Class WorkItemProcessor Extends IWorkItemContext

void AddWorkItem (

AstarWorkItem

item

)

Add a work item to be processed when pathfinding is paused.

void EnsureValidFloodFill ()

If a WorkItem needs to have a valid flood fill during execution, call this method to ensure there are no pending flood fills.

void OnFloodFill ()

bool ProcessWorkItems (

bool

force

)

Process graph updating work items.

Process all queued work items, e.g graph updates and the likes.

WorkItemProcessor (

AstarPath

astar

)

bool anyQueued

True if any work items are queued right now.

bool workItemsInProgress

True while a batch of work items are being processed.

Set to true when a work item is started to be processed, reset to false when all work items are complete.

Work item updates are often spread out over several frames, this flag will be true during the whole time the updates are in progress.

bool workItemsInProgressRightNow

Used to prevent waiting for work items to complete inside other work items as that will cause the program to hang.

bool anyGraphsDirty = true

AstarPath astar

bool queuedWorkItemFloodFill = false

True if any work items have queued a flood fill.

void IWorkItemContext. QueueFloodFill ()

Call during work items to queue a flood fill.

An instant flood fill can be done via FloodFill() but this method can be used to batch several updates into one to increase performance. WorkItems which require a valid Flood Fill in their execution can call EnsureValidFloodFill to ensure that a flood fill is done if any earlier work items queued one.

Once a flood fill is queued it will be done after all WorkItems have been executed.

void IWorkItemContext. SetGraphDirty (

NavGraph

graph

)

Trigger a graph modification event.

This will cause a #Pathfinding.GraphModifier.PostUpdate event to be issued after all graph updates have finished. If a graph is dirtied multiple times, or even if multiple graphs are dirtied, the event will only be sent once.

IndexedQueue<AstarWorkItem> workItems = new IndexedQueue<AstarWorkItem>()