public double DistanceFrom(Collidable from)
{
Vector2 myCenter = this.Center(),
theirCenter = from.Center();
return Math.Sqrt(Math.Pow(myCenter.X - theirCenter.X, 2) + Math.Pow(myCenter.Y - theirCenter.Y, 2));
}
public void Remove(Collidable obj)
{
QuadTreeNode node = obj.GetMapArea();
if (node != null)
{
obj.GetMapArea().Contents.Remove(obj);
}
}
public void Insert(Collidable obj)
{
lock (_insertLock)
{
_allObjects.Add(obj);
_space.Insert(obj);
}
}
public override void HandleCollisionWith(Collidable c, Map space)
{
if (c is Ship)
{
c.LifeController.Heal(_healAmount);
Dispose(); // Destroy bullet when collision
base.HandleCollisionWith(c, space);
}
}
/// <summary>
/// When a bullet hits another object it must be destroyed. So we dispose of it.
/// </summary>
/// <param name="c">The object that I colided with.</param>
public override void HandleCollisionWith(Collidable c, Map space)
{
base.HandleCollisionWith(c, space);
DamageDealt = DamageController.Damage;
c.LifeController.Hurt(DamageDealt, this);
if(c is Ship)
{
(c as Ship).StatRecorder.BulletCollision(this);
}
Dispose(); // Destroy bullet when collision
}
public void Hurt(double life, Collidable hurtBy = null)
{
Health -= life;
// Dead
if (Health <= 0)
{
Health = 0;
Alive = false;
if (OnDeath != null)
{
OnDeath(Host, new DeathEventArgs(hurtBy));
}
}
}
private void SetCollidableContractMembers(object[] result, Collidable obj)
{
result[CollidableCompressionContract.Collided] = Convert.ToInt32(obj.Collided);
result[CollidableCompressionContract.CollidedAtX] = Math.Round(obj.CollidedAt.X, 2);
result[CollidableCompressionContract.CollidedAtY] = Math.Round(obj.CollidedAt.Y, 2);
result[CollidableCompressionContract.ForcesX] = Math.Round(obj.MovementController.Forces.X, 2);
result[CollidableCompressionContract.ForcesY] = Math.Round(obj.MovementController.Forces.Y, 2);
result[CollidableCompressionContract.Mass] = obj.MovementController.Mass;
result[CollidableCompressionContract.PositionX] = Math.Round(obj.MovementController.Position.X, 2);
result[CollidableCompressionContract.PositionY] = Math.Round(obj.MovementController.Position.Y, 2);
result[CollidableCompressionContract.Rotation] = Math.Round(obj.MovementController.Rotation, 2);
result[CollidableCompressionContract.VelocityX] = Math.Round(obj.MovementController.Velocity.X, 2);
result[CollidableCompressionContract.VelocityY] = Math.Round(obj.MovementController.Velocity.Y, 2);
result[CollidableCompressionContract.ID] = obj.ID;
result[CollidableCompressionContract.Disposed] = Convert.ToInt32(obj.Disposed);
result[CollidableCompressionContract.Alive] = Convert.ToInt32(obj.LifeController.Alive);
result[CollidableCompressionContract.Health] = Math.Round(obj.LifeController.Health, 2);
}
public void ReverseInsert(Collidable obj)
{
// Check if object has left the bounds of this node then go up another level
if (!this.Bounds.Contains(obj.GetBounds()))
{
// NOTE: If you get an error here chances are an object is out of bounds. aka off the quad tree map.
