Need help with a new unit-training way

[EMPerror]

Ok, i was planning on making a map with a different way to produce buildings.

This is how it works :
U choose a builder and u build a... say...barracks. Now, the barracks doesnt produce units, instead, you put a peasant in the barracks and, after a training cycle, it turns into a footman.

I tried a couple of different ways to do this, but they didnt work. So, anyone can help?

 

[Day-Elven]

You can remove peasant and create a fighter after some time with triggers.
Smth like
______________________________________
Barracks begins casting an ability

Remove target unit of ability beig cast
Wait ***
Create unit of type
______________________________________

 

[Eleandor]

Use something similar to the sacrifical pit? It turns acolytes into shades... Don't know if it's hardcoded, so you might want to check it out

Edit: apparently it's hardcoded and it always turns acolytes into shades. But what you could do to solve that is whenever a shade is created, you replace it by a footman...

 

[EMPerror]

ok, i made it a different way but im running into a really dumb bug

what i did was, turned all buildings into transports. So, for example, if i want to train a footman, i put a unit in the barracks. The footman has a requirement - a unit named "A Peasant". When a peasant enters the barracks, the peasant it removed, and the "A Peasant" unit is created. Then u can create the footman. When the footman is trained, the "A peasant" unit is removed.

I did exactly the same for other units, like rifleman, knight and mortars, with the difference that the knight requires a footman and the mortar requires riflemen.

It works perfectly for them, except the footman. When u finish training, the "A peasant" unit isnt removed, and u can make as much footmen as u like. I have absolutely no idea how to fix this, as it is the same trigger with different values.

 

[Day-Elven]

Make it all in one trigger with loop. I'm sure it'll fix the problem.