Limiting units, after upgrade possible?

03-07-2011, 04:39 AM

I'm wondering if there is a way to limit the construction of a particular unit (to 1 in this case), while this unit is alive, but has been upgraded into a new (different) unit.

IE: If someone wanted to limit the construction of 1x Town Hall per player, even after they have upgrade it to a Keep/Castle (different units) etc. I can't seem to find a way to do this with triggers but i'm still pretty new..

03-10-2011, 06:12 PM	#2
MLB	Use a trigger with the generic unit event, with 'unit finishes upgrading' or so, and make it limit the building count of the town hall to 0 then. When the upgraded one is destroyed, set it to 1 again.

03-12-2011, 04:23 AM

galinth

Thanks! This worked, but I had to make 3 triggers for this.. Seems like there should be a more simplified way though. I'll paste the trigger info if anyone else was curious about this.

Trigger:

Structure_A Initial Rule

Events

Map initialization

Conditions

Actions

Player - Limit training of Structure_A to 1 for Player 1 (Red)

First trigger limits default structure to limit of 1

Trigger:

Structure_A Constructed

Events

Unit - A unit owned by Player 1 (Red) Finishes construction

Conditions

(Unit-type of (Triggering unit)) Equal to Structure_A

Actions

Player - Limit training of Structure_A to 0 for Player 1 (Red)

Second trigger prevents more Structure_A's from being built after it has been upgraded into a different structure

Trigger:

Structure Dies

Events

Unit - A unit owned by Player 1 (Red) Dies

Conditions

Or - Any (Conditions) are true

Conditions

(Unit-type of (Triggering unit)) Equal to Structure_A

(Unit-type of (Triggering unit)) Equal to Structure_B

(Unit-type of (Triggering unit)) Equal to Structure_C

(Unit-type of (Triggering unit)) Equal to Structure_D

Actions

Player - Limit training of Structure_A to 1 for Player 1 (Red)

Third trigger allows reconstruction of original structure, if destroyed in any original/upgraded form

03-12-2011, 04:24 PM	#4
tooltiperror	What if it's removed by trigger? I don't think RemoveUnit fires off a unit dies event. It'd be better to use an indexer to track when a unit leaves the map. You could also base a dummy ability on that footman spell like an indexer will internally, because a unit will deactivate it when it is removed, dies, et cetera.