Terran_Barracks unit said unable to train about bwapi HOT 7 CLOSED

If you need a handy ID -> type lookup while debugging you can use https://docs.google.com/spreadsheets/d/1jlYDkXW2pQey1oGJlQRBiGjdMs0kfrdHAwzVI2zAjrU/edit

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It's good to know for anyone using the debugger to find the reason of their bug.

I found the actual problem in my recruitment process elsewhere, so yeah, I was misled.

I'm closing this since the issue is not relevant for the BWAPI. Thanks for your dedication.

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You can not "train" a Barracks. You can only "build" a Barracks because it is a building.
Expected values:

someSCV->canTrain(Terran_Barracks) == false
someSCV->canBuild(Terran_Barracks) == true
someBarracks->canTrain(Terran_Marine) == true
someBarracks->canBuild(Terran_Marine) == false

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Wait, I may have been not specific enough on my question:

This is what I have so far with my tests:

someBarracks->canTrain(Terran_Marine) == true
someBarracks->canTrain() == false
someCommandCenter->canTrain(Terran_Marine) == true

Is that normal?

Otherwise @dgant that is how I understood it so far, yes

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canTrain() can return false depending on the state of the unit at the time you invoke it. For example, incomplete or floating Barracks can not train units. You can't train a Marine if you have no minerals. See

As for your Command Center, I suspect the most likely cause is the variable you think is referring to a Command Center actually referring to a Barracks. A bug of this nature seems very unlikely. I would double check the identity of the unit to be sure.

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I'm surprised myself, to be honest.

Here is what my debugger says, when the onUnitComplete(BWAPI::Unit unit) event is called (so all following tests are done in the same scope)

unit->getType() == 106
unit->canTrain(BWAPI::UnitTypes::Terran_Marine, true, true) == true
unit->canTrain(true) == false

I think unit with id 106 is the Terran_Command_Center, am I wrong?

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I get two different outputs when evaluating the functions in the debugger or in the code itself.

The output of my debugger is still the same, however here is what is done in my code:

std::cout << "Unit of type " << unit->getType() << "; can train Marine? " << unit->canTrain(BWAPI::UnitTypes::Terran_Marine) << "; can train? " << unit->canTrain() << std::endl;

Outputs

Unit of type Terran_Command_Center; can train Marine? 0; can train? 1

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