some long outstanding 'freeze' bug..

having a function pause(){} conflicts with linux version of pause. So instead
of doing nothing... we were forced to pause(2)

2 files changed, 3 insertions, 3 deletions

diff --git a/noncore/games/go/goplayutils.c b/noncore/games/go/goplayutils.c
index 9e2ce4c..91c6db2 100644
--- a/noncore/games/go/goplayutils.c
+++ b/noncore/games/go/goplayutils.c
@@ -727,385 +727,385 @@ short x, y, z;
     {
       nlcGroup.indx = nlcGroup.indx + 1;
       nlcGroup.v[nlcGroup.indx] = gMap[groupIDs[x][y - 1]];
     }
   if ((y < maxPoint) && (bord[x][y + 1] == him))
     {
       nlcGroup.indx = nlcGroup.indx + 1;
       nlcGroup.v[nlcGroup.indx] = gMap[groupIDs[x][y + 1]];
     }
   /* fix liberty count for affected groups */
   grpMark = grpMark + 1;
   for (i = 1; i <= nlcGroup.indx; i++)
       if (gList[nlcGroup.v[i]].groupMark != grpMark)
         {
           if (gList[nlcGroup.v[i]].atLevel != tryLevel)
             {
               playMark = playMark + 1;
                   playStack[playMark].kind = chLib;
                   playStack[playMark].gID = nlcGroup.v[i];
                   playStack[playMark].uval.chLib.oldLevel = 
 		               gList[nlcGroup.v[i]].atLevel;
                   playStack[playMark].uval.chLib.oldLC =
 		               gList[nlcGroup.v[i]].libC;
             }
           gList[nlcGroup.v[i]].groupMark = grpMark;
           gList[nlcGroup.v[i]].atLevel = tryLevel;
           spanGroup(gList[nlcGroup.v[i]].lx, gList[nlcGroup.v[i]].ly, &pPlist);
           gList[nlcGroup.v[i]].libC = pPlist.indx;
         }
 } /* plei */
 
 saveState()
 { /* saveState */
   playMark = 0;
   tryLevel = 0;
   newGID = maxGroupID;
 } /* saveState */
 
 /*
   undoes a move sequence back to uMark
 */
 undoTo(uMark)
 short uMark;
 { /* undoTo */
   short i, xl, yl;
 #ifdef DEBUG
   printf( "undoTo\n" );
 #endif
   for (i = playMark; i >= uMark + 1; i--)
       if (playStack[i].kind == rem)
         {
           xl = playStack[i].uval.rem.xl;
           yl = playStack[i].uval.rem.yl;
           bord[xl][yl] = playStack[i].uval.rem.who;
           groupIDs[xl][yl] = playStack[i].gID;
           if (showTrees)
             sstone(playStack[i].uval.rem.who, xl, yl,
 	           playStack[i].uval.rem.sNumber);
         }
       else if (playStack[i].kind == add)
         {
           xl = playStack[i].uval.add.xl;
           yl = playStack[i].uval.add.yl;
           bord[xl][yl] = 0;
           groupIDs[xl][yl] = 0;
           tryLevel = tryLevel - 1;
           newGID = playStack[i].uval.add.nextGID;
           if (showTrees)
             rstone(xl, yl);
         }
       else if (playStack[i].kind == reMap)
         gMap[playStack[i].gID] = playStack[i].uval.reMap.oldGID;
       else /* change libs of group - gID is pre-mapped */
           {
             gList[playStack[i].gID].libC = playStack[i].uval.chLib.oldLC;
             gList[playStack[i].gID].atLevel = playStack[i].uval.chLib.oldLevel;
           }
   playMark = uMark;
 } /* undoTo */
 
 /*
   restores the state of the world after trying a move sequence
 */
 restoreState()
 { /* restoreState */
 #ifdef DEBUG
   printf( "restoreState\n" );
 #endif
   if (playMark > 0)
     {
       undoTo(0);
       playMark = 0;
       tryLevel = 0;
     }
 } /* restoreState */
 
