Bitmaps or Drawing?

[Bry4bry2000]

I am making a "Zelda"/"Shining Force II" type computer game in SDL. My question is, should I use bitmaps as my background, or should I draw the backgrounds. It seems to me that using the bitmaps would be simpler, but then the user could mess with my pictures. And if you used pure drawing then it'd for one be quite a big program, and seems to be overly complicated. Anyways which should I do?

Thanks in advance,
Brian

[Mike Harnad]

but then the user could mess with my pictures
This would be a problem only if you stored them as external files.

[NigelQ]

This would be a problem only if you stored them as external files.

...that were not somehow "obscured"

- Nigel