public static double GetEscapeVelocity(Coordinate coord, IMassive body)
{
// V(esc) = 2 * G * M / r
double dist = VecCart(coord).Length;
return(dist == 0 ? 0 : body.Mass / dist);
}
public void ApplyGravity(IMassive massive)
{
Vector distVec = VecCart(massive.Vel.Origin, this.Vel.Origin);
double distanceSquared = Math.Pow(distVec.Length, 2);
double force = distanceSquared == 0 ? 0 : massive.Mass / distanceSquared;
Vector forceVec = VecCirc(distVec.ForwardAngle, force, this.Vel.Origin);
this.Accel = AddVectors(this.Accel, forceVec);
}
void OnTriggerStay2D(Collider2D collision)
{
IMassive massComponent = collision.GetComponent <IMassive>();
// The colliding object will begin falling if the point on the bottom of the object's collider is contained inside of the collider on this pit
if (massComponent != null && !massComponent.isFalling() && m_Collider2D.bounds.Contains(collision.bounds.center - new Vector3(0, collision.bounds.size.y / 2, collision.bounds.center.z)))
{
if (collision.CompareTag("Player"))
{
massComponent.Fall(fallingRate);
UI_Manager.WinGame();
}
}
}
void OnTriggerStay2D(Collider2D collision)
{
IMassive massComponent = collision.GetComponent <IMassive>();
// The colliding object will begin falling if the point on the bottom of the object's collider is contained inside of the collider on this pit
if (massComponent != null && !massComponent.isFalling() && m_Collider2D.bounds.Contains(collision.bounds.center - new Vector3(0, collision.bounds.size.y / 2, collision.bounds.center.z)))
{
if (collision.CompareTag("Block"))
{
massComponent.Fall(fallingRate);
Destroy(gameObject);
}
else
{
massComponent.Fall(fallingRate);
audioPlayer.PlaySFX(fallsfx);
}
}
}
public void SetNewWave()
{
XmlNode asteroidConfig = (from XmlNode node in this.Level.ChildNodes
where node.Name == "Asteroid"
select node).First();
int number = 0, altitude = 0, parent = 0;
Int32.TryParse(asteroidConfig.Attributes["number"].Value, out number);
Int32.TryParse(asteroidConfig.Attributes["altitude"].Value, out altitude);
Int32.TryParse(asteroidConfig.Attributes["parent"].Value, out parent);
Random rand = new Random();
for (int i = 0; i < number; i++)
{
double forwardAngle = i * 2 * Math.PI / number - Math.PI / 2;
IMassive parentBody = parent == 0 ? this.Barycenter : this.Planets[parent - 1];
Vector distVec = VecCirc(i * 2 * Math.PI / number, altitude, parentBody.Vel.Origin);
this.Asteroids.Add(new Asteroid(rand, VecCirc(forwardAngle, Physics.GetOrbitalVelocity(distVec.Head, parentBody), distVec.Head), 50, .5, "#808080", (rand.NextDouble() - .5) / 200));
}
}
public void SetShip()
{
XmlNode shipConfig = (from XmlNode node in this.Level.ChildNodes
where node.Name == "Ship"
select node).First();
if (this.Ships.Count == 0)
{
this.Ships.Add(new Ship(VecCirc()));
}
int altitude = 0, parent = 0;
Int32.TryParse(shipConfig.Attributes["altitude"].Value, out altitude);
Int32.TryParse(shipConfig.Attributes["parent"].Value, out parent);
IMassive parentBody = parent == 0 ? this.Barycenter : this.Planets[parent - 1];
Vector distVec = VecCirc(Math.PI, altitude, parentBody.Vel.Origin);
this.Ships[0].Vel = VecCirc(Math.PI / 2, Physics.GetOrbitalVelocity(distVec.Head, parentBody), distVec.Head);
this.Ships[0].DeltaRot = 0;
this.Ships[0].ForwardAngle = 0;
}
public static double GetOrbitalVelocity(Coordinate coord, IMassive body)
{
double dist = VecCart(coord, body.Vel.Origin).Length;
return(dist == 0 ? 0 : Math.Sqrt(body.Mass / dist) / 4);
}
private static void CheckAsteroidEscaped(IEnumerable <Asteroid> asteroids, DestroyAsteroids destroyAsteroids, IMassive barycenter)
{
List <Asteroid> doomedAsteroids = new List <Asteroid>();
foreach (Asteroid asteroid in asteroids)
{
if ((Math.Abs(asteroid.Vel.Origin.X) > 300 || Math.Abs(asteroid.Vel.Origin.Y) > 300) && Physics.GetEscapeVelocity(asteroid.Vel.Origin, barycenter) <= asteroid.Vel.Length)
{
doomedAsteroids.Add(asteroid);
}
}
destroyAsteroids(doomedAsteroids, false);
}
private static void CheckShotEscaped(IEnumerable <Shot> shots, DestroyShots destroyShots, IMassive barycenter)
{
List <Shot> doomedShots = new List <Shot>();
foreach (Shot shot in shots)
{
if ((Math.Abs(shot.Vel.Origin.X) > 300 || Math.Abs(shot.Vel.Origin.Y) > 300) && Physics.GetEscapeVelocity(shot.Vel.Origin, barycenter) <= shot.Vel.Length)
{
doomedShots.Add(shot);
}
}
destroyShots(doomedShots);
}
public static void HandleCollisions(IEnumerable <Shot> shots, IEnumerable <Asteroid> asteroids, IEnumerable <Planet> planets, IEnumerable <Ship> ships, IMassive barycenter, DestroyShots destroyShots, DestroyShips destroyShips, DestroyAsteroids destroyAsteroids, int maxShots, int maxAsteroids)
{
CheckShotEscaped(shots, destroyShots, barycenter);
CheckAsteroidEscaped(asteroids, destroyAsteroids, barycenter);
CheckShipEscaped(ships, destroyShips);
CheckShotAsteroidCollision(shots, asteroids, destroyShots, destroyAsteroids);
CheckShotShipCollision(shots, ships, destroyShots, destroyShips);
CheckShotPlanetCollision(shots, planets, destroyShots);
CheckAsteroidShipCollision(asteroids, ships, destroyAsteroids, destroyShips);
CheckAsteroidPlanetCollision(asteroids, planets, destroyAsteroids);
CheckShipPlanetCollision(ships, planets, destroyShips);
CheckMaxShots(shots, maxShots);
CheckMaxAsteroids(asteroids, maxAsteroids);
}
