Delta dos irmão 2.0

using UnityEngine;
using System.Collections;

public class PhysicsManager : MonoBehaviour
{
    float mass = 5f;
    float gravity = 9.8f;//(constante) m/s²
    public float drag = 0.95f; //Descontar do Thrust

    public Rigidbody rb; // só estamos usando a velocity por enquanto. Estamos fazendo o calc de gravity na mao
    public GameObject delta;//Trapezio
    public Respawner rpwn;

    [Header("Divisor relativo do Thurst")]
    public float boost = 0.098f; //divisor realtivo do Thurst (sim, isso é perCent) / 0.01f ~
    public Quaternion lift; //theta é o ponto w direção (ou um pivot veja o que fica mais eficaz)
    public float relativeThrust = 40;//e o impulso inicial
    public Vector3 debugRelative;

    public AudioSource strongWind;
    public AudioSource crashWing;

    public SteamVR_TrackedObject trackedObj;

    private void OnEnable()
    {
        rpwn = Object.FindObjectOfType<Respawner>();
    }



    public GameObject thrustAxis;

    public float speed;
    float Thrust()
    {
        thrustAxis.transform.position += thrustAxis.transform.forward * speed / 2;
        speed -= thrustAxis.transform.forward.y * 100f;//50.0f original
        if (speed < 0)
            speed = 500;

        relativeThrust = speed;
        return speed;
    }

    Vector3 RelativeDirection()
    {
        Vector3 fwd = lift * Vector3.forward;
        float relDirx = Mathf.Atan2(fwd.x, peso());
        float relDiry = Mathf.Atan2(fwd.y, peso());
        float relDirz = Mathf.Atan2(fwd.z, peso());
        Vector3 torque = new Vector3(relDirx, relDiry, relDirz);

        return torque;
    }
    //kilograma-forca ou N (Newton)
    float peso()
    {
        return mass * gravity;
    }

    float maxDistance = 100f;
    Vector3 tempVelocity;

    bool canMove;

    void Update()
    {
        CorrectFall();

        //Som temporario depois manda pra um mngr
        if (relativeThrust > 10000)
            strongWind.volume += 0.1f * Time.deltaTime;

        if (strongWind.volume > 0.8)
            strongWind.volume = 0.8f;

        if (Input.GetMouseButton(0))
            canMove = !canMove;
    }

    void FixedUpdate()
    {
        if (delta != null)
            lift = delta.transform.rotation;
        else
            return;

        rb.velocity = RelativeDirection() * Thrust();
        debugRelative = rb.velocity;
    }

    /// <summary>
    /// Condição para saída do terreno
    /// </summary>
    void CorrectFall()
    {
        if(Terrain.activeTerrain == true)
        {
            float terrainHeightWhereWeAre = Terrain.activeTerrain.SampleHeight(transform.position);

            if (terrainHeightWhereWeAre > transform.position.y)
            {
                transform.position = new Vector3(transform.position.x,
                                                 terrainHeightWhereWeAre,
                                                 transform.position.z);

                if (rpwn != null)
                    rpwn.Continue();
                crashWing.Play();
                //EventManager.RespawnPlayer();

            }
            else
            {
                //Faça fitas
            }

        }
    }

    void OnTriggerStay(Collider other)
    {
        if(other.gameObject.tag == "Boundary")
        {
            if(rpwn != null)
                rpwn.Continue();
        }

        //HandleEventType();
    }

    public GameObject leaves;
    void OnTriggerEnter(Collider other)
    {
        if (other.tag == "tree")
        {
            leaves.SetActive(true);
            StartCoroutine(SpawnLeaves());
        }
    }

    IEnumerator SpawnLeaves()
    {
        yield return new WaitForSeconds(3f);
        leaves.SetActive(false);
    }

}