Crowd manager scene component. Should be added only to the root scene node. More...

#include <Urho3D/Navigation/CrowdManager.h>

Inheritance diagram for Urho3D::CrowdManager:
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Collaboration diagram for Urho3D::CrowdManager:
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Public Member Functions

 CrowdManager (Context *context)
 Construct.
 
virtual ~CrowdManager () override
 Destruct.
 
virtual void ApplyAttributes () override
 Apply attribute changes that can not be applied immediately. Called after scene load or a network update.
 
virtual void DrawDebugGeometry (DebugRenderer *debug, bool depthTest) override
 Draw the agents' pathing debug data.
 
void DrawDebugGeometry (bool depthTest)
 Add debug geometry to the debug renderer.
 
void SetCrowdTarget (const Vector3 &position, Node *node=nullptr)
 Set the crowd target position. The target position is set to all crowd agents found in the specified node. Defaulted to scene node.
 
void SetCrowdVelocity (const Vector3 &velocity, Node *node=nullptr)
 Set the crowd move velocity. The move velocity is applied to all crowd agents found in the specified node. Defaulted to scene node.
 
void ResetCrowdTarget (Node *node=nullptr)
 Reset any crowd target for all crowd agents found in the specified node. Defaulted to scene node.
 
void SetMaxAgents (unsigned maxAgents)
 Set the maximum number of agents.
 
void SetMaxAgentRadius (float maxAgentRadius)
 Set the maximum radius of any agent.
 
void SetNavigationMesh (NavigationMesh *navMesh)
 Assigns the navigation mesh for the crowd.
 
void SetQueryFilterTypesAttr (const VariantVector &value)
 Set all the query filter types configured in the crowd based on the corresponding attribute.
 
void SetIncludeFlags (unsigned queryFilterType, unsigned short flags)
 Set the include flags for the specified query filter type.
 
void SetExcludeFlags (unsigned queryFilterType, unsigned short flags)
 Set the exclude flags for the specified query filter type.
 
void SetAreaCost (unsigned queryFilterType, unsigned areaID, float cost)
 Set the cost of an area for the specified query filter type.
 
void SetObstacleAvoidanceTypesAttr (const VariantVector &value)
 Set all the obstacle avoidance types configured in the crowd based on the corresponding attribute.
 
void SetObstacleAvoidanceParams (unsigned obstacleAvoidanceType, const CrowdObstacleAvoidanceParams &params)
 Set the params for the specified obstacle avoidance type.
 
PODVector< CrowdAgent * > GetAgents (Node *node=nullptr, bool inCrowdFilter=true) const
 Get all the crowd agent components in the specified node hierarchy. If the node is not specified then use scene node. When inCrowdFilter is set to true then only get agents that are in the crowd.
 
Vector3 FindNearestPoint (const Vector3 &point, int queryFilterType, dtPolyRef *nearestRef=nullptr)
 Find the nearest point on the navigation mesh to a given point using the crowd initialized query extent (based on maxAgentRadius) and the specified query filter type.
 
Vector3 MoveAlongSurface (const Vector3 &start, const Vector3 &end, int queryFilterType, int maxVisited=3)
 Try to move along the surface from one point to another using the crowd initialized query extent (based on maxAgentRadius) and the specified query filter type.
 
void FindPath (PODVector< Vector3 > &dest, const Vector3 &start, const Vector3 &end, int queryFilterType)
 Find a path between world space points using the crowd initialized query extent (based on maxAgentRadius) and the specified query filter type. Return non-empty list of points if successful.
 
Vector3 GetRandomPoint (int queryFilterType, dtPolyRef *randomRef=nullptr)
 Return a random point on the navigation mesh using the crowd initialized query extent (based on maxAgentRadius) and the specified query filter type.
 
Vector3 GetRandomPointInCircle (const Vector3 &center, float radius, int queryFilterType, dtPolyRef *randomRef=nullptr)
 Return a random point on the navigation mesh within a circle using the crowd initialized query extent (based on maxAgentRadius) and the specified query filter type. The circle radius is only a guideline and in practice the returned point may be further away.
 
float GetDistanceToWall (const Vector3 &point, float radius, int queryFilterType, Vector3 *hitPos=nullptr, Vector3 *hitNormal=nullptr)
 Return distance to wall from a point using the crowd initialized query extent (based on maxAgentRadius) and the specified query filter type. Maximum search radius must be specified.
 
