After a little bit of time fighting with rotation math, I managed to get basic controller support for the left ship. That led to this little demo of what it looks like to swoop around the other player when they're standing still.
- WASD to move left ship
- arrow keys to move right ship
- Gamepad 1 left stick to rotate left ship
- Gamepad 2 left stick to rotate right ship
- Gamepad 1 right trigger to accelerate left ship