// In order to avoid an additional check we assume that the obj is smaller than
// the root node.
if (this.Parent != null)
{
this.Parent.ReverseInsert(obj);
}
else
{
obj.SetMapArea(this);
lock (_locker)
{
this.Contents.Add(obj);
}
}
}
else
{
obj.SetMapArea(this);
lock (_locker)
{
this.Contents.Add(obj);
}
}
}
public void Insert(Collidable obj)
{
foreach (QuadTreeNode node in Children)
{
if (node.Bounds.Contains(obj.GetBounds()))
{
node.Insert(obj);
return;
}
}
// When we get here we're then "this" is currently the largest node to fit our object OR
// We're at a leaf node caused by the smallest possible partition width/height.
lock (_locker)
{
Contents.Add(obj);
}
obj.SetMapArea(this);
}
public bool ExistedLastPayload(string connectionID, Collidable obj)
{
return _lastCache.ContainsKey(connectionID) && _lastCache[connectionID].ContainsKey(obj.ServerID());
}
public KillEventArgs(Collidable killed)
{
Killed = killed;
}
public bool OnMap(Collidable obj)
{
return Area.Contains(obj.GetBounds());
}
public void Cache(string connectionID, Collidable obj)
{
_currentCache[connectionID].TryAdd(obj.ServerID(), true);
}
/// <summary>
/// Will return all objects "underneath" (in the tree) the obj.
/// Called partial because if an object "above" the obj is colliding
/// with it this function will not return that object. Therefore when
/// calling this function be sure to traverse the whole collision list.
/// </summary>
/// <param name="obj">Object to check collisions</param>
public List<Collidable> GetPartialCollisionCheckList(Collidable obj)
{
return obj.GetMapArea().GetSubTreeContents();
}
public void Insert(Collidable obj)
{
_root.Insert(obj);
}
public void HandleOutOfBounds(Collidable obj)
{
}
public void Monitor(Collidable obj)
{
_space.Insert(obj);
_objects.Add(obj);
}
public static bool OnMap(Collidable obj)
{
return _boundary.OnMap(obj);
}
public void Killed(Collidable who)
{
if (OnKill != null)
{
OnKill(this, new KillEventArgs(who));
}
}
public override void HandleCollisionWith(Collidable c, Map space)
{
}
/// <summary>
/// Updates the object and returns whether it still belongs to this node
/// </summary>
/// <param name="obj">Object to Update in the quad tree</param>
/// <returns>Whether the object moved</returns>
private bool UpdateObject(Collidable obj)
{
obj.ClearMapArea();
lock (_locker)
{
this.Contents.Remove(obj);
}
// Check if object has left the bounds of this node and is not root
if (!this.Bounds.Contains(obj.GetBounds()) && this.Parent != null)
{
// We now belong to a parent
this.Parent.ReverseInsert(obj);
return true;
}
else // We're within the same node, but could be in children, must insert
{
this.Insert(obj);
// If we didn't move quad tree nodes
if (obj.GetMapArea() == this)
{
return false;
}
else
{
return true;
}
}
}
public DeathEventArgs(Collidable killedBy)
{
KilledBy = killedBy;
}
/// <summary>
/// Calculates whether me and the collidable object <paramref name="c"/> are colliding.
/// </summary>
/// <param name="c">The object to check the collision against.</param>
/// <returns>Whether or not I am colliding with <paramref name="c"/>.</returns>
public virtual bool IsCollidingWith(Collidable c)
{
return _bounds.IntersectsWith(c.GetBounds());
}
public void Remove(Collidable obj)
{
_allObjects.Remove(obj);
_space.Remove(obj);
}
/// <summary>
/// Called when there is a collision with another object "<paramref name="c"/>."
/// </summary>
/// <param name="c">The object that I colided with</param>
public virtual void HandleCollisionWith(Collidable c, Map space)
{
HandleCollision();
}
public override bool IsCollidingWith(Collidable c)
{
return _snapShotManager.GetBoundsSnapShot().IntersectsWith(c.GetBounds());
}
public void UnMonitor(Collidable obj)
{
_space.Remove(obj);
_objects.Remove(obj);
}
public List<Collidable> GetPartialCollisionCheckList(Collidable obj)
{
return _space.GetPartialCollisionCheckList(obj);
}
public bool Contains(Collidable obj)
{
return _allObjects.Contains(obj);
}
public DeathEventArgs(Collidable killedBy)
{
KilledBy = killedBy;
}