diff -r ca60b5638fff -r 5b74906c14bb hedgewars/GSHandlers.inc
--- a/hedgewars/GSHandlers.inc	Sun Mar 14 23:46:46 2010 +0000
+++ b/hedgewars/GSHandlers.inc	Mon Mar 15 02:23:40 2010 +0000
@@ -167,10 +167,13 @@
 procedure doStepFallingGear(Gear: PGear);
 var isFalling, isCollV, isCollH: boolean;
     tmp: QWord;
+    tdX, tdY: hwFloat;
 begin
 Gear^.State:= Gear^.State and not gstCollision;
 isCollV:= false; 
 isCollH:= false;
+tdX:= Gear^.dX;
+tdY:= Gear^.dY;
 
 if Gear^.dY.isNegative then
     begin
@@ -204,9 +207,11 @@
 
 if isCollV and isCollH and Gear^.AdvBounce then
        begin
-       tmp:= Gear^.dX.QWordValue;
-       Gear^.dX.QWordValue:= Gear^.dY.QWordValue;
-       Gear^.dY.QWordValue:= tmp;
+       Gear^.dX:= hwAbs(tdY)*hwSign(Gear^.dX)*Gear^.Elasticity*Gear^.Friction;
+       Gear^.dY:= hwAbs(tdX)*hwSign(Gear^.dY)*Gear^.Elasticity;
+       //tmp:= Gear^.dX.QWordValue;
+       //Gear^.dX.QWordValue:= Gear^.dY.QWordValue;
+       //Gear^.dY.QWordValue:= tmp;
        end;
 
 if isFalling then Gear^.dY:= Gear^.dY + cGravity;