private void RotatePlanetoid(
TexturedMeshObject mesh, Vector3 center, float angle)
{
Matrix world = mesh.World;
world.M41 -= center.X;
world.M42 -= center.Y;
world.M43 -= center.Z;
world = world * Matrix.CreateRotationZ(
MathHelper.ToRadians(angle));
world.M41 += center.X;
world.M42 += center.Y;
world.M43 += center.Z;
mesh.World = world;
}
private void AddPlanetoidMesh(ref Matrix projection, Vector3 initial, string meshName)
{
Matrix world = Matrix.Identity;
world = Matrix.CreateRotationX(MathHelper.ToRadians(90)) * world;
world.M41 = initial.X;
world.M42 = initial.Y;
world.M43 = initial.Z;
TexturedMeshObject mesh =
new TexturedMeshObject(graphicsDevice, contentManager, meshName);
mesh.World = world;
mesh.Projection = projection;
meshes.Add(mesh);
}