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OrbitLine stuff

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This commit is contained in:
Nick 2022-04-21 18:20:57 -04:00
parent 15071fdb62
commit 6a5d048ba9
4 changed files with 176 additions and 24 deletions
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27
NewHorizons/Builder/Orbital/OrbitlineBuilder.cs
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@ -10,7 +10,7 @@ namespace NewHorizons.Builder.Orbital
{
static class OrbitlineBuilder
{
public static void Make(GameObject body, AstroObject astroobject, bool isMoon, IPlanetConfig config)
public static void Make(GameObject body, NHAstroObject astroObject, bool isMoon, IPlanetConfig config)
{
GameObject orbitGO = new GameObject("Orbit");
orbitGO.transform.parent = body.transform;
@ -25,19 +25,32 @@ namespace NewHorizons.Builder.Orbital
var ecc = config.Orbit.Eccentricity;
var parentGravity = astroobject.GetPrimaryBody()?.GetGravityVolume();
var parentGravity = astroObject.GetPrimaryBody()?.GetGravityVolume();
OrbitLine orbitLine;
if(config.Orbit.Eccentricity == 0)
if(ecc == 0)
{
orbitLine = orbitGO.AddComponent<OrbitLine>();
orbitLine = new OrbitLine();
}
else
{
orbitLine = orbitGO.AddComponent<TrackingOrbitLine>();
orbitLine = new TrackingOrbitLine();
}
/*
NHOrbitLine orbitLine = orbitGO.AddComponent<NHOrbitLine>();
var a = astroObject.SemiMajorAxis;
var e = astroObject.Eccentricity;
var b = a * Mathf.Sqrt(1f - (e * e));
var l = astroObject.LongitudeOfAscendingNode;
var p = astroObject.ArgumentOfPeriapsis;
var i = astroObject.Inclination;
orbitLine.SemiMajorAxis = a * OrbitalParameters.Rotate(Vector3.forward, l, i, p);
orbitLine.SemiMinorAxis = b * OrbitalParameters.Rotate(Vector3.left, l, i, p);
*/
var color = Color.white;
if (config.Orbit.Tint != null) color = config.Orbit.Tint.ToColor32();
else if (config.Star != null) color = config.Star.Tint.ToColor32();
@ -58,7 +71,7 @@ namespace NewHorizons.Builder.Orbital
orbitLine._color = color;
orbitLine._astroObject = astroobject;
orbitLine._astroObject = astroObject;
orbitLine._fade = fade;
orbitLine._lineWidth = 2f;

103
NewHorizons/Components/Orbital/NHOrbitLine.cs Normal file
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@ -0,0 +1,103 @@
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using UnityEngine;
namespace NewHorizons.Components.Orbital
{
public class NHOrbitLine : OrbitLine
{
public Vector3 SemiMajorAxis { get; set; }
public Vector3 SemiMinorAxis { get; set; }
private Vector3 _upAxis;
private float _fociDistance;
private Vector3[] _verts;
public override void InitializeLineRenderer()
{
base.GetComponent<LineRenderer>().positionCount = this._numVerts;
}
public override void OnValidate()
{
if (_numVerts < 0 || _numVerts > 4096)
{
_numVerts = Mathf.Clamp(_numVerts, 0, 4096);
}
if (base.GetComponent<LineRenderer>().positionCount != this._numVerts)
{
InitializeLineRenderer();
}
}
public override void Start()
{
base.Start();
var a = SemiMajorAxis.magnitude;
var b = SemiMinorAxis.magnitude;
_upAxis = Vector3.Cross(SemiMajorAxis.normalized, SemiMinorAxis.normalized);
_fociDistance = Mathf.Sqrt(a * a - b * b);
if (float.IsNaN(_fociDistance)) _fociDistance = 0f;
_verts = new Vector3[this._numVerts];
transform.localRotation = Quaternion.Euler(270, 90, 0);
