Fake Supply System

Greetings.

How would you go about making a fake supply system?

I have a map that spawns units periodically, and I'd like the spawner trigger to not make a unit if the player already has a certain number of those units. Each unit takes 1 supply. In an attempt to keep too many actions from happening on a periodic trigger, I made it so that simply whenever a unit like this is spawned (or summoned, in the case of resurrection), it adds 1 to the appropriate integer variable, and whenever 1 dies, it takes one off. If the integer is equal to or greater than the limit, it doesn't spawn.

This method works almost perfectly, except once in a great while it seems to be willing to allow a player to spawn more than their share of units.

I thought that it would be possible to check to see if a player's currently supply was at a certain amount, but I haven't been able to find that.

Am I missing a better trigger idea? General useful comments or trigger-speak answers are very welcome.

If you could describe the spawn system that could be quite useful to understanding your problem.

Finding the supply used by a player is really easy, it's under player - property, food used.

Great, thanks. I guess I was looking for "supply" and didn't notice "food". Silly me.

If all of the units count as one supply then just use the count living units owned by player trigger, if not then just assign a custom number to each unit or keep track of them in varables and then keep checking the current # with the total amount.

And once in a very great while food will still allow an extra unit or two...

Either way, if you check the total # and it's greater than the max, just remove one of the units until its back to the max.

Yea, wc3jass3, the first method is what I mentioned not wanting to do in a periodic event, and the second is what I was doing before I posted this thread. But since Grater pointed out the trigger condition I wanted, I've got the system set up and running.

Thanks, fellows, for all your help.