 /* exception bpt; */
 
 
 /*
   returns true if (the group (at gx, gy) is saveable.
   if so, returns the point to play at in savex, savey
 */
 short saveable(gx, gy, savex, savey)
 short gx, gy, *savex, *savey;
 { /* saveable */
   short me, him, gx1, gx2, i, j, smark, mark2, tl, result;
   char sChar;
   sPointList dList;
   point tp;
   short libList[maxSPoint+1];
 #ifdef DEBUG
   printf( "saveable\n" );
 #endif
   dbStop = TRUE;
   me = bord[gx][gy];
   him = -me;
   if (me == 1)
     sChar = '|';
   else
     sChar = '>';
 /*  write(sChar); */
   spanGroup(gx, gy, &plist3); /* find my liberties */
   if (adjInAtari) /* one of my options is to kill */
     {
       listAdjacents(gx, gy, &aList);
       for (i = 1; i <= aList.indx; i++)
         if (gList[aList.v[i]].libC == 1)
             {
               spanGroup(gList[aList.v[i]].lx, gList[aList.v[i]].ly,
  				&pList1); /* find it's liberty */
               plist3.indx = plist3.indx + 1;
               plist3.p[plist3.indx].px = pList1.p[1].px;
               plist3.p[plist3.indx].py = pList1.p[1].py;
             }
     }
   for (i = 1; i <= maxSPoint; i++)
     libList[i] = -1;
   if ((utilPlayLevel > 4) &&
      (gList[gMap[groupIDs[gx][gy]]].libC > 1)) /* account for diags */
     {
       listDiags(gx, gy, &dList);
       j = 0;
       i = plist3.indx;
       while ((j < dList.indx) &&
             (i < maxSPoint))
         {
           j = j + 1;
           i = i + 1;
           libList[i] = 100;
               plist3.p[i].px = dList.p[j].px;
               plist3.p[i].py = dList.p[j].py;
         }
       plist3.indx = i;
     }
   if (plist3.indx > 1) /* sort by decreasing lib count */
     {
       for (i = 1; i <= plist3.indx; i++)
         if (libList[i] != 100)
             {
               mark2 = playMark;
               tryPlay(plist3.p[i].px, plist3.p[i].py, me);
               libList[i] = gList[gMap[groupIDs[gx][gy]]].libC;
               if (libList[i] > treeLibLim) /* i'm safe */
                 {
                   *savex = plist3.p[i].px;
                   *savey = plist3.p[i].py;
                   result = TRUE;
                   goto one;
                 }
               undoTo(mark2);
             }
       for (i = 1; i <= plist3.indx - 1; i++)
         for (j = i + 1; j <= plist3.indx; j++)
           if (libList[i] < libList[j])
             {
               tl = libList[i];
               libList[i] = libList[j];
               libList[j] = tl;
               tp = plist3.p[i];
               plist3.p[i] = plist3.p[j];
               plist3.p[j] = tp;
             }
     }
   for (i = 1; i <= plist3.indx; i++)
     {
       *savex = plist3.p[i].px;
       *savey = plist3.p[i].py;
       if (legal[*savex][*savey])
         {
           smark = playMark;
           tryPlay(*savex, *savey, me);
-          pause();
+//pause();
           if (gList[gMap[groupIDs[*savex][*savey]]].libC > 1)
             if (gList[gMap[groupIDs[gx][gy]]].libC > treeLibLim)
               {
                 restoreState();
 /*                sClearChar(sChar, rXor); */
                 return TRUE;
               }
             else if (gList[gMap[groupIDs[gx][gy]]].libC > 1)
               if (! killable(gx, gy, &gx1, &gx2))
                 {
                   restoreState();
 /*                  sClearChar(sChar, rXor); */
                   return TRUE;
                 }
           undoTo(smark);
         }
     }
   result = FALSE;
 one:
   restoreState();
 /*  sClearChar(sChar, rXor); */
   return result;
 } /* saveable */
 
 /*
   marks unsavable groups as dead
 */
 markDead()
 { /* markDead */
   short i, j, gx, gy, result;
 #ifdef DEBUG
   printf( "markDead\n" );
 #endif
   for (i = 1; i <= maxGroupID; i++)
       if (killable(gList[i].lx, gList[i].ly, &gx, &gy))
         result = ! saveable(gList[i].lx, gList[i].ly, &gx, &gy);
       else
         result = FALSE;
   for (i = 0; i <= maxPoint; i++)
     for (j = 0; j <= maxPoint; j++)
       if (bord[i][j] == 0)
         ndbord[i][j] = 0;
       else if (gList[groupIDs[i][j]].isDead)
         ndbord[i][j] = 0;
       else
         ndbord[i][j] = bord[i][j];
 } /* markDead */
 
