Unit consuming resources peridically

[Martititi]

Hello,
I'm trying to make a DOTA-like map, and I'd like to have a hero that builds buildings in order to produce creeps.

My goal is to make a technological tree, and at the very end, there is a sort of tank.
The problem is: I'd like to have this tank consume a resource (for example: fuel), but I've got no idea on the kind of solution there is.
Is there a way to implement it directly in the unit stats? Or do I have to make a trigger?

Thanks for giving an answer.

 

[Ceday]

Use mana for fuel and set mana regeneration to a negative value.

 

[Martititi]

Can a building produce mana?

 

[Ceday]

I mean the building builds tank, and tank has fuel.Not sure what you mean by building produce mana thing?

 

[Martititi]

The tanks would consume the fuel other buildings produce.

Let's take an example: I've got an oil drill and an oil refinery.

The factory will produce a tank, and the tank will peridodically use up 40 Oil to continue working. Otherwise, it would either stop, or be destroyed. I haven't decided...

So, if I take your solution:
Oil derricks and refineries produce mana (named fuel), and the tank will consume it.

 

[Ceday]

Ok then, also add mana to oil derrecks.

Now both oil derrecks and tanks have fuel(mana).

Then you can add to tank an ability which takes mana from oil derreck.Also add an ability to oil derreck which gives mana to tank if you want.

If you want oil derrecks constantly produce fuel, set mana regen to positive, if not set it to 0.

 

[Martititi]

Oh. Nice.
Thanks.