/// <summary>
/// creates an asteroid that will collide with the given entity on the given date.
/// </summary>
/// <param name="starSys"></param>
/// <param name="target"></param>
/// <param name="collisionDate"></param>
/// <returns></returns>
public static Entity CreateAsteroid(StarSystem starSys, Entity target, DateTime collisionDate, double asteroidMass = -1.0)
{
//todo rand these a bit.
double radius = Distance.KmToAU(0.5);
double mass;
if (asteroidMass == -1.0)
{
mass = 1.5e+12; //about 1.5 billion tonne
}
else
{
mass = asteroidMass;
}
Vector3 velocity = new Vector3(8, 7, 0);
var position = new PositionDB(0, 0, 0, Guid.Empty);
var massVolume = MassVolumeDB.NewFromMassAndRadius(mass, radius);
var planetInfo = new SystemBodyInfoDB();
var balisticTraj = new NewtonBalisticDB(target.Guid, collisionDate);
var name = new NameDB("Ellie");
var AsteroidDmg = new AsteroidDamageDB();
var sensorPfil = new SensorProfileDB();
planetInfo.SupportsPopulations = false;
planetInfo.BodyType = BodyType.Asteroid;
Vector3 targetPos = OrbitProcessor.GetAbsolutePosition_AU(target.GetDataBlob <OrbitDB>(), collisionDate);
TimeSpan timeToCollision = collisionDate - StaticRefLib.CurrentDateTime;
Vector3 offset = velocity * timeToCollision.TotalSeconds;
targetPos -= Distance.KmToAU(offset);
position.AbsolutePosition_AU = targetPos;
position.SystemGuid = starSys.Guid;
balisticTraj.CurrentSpeed = velocity;
var planetDBs = new List <BaseDataBlob>
{
position,
massVolume,
planetInfo,
name,
balisticTraj,
AsteroidDmg,
sensorPfil
};
Entity newELE = new Entity(starSys, planetDBs);
return(newELE);
}
/// <summary>
/// This asteroid was destroyed, see if it is big enough for child asteroids to spawn, and if so spawn them.
/// </summary>
/// <param name="Asteroid"></param>
internal static void SpawnSubAsteroids(Entity Asteroid)
{
Game game = Asteroid.Manager.Game;
MassVolumeDB ADB = Asteroid.GetDataBlob <MassVolumeDB>();
//const double massDefault = 1.5e+12; //150 B tonnes?
const double massThreshold = 1.5e+9; //150 M tonnes?
if (ADB.Mass > massThreshold)
{
//spawn new asteroids. call the asteroid factory?
double newMass = ADB.Mass * 0.4; //add a random factor into this? do we care? will mass be printed to the player?
NewtonBalisticDB nDB = Asteroid.GetDataBlob <NewtonBalisticDB>();
PositionDB pDB = Asteroid.GetDataBlob <PositionDB>();
StarSystem mySystem;
if (!game.Systems.TryGetValue(pDB.SystemGuid, out mySystem))
{
throw new GuidNotFoundException(pDB.SystemGuid);
}
Entity myTarget;
if (!mySystem.FindEntityByGuid(nDB.TargetGuid, out myTarget))
{
throw new GuidNotFoundException(nDB.TargetGuid);
}
//public static Entity CreateAsteroid(StarSystem starSys, Entity target, DateTime collisionDate, double asteroidMass = -1.0)
//I need the target entity, the collisionDate, and the starSystem. I may have starsystem from guid.
//Ok so this should create the asteroid without having to add the new asteroids to a list. as that is done in the factory.
Entity newAsteroid1 = AsteroidFactory.CreateAsteroid(mySystem, myTarget, nDB.CollisionDate, newMass);
Entity newAsteroid2 = AsteroidFactory.CreateAsteroid(mySystem, myTarget, nDB.CollisionDate, newMass);
mySystem.RemoveEntity(Asteroid);
//Randomize the number of created asteroids?
