Am Samstag, den 20.01.2007, 17:32 +0200 schrieb Yuval Ronen:
So I believe it boils down to providing a runtime-changeable conversion ratios for some units (currency), in addition to the currently fixed ratios for other units (physics). Whether or not you want to support it, is a completely different matter...
Worse, I think you can't fix the set of currencies at compile-time. Even if you were willing to change your program whenever a new currency is added to the set of world currencies (admittedly relatively rarely but it does happen), you might quickly want to add stuff like wheat or stocks (if only for completeness sake). Any ideas how to deal with this properly?
Yuval
Aristid PS: Now I think I'll check out the thing you're discussing about.