https://github.com/mrspeaker/decent

https://github.com/mrspeaker/decent

Last synced: 14 days ago
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• Host: GitHub
• URL: https://github.com/mrspeaker/decent
• Owner: mrspeaker
• Created: 2024-02-22T23:27:12.000Z (9 months ago)
• Default Branch: main
• Last Pushed: 2024-03-06T06:00:17.000Z (8 months ago)
• Last Synced: 2024-10-10T22:48:39.740Z (about 1 month ago)
• Language: Rust
• Size: 27.5 MB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.org

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README

        
* Decent

A not very decent go at Descent.

** notes to self

https://forum.unity.com/threads/confused-about-rotations.528673/

private void Update()

    {

        var rot = ship.rotation;

        rot.z = -rot.z;

        navball.localRotation = Quaternion.Slerp(navball.localRotation, rot, _slerpSpeed);

    }

--------

Quaternion relRot = Program.VesselInfo.WorldToReference(Program.VesselInfo.VesselOrientation, VesselInformation.FrameOfReference.Navball);

Vector3 forward = relRot * Vector3.up;

double roll = forward.SignedAngle((Vector3.up - forward)*-1, relRot * Vector3.forward);

//the signed angle method:

        public static float SignedAngle(this Vector3 normal, Vector3 a, Vector3 

        {

            return Mathf.Atan2(

                Vector3.Dot(normal, Vector3.Cross(a, ),

                Vector3.Dot(a, ) * Mathf.Rad2Deg;

        }

I create a vector going from UP (0,1,0) to the up vector of the vessel (which is basically the forward vector, it's the point on the navball). The I simply calculate the angle between that and the actual forward vector of the vessel along the up axis of the vessel.