base.enabled = false;
}
public override void Update()
{
AstroObject primary = _astroObject?.GetPrimaryBody();
// If it has nothing to orbit then why is this here
if (primary == null)
{
base.enabled = false;
return;
}
Vector3 origin = primary.transform.position + SemiMajorAxis.normalized * _fociDistance;
float num = CalcProjectedAngleToCenter(origin, SemiMajorAxis, SemiMinorAxis, _astroObject.transform.position);
for (int i = 0; i < _numVerts; i++)
{
float f = (float)i / (float)(_numVerts - 1) * 3.1415927f * 2f - (num + 3.1415927f);
_verts[i] = SemiMajorAxis * Mathf.Cos(f) + SemiMinorAxis * Mathf.Sin(f);
}
_lineRenderer.SetPositions(_verts);
transform.position = origin;
transform.rotation = Quaternion.LookRotation(SemiMinorAxis, _upAxis);
float num2 = DistanceToEllipticalOrbitLine(origin, SemiMajorAxis, SemiMinorAxis, _upAxis, Locator.GetActiveCamera().transform.position);
float widthMultiplier = Mathf.Min(num2 * (_lineWidth / 1000f), _maxLineWidth);
float num3 = _fade ? (1f - Mathf.Clamp01((num2 - _fadeStartDist) / (_fadeEndDist - _fadeStartDist))) : 1f;
_lineRenderer.widthMultiplier = widthMultiplier;
_lineRenderer.startColor = new Color(_color.r, _color.g, _color.b, num3 * num3);
}
private float CalcProjectedAngleToCenter(Vector3 foci, Vector3 semiMajorAxis, Vector3 semiMinorAxis, Vector3 point)
{
Vector3 lhs = point - foci;
Vector3 vector = new Vector3(Vector3.Dot(lhs, semiMajorAxis.normalized), 0f, Vector3.Dot(lhs, semiMinorAxis.normalized));
vector.x *= semiMinorAxis.magnitude / semiMajorAxis.magnitude;
return Mathf.Atan2(vector.z, vector.x);
}
private float DistanceToEllipticalOrbitLine(Vector3 foci, Vector3 semiMajorAxis, Vector3 semiMinorAxis, Vector3 upAxis, Vector3 point)
{
float f = CalcProjectedAngleToCenter(foci, semiMajorAxis, semiMinorAxis, point);
Vector3 b = foci + SemiMajorAxis * Mathf.Cos(f) + SemiMinorAxis * Mathf.Sin(f);
return Vector3.Distance(point, b);
}
}
}

17
NewHorizons/Components/Orbital/OrbitalParameters.cs
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@ -90,14 +90,10 @@ namespace NewHorizons.Components.Orbital
var x = semiMajorAxis * Mathf.Cos(eccentricAnomaly) - focusDistance;
var y = semiMinorAxis * Mathf.Sin(eccentricAnomaly);
var R1 = Quaternion.AngleAxis(longitudeOfAscendingNode, Vector3.up);
var R2 = Quaternion.AngleAxis(inclination, Vector3.forward);
var R3 = Quaternion.AngleAxis(argumentOfPeriapsis, Vector3.up);
var n_p = new Vector2(x, y).normalized;
var dir = R1 * R2 * R3 * new Vector3(n_p.x, 0f, n_p.y).normalized;
var up = R1 * R2 * R3 * Vector3.up;
var dir = Rotate(new Vector3(n_p.x, 0f, n_p.y).normalized, longitudeOfAscendingNode, inclination, argumentOfPeriapsis);
var up = Rotate(Vector3.up, longitudeOfAscendingNode, inclination, argumentOfPeriapsis);
var pos = r * dir;
var vel = v * Vector3.Cross(dir, up).normalized;
@ -107,5 +103,14 @@ namespace NewHorizons.Components.Orbital
return orbitalParameters;
}
public static Vector3 Rotate(Vector3 vector, float longitudeOfAscendingNode, float inclination, float argumentOfPeriapsis)
{
var R1 = Quaternion.AngleAxis(longitudeOfAscendingNode, Vector3.up);
var R2 = Quaternion.AngleAxis(inclination, Vector3.forward);
var R3 = Quaternion.AngleAxis(argumentOfPeriapsis, Vector3.up);
return R1 * R2 * R3 * vector;