 /*
   marks groups with two eyes as live
 */
 MLspan(x, y, saw1, sawm1, size, sMark)
 short x, y, *saw1, *sawm1, *size, sMark;
   { /* span */
     if (ndbord[x][y] == 1)
       *saw1 = TRUE;
     else if (ndbord[x][y] == -1)
       *sawm1 = TRUE;
     else if (sGroups[x][y] == 0)
       {
         sGroups[x][y] = sMark;
         *size = *size + 1;
         if (x > 0)
           MLspan(x - 1, y, saw1, sawm1, size, sMark);
         if (x < maxPoint)
           MLspan(x + 1, y, saw1, sawm1, size, sMark);
         if (y > 0)
           MLspan(x, y - 1, saw1, sawm1, size, sMark);
         if (y < maxPoint)
           MLspan(x, y + 1, saw1, sawm1, size, sMark);
       }
   } /* span */
 
 short CLspan(x, y, numEyes, who)
 short x, y, *numEyes, who;
     { /* span */
       markBoard[x][y] = marker;
       if (ndbord[x][y] == 0)
           {
             if ((sList[sGroups[x][y]].sm != marker) &&
                (sList[sGroups[x][y]].w == who))
               {
                 sList[sGroups[x][y]].sm = marker;
                 if (sList[sGroups[x][y]].s > 6)
                   return TRUE;
                 *numEyes = *numEyes + 1;
                 if (*numEyes > 1)
                   return TRUE;
               }  
           }
       else if (bord[x][y] == who)
         {
           if ((x > 0) &&
              (markBoard[x - 1][y] != marker))
             if (CLspan(x - 1, y, numEyes, who)) return TRUE;
           if ((x < maxPoint) &&
              (markBoard[x + 1][y] != marker))
             if (CLspan(x + 1, y, numEyes, who)) return TRUE;
           if ((y > 0) &&
              (markBoard[x][y - 1] != marker))
             if (CLspan(x, y - 1, numEyes, who)) return TRUE;
           if ((y < maxPoint) &&
              (markBoard[x][y + 1] != marker))
             if (CLspan(x, y + 1, numEyes, who)) return TRUE;
         }
     return FALSE;
     } /* span */
 
 short checkLive(x, y)
 short x, y;
   { /* checkLive */
     short numEyes, who;
 #ifdef DEBUG
   printf( "checkLive\n" );
 #endif
     numEyes = 0;
     who = bord[x][y];
     marker = marker + 1;
     return CLspan(x, y, &numEyes, who);
   } /* checkLive */
 
 markLive()
 { /* markLive */
   short i, j, size, sMark = 0;
   short saw1, sawm1;
 #ifdef DEBUG
   printf( "markLive\n" );
 #endif
   initArray(sGroups);
   for (i = 0; i <= maxPoint; i++)
     for (j = 0; j <= maxPoint; j++)
       if ((sGroups[i][j] == 0) &&
          (ndbord[i][j] == 0))
         {
           size = 0;
           sMark = sMark + 1;
           sawm1 = FALSE;
           saw1 = FALSE;
           MLspan(i, j, &saw1, &sawm1, &size, sMark);
           sList[sMark].s = size;
           sList[sMark].sm = 0;
           if (sawm1)
             if (saw1)
               sList[sMark].w = 0;
             else
               sList[sMark].w = -1;
           else if (saw1)
             sList[sMark].w = 1;
           else
             sList[sMark].w = 0;
         }
   for (i = 1; i <= maxGroupID; i++)
       if (! gList[i].isDead)
         gList[i].isLive = checkLive(gList[i].lx, gList[i].ly);
 } /* markLive */
 
