diff -r 2cfdc4bfc2be -r 13b6ebc53627 hedgewars/uCollisions.pas
--- a/hedgewars/uCollisions.pas	Wed May 02 18:41:44 2007 +0000
+++ b/hedgewars/uCollisions.pas	Wed May 02 21:37:08 2007 +0000
@@ -59,7 +59,7 @@
      X:= hwRound(Gear^.X);
      Y:= hwRound(Gear^.Y);
      Radius:= Gear^.Radius;
-     FillRoundInLand(X, Y, Radius-1, $FF);
+     ChangeRoundInLand(X, Y, Radius - 1, +1);
      cGear:= Gear
      end;
 Gear^.CollIndex:= Count;
@@ -70,7 +70,8 @@
 begin
 if Gear^.CollIndex < Count then
    begin
-   with cinfos[Gear^.CollIndex] do FillRoundInLand(X, Y, Radius-1, 0);
+   with cinfos[Gear^.CollIndex] do
+        ChangeRoundInLand(X, Y, Radius - 1, -1);
    cinfos[Gear^.CollIndex]:= cinfos[Pred(Count)];
    cinfos[Gear^.CollIndex].cGear^.CollIndex:= Gear^.CollIndex;
    Gear^.CollIndex:= High(Longword);