Dear Pharo users,

I develop software dedicated to the simulation of plant development and
3D architecture.

In the past, I used Java,��

but I am very interested in translating code
in Pharo. I appreciated very much the language and the course.

I have a question for you all :

During plant development (ontogeny), new organs appear, that are
gradually tranformed. For example, a bud can make a flower, and then a
fruit.

Organs are conveniently modelled as classes. During the course, I
learned that it was better to make several classes (bud, flower, fruit)
instead of a "fat class" such as "reproductive organ" with many
attributes and stages (bud stage, flower stage, fruit stage). I wonder
how to transform an object into another one, to represent for example
the fact that the flower may become a fruit.

Maybe a naive question ?