglClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
-    }
+        }
 #endif
+    }
 #endif
 
     for (cf=0; cf<2; cf++)
@@ -1554,11 +1562,33 @@ int32_t clipmapinfo_load(const char *filename)
 #define WALLS_ARE_CONSISTENT(k) ((wall[k].x == x2 && wall[k].y == y2)   \
                                  && ((wall[wall[k].point2]).x == x1 && (wall[wall[k].point2]).y == y1))
 
+static int32_t getscore(int32_t w1c, int32_t w1f, int32_t w2c, int32_t w2f)
+{
+    int32_t minflor, maxceil;
+
+    if (w1c > w1f)
+        swaplong(&w1c, &w1f);
+    if (w2c > w2f)
+        swaplong(&w2c, &w2f);
+
+    // now: c <= f for each "wall-vline"
+
+    maxceil = max(w1c, w2c);
+    minflor = min(w1f, w2f);
+
+    return minflor-maxceil;
+}
+
 const int16_t *chsecptr_onextwall = NULL;
 
 int32_t checksectorpointer(int16_t i, int16_t sectnum)
 {
     int32_t j, k, startwall, endwall, x1, y1, x2, y2, numnewwalls=0;
+    int32_t bestnextwall=-1, bestnextsec=-1, bestwallscore=INT32_MIN;
+    int32_t cz[4], fz[4], tmp[2], tmpscore=0;
+#ifdef YAX_ENABLE
+    int16_t cb[2], fb[2];
+#endif
 
 #if 0
     if (checksectorpointer_warn && (i<0 || i>=max(numwalls,newnumwalls)))
@@ -1589,6 +1619,7 @@ int32_t checksectorpointer(int16_t i, int16_t sectnum)
 
     if (chsecptr_onextwall && (k=chsecptr_onextwall[i])>=0 && wall[k].nextwall<0)
     {
+        // old next wall found
         if (WALLS_ARE_CONSISTENT(k))
         {
             j = sectorofwall(k);
@@ -1620,19 +1651,57 @@ int32_t checksectorpointer(int16_t i, int16_t sectnum)
             // The nextwall relation should be definitely one-to-one at all times!
             if (wall[k].nextwall>=0 && wall[k].nextwall != i)
                 continue;
+#ifdef YAX_ENABLE
+            yax_getbunches(sectnum, &cb[0], &fb[0]);
+            yax_getbunches(j, &cb[1], &fb[1]);
 
-            if (sectnum != -2 && numnewwalls==0)  // -2 means dry run
+            if ((cb[0]>=0 && cb[0]==cb[1]) || (fb[0]>=0 && fb[0]==fb[1]))
             {
-                wall[i].nextsector = j;
+                tmpscore = INT32_MAX;
-                wall[i].nextwall = k;
+            }
-                wall[k].nextsector = sectnum;
+            else
-                wall[k].nextwall = i;
+#endif
+            {
+                getzsofslope(sectnum, x1,y1, &cz[0],&fz[0]);
+                getzsofslope(sectnum, x2,y2, &cz[1],&fz[1]);
+                getzsofslope(j, x1,y1, &cz[2],&fz[2]);
+                getzsofslope(j, x2,y2, &cz[3],&fz[3]);
+
+                tmp[0] = getscore(cz[0],fz[0], cz[2],fz[2]);
+                tmp[1] = getscore(cz[1],fz[1], cz[3],fz[3]);
+
+                if ((tmp[0]^tmp[1]) >= 0)
+                    tmpscore = tmp[0]+tmp[1];
+                else
+                    tmpscore = max(tmp[0], tmp[1]);
+            }
+
+            if (bestnextwall == -1 || tmpscore > bestwallscore)
+            {
+                bestwallscore = tmpscore;
+                bestnextwall = k;
+                bestnextsec = j;
             }
 
             numnewwalls++;
         }
     }
 
+    // sectnum -2 means dry run
+    if (bestnextwall >= 0 && sectnum!=-2)
+#ifdef YAX_ENABLE
+        // be conservative in case if score <=0 (meaning that no wall area is mutually
+        // visible) -- it could be that another sector is a better candidate later on
+        if ((yax_getnextwall(i, 0)<0 && yax_getnextwall(i, 1)<0) || bestwallscore>0)
+#endif
+        {
+//    initprintf("w%d new nw=%d (score %d)\n", i, bestnextwall, bestwallscore)
+            wall[i].nextsector = bestnextsec;
+            wall[i].nextwall = bestnextwall;
+            wall[bestnextwall].nextsector = sectnum;
+            wall[bestnextwall].nextwall = i;
+        }
+
     return numnewwalls;
 }
 
