public Planet(Planets key, Model model)
{
PlanetData data = PlanetaryConstants.GetPlanet(key);
period = data.Period;
rotationalVelocity = data.AngularPeriod;
diameter = data.Diameter;
distanceFromSol = data.OrbitalRadius;
tiltDegrees = data.AxialTilt;
ident = key;
}
public void DrawMoon(Planets planet, Planet parent, Matrix world, Matrix projection, Matrix view, string technique, float timer)
{
PlanetData data = PlanetaryConstants.GetPlanet(planet);
Matrix translate;
Matrix scale;
Matrix localRotation;
Matrix globalRotation;
// create local values
translate = Matrix.CreateTranslation(new Vector3(parent.Scale * 2, 0, 0));
scale = Matrix.CreateScale(data.Diameter);
globalRotation = Matrix.CreateRotationY(timer / data.Period);
localRotation = Matrix.CreateRotationZ(MathHelper.ToRadians(parent.AxialTilt));
world *= scale;
world *= localRotation;
world *= translate;
world *= globalRotation;
// match parent values
translate = Matrix.CreateTranslation(new Vector3(parent.DistanceFromSol, 0, 0));
globalRotation = Matrix.CreateRotationY(timer / parent.Period);
// apply values
world *= translate;
world *= globalRotation;
Matrix[] transforms = new Matrix[planetModel.Bones.Count];
planetModel.CopyAbsoluteBoneTransformsTo(transforms);
foreach (ModelMesh mesh in planetModel.Meshes)
{
foreach (Effect effect in mesh.Effects)
{
effect.CurrentTechnique = Game1.perlinNoiseEffect.Techniques[technique];
effect.Parameters["World"].SetValue(world);
effect.Parameters["View"].SetValue(view);
effect.Parameters["Projection"].SetValue(projection);
}
mesh.Draw();
}
}
