[General] How do I limit training to one per group?

[normalice]

I want to set it up such that a player can only train one unit from a group - not one of a certain type of unit, but just one unit.

i.e. they could train 1 footman or 1 gyrocopter, but not one of each. Any ideas?

 

[Chaosy]

deny a unit from being trained by doing:

• deny
  • Events
    • Unit - A unit Is issued an order with no target
  • Conditions
    • (Issued order) Equal to (Order(yourunittype))
  • Actions
    • Wait 0.00 seconds
    • Custom script: call IssueImmediateOrderById(GetOrderedUnit(), 851976)

 

[normalice]

well, i got something like that working, however now I have the problem of "what if unit training is cancelled?" I need to be able to restore the options, but don't really see a way of detecting the cancellation of a specific unit type.

 

[Arrr]

you can try giving to the units in the group some requirement, and when the building/whatever has finished training, remove the required thing
sry for eng

 

[defskull]

The system is in the map.

To kill the unit and reset the system, just select the unit, it will die and reset the selection.

 

[normalice]

The system is in the map.

To kill the unit and reset the system, just select the unit, it will die and reset the selection.

that's for one unit. I wanted to impose the limitation across a group.

 

[Xonok]

Dependency equivalents.

Create a new unit that you won't use anywhere. Set the group as its dependency equivalents. Then use the limit action on this unit type and it'll consider all units in the group to be the same type.

 

[defskull]

I still don't see it very clearly on what you actually want.
Can you give me an example and more brief ?

i.e. they could train 1 footman or 1 gyrocopter, but not one of each. Any ideas?

I tried to do the system based on this.

 

[normalice]

I still don't see it very clearly on what you actually want.
Can you give me an example and more brief ?


I tried to do the system based on this.

well, the system you proposed still allows you to build, say, 20 barracks and train 20 units (if the whim arose) initially. This can be fixed by limiting training at the onset, of course, but then you can still train more than one unit type as long as you start the training of one while the other is still training (add a second barracks to your map to see what I mean).

The solution I currently have is to set the limitations when training is began rather than waiting until it ends. This works well, unless the building is destroyed during training - then I have no way of making everything available for training again.

 

[Xonok]

Read my post. You only need 1 trigger action. The only downside is that when the limit has been reached, then the unit will not be shown on the training command card at all. (until it becomes trainable again)

 

[normalice]

Read my post. You only need 1 trigger action. The only downside is that when the limit has been reached, then the unit will not be shown on the training command card at all. (until it becomes trainable again)

that's actually exactly what I want, so... not a downside.

Dependency equivalents.

Then use the limit action on this unit type and it'll consider all units in the group to be the same type.

I created a unit with the dependency equivalents of 'footman' and 'rifleman'. Then limited training of the unit to one, but could still create footmen and riflemen without limit.

explain! explain!

 

[Xonok]

My bad, I forgot to think about what way the dependency equivalents are checked.
Make the dummy unit type a dependency equivalent of each unit type that it's equivalent to. The reason this should work is that the game only checks equivalents one way (which is why the following tutorial works).

I wrote a tutorial on something similar a while ago.
https://www.hiveworkshop.com/forums/miscellaneous-tutorials-456/techtree-vs-techweb-235845/

 

[normalice]

Make the dummy unit type a dependency equivalent of each unit type that it's equivalent to.

i don't know what this means :-(

For the dummy unit, in the field "Techtree - Dependency Equivalents" I have "Footman, Rifleman". Then in the scripts I limit training of 'dummy' to one. That's what I gather from what you've written. What am I doing wrong?

 

[Xonok]

Try the other way around.

For each unit in the group, set the dummy unit to be a dependency equivalent.
You did the other way around as I suggested, but I was wrong.

 

[normalice]

Try the other way around.

For each unit in the group, set the dummy unit to be a dependency equivalent.
You did the other way around as I suggested, but I was wrong.

wouldn't i need to train a dummy unit in order to make anything in the group then?

 

[Xonok]

Not really. That's the beauty of this suggestion.

 

[normalice]

Not really. That's the beauty of this suggestion.

hmm, tried it. But imposing a limitation on the dummy unit doesn't limit the group.

 

[Xonok]

You are right. I hadn't anticipated this.

In this case you'll need a more complicated approach. The key functions are those:

• Untitled Trigger 001
  • Events
    • Unit - A unit Begins training a unit
    • Unit - A unit Cancels training a unit
    • Unit - A unit Finishes training a unit
  • Conditions
  • Actions

Wish my simple approach worked, but oh well.

Additionally you'll need to know when a unit is permanently dead.

 

[normalice]

You are right. I hadn't anticipated this.

In this case you'll need a more complicated approach. The key functions are those:

• Untitled Trigger 001
  • Events
    • Unit - A unit Begins training a unit
    • Unit - A unit Cancels training a unit
    • Unit - A unit Finishes training a unit
  • Conditions
  • Actions

Wish my simple approach worked, but oh well.

Additionally you'll need to know when a unit is permanently dead.

yeah, that's basically what I'm doing. The problem comes from when a building that is training one of these units is destroyed during training. I have no way to detect it and thus re-increase the cap.

 

[Xonok]

You'll need a unit indexer for units in this case(because they may get resurrected after death) and the "any unit dies" event for buildings.

 

[normalice]

You'll need a unit indexer for units in this case(because they may get resurrected after death) and the "any unit dies" event for buildings.

alright, but how do I determine if the building that dies was training something from the group I want to limit?

 

[Xonok]

When a building starts training a unit it is given a non-target order with the rawcode of the unit. Catch those and keep track of them. I'm not sure if the order is given when a unit is added to the queue or only when it actually starts training. If adding to queue doesn't trigger any events, then it's quite irrelevant and unusable for this purpose though.

Alternately you can do the limiting so that when a unit is built above the limit, then you remove and refund it.