BehaviorTree::ProbabilityNode Class Reference

Executes behaviors randomly, based on a given set of weights. More...

#include <ProbabilityNode.h>

Inheritance diagram for BehaviorTree::ProbabilityNode:

Collaboration diagram for BehaviorTree::ProbabilityNode:

Public Member Functions
	ProbabilityNode ()
virtual	~ProbabilityNode ()
virtual BehaviorTreeNode *	setChildren (BehaviorTreeNode *node,...)
	Sets children, giving them all the same weight. More...
virtual BehaviorTreeNode *	setWeightedChildren (WeightedBehaviorTreeNode weightedNode,...)
void	init (void *object)
BEHAVIOR_STATUS	execute (void *object)
	This method is invoked by the node's parent when the node should be run. More...
Public Member Functions inherited from BehaviorTree::BehaviorTreeInternalNode
	BehaviorTreeInternalNode ()
virtual	~BehaviorTreeInternalNode ()
virtual BehaviorTreeNode *	_setChildren (BehaviorTreeNode *node, va_list nodeList)
	Helper method for setChildren(). More...
Public Member Functions inherited from BehaviorTree::BehaviorTreeNode
virtual	~BehaviorTreeNode ()

Private Attributes
MTRand_closed	random
float	totalSum
BehaviorTreeNode *	currentNode
float *	weighting

Additional Inherited Members
Public Attributes inherited from BehaviorTree::BehaviorTreeInternalNode
BehaviorTreeNode **	children
	This node's children nodes. More...
uint8_t	nChildren
	The number of children of this node. More...

Detailed Description

Executes behaviors randomly, based on a given set of weights.

The weights are not percentages, but rather simple ratios.

For example, if there were two children with a weight of one, each would have a 50% chance of being executed. If another child with a weight of eight were added, the previous children would have a 10% chance of being executed, and the new child would have an 80% chance of being executed. This weight system is intended to facilitate the fine-tuning of behaviors.

Constructor & Destructor Documentation

ProbabilityNode::ProbabilityNode

(

)

ProbabilityNode::~ProbabilityNode ( )

virtual

Member Function Documentation

BEHAVIOR_STATUS ProbabilityNode::execute ( void *  agent )

virtual

This method is invoked by the node's parent when the node should be run.

Implements BehaviorTree::BehaviorTreeInternalNode.

void ProbabilityNode::init ( void *  object )

virtual

Adds a child to the node with specific weight. Deprecated: use setWeightedChildren() method instead.

Deprecated:

Implements BehaviorTree::BehaviorTreeInternalNode.

BehaviorTreeNode * ProbabilityNode::setChildren ( BehaviorTreeNode *  node,   ...  )

virtual

Sets children, giving them all the same weight.

Reimplemented from BehaviorTree::BehaviorTreeInternalNode.

BehaviorTreeNode * ProbabilityNode::setWeightedChildren ( WeightedBehaviorTreeNode  weightedNode,   ...  )

virtual

Sets children with different weights. Accepts WeightedBehaviorTreeNode instead of BehaviorTreeNode. List of arguments should be terminated by WeightedBehaviorTreeNode::NULL_WEIGHTED_NODE.

Member Data Documentation

BehaviorTreeNode* BehaviorTree::ProbabilityNode::currentNode

private

MTRand_closed BehaviorTree::ProbabilityNode::random

private

float BehaviorTree::ProbabilityNode::totalSum

private

float* BehaviorTree::ProbabilityNode::weighting

private

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The documentation for this class was generated from the following files:

• src/qualia/plugins/bt/ProbabilityNode.h
• src/qualia/plugins/bt/ProbabilityNode.cpp