Hey Lexx, that seems like a likely candidate function. You should proabably be able to get the result you want by doing the same checks after the line traces in this function as I suggested for for the regular FindTilesInRange. Could you paste a screenshot of how you’ve modified it so far? Then I can see what you might have done wrong.
This depends a lot on what exactly you want to achieve. There are various flight mechanics implemented differently in the XCOM and X-Com games so I have to make sure we are talking about the same thing. Could you explain in more detail what you want so I don’t answer the wrong question? Do you want the unit to be able to occupy distinct increments up in the air over a tile? Can there be another unit standing beneath it when it is flying? Can there be multiple flying units all occupying separate height increments above and below one another? Can the unit move around to new tiles while keeping the same height, or does it have to land first? All of these things are factors that will make the implementation more complex so consider what you really need.