If you have reached this point of the chapter and book, it means that your game is completed. Let's recap what we have learnt in terms of techniques, instead of topics:
Inheritance: We have implemented our trading system by using inheritance, and this gave us the possibility to explore it. In particular, we learnt a bit more about:
Abstract classes and methods: So that their full implementation is left to child classes
Protected variables: Which can be seen by some scripts but not all of them
UI handlers: Can be automatically linked to have an interaction with the UI without settings events in the Inspector
Interaction between mouse and camera: To implement the placing script, we needed to transform the mouse coordinates ...
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