}
else
{
//delete the existing asteroid.
PositionDB pDB = Asteroid.GetDataBlob <PositionDB>();
StarSystem mySystem;
if (!game.Systems.TryGetValue(pDB.SystemGuid, out mySystem))
{
throw new GuidNotFoundException(pDB.SystemGuid);
}
mySystem.RemoveEntity(Asteroid);
}
}
/// <summary>
/// process balistic movement for a single system
/// currently is not affected by gravity.
/// </summary>
/// <param name="manager">the system to process</param>
internal static void Process(EntityManager manager)
{
TimeSpan orbitCycle = manager.Game.Settings.OrbitCycleTime;
DateTime toDate = manager.ManagerSubpulses.SystemLocalDateTime + orbitCycle;
manager.ManagerSubpulses.AddSystemInterupt(toDate + orbitCycle, PulseActionEnum.BalisticMoveProcessor);
List <Entity> RemoveList = new List <Entity>();
List <StarSystem> RemoveSystem = new List <StarSystem>();
foreach (Entity objectEntity in manager.GetAllEntitiesWithDataBlob <NewtonBalisticDB>())
{
NewtonBalisticDB balisticDB = objectEntity.GetDataBlob <NewtonBalisticDB>();
PositionDB position = objectEntity.GetDataBlob <PositionDB>();
position.RelativePosition += Distance.KmToAU(balisticDB.CurrentSpeed * orbitCycle.TotalSeconds);
Entity myTarget = manager.GetLocalEntityByGuid(balisticDB.TargetGuid);
PositionDB targetPos = myTarget.GetDataBlob <PositionDB>();
if (targetPos.AbsolutePosition == position.AbsolutePosition)
{
//do something in damage processor for asteroid hitting a planet?
DamageProcessor.OnTakingDamage(myTarget, 1000000); ///one. million. damage points.
StarSystem mySystem;
if (!manager.Game.Systems.TryGetValue(position.SystemGuid, out mySystem))
{
throw new GuidNotFoundException(position.SystemGuid);
}
RemoveList.Add(objectEntity);
RemoveSystem.Add(mySystem);
mySystem.SystemManager.RemoveEntity(objectEntity); //get rid of the asteroid
}
}
/// <summary>
/// Clean up the asteroids that have hit something and been put in the remove list.
/// </summary>
for (int removeIterator = 0; removeIterator < RemoveList.Count; removeIterator++)
{
RemoveSystem[removeIterator].SystemManager.RemoveEntity(RemoveList[removeIterator]);
}
/// <summary>
/// This may not be necessary but clear these two lists.
/// </summary>
RemoveList.Clear();
RemoveSystem.Clear();
}
/// <summary>
/// process balistic movement for a single system
/// currently is not affected by gravity.
/// </summary>
/// <param name="manager">the system to process</param>
internal static void Process(EntityManager manager, int deltaSeconds)
{
List <Entity> RemoveList = new List <Entity>();
List <StarSystem> RemoveSystem = new List <StarSystem>();
foreach (Entity objectEntity in manager.GetAllEntitiesWithDataBlob <NewtonBalisticDB>())
{
NewtonBalisticDB balisticDB = objectEntity.GetDataBlob <NewtonBalisticDB>();
PositionDB position = objectEntity.GetDataBlob <PositionDB>();
position.RelativePosition += Distance.KmToAU(balisticDB.CurrentSpeed * deltaSeconds);
/*TODO: rethink how this is done, unless this is the only place we're going to do collision, then it shouldnt be done here.
* ALso, this currently breaks down in a network situation because we're not sending the target entity (the client probilby shouldnt know that)
* Entity myTarget = manager.GetLocalEntityByGuid(balisticDB.TargetGuid);
* PositionDB targetPos = myTarget.GetDataBlob<PositionDB>();
*
* if(targetPos.AbsolutePosition == position.AbsolutePosition)
* {
* //do something in damage processor for asteroid hitting a planet?
