Support for 2D projects

[rattuscz]

I've tried UnitySteer for 2D project, but even with AllowedMovementAxes setting, the sprites rotate around all axes which breaks the sprite orientation.

From my poking around it seems that few changes could make UnitySteer support 2D movement:

• Allow setting custom "forward" vector
  • Public property for forward in vehicle ( default Vector3.forward for BC compatibility )
  • All uses of Transform.forward would instead use that property in calculation ( rotation * Forward )
  • Not sure Vector3.Slerp will not break rotation for 2D during AdjustOrientation in TickedVehicle.cs
• Check for Rigidbody2D also - only one place - ApplySteeringForce in TickedVehicle.cs

Is this doable or do you not plan to support 2d projects at all?

I will try to test it during the week and send pull request with the changes.

[ricardojmendez]

Hi,

I'm not doing any Unity 2D projects myself, so don't have a real test bed for that. I'd happily look at your pull requests, though.

If you're going to do something related to the forward vector, have a look at how the OrientationVelocity is assigned on AutonomousVehicle vs. Biped, since that'll help as a guideline of how to modify a vehicle's forward.