 /*
   generates the connection map and the protected point map.
 */
 genConnects()
 { /* genConnects */
   short x, y, numStones;
 #ifdef DEBUG
   printf( "genConnects\n" );
 #endif
   for (x = 0; x <= maxPoint; x++)
     for (y = 0; y <= maxPoint; y++)
       {
         connectMap[x][y] = 0;
         protPoints[x][y] = 0;
       }
   for (x = 0; x <= maxPoint; x++)
     for (y = 0; y <= maxPoint; y++)
       if (bord[x][y] == 1)   /* map connections to this stone */
         {
           if (x > 0)        /* direct connection */
             connectMap[x - 1][y] += 1;
           if (x < maxPoint)
             connectMap[x + 1][y] += 1;
           if (y > 0)
             connectMap[x][y - 1] += 1;
           if (y < maxPoint)
             connectMap[x][y + 1] += 1;
           if ((x > 0) && (y > 0) &&   /* diagonal connection */
              (bord[x - 1][y] == 0) && (bord[x][y - 1] == 0))
             connectMap[x - 1][y - 1] += 1;
           if ((x < maxPoint) && (y > 0) &&
              (bord[x + 1][y] == 0) && (bord[x][y - 1] == 0))
             connectMap[x + 1][y - 1] += 1;
           if ((x < maxPoint) && (y < maxPoint) &&
              (bord[x + 1][y] == 0) && (bord[x][y + 1] == 0))
             connectMap[x + 1][y + 1] += 1;
diff --git a/noncore/games/go/killable.c b/noncore/games/go/killable.c
index 3ed2d2e..23a133d 100644
--- a/noncore/games/go/killable.c
+++ b/noncore/games/go/killable.c
@@ -1,347 +1,347 @@
 /* By Stoney Ballard */
 /* Ported from Pascal to C by Todd R. Johnson */
 
 #include "go.h"
 #include "goplayutils.h"
 #include "amigo.h"
 
 extern intBoard bord, groupIDs;
 extern boolBoard legal;
 extern groupRec gList[maxGroup];
 extern short gMap[maxGroup], adjInAtari, adj2Libs, playMark, treeLibLim,
              utilPlayLevel, killFlag, depthLimit, dbStop, showTrees;
 extern pointList plist2;
 
 /*
   returns true if the group (at x, y) is killable.
   if so, returns the point to play at in killx, killy.
 */
 
   short me, him, depth, i, j, tryCount, tl, topMark, tkMark, mark2;
   char sChar;
   sPointList lList, dList;
   point tp;
   short libList[maxSPoint+1];
   short esc;
 
 short mtNbrs(x, y)
 short x, y;
   { /* mtNbrs */
     short n = 0;
     if ((x > 0) && (bord[x - 1][y] == 0))
       n = n + 1;
     if ((x < maxPoint) && (bord[x + 1][y] == 0))
       n = n + 1;
     if ((y > 0) && (bord[x][y - 1] == 0))
       n = n + 1;
     if ((y < maxPoint) && (bord[x][y + 1] == 0))
       n = n + 1;
     return n;
   } /* mtNbrs */
 