* DamageProcessor.OnTakingDamage(myTarget, 1000000); ///one. million. damage points.
*
* StarSystem mySystem;
* if (!manager.Game.Systems.TryGetValue(position.SystemGuid, out mySystem))
* throw new GuidNotFoundException(position.SystemGuid);
*
* RemoveList.Add(objectEntity);
* RemoveSystem.Add(mySystem);
*
* mySystem.SystemManager.RemoveEntity(objectEntity); //get rid of the asteroid
* }*/
}
/// <summary>
/// Clean up the asteroids that have hit something and been put in the remove list.
/// </summary>
for (int removeIterator = 0; removeIterator < RemoveList.Count; removeIterator++)
{
RemoveSystem[removeIterator].RemoveEntity(RemoveList[removeIterator]);
}
/// <summary>
/// This may not be necessary but clear these two lists.
/// </summary>
RemoveList.Clear();
RemoveSystem.Clear();
}
public NewtonBalisticDB(NewtonBalisticDB db)
{
CurrentSpeed = db.CurrentSpeed;
TargetGuid = db.TargetGuid;
CollisionDate = db.CollisionDate;
}
public static Entity CreateAsteroid2(StarSystem starSys, Entity target, DateTime collisionDate, double asteroidMass = -1.0)
{
//todo rand these a bit.
double radius = Distance.KmToAU(0.5);
double mass;
if (asteroidMass == -1.0)
{
mass = 1.5e+12; //about 1.5 billion tonne
}
else
{
mass = asteroidMass;
}
Vector3 velocity = new Vector3(8, 7, 0);
var position = new PositionDB(0, 0, 0, Guid.Empty);
var massVolume = MassVolumeDB.NewFromMassAndRadius(mass, radius);
var planetInfo = new SystemBodyInfoDB();
var balisticTraj = new NewtonBalisticDB(target.Guid, collisionDate);
var name = new NameDB("Ellie");
var AsteroidDmg = new AsteroidDamageDB();
var sensorPfil = new SensorProfileDB();
planetInfo.SupportsPopulations = false;
planetInfo.BodyType = BodyType.Asteroid;
Vector3 targetPos = OrbitProcessor.GetAbsolutePosition_AU(target.GetDataBlob <OrbitDB>(), collisionDate);
TimeSpan timeToCollision = collisionDate - StaticRefLib.CurrentDateTime;
Vector3 offset = velocity * timeToCollision.TotalSeconds;
targetPos -= Distance.KmToAU(offset);
position.AbsolutePosition_AU = targetPos;
position.SystemGuid = starSys.Guid;
balisticTraj.CurrentSpeed = velocity;
var parent = target.GetDataBlob <OrbitDB>().Parent;
var parentMass = parent.GetDataBlob <MassVolumeDB>().Mass;
var myMass = massVolume.Mass;
var mySemiMajorAxis = 5.055;
var myEccentricity = 0.8;
var myInclination = 0;
var myLoAN = 0;
var myAoP = -10;
//var EccentricAnomaly = Math.Atan2()
//var meanAnomaly =;
double myLoP = 0;
double myMeanLongd = 355.5;
//OrbitDB orbit = OrbitDB.FromAsteroidFormat(parent, parentMass, myMass, mySemiMajorAxis, myEccentricity, myInclination, myLoAN, myAoP, meanAnomaly, starSys.Game.CurrentDateTime);
OrbitDB orbit = OrbitDB.FromMajorPlanetFormat(parent, parentMass, myMass, mySemiMajorAxis, myEccentricity, myInclination, myLoAN, myLoP, myMeanLongd, StaticRefLib.CurrentDateTime);
var planetDBs = new List <BaseDataBlob>
{
position,
massVolume,
planetInfo,
name,
orbit,
AsteroidDmg,
sensorPfil
};
Entity newELE = new Entity(starSys, planetDBs);
return(newELE);
}