}
}
}

51
NewHorizons/Handlers/PlanetCreationHandler.cs
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@ -214,29 +214,42 @@ namespace NewHorizons.Handlers
var go = new GameObject(body.Config.Name.Replace(" ", "").Replace("'", "") + "_Body");
go.SetActive(false);
if (body.Config.Base.GroundSize != 0) GeometryBuilder.Make(go, body.Config.Base.GroundSize);
if (body.Config.Base.GroundSize != 0)
{
GeometryBuilder.Make(go, body.Config.Base.GroundSize);
}
var atmoSize = body.Config.Atmosphere != null ? body.Config.Atmosphere.Size : 0f;
float sphereOfInfluence = Mathf.Max(Mathf.Max(atmoSize, 50), body.Config.Base.SurfaceSize * 2f);
var overrideSOI = body.Config.Base.SphereOfInfluence;
if (overrideSOI != 0) sphereOfInfluence = overrideSOI;
if (overrideSOI != 0)
{
sphereOfInfluence = overrideSOI;
}
var outputTuple = BaseBuilder.Make(go, primaryBody, body.Config);
var ao = (AstroObject)outputTuple.Item1;
var owRigidBody = (OWRigidbody)outputTuple.Item2;
var ao = outputTuple.Item1;
var owRigidBody = outputTuple.Item2;
GravityVolume gv = null;
if (body.Config.Base.SurfaceGravity != 0)
gv = GravityBuilder.Make(go, ao, body.Config);
{
GravityBuilder.Make(go, ao, body.Config);
}
if (body.Config.Base.HasReferenceFrame)
{
RFVolumeBuilder.Make(go, owRigidBody, sphereOfInfluence);
}
if (body.Config.Base.HasMapMarker)
{
MarkerBuilder.Make(go, body.Config.Name, body.Config);
}
if (body.Config.Base.HasAmbientLight)
{
AmbientLightBuilder.Make(go, sphereOfInfluence);
}
var sector = MakeSector.Make(go, owRigidBody, sphereOfInfluence * 2f);
ao._rootSector = sector;
@ -244,15 +257,24 @@ namespace NewHorizons.Handlers
VolumesBuilder.Make(go, body.Config.Base.SurfaceSize, sphereOfInfluence, body.Config);
if (body.Config.HeightMap != null)
{
HeightMapBuilder.Make(go, body.Config.HeightMap, body.Mod);
}
if (body.Config.ProcGen != null)
{
ProcGenBuilder.Make(go, body.Config.ProcGen);
}
if (body.Config.Star != null) StarLightController.AddStar(StarBuilder.Make(go, sector, body.Config.Star));
if (body.Config.Star != null)
{
StarLightController.AddStar(StarBuilder.Make(go, sector, body.Config.Star));
}
if (body.Config.FocalPoint != null)
{
FocalPointBuilder.Make(go, ao, body.Config, body.Mod);
}
// Do stuff that's shared between generating new planets and updating old ones
go = SharedGenerateBody(body, go, sector, owRigidBody);
@ -272,11 +294,20 @@ namespace NewHorizons.Handlers
Main.SystemDict[body.Config.StarSystem].SpawnPoint = SpawnPointBuilder.Make(go, body.Config.Spawn, owRigidBody);
}
if (body.Config.Orbit.ShowOrbitLine && !body.Config.Orbit.IsStatic) OrbitlineBuilder.Make(body.Object, ao, body.Config.Orbit.IsMoon, body.Config);
if (body.Config.Orbit.ShowOrbitLine && !body.Config.Orbit.IsStatic)
{
OrbitlineBuilder.Make(body.Object, ao as NHAstroObject, body.Config.Orbit.IsMoon, body.Config);
}
if (!body.Config.Orbit.IsStatic) DetectorBuilder.Make(go, owRigidBody, primaryBody, ao, body.Config);
if (!body.Config.Orbit.IsStatic)
{
DetectorBuilder.Make(go, owRigidBody, primaryBody, ao, body.Config);
}
if (ao.GetAstroObjectName() == AstroObject.Name.CustomString) AstroObjectLocator.RegisterCustomAstroObject(ao);
if (ao.GetAstroObjectName() == AstroObject.Name.CustomString)
{
AstroObjectLocator.RegisterCustomAstroObject(ao);
}
return go;
}