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package NET.worlds.scape;
import java.util.Enumeration;
import java.util.Vector;
public class DeepEnumeration<K> implements Enumeration<K> {
Vector<SuperRoot> roots = new Vector<SuperRoot>();
Vector<Vector<K>> vectors = new Vector<Vector<K>>();
Vector<K> currentVector = null;
int currentIndex = -1;
SuperRoot nextValue = null;
protected boolean valueRetrieved = true;
public DeepEnumeration(SuperRoot o) {
this.addChildElement(o);
}
public DeepEnumeration(Vector<K> v) {
this.addChildVector(v);
}
public DeepEnumeration(Enumeration<K> e) {
this.addChildEnumeration(e);
}
public DeepEnumeration() {
}
@Override
public boolean hasMoreElements() {
if (this.valueRetrieved) {
this.getNextElement();
}
return this.nextValue != null;
}
@Override
public K nextElement() {
if (this.valueRetrieved) {
this.getNextElement();
}
this.valueRetrieved = true;
return (K)this.nextValue;
}
protected void getNextElement() {
this.valueRetrieved = false;
if (!this.roots.isEmpty()) {
this.nextValue = this.roots.elementAt(this.roots.size() - 1);
this.roots.removeElementAt(this.roots.size() - 1);
assert this.nextValue != null;
this.nextValue.getChildren(this);
} else if (this.currentIndex >= 0) {
try {
this.nextValue = (SuperRoot)this.currentVector.elementAt(this.currentIndex--);
} catch (ArrayIndexOutOfBoundsException var2) {
this.currentIndex = this.currentVector.size() - 1;
this.getNextElement();
}
assert this.nextValue != null;
this.nextValue.getChildren(this);
} else if (!this.vectors.isEmpty()) {
this.currentVector = this.vectors.elementAt(this.vectors.size() - 1);
this.currentIndex = this.currentVector.size() - 1;
this.vectors.removeElementAt(this.vectors.size() - 1);
this.getNextElement();
} else {
this.nextValue = null;
}
}
public void addChildVector(Vector<K> eventHandlers) {
assert eventHandlers != null;
this.vectors.addElement(eventHandlers);
}
public void addChildEnumeration(Enumeration<K> e) {
assert e != null;
while (e.hasMoreElements()) {
this.addChildElement(e.nextElement());
}
}
public void addChildVectorWithNulls(Vector<K> v) {
assert v != null;
for (int i = v.size() - 1; i >= 0; i--) {
Object obj = v.elementAt(i--);
if (obj != null) {
this.addChildElement(obj);
}
}
}
public void addChildElement(Object o) {
assert o != null;
this.roots.addElement((SuperRoot)o);
}
public void addChildVectorAction(Vector<K> actions) {
assert actions != null;
this.vectors.addElement(actions);
}
}
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