Just take your background and redraw it:
| code: |
for c : 1 .. 400 drawfilloval (1 + c, 300, 30, 30, green) delay (100) drawfillbox (1, 1, 679, 300, red) drawfillbox (1, 300, 679, 479, blue) end for |
This works, but I think it's better structure if you keep all your drawing commands together, then put the delay after them, not having the drawing commands spread across the loop.
| code: |
for c : 1 .. 400 drawfillbox (1, 1, 679, 300, red) drawfillbox (1, 300, 679, 479, blue) drawfilloval (1 + c, 300, 30, 30, green) delay (100) end for |
It's more understandable this way. You can tell easily that the background (the two drawbox lines) are behind the circle.
This is more important in larger programs.
