AlternativePath Class Reference

Applies penalty to the paths it processes telling other units to avoid choosing the same path. More...

Detailed Description

Applies penalty to the paths it processes telling other units to avoid choosing the same path.

Note that this might not work properly if penalties are modified by other actions as well (e.g graph update objects which reset the penalty to zero). It will only work when all penalty modifications are relative, i.e adding or subtracting penalties, but not when setting penalties to specific values.

When destroyed, it will correctly remove any added penalty. However it will only be done before the next path request is calculated, so if this was the last path requesting unit to be destroyed, the penalty will stay in the graph until the next path request is made.

Public Member Functions
override void	Apply (Path p, ModifierData source)
	Main Post-Processing function.
new void	OnDestroy ()
Public Member Functions inherited from MonoModifier
virtual Vector3[]	Apply (GraphNode[] path, Vector3 start, Vector3 end, int startIndex, int endIndex, NavGraph graph)
virtual Vector3[]	Apply (Vector3[] path, Vector3 start, Vector3 end)
virtual void	ApplyOriginal (Path p)
void	Awake ()
	Alerts the Seeker that this modifier exists.
void	OnDestroy ()
void	OnDisable ()
void	OnEnable ()
virtual void	PreProcess (Path p)
Public Member Functions inherited from IPathModifier
void	Apply (Path p, ModifierData source)
void	ApplyOriginal (Path p)
void	PreProcess (Path p)

Public Attributes
int	penalty = 1000
	How much penalty (weight) to apply to nodes.
int	randomStep = 10
	Max number of nodes to skip in a row.
Public Attributes inherited from MonoModifier
int	priority = 0
	Higher priority modifiers are executed first.
Seeker	seeker

Properties
override ModifierData	input [get]
override ModifierData	output [get]
Properties inherited from MonoModifier
abstract ModifierData	input [get]
abstract ModifierData	output [get]
int	Priority [get, set]
Properties inherited from IPathModifier
ModifierData	input [get]
ModifierData	output [get]
int	Priority [get, set]

Private Member Functions
void	ApplyNow (Path somePath)
void	ClearOnDestroy (Path p)
void	InversePrevious ()

Private Attributes
bool	destroyed = false
System.Object	lockObject = new System.Object ()
GraphNode[]	prevNodes
	The previous path.
int	prevPenalty = 0
	The previous penalty used.
int	prevSeed
	Previous seed.
System.Random	rnd = new System.Random ()
	A random object.
System.Random	seedGenerator = new System.Random ()
	A random object generating random seeds for other random objects.
GraphNode[]	toBeApplied
	The nodes waiting to have their penalty changed.
bool	waitingForApply = false

Member Function Documentation

override void Apply ( Path  p, ModifierData  source  )

virtual

Main Post-Processing function.

Implements MonoModifier.

void ApplyNow ( Path  somePath )

private

void ClearOnDestroy ( Path  p )

private

void InversePrevious ( )

private

new void OnDestroy

(

)

Member Data Documentation

bool destroyed = false

private

System.Object lockObject = new System.Object ()

private

int penalty = 1000

How much penalty (weight) to apply to nodes.

GraphNode [] prevNodes

private

The previous path.

int prevPenalty = 0

private

The previous penalty used.

Stored just in case it changes during operation

int prevSeed

private

Previous seed.

Used to figure out which nodes to revert penalty on without storing them in an array

int randomStep = 10

Max number of nodes to skip in a row.

System.Random rnd = new System.Random ()

private

A random object.

System.Random seedGenerator = new System.Random ()

private

A random object generating random seeds for other random objects.

GraphNode [] toBeApplied

private

The nodes waiting to have their penalty changed.

bool waitingForApply = false

private

Property Documentation

override ModifierData input

get

override ModifierData output

get

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

• /Users/arong/Unity/a-pathfinding-project/Assets/AstarPathfindingProject/Modifiers/AlternativePath.cs