Vector3 Raycast (const Vector3 &start, const Vector3 &end, int queryFilterType, Vector3 *hitNormal=nullptr)
 Perform a walkability raycast on the navigation mesh between start and end using the crowd initialized query extent (based on maxAgentRadius) and the specified query filter type. Return the point where a wall was hit, or the end point if no walls.
 
unsigned GetMaxAgents () const
 Get the maximum number of agents.
 
float GetMaxAgentRadius () const
 Get the maximum radius of any agent.
 
NavigationMeshGetNavigationMesh () const
 Get the Navigation mesh assigned to the crowd.
 
unsigned GetNumQueryFilterTypes () const
 Get the number of configured query filter types.
 
unsigned GetNumAreas (unsigned queryFilterType) const
 Get the number of configured area in the specified query filter type.
 
VariantVector GetQueryFilterTypesAttr () const
 Return all the filter types configured in the crowd as attribute.
 
unsigned short GetIncludeFlags (unsigned queryFilterType) const
 Get the include flags for the specified query filter type.
 
unsigned short GetExcludeFlags (unsigned queryFilterType) const
 Get the exclude flags for the specified query filter type.
 
float GetAreaCost (unsigned queryFilterType, unsigned areaID) const
 Get the cost of an area for the specified query filter type.
 
unsigned GetNumObstacleAvoidanceTypes () const
 Get the number of configured obstacle avoidance types.
 
VariantVector GetObstacleAvoidanceTypesAttr () const
 Return all the obstacle avoidance types configured in the crowd as attribute.
 
const
CrowdObstacleAvoidanceParams
GetObstacleAvoidanceParams (unsigned obstacleAvoidanceType) const
 Get the params for the specified obstacle avoidance type.
 
- Public Member Functions inherited from Urho3D::Component
 Component (Context *context)
 Construct.
 
virtual ~Component () override
 Destruct.
 
virtual void OnSetEnabled ()
 Handle enabled/disabled state change.
 
virtual bool Save (Serializer &dest) const override
 Save as binary data. Return true if successful.
 
virtual bool SaveXML (XMLElement &dest) const override
 Save as XML data. Return true if successful.
 
virtual bool SaveJSON (JSONValue &dest) const override
 Save as JSON data. Return true if successful.
 
virtual void MarkNetworkUpdate () override
 Mark for attribute check on the next network update.
 
virtual void GetDependencyNodes (PODVector< Node * > &dest)
 Return the depended on nodes to order network updates.
 
void SetEnabled (bool enable)
 Set enabled/disabled state.
 
void Remove ()
 Remove from the scene node. If no other shared pointer references exist, causes immediate deletion.
 
unsigned GetID () const
 Return ID.
 
NodeGetNode () const
 Return scene node.
 
SceneGetScene () const
 Return the scene the node belongs to.
 
bool IsEnabled () const
 Return whether is enabled.
 
bool IsEnabledEffective () const
 Return whether is effectively enabled (node is also enabled.)
 
ComponentGetComponent (StringHash type) const
 Return component in the same scene node by type. If there are several, returns the first.
 
void GetComponents (PODVector< Component * > &dest, StringHash type) const
 Return components in the same scene node by type.
 
template<class T >
T * GetComponent () const
 Template version of returning a component in the same scene node by type.
 
template<class T >
void GetComponents (PODVector< T * > &dest) const
 Template version of returning components in the same scene node by type.
 
void AddReplicationState (ComponentReplicationState *state)
 Add a replication state that is tracking this component.
 
void PrepareNetworkUpdate ()
 Prepare network update by comparing attributes and marking replication states dirty as necessary.
 
void CleanupConnection (Connection *connection)
 Clean up all references to a network connection that is about to be removed.
 
- Public Member Functions inherited from Urho3D::Animatable
 Animatable (Context *context)
 Construct.
 
virtual ~Animatable () override
 Destruct.
 
virtual bool LoadXML (const XMLElement &source, bool setInstanceDefault=false) override
 Load from XML data. When setInstanceDefault is set to true, after setting the attribute value, store the value as instance's default value. Return true if successful.
 
virtual bool LoadJSON (const JSONValue &source, bool setInstanceDefault=false) override
 Load from JSON data. When setInstanceDefault is set to true, after setting the attribute value, store the value as instance's default value. Return true if successful.
 
void SetAnimationEnabled (bool enable)
 Set automatic update of animation, default true.
 
void SetAnimationTime (float time)
 Set time position of all attribute animations or an object animation manually. Automatic update should be disabled in this case.
 
void SetObjectAnimation (ObjectAnimation *objectAnimation)
 Set object animation.
 
void SetAttributeAnimation (const String &name, ValueAnimation *attributeAnimation, WrapMode wrapMode=WM_LOOP, float speed=1.0f)
 Set attribute animation.
 
void SetAttributeAnimationWrapMode (const String &name, WrapMode wrapMode)
 Set attribute animation wrap mode.
 
void SetAttributeAnimationSpeed (const String &name, float speed)
 Set attribute animation speed.
 
void SetAttributeAnimationTime (const String &name, float time)
 Set attribute animation time position manually. Automatic update should be disabled in this case.
 
void RemoveObjectAnimation ()
 Remove object animation. Same as calling SetObjectAnimation with a null pointer.
 
void RemoveAttributeAnimation (const String &name)
 Remove attribute animation. Same as calling SetAttributeAnimation with a null pointer.
 
bool GetAnimationEnabled () const
 Return animation enabled.
 
