Have been working on controllable troops in my towers game:
I'm sure a lot of you will think "That looks easy!", but the hard part was the networking, as the client has to tell the server where it wants the troops and the server has to move them.
Also because the server must be as efficient as possible, the hardest part was making the troops not just walk into each other without using any sort of collision library such as jbullet (In the end, the algorithm is as follows - "If there is a troop within 10 units which is closer than my objective than I am, walk at 70% of the usual speed". The only pitfall of this is that it encourages troops to walk in a line).
Obviously I just gave the troops the tower model for now, which is simply a placeholder. Anyone know of any animated "soldier" models I can use?