@@ -4512,6 +4581,9 @@ static void drawalls(int32_t bunch)
         }
         if ((nextsectnum < 0) || (wal->cstat&32))   //White/1-way wall
         {
+#ifdef YAX_ENABLE
+            int16_t ynw[2];
+#endif
             globalorientation = (int32_t)wal->cstat;
             if (nextsectnum < 0) globalpicnum = wal->picnum;
             else globalpicnum = wal->overpicnum;
@@ -4545,7 +4617,12 @@ static void drawalls(int32_t bunch)
             wallscan(x1,x2,uplc,dplc,swall,lwall);
 #ifdef YAX_ENABLE
             // TODO: slopes?
-            if (globalposz > sec->floorz && (x = yax_getnextwall(wallnum, YAX_FLOOR)) >= 0 && wall[x].nextwall>=0)
+            ynw[0] = yax_getnextwall(wallnum, 0);
+            ynw[1] = yax_getnextwall(wallnum, 1);
+
+            if (globalposz > sec->floorz && ((ynw[1]>=0 && wall[ynw[1]].nextwall>=0)
+//                                             || (nextsectnum>=0 && yax_getbunch(sectnum,1)>=0)
+                    ))
             {
                 for (x=x1; x<=x2; x++)
                     if (dplc[x] > umost[x] && umost[x] <= dmost[x])
@@ -4554,7 +4631,9 @@ static void drawalls(int32_t bunch)
                         if (umost[x] > dmost[x]) numhits--;
                     }
             }
-            else if (globalposz < sec->ceilingz && (x = yax_getnextwall(wallnum, YAX_CEILING)) >= 0 && wall[x].nextwall>=0)
+            else if (globalposz < sec->ceilingz && ((ynw[0]>=0 && wall[ynw[0]].nextwall>=0)
+//                                                    || (nextsectnum>=0 && yax_getbunch(sectnum,0)>=0)
+                         ))
             {
                 for (x=x1; x<=x2; x++)
                     if (uplc[x] < dmost[x] && umost[x] <= dmost[x])

polymer/eduke32/build/src/osd.c

@@ -300,6 +300,11 @@ int32_t OSD_IsMoving(void)
     return (osdrowscur!=-1 && osdrowscur!=osdrows);
 }
 
+int32_t OSD_GetRowsCur(void)
+{
+    return osdrowscur;
+}
+
 int32_t OSD_GetTextMode(void)
 {
     return osdtextmode;

polymer/eduke32/source/astub.c

@@ -57,6 +57,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 #include <signal.h>
 
 static int32_t floor_over_floor;
+static int32_t g_fillCurSector = 0;
 
 // static char *startwin_labeltext = "Starting Mapster32...";
 static char setupfilename[]= "mapster32.cfg";
@@ -7473,7 +7474,12 @@ static void Keys2d(void)
 
     if (keystatus[KEYSC_TAB])  //TAB
     {
-        if (eitherSHIFT || eitherCTRL)
+        if (eitherCTRL)
+        {
+            g_fillCurSector = !g_fillCurSector;
+            message("Fill currently pointed-at sector: %s", ONOFF(g_fillCurSector));
+        }
+        else if (eitherSHIFT)
         {
             if (pointhighlight >= 16384)
             {
@@ -7538,6 +7544,16 @@ static void Keys2d(void)
 
 ///__bigcomment__
 
+    if ((i=tcursectornum)>=0 && g_fillCurSector && (hlsectorbitmap[i>>3]&(1<<(i&7)))==0)
+    {
+        int32_t col = editorcolors[4];
+#ifdef YAX_ENABLE
+        if (yax_getbunch(tcursectornum, YAX_FLOOR)>=0)
+            col = editorcolors[12];
+#endif
+        fillsector(tcursectornum, col);
+    }
+
 #ifdef YAX_ENABLE
     if (eitherCTRL && PRESSED_KEYSC(U) && tcursectornum>=0)  // Ctrl-U: unlink bunch sectors
     {