ObjectAnimationGetObjectAnimation () const
 Return object animation.
 
ValueAnimationGetAttributeAnimation (const String &name) const
 Return attribute animation.
 
WrapMode GetAttributeAnimationWrapMode (const String &name) const
 Return attribute animation wrap mode.
 
float GetAttributeAnimationSpeed (const String &name) const
 Return attribute animation speed.
 
float GetAttributeAnimationTime (const String &name) const
 Return attribute animation time position.
 
void SetObjectAnimationAttr (const ResourceRef &value)
 Set object animation attribute.
 
ResourceRef GetObjectAnimationAttr () const
 Return object animation attribute.
 
- Public Member Functions inherited from Urho3D::Serializable
 Serializable (Context *context)
 Construct.
 
virtual ~Serializable () override
 Destruct.
 
virtual void OnSetAttribute (const AttributeInfo &attr, const Variant &src)
 Handle attribute write access. Default implementation writes to the variable at offset, or invokes the set accessor.
 
virtual void OnGetAttribute (const AttributeInfo &attr, Variant &dest) const
 Handle attribute read access. Default implementation reads the variable at offset, or invokes the get accessor.
 
virtual const Vector
< AttributeInfo > * 
GetAttributes () const
 Return attribute descriptions, or null if none defined.
 
virtual const Vector
< AttributeInfo > * 
GetNetworkAttributes () const
 Return network replication attribute descriptions, or null if none defined.
 
virtual bool Load (Deserializer &source, bool setInstanceDefault=false)
 Load from binary data. When setInstanceDefault is set to true, after setting the attribute value, store the value as instance's default value. Return true if successful.
 
virtual bool SaveDefaultAttributes () const
 Return whether should save default-valued attributes into XML. Default false.
 
bool SetAttribute (unsigned index, const Variant &value)
 Set attribute by index. Return true if successfully set.
 
bool SetAttribute (const String &name, const Variant &value)
 Set attribute by name. Return true if successfully set.
 
void ResetToDefault ()
 Reset all editable attributes to their default values.
 
void RemoveInstanceDefault ()
 Remove instance's default values if they are set previously.
 
void SetTemporary (bool enable)
 Set temporary flag. Temporary objects will not be saved.
 
void SetInterceptNetworkUpdate (const String &attributeName, bool enable)
 Enable interception of an attribute from network updates. Intercepted attributes are sent as events instead of applying directly. This can be used to implement client side prediction.
 
void AllocateNetworkState ()
 Allocate network attribute state.
 
void WriteInitialDeltaUpdate (Serializer &dest, unsigned char timeStamp)
 Write initial delta network update.
 
void WriteDeltaUpdate (Serializer &dest, const DirtyBits &attributeBits, unsigned char timeStamp)
 Write a delta network update according to dirty attribute bits.
 
void WriteLatestDataUpdate (Serializer &dest, unsigned char timeStamp)
 Write a latest data network update.
 
bool ReadDeltaUpdate (Deserializer &source)
 Read and apply a network delta update. Return true if attributes were changed.
 
bool ReadLatestDataUpdate (Deserializer &source)
 Read and apply a network latest data update. Return true if attributes were changed.
 
Variant GetAttribute (unsigned index) const
 Return attribute value by index. Return empty if illegal index.
 
Variant GetAttribute (const String &name) const
 Return attribute value by name. Return empty if not found.
 
Variant GetAttributeDefault (unsigned index) const
 Return attribute default value by index. Return empty if illegal index.
 
Variant GetAttributeDefault (const String &name) const
 Return attribute default value by name. Return empty if not found.
 
unsigned GetNumAttributes () const
 Return number of attributes.
 
unsigned GetNumNetworkAttributes () const
 Return number of network replication attributes.
 
bool IsTemporary () const
 Return whether is temporary.
 
bool GetInterceptNetworkUpdate (const String &attributeName) const
 Return whether an attribute's network updates are being intercepted.
 