 short killTree(tx, ty, gx, gy, escape, tkMark)
 short tx, ty, gx, gy, *escape, tkMark;
     { /* killTree */
       short curMark, mark2, mark3, i, j, k, tl, dStart, result;
       sPointList lList1, lList2;
       short libList[maxSPoint+1];
       point tp;
       short esc = FALSE;
       tryCount = tryCount + 1;
       if (tryCount > tryLimit)
         {
           undoTo(tkMark);
 /*          for (i = 1; i <= depth - 1; i++)
             {
               sClearChar(sChar, rXor); 
             } */
           depth = 1;
 	  return FALSE;
         }
 /*      write(sChar); */
       depth = depth + 1;
       curMark = playMark;
       tryPlay(tx, ty, me); /* try my move */
-      pause();
+//      pause();
       if (gList[gMap[groupIDs[tx][ty]]].libC == 0) /* I'm dead */
 	{
 	result = FALSE;
 	goto one;
 	}
       else if (killFlag) /* I killed something of his */
 	{
 	result = TRUE;
 	goto one;
 	}
       else if (gList[gMap[groupIDs[gx][gy]]].libC > treeLibLim) /* safe */
 	{
 	result = FALSE;
 	goto one;
 	}
       else
         {
           sSpanGroup(gx, gy, &lList1); /* find his liberties */
           if (gList[gMap[groupIDs[tx][ty]]].libC == 1) /* he can kill me */
             {
               if (lList1.indx < maxSPoint) /* add that option to his list */
                 {
                   lList1.indx = lList1.indx + 1;
                   spanGroup(tx, ty, &plist2); /* find my liberty */
                       lList1.p[lList1.indx].px = plist2.p[1].px;
                       lList1.p[lList1.indx].py = plist2.p[1].py;
                 }
               else
 		{
 		result = FALSE;
 		goto one;
 		}
             }
           for (i = 1; i <= maxSPoint; i++)    /* init liblist so diags can be marked */
             libList[i] = -1;
           if ((utilPlayLevel > 4) &&
              (lList1.indx > 1) &&
              (gList[gMap[groupIDs[gx][gy]]].libC > 1)) /* try diags */
             {
               listDiags(gx, gy, &dList);
               j = 0;
               i = lList1.indx;
               while ((j < dList.indx) &&
                     (i < maxSPoint))
                 {
                   j = j + 1;
                   i = i + 1;
                   libList[i] = 0;     /* mark this as a diag */
                       lList1.p[i].px = dList.p[j].px;
                       lList1.p[i].py = dList.p[j].py;
                 }
               lList1.indx = i;
             }
           if (lList1.indx > 1) /* sort by decreasing lib count */
             {
               for (i = 1; i <= lList1.indx; i++)
                 if (libList[i] != 0)       /* diags are tried last */
                     {
                       mark2 = playMark;
                       tryPlay(lList1.p[i].px, lList1.p[i].py, him);
                       libList[i] = gList[gMap[groupIDs[gx][gy]]].libC;
                       if ((libList[i] > treeLibLim) ||
                          ((libList[i] > (depthLimit - depth)) &&
                           (libList[i] > 2)))
 			{
 			*escape = TRUE;
 			result = FALSE;
 			goto one;
 			}
                       undoTo(mark2);
                     }
               for (i = 1; i <= lList1.indx - 1; i++)
                 for (j = i + 1; j <= lList1.indx; j++)
                   if (libList[i] < libList[j])
                     {
                       tl = libList[i];
                       libList[i] = libList[j];
                       libList[j] = tl;
                       tp = lList1.p[i];
                       lList1.p[i] = lList1.p[j];
                       lList1.p[j] = tp;
                     }
             }
           for (i = 1; i <= lList1.indx + 1; i++) /* try his responses */
             {
               mark2 = playMark;
               if (i <= lList1.indx) /* try his move */
                   {
                     tryPlay(lList1.p[i].px, lList1.p[i].py, him); /* play his response */
-                    pause();
+//                    pause();
                     if (gList[gMap[groupIDs[lList1.p[i].px]
 		                           [lList1.p[i].py]]].libC < 2)
                       goto two; /* a bogus move */
                   }
               else if (gList[gMap[groupIDs[gx][gy]]].libC <= 1)
 			{
 			result = TRUE;
 			goto one;
 			}
               if (gList[gMap[groupIDs[gx][gy]]].libC > treeLibLim)
                 {
                   *escape = TRUE;
 		  result = FALSE;
 		  goto one;
                 }
               if (gList[gMap[groupIDs[gx][gy]]].libC > 1)
                 {  /* look at my responses */
                   sSpanGroup(gx, gy, &lList2); /* list his liberties */
                   dStart = lList2.indx + 1;
                   if (adjInAtari) /* he wins */
                      {
                        result = FALSE;
                        goto one;
                      }
                   if ((lList2.indx > 2) && adj2Libs) /* he wins */
                      {
                        result = FALSE;
                        goto one;
                      }
                   for (k = 1; k <= maxSPoint; k++)
                     libList[k] = -1;
                   if (utilPlayLevel > 4) /* account for diagonal moves */
                     {
                       listDiags(gx, gy, &dList);
                       j = 0;
                       k = lList2.indx;
                       while ((j < dList.indx) &&
                             (k < maxSPoint))
                         {
                           j = j + 1;
                           k = k + 1;
                           libList[k] = 100;
                               lList2.p[k].px = dList.p[j].px;
                               lList2.p[k].py = dList.p[j].py;
                         }
                       lList2.indx = k;
                     }
                   if (lList2.indx > 1) /* sort by increasing lib count */
                     {
                       for (k = 1; k <= lList2.indx; k++)
                         if (libList[k] != 100)     /* diags go last */
                             {
                               mark3 = playMark;
                               tryPlay(lList2.p[k].px, lList2.p[k].py, me);
                               libList[k] = gList[gMap[groupIDs[gx][gy]]].libC;
                               undoTo(mark3);
                             }
                       for (k = 1; k <= lList2.indx - 1; k++)
                         for (j = k + 1; j <= lList2.indx; j++)
                           if (libList[k] > libList[j])
                             {
                               tl = libList[k];
                               libList[k] = libList[j];
                               libList[j] = tl;
                               tp = lList2.p[k];
                               lList2.p[k] = lList2.p[j];
                               lList2.p[j] = tp;
                             }
                           else if ((libList[k] == libList[j]) &&
                                   (libList[k] == 1))
                             if (mtNbrs(lList2.p[k].px, lList2.p[k].py) <
                                mtNbrs(lList2.p[j].px, lList2.p[j].py))
                               {
                                 tl = libList[k];
                                 libList[k] = libList[j];
                                 libList[j] = tl;
                                 tp = lList2.p[k];
                                 lList2.p[k] = lList2.p[j];
                                 lList2.p[j] = tp;
                               }
                     }
                   for (j = 1; j <= lList2.indx; j++)
                     {
                       if (killTree(lList2.p[j].px, lList2.p[j].py, gx,
 				gy, &esc, tkMark))
                         goto two; /* this kills him */
                       if (esc && (j >= dStart))
                         {
                           result = FALSE;
                           goto one; /* don't bother with more diags if escapes */
                         }
                     }
                   result = FALSE;  /* none of my responses kills him */
                   goto one;
                 }
     two:
              undoTo(mark2);
            }
           result = TRUE; /* none of his responses saves him */
         }
     one:
       undoTo(curMark);
 /*      sClearChar(sChar, rXor); */
       depth = depth - 1;
       return result;
     } /* killTree */
 
