Just found out Unity's NavMeshes, etc. aren't available in the free edition, so I'm going to have to take to pathfinding the old fashion way--coding it myself. This is going to be an entirely new endeavor for me.
Any advice? Like things to avoid doing, what topics are basics/which are advanced pathfinding topics, what I should definitely have an understanding of before jumping into it (theories, programming aspects, etc.)?
Also, just out of curiosity, is this the hardest part of AI programming? If not, what do you think is?