Waterfall_13
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I'm a bit confused.
What's the problem with doing it this way?
For the white-gold upgrade, first define the Royal Archer, and then the red upgrade with an archer.
For the red upgrade with an archer, first define the white-gold archer, and then the red upgrade with a bow.
For the red upgrade with a bow, define the basic creature of the red upgrade with an archer. And for the Royal upgrade, define the white-gold archer.
It seems like it should work perfectly, right?
Yeah, that's exactly what I did =). And it worked "almost" as intended.
However, with this setup, you won't be able to downgrade archers to crossbowmen or crossbowmen to archers.
That is, once you reach the second level, you won't be able to downgrade. You can only upgrade to the third level and then downgrade between them.
I wanted the player to be able to downgrade between them when they reach the second level (2nd grade and 2nd alt grade).