 short tKillTree(tx, ty, gx, gy)
 short tx, ty, gx, gy;
   { /* tKillTree */
     short tkMark, escape;
     tryCount = 0;
     tkMark = playMark;
     return killTree(tx, ty, gx, gy, &escape, tkMark);
   } /* tKillTree */
 
 short killable(gx, gy, killx, killy)
 short gx, gy, *killx, *killy;
 { /* killable */
 #ifdef DEBUG
   printf( "killable\n" );
   showTrees = TRUE;
 #endif
   dbStop = TRUE;
   him = bord[gx][gy]; /* find out who I am */
   me = -him;
 /*  if (me == 1)
     sChar = '>';
   else
     sChar = '|'; */
 /*  write(sChar); */
   depth = 1;
   topMark = playMark;
   sSpanGroup(gx, gy, &lList); /* find his liberties */
   if (lList.indx == 1)
     {
       *killx = lList.p[1].px;
       *killy = lList.p[1].py;
       return TRUE;
     }
   else if (lList.indx > treeLibLim)
     return FALSE;
   else if (adjInAtari)
     return FALSE;
   else if ((lList.indx > 2) && adj2Libs)
     return FALSE;
   else
     {
       for (i = 1; i <= maxSPoint; i++)
         libList[i] = -1;
       if (utilPlayLevel > 4) /* account for diagonal moves */
         {
           listDiags(gx, gy, &dList);
           j = 0;
           i = lList.indx;
           while ((j < dList.indx) &&
                 (i < maxSPoint))
             {
               j = j + 1;
               i = i + 1;
               libList[i] = 100;
                   lList.p[i].px = dList.p[j].px;
                   lList.p[i].py = dList.p[j].py;
             }
           lList.indx = i;
         }
       if (lList.indx > 1) /* sort by increasing lib count */
         {
           for (i = 1; i <= lList.indx; i++)
             if (libList[i] != 100)  /* diags go last */
                 {
                   mark2 = playMark;
                   tryPlay(lList.p[i].px, lList.p[i].py, me);
                   libList[i] = gList[gMap[groupIDs[gx][gy]]].libC;
                   undoTo(mark2);
                 }
           for (i = 1; i <= lList.indx - 1; i++)
             for (j = i + 1; j <= lList.indx; j++)
               if (libList[i] > libList[j])
                 {
                   tl = libList[i];
                   libList[i] = libList[j];
                   libList[j] = tl;
                   tp = lList.p[i];
                   lList.p[i] = lList.p[j];
                   lList.p[j] = tp;
                 }
               else if ((libList[i] == libList[j]) &&
                       (libList[i] == 1))
                 if (mtNbrs(lList.p[i].px, lList.p[i].py) <
                    mtNbrs(lList.p[j].px, lList.p[j].py))
                   {