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Question by Icaro-Lima-TFG · May 25, 2019 at 11:23 PM · agentrocketland

Problem on Landing a 2D Rocket with ML-Agents

I'm trying to land a rocket, and the simplest thing I thought of doing was putting it to stand. I am not currently worrying about how strong it will hit the ground.

Here's how I am collecting observations:

 public override void CollectObservations()
 {
     AddVectorObs(Mathf.Sin(_rigidbody2D.rotation * Mathf.PI / 180));
     AddVectorObs(Mathf.Cos(_rigidbody2D.rotation * Mathf.PI / 180));
     AddVectorObs(_rigidbody2D.angularVelocity);
 }

Here's how I treat the actions and give rewards:

 public override void AgentAction(float[] vectorAction, string textAction)
 {
     _service.SetLeft(vectorAction[0] > 0);
     _service.SetRight(vectorAction[1] > 0);
 
     Cos = Mathf.Cos(_rigidbody2D.rotation * Mathf.PI / 180);
 
     AddReward(Cos);
 
     if (_collided || _rigidbody2D.position.y <= -12)
     {
         Done();
     }
 }

Already training a lot of time and does not seem to be stabilizing. Assuming that _service.SetLeft and _service.SetRight adds torque, and them are correct, what i'm doing wrong?

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