org.piccolo2d.extras.util

Class POcclusionDetection

java.lang.Object

org.piccolo2d.extras.util.POcclusionDetection

public class POcclusionDetection
extends Object

Experimental class for detecting occlusions.

Author:

Jesse Grosjean

Constructor Summary

Constructors

Constructor and Description
POcclusionDetection()

Method Summary

Methods

Modifier and Type	Method and Description
void	detectOcclusions(PNode node, PPickPath pickPath) Traverse the pick path determining which parent nodes are occluded by their children nodes.
void	detectOccusions(PNode n, PBounds parentBounds) Traverse from the bottom right of the scene graph (top visible node) up the tree determining which parent nodes are occluded by their children nodes.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

POcclusionDetection

public POcclusionDetection()

Method Detail

detectOccusions

public void detectOccusions(PNode n,
                   PBounds parentBounds)

Traverse from the bottom right of the scene graph (top visible node) up the tree determining which parent nodes are occluded by their children nodes. Note that this is only detecting a subset of occlusions (parent, child), others such as overlapping siblings or cousins are not detected.

Parameters:

n - node from which to detect occlusions

parentBounds - bounds of parent node

detectOcclusions

public void detectOcclusions(PNode node,
                    PPickPath pickPath)

Traverse the pick path determining which parent nodes are occluded by their children nodes. Note that this is only detecting a subset of occlusions (parent, child), others such as overlapping siblings or cousins are not detected.

Parameters:

node - node from which to detect occlusions

pickPath - Pick Path to traverse