//Is called when user moves to another tabs; Here the shapes are being updated
void Planets_SelectionChanged(object sender, EventArgs e)
{
switch (SelectedIndex)
{
case 0: //Mercury
Planet = new Sphere(Vector3.Zero, 1, PRECISEMENT, tMercury, GraphicsDevice);
Reset(); break;
case 1: //Venus
Planet = new Sphere(Vector3.Zero, 1.2f, PRECISEMENT, tVenus, GraphicsDevice);
Reset(); break;
case 2: //Earth
Earth_Init();
Reset(); break;
case 3: //Mars
Planet = new Sphere(Vector3.Zero, 1.3f, PRECISEMENT, tMars, GraphicsDevice);
Planet.Rotate(-Vector3.UnitZ, MARS_OBLIQUITY);
Moon = new Ellipsoid(new Vector3(0, 0, 2.5f), 0.1f, 1.2f, 0.83f, 1, PRECISEMENT/3+1, tPhobos, GraphicsDevice); //Phobos
Moon.RotateComposition(-Vector3.UnitZ, MARS_OBLIQUITY, Planet.Axis, -(float)randomAngle.NextDouble()*MathHelper.Pi);
Moon2 = new Ellipsoid(new Vector3(0, 0, 4), 0.07f, 1.22f, 1, 0.85f, PRECISEMENT/3+1, tDeimos, GraphicsDevice); //Deimos
Moon2.RotateComposition(-Vector3.UnitZ, MARS_OBLIQUITY, Planet.Axis, -(float)randomAngle.NextDouble() * MathHelper.Pi);
Reset(); break;
case 4: //Jupiter
Planet = new Ellipsoid(Vector3.Zero, 2f, 1.06f, 1, 1.06f, PRECISEMENT, tJupiter, GraphicsDevice);
Moon = new Sphere(new Vector3(0, 0, 3.5f), 0.1f, PRECISEMENT/3+1, tEuropa, GraphicsDevice); //Europa
Moon.Rotate(Planet.Axis, -(float)randomAngle.NextDouble()*MathHelper.Pi);
Moon2 = new Sphere(new Vector3(0, 0, 3f), 0.11f, PRECISEMENT/3+1, tIo, GraphicsDevice); //Io
Moon2.Rotate(Planet.Axis, -(float)randomAngle.NextDouble()*MathHelper.Pi);
Moon3 = new Sphere(new Vector3(0, 0, 4.3f), 0.17f, PRECISEMENT/3+2, tGanymede, GraphicsDevice); //Ganymede
Moon3.Rotate(Planet.Axis, -(float)randomAngle.NextDouble()*MathHelper.Pi);
Moon4 = new Sphere(new Vector3(0, 0, 5.5f), 0.14f, PRECISEMENT/3+2, tCallisto, GraphicsDevice); //Callisto
Moon4.Rotate(Planet.Axis, -(float)randomAngle.NextDouble()*MathHelper.Pi);
Reset(); break;
case 5: //Saturn
Planet = new Ellipsoid(Vector3.Zero, 1.8f, 1.1f, 1, 1.1f, PRECISEMENT, tSaturn, GraphicsDevice);
Planet.Rotate(-Vector3.UnitZ, SATURN_OBLIQUITY);
for (int i = 0; i < SaturnRing.Length; i++)
{
SaturnRing[i] = new FlatRingSector(Planet.Center, 2.7f, 0.9f, 1, MathHelper.TwoPi / SaturnRing.Length, tSaturnRing, GraphicsDevice);
SaturnRing[i].RotateComposition(-Vector3.UnitZ, SATURN_OBLIQUITY, Planet.Axis, MathHelper.TwoPi / SaturnRing.Length * i);
}
Moon = new Sphere(new Vector3(0, 0, 4f), 0.15f, PRECISEMENT/3+3, tTitan, GraphicsDevice); //Titan
Moon.RotateComposition(-Vector3.UnitZ, SATURN_OBLIQUITY, Planet.Axis, -(float)randomAngle.NextDouble() * MathHelper.Pi);
Moon2 = new Sphere(new Vector3(0, 0, 3f), 0.03f, PRECISEMENT/6, tRhea, GraphicsDevice); //Rhea
Moon2.RotateComposition(-Vector3.UnitZ, SATURN_OBLIQUITY, Planet.Axis, -(float)randomAngle.NextDouble() * MathHelper.Pi);
Moon3 = new Sphere(new Vector3(0, 0, 2.6f), 0.027f, PRECISEMENT/6, tDione, GraphicsDevice); //Dione
Moon3.RotateComposition(-Vector3.UnitZ, SATURN_OBLIQUITY, Planet.Axis, -(float)randomAngle.NextDouble() * MathHelper.Pi);
Moon4 = new Sphere(new Vector3(0, 0, 2.45f), 0.023f, PRECISEMENT/6, tTethys, GraphicsDevice); //Tethys
Moon4.RotateComposition(-Vector3.UnitZ, SATURN_OBLIQUITY, Planet.Axis, -(float)randomAngle.NextDouble() * MathHelper.Pi);
Moon5 = new Sphere(new Vector3(0, 0, 7f), 0.06f, PRECISEMENT/3+3, tIapetus, GraphicsDevice); //Iapetus
MoonAxis = (Vector3)My.Quaternion.Rotate(Planet.Axis, Vector3.UnitZ, SATURN_OBLIQUITY - IAPETUS_SATURN_OBLIQUITY);
Moon5.RotateComposition(-Vector3.UnitZ, IAPETUS_SATURN_OBLIQUITY, MoonAxis, -(float)randomAngle.NextDouble() * MathHelper.Pi);
