47     } 
else if (y < (
int)
MapMaxY()) {
 
   52   } 
else if (x < (
int)
MapMaxX()) {
 
   55     } 
else if (y < (
int)
MapMaxY()) {
 
   63     } 
else if (y < (
int)
MapMaxY()) {
 
   87   int hminnw = 
min(hnorth, hwest);
 
   88   int hmines = 
min(heast, hsouth);
 
   89   int hmin = 
min(hminnw, hmines);
 
   91   if (h != NULL) *h = hmin;
 
   93   int hmaxnw = 
max(hnorth, hwest);
 
   94   int hmaxes = 
max(heast, hsouth);
 
   95   int hmax = 
max(hmaxnw, hmaxes);
 
   99   if (hnorth != hmin) r |= 
SLOPE_N;
 
  100   if (hwest  != hmin) r |= 
SLOPE_W;
 
  101   if (heast  != hmin) r |= 
SLOPE_E;
 
  102   if (hsouth != hmin) r |= 
SLOPE_S;
 
  119   uint x = 
TileX(tile);
 
  120   uint y = 
TileY(tile);
 
  173   if (h != NULL) *h = z;