I "invented"

Produced Resources.
Produced Resources are resources you gain with time.
For example if you want to make a "Goldmine"-unit and want it to produce
one gold per second you can do that by using produced resources. Produced
Resources work like consumed resources (food),
but there are no consumers; only producers.
!I AM STILL NOT SURE IF THIS IS THE RIGHT WAY TO IMPLEMENT THIS!Maybe we should only add resource reqs for skills. So you can give negative reqs of a resource to the stop skill of a unit.
pull requestXML Syntax:
<?xml version="1.0" standalone="no"?>
<resource>
<image path="images/iron.bmp"/>
<type value="produced">
<interval value="30"/>
</type>
</resource>
I will add another aspect to this pull request (or make a new for this) if you want. These would be consumables with specific or zero damage (
like in gae)
It would be fairly easy to implement so tell me if you like the idea. For example for oil production; cars would consume the produced oil but will not die if oil is empty (they could still drive of course which would be strange but nevermind

)