public static Component GetChild(Component pLink)
{
Debug.Assert(pLink != null);
// Assume it is a Leaf, therefore no children.
Component pChild = null;
if (pLink.holder == Component.Container.COMPOSITE)
{
//could have children, go look.
pChild = pLink.GetFirstChild();
}
return(pChild);
}
static public Component GetChild(Component pNode)
{
Debug.Assert(pNode != null);
Component pChild;
if (pNode.holder == Component.Container.COMPOSITE)
{
pChild = pNode.GetFirstChild();
}
else
{
pChild = null;
}
return(pChild);
}
private Component ReturnChildOrSibling(Component pNode, Component pSibling)
{
Component pFirstChild = pNode.GetFirstChild();
// If has children, return first child
if (pFirstChild != null)
{
return(pFirstChild);
}
// Else if node has sibling, return sibling
else if (pSibling != null)
{
return(pSibling);
}
// If node has neither child nor sibling
return(null);
}
// TODO Clean this up
public override void Notify()
{
//Debug.WriteLine("RemoveShieldBrickObserver: {0} {1}", this.pSubject.pObjA, this.pSubject.pObjB);
// This cast will throw an exception if wrong
this.pShieldBrick = (ShieldBrick)this.pSubject.pObjA;
this.pColComposite = null;
this.pShieldComposite = null;
// Remove Shield from composite
Composite pShieldGrid = GameStateManager.GetGame().GetStateCompositeManager().Find(Composite.CompositeName.ShieldGroup);
ForwardIterator pFwdIter = new ForwardIterator(pShieldGrid);
Component pNode = pFwdIter.First();
while (!pFwdIter.IsDone())
{
if (pNode.containerType == Component.Container.LEAF)
{
// If Component is target shield brick
if (pNode.GetHashCode() == this.pShieldBrick.GetHashCode())
{
// Remove shield brick from column
pNode.pParent.Remove(pNode);
// Get references to parent composites
Component pShieldColComposite = pNode.pParent;
Component pShieldComposite = null;
if (pShieldColComposite != null)
{
pShieldComposite = pShieldColComposite.pParent;
}
// If column is now empty, delete column
if (pShieldColComposite.GetFirstChild() == null)
{
// Delete empty column from parent composite
if (pShieldColComposite.pParent != null)
{
pShieldColComposite.pParent.Remove(pShieldColComposite);
}
// Mark empty column for death
if (!((GameObject)pShieldColComposite).IsMarkedForDeath())
{
this.pColComposite = (GameObject)pShieldColComposite;
this.pColComposite.MarkForDeath();
}
}
// If Shield is now empty, delete column
if (pShieldComposite.GetFirstChild() == null)
{
// Delete empty shield from parent composite
if (pShieldComposite.pParent != null)
{
pShieldComposite.pParent.Remove(pShieldComposite);
}
// Mark empty shield for death
if (!((GameObject)pShieldComposite).IsMarkedForDeath())
{
this.pShieldComposite = (GameObject)pShieldComposite;
this.pShieldComposite.MarkForDeath();
}
}
break;
}
}
pNode = pFwdIter.Next();
}
if (!pShieldBrick.IsMarkedForDeath())
{
pShieldBrick.MarkForDeath();
// Delay - remove object later
RemoveShieldBrickObserver pObserver = new RemoveShieldBrickObserver(this);
GameStateManager.GetGame().GetStateDelayedObjectManager().Attach(pObserver);
}
}
public override void Notify()
{
// Delete missile
//Debug.WriteLine("RemoveAlienObserver: {0} {1}", this.pSubject.pObjA, this.pSubject.pObjB);
// This cast will throw an exception if wrong
this.pAlien = (Alien)this.pSubject.pObjA;
this.pComposite = null;
// Remove Alien from composite
Composite pAlienGrid = GameStateManager.GetGame().GetStateCompositeManager().Find(Composite.CompositeName.AlienGrid);
ForwardIterator pFwdIter = new ForwardIterator(pAlienGrid);
Component pNode = pFwdIter.First();
while (!pFwdIter.IsDone())
{
if (pNode.containerType == Component.Container.LEAF)
{
// If Component is target alien
if (pNode.GetHashCode() == this.pAlien.GetHashCode())
{
// Remove Alien from column
pNode.pParent.Remove(pNode);
Component parentComposite = pNode.pParent;
// If column is now empty, delete column
if (parentComposite.GetFirstChild() == null)
{
// Delete empty column from parent composite
if (parentComposite.pParent != null)
{
parentComposite.pParent.Remove(parentComposite);
}
if (!((GameObject)parentComposite).IsMarkedForDeath())
{
// Delay - remove object later
this.pComposite = (GameObject)parentComposite;
this.pComposite.MarkForDeath();
}
}
break;
}
}
pNode = pFwdIter.Next();
}
if (!pAlien.IsMarkedForDeath())
{
pAlien.MarkForDeath();
// Delay - remove object later
RemoveAlienObserver pObserver = new RemoveAlienObserver(this);
GameStateManager.GetGame().GetStateDelayedObjectManager().Attach(pObserver);
}
// Faster grid speed (shorter delta)
float newSpeed = GameStateManager.GetGame().GetStateAlienGridSpeed() - 0.013f;
if (newSpeed > 0.0f)
{
// Increase Alien Grid Speed
GameStateManager.GetGame().SetStateAlienGridSpeed(newSpeed);
}
}
static public Component GetChild(Component pNode)
{
Debug.Assert(pNode != null);
return(pNode.GetFirstChild());
}