diff -r bcbf029e6b08 -r 0eb97cf4c78e hedgewars/uLandTexture.pas
--- a/hedgewars/uLandTexture.pas	Wed Nov 12 22:47:43 2014 +0900
+++ b/hedgewars/uLandTexture.pas	Fri Nov 14 17:00:47 2014 +0300
@@ -129,13 +129,13 @@
                     while isEmpty and (ty < TEXSIZE) do
                         begin
                         isEmpty:= LandPixels[ly + ty, lx] and AMask = 0;
-                        if isEmpty then isEmpty:= LandPixels[ly + ty, lx + TEXSIZE-1] and AMask = 0;
+                        if isEmpty then isEmpty:= LandPixels[ly + ty, Pred(lx + TEXSIZE)] and AMask = 0;
                         inc(ty)
                         end;
                     while isEmpty and (tx < TEXSIZE-1) do
                         begin
                         isEmpty:= LandPixels[ly, lx + tx] and AMask = 0;
-                        if isEmpty then isEmpty:= LandPixels[ly + TEXSIZE-1, lx + tx] and AMask = 0;
+                        if isEmpty then isEmpty:= LandPixels[Pred(ly + TEXSIZE), lx + tx] and AMask = 0;
                         inc(tx)
                         end;
                     // then search every other remaining. does this sort of stuff defeat compiler opts?