Moon6 = new Sphere(new Vector3(0, 0, 2.3f), 0.015f, PRECISEMENT/6, tEnceladus, GraphicsDevice); //Enceladus
Moon6.RotateComposition(-Vector3.UnitZ, SATURN_OBLIQUITY, Planet.Axis, -(float)randomAngle.NextDouble() * MathHelper.Pi);
Moon7 = new Sphere(new Vector3(0, 0, 2.1f), 0.01f, PRECISEMENT/6, tMimas, GraphicsDevice); //Mimas
Moon7.RotateComposition(-Vector3.UnitZ, SATURN_OBLIQUITY, Planet.Axis, -(float)randomAngle.NextDouble() * MathHelper.Pi);
//To see rings at once:
Planet.Rotate(Vector3.UnitX, 0.1f);Moon.Rotate(Vector3.UnitX, 0.1f);Moon2.Rotate(Vector3.UnitX, 0.1f);
Moon3.Rotate(Vector3.UnitX, 0.1f);Moon4.Rotate(Vector3.UnitX, 0.1f);Moon5.Rotate(Vector3.UnitX, 0.1f);
Moon6.Rotate(Vector3.UnitX, 0.1f);Moon7.Rotate(Vector3.UnitX, 0.1f);
foreach (FlatRingSector f in SaturnRing) f.Rotate(Vector3.UnitX, 0.1f);
Reset(); break;
case 6: //Uranus
Planet = new Sphere(Vector3.Zero, 1.7f, PRECISEMENT, tUranus, GraphicsDevice);
Planet.Rotate(-Vector3.UnitZ, URANUS_OBLIQUITY);
Moon = new Sphere(new Vector3(0, 0, 3.5f), 0.11f, PRECISEMENT/3+1, tTitania, GraphicsDevice); //Titania
Moon.RotateComposition(-Vector3.UnitZ, URANUS_OBLIQUITY, Planet.Axis, -(float)randomAngle.NextDouble() * MathHelper.Pi);
Moon2 = new Sphere(new Vector3(0, 0, 3.8f), 0.11f, PRECISEMENT/3+1, tOberon, GraphicsDevice); //Oberon
Moon2.RotateComposition(-Vector3.UnitZ, URANUS_OBLIQUITY, Planet.Axis, -(float)randomAngle.NextDouble() * MathHelper.Pi);
Moon3 = new Sphere(new Vector3(0, 0, 2.6f), 0.09f, PRECISEMENT/3+1, tAriel, GraphicsDevice); //Ariel
Moon3.RotateComposition(-Vector3.UnitZ, URANUS_OBLIQUITY, Planet.Axis, -(float)randomAngle.NextDouble() * MathHelper.Pi);
Moon4 = new Sphere(new Vector3(0, 0, 3f), 0.09f, PRECISEMENT/3+1, tUmbriel, GraphicsDevice); //Umbriel
Moon4.RotateComposition(-Vector3.UnitZ, URANUS_OBLIQUITY, Planet.Axis, -(float)randomAngle.NextDouble() * MathHelper.Pi);
Moon5 = new Sphere(new Vector3(0, 0, 2.4f), 0.05f, PRECISEMENT/3+1, tMiranda, GraphicsDevice); //Miranda
Moon5.RotateComposition(-Vector3.UnitZ, URANUS_OBLIQUITY, Planet.Axis, -(float)randomAngle.NextDouble() * MathHelper.Pi);
Reset(); break;
case 7: //Neptune
Planet = new Sphere(Vector3.Zero, 1.6f, PRECISEMENT, tNeptune, GraphicsDevice);
Planet.Rotate(-Vector3.UnitZ, NEPTUNE_OBLIQUITY);
Moon = new Sphere(new Vector3(0, 0, 2.6f), 0.14f, PRECISEMENT/2-1, tTriton, GraphicsDevice); //Triton
MoonAxis = (Vector3)My.Quaternion.Rotate(Planet.Axis, Vector3.UnitZ, SATURN_OBLIQUITY - TRITON_NEPTUNE_OBLIQUITY);
Moon.RotateComposition(-Vector3.UnitZ, TRITON_NEPTUNE_OBLIQUITY, MoonAxis, -(float)randomAngle.NextDouble() * MathHelper.Pi);
Moon2 = new Ellipsoid(new Vector3(0, 0, 5f), 0.04f, 1, 1.1f, 1, PRECISEMENT/4, tNereid, GraphicsDevice); //Nereid
Moon2.RotateComposition(-Vector3.UnitZ, NEPTUNE_OBLIQUITY, Planet.Axis, -(float)randomAngle.NextDouble() * MathHelper.Pi);
Moon3 = new Sphere(new Vector3(0, 0, 2f), 0.05f, PRECISEMENT/4, tProteus, GraphicsDevice); //Proteus
Moon3.RotateComposition(-Vector3.UnitZ, NEPTUNE_OBLIQUITY, Planet.Axis, -(float)randomAngle.NextDouble() * MathHelper.Pi);
Reset(); break;
}
}
//Is called from two places in code
void Earth_Init()
{
Planet = new Sphere(Vector3.Zero, 1.5f, PRECISEMENT, tEarth, GraphicsDevice);
Planet.Rotate(-Vector3.UnitZ, EARTH_OBLIQUITY);
Moon = new Sphere(new Vector3(3.5f, 0, 0), 0.25f, PRECISEMENT / 2+2, tMoon, GraphicsDevice);
MoonAxis = (Vector3)My.Quaternion.Rotate(Planet.Axis, Vector3.UnitZ, EARTH_OBLIQUITY - MOON_EARTH_OBLIQUITY);
Moon.RotateComposition(-Vector3.UnitZ, MOON_EARTH_OBLIQUITY, MoonAxis, -(float)randomAngle.NextDouble() * MathHelper.Pi);
}