public Eye(Position3D position, Position3D lookAt, SpatialAngle up)
{
_position = position;
_lookAt = lookAt;
_up = up;
LookingAt = null;
LookingFrom = null;
}
private void DrawPlanet(Planet planet, Star star)
{
Gl.glPushMatrix();
rotateSphereOrbit(planet.Orbit);
goToCenterOfOrbit(planet.Orbit);
goToPosition(planet.CurrentPosition);
if (drawCoordinates)
{
SetMaterialForSun(planet.Color, 1);
Gl.glRasterPos3f((planet.Radius*1.5).ToFloat(), 0, 0);
text(planet.Name);
ReSetMaterialForSun();
}
if (Eye.LookingAt == planet)
{
SpatialAngle planetAngle = new SpatialAngle(
planet.CurrentPosition.Angle.Horizontal + planet.Orbit.Up.Horizontal,
planet.CurrentPosition.Angle.Vertical + planet.Orbit.Up.Vertical);
Eye.LookAt = new Position3D(planetAngle, planet.CurrentPosition.Distance);
if (tracking)
{
Eye.LookingAt = planet;
}
}
if (Eye.LookingFrom == planet)
{
SpatialAngle planetAngle = new SpatialAngle(
planet.CurrentPosition.Angle.Horizontal + planet.Orbit.Up.Horizontal + star.Orbit.Up.Horizontal,
planet.CurrentPosition.Angle.Vertical + planet.Orbit.Up.Vertical + star.Orbit.Up.Vertical);
Eye.Position = new Position3D(planetAngle, planet.CurrentPosition.Distance + planet.Radius * 5);
if (tracking)
{
Eye.LookingFrom = planet;
}
}
rotatePlanetAxis(planet);
foreach (Planet s in planet.Satelites)
{
DrawPlanet(s, star);
}
Gl.glRotated(planet.CurrentRotationAngle * 180 / Math.PI, 1, 0, 0);
SetMaterialForPlanet(planet, star.Shinines.ToFloat());
if (drawCoordinates)
{
drawCoordinateSystem(planet.Radius);
}
drawSphere(planet);
if (planet.Rings != null)
{
SetMaterialForPlanet(planet, (star.Shinines / 10f).ToFloat());
Gl.glRotated(90, 0, 1, 0);
foreach (Projektni_zadatak.Bodies.Ring r in planet.Rings)
{
drawDisc(r);
}
}
//Glut.glutWireCone(planet.Radius, planet.Radius, 30, 30);
ReSetMaterialForPlanet();
Gl.glPopMatrix();
}
public Eye()
{
Position = new Position3D();
LookAt = new Position3D();
Up = new SpatialAngle();
}
public Rotation(double hoursForRotation, double daysForPrecession, SpatialAngle axisTilt)
{
HoursForRotation = hoursForRotation;
DaysForPrecession = daysForPrecession;
AxisTilt = axisTilt;
}
public SpatialAngle(SpatialAngle sp)
{
Horizontal = sp.Horizontal;
Vertical = sp.Vertical;
}
public Position3D(SpatialAngle angle, double distanceFromCenter)
{
_angle = angle;
Distance = distanceFromCenter;
}
public Position3D(double x, double y, double z)
{
_angle = new SpatialAngle(0, 0);
Distance = Math.Sqrt(x * x + y * y + z * z);
if (Distance > 0)
{
Angle.Vertical = Math.Asin(x / Distance);
Angle.Horizontal = Math.Asin(-z / (Math.Acos(Angle.Vertical) * Distance));
}
else
{
Angle.Horizontal = Angle.Vertical = 0;
}
}
public Position3D()
{
Angle = new SpatialAngle();
Distance = 0;
}
public Orbit(double daysForRevolution, Ecliptic ecliptic, SpatialAngle up, double startAngle)
{
DaysForRevolution = daysForRevolution;
Ecliptic = ecliptic;
Up = up;
StartAngle = startAngle;
}
public Orbit()
{
DaysForRevolution = 1;
Ecliptic = new Ecliptic(0, 0);
Up = new SpatialAngle(0, 0);
StartAngle = 0;
}