NetworkStateGetNetworkState () const
 Return the network attribute state, if allocated.
 
- Public Member Functions inherited from Urho3D::Object
 Object (Context *context)
 Construct.
 
virtual ~Object () override
 Destruct. Clean up self from event sender & receiver structures.
 
virtual StringHash GetType () const =0
 Return type hash.
 
virtual const StringGetTypeName () const =0
 Return type name.
 
virtual const TypeInfoGetTypeInfo () const =0
 Return type info.
 
virtual void OnEvent (Object *sender, StringHash eventType, VariantMap &eventData)
 Handle event.
 
bool IsInstanceOf (StringHash type) const
 Check current instance is type of specified type.
 
bool IsInstanceOf (const TypeInfo *typeInfo) const
 Check current instance is type of specified type.
 
template<typename T >
bool IsInstanceOf () const
 Check current instance is type of specified class.
 
template<typename T >
T * Cast ()
 Cast the object to specified most derived class.
 
template<typename T >
const T * Cast () const
 Cast the object to specified most derived class.
 
void SubscribeToEvent (StringHash eventType, EventHandler *handler)
 Subscribe to an event that can be sent by any sender.
 
void SubscribeToEvent (Object *sender, StringHash eventType, EventHandler *handler)
 Subscribe to a specific sender's event.
 
void SubscribeToEvent (StringHash eventType, const std::function< void(StringHash, VariantMap &)> &function, void *userData=nullptr)
 Subscribe to an event that can be sent by any sender.
 
void SubscribeToEvent (Object *sender, StringHash eventType, const std::function< void(StringHash, VariantMap &)> &function, void *userData=nullptr)
 Subscribe to a specific sender's event.
 
void UnsubscribeFromEvent (StringHash eventType)
 Unsubscribe from an event.
 
void UnsubscribeFromEvent (Object *sender, StringHash eventType)
 Unsubscribe from a specific sender's event.
 
void UnsubscribeFromEvents (Object *sender)
 Unsubscribe from a specific sender's events.
 
void UnsubscribeFromAllEvents ()
 Unsubscribe from all events.
 
void UnsubscribeFromAllEventsExcept (const PODVector< StringHash > &exceptions, bool onlyUserData)
 Unsubscribe from all events except those listed, and optionally only those with userdata (script registered events.)
 
void SendEvent (StringHash eventType)
 Send event to all subscribers.
 
void SendEvent (StringHash eventType, VariantMap &eventData)
 Send event with parameters to all subscribers.
 
VariantMapGetEventDataMap () const
 Return a preallocated map for event data. Used for optimization to avoid constant re-allocation of event data maps.
 
template<typename... Args>
void SendEvent (StringHash eventType, Args...args)
 Send event with variadic parameter pairs to all subscribers. The parameter pairs is a list of paramID and paramValue separated by comma, one pair after another.
 
ContextGetContext () const
 Return execution context.
 
const VariantGetGlobalVar (StringHash key) const
 Return global variable based on key.
 
const VariantMapGetGlobalVars () const
 Return all global variables.
 
void SetGlobalVar (StringHash key, const Variant &value)
 Set global variable with the respective key and value.
 
ObjectGetSubsystem (StringHash type) const
 Return subsystem by type.
 
ObjectGetEventSender () const
 Return active event sender. Null outside event handling.
 
EventHandlerGetEventHandler () const
 Return active event handler. Null outside event handling.
 
bool HasSubscribedToEvent (StringHash eventType) const
 Return whether has subscribed to an event without specific sender.
 
bool HasSubscribedToEvent (Object *sender, StringHash eventType) const
 Return whether has subscribed to a specific sender's event.
 
bool HasEventHandlers () const
 Return whether has subscribed to any event.
 
template<class T >
T * GetSubsystem () const
 Template version of returning a subsystem.
 
const StringGetCategory () const
 Return object category. Categories are (optionally) registered along with the object factory. Return an empty string if the object category is not registered.
 
void SetBlockEvents (bool block)
 Block object from sending and receiving events.
 
bool GetBlockEvents () const
 Return sending and receiving events blocking status.
 
- Public Member Functions inherited from Urho3D::RefCounted
 RefCounted ()
 Construct. Allocate the reference count structure and set an initial self weak reference.
 
virtual ~RefCounted ()
 Destruct. Mark as expired and also delete the reference count structure if no outside weak references exist.
 
void AddRef ()
 Increment reference count. Can also be called outside of a SharedPtr for traditional reference counting.
 
void ReleaseRef ()
 Decrement reference count and delete self if no more references. Can also be called outside of a SharedPtr for traditional reference counting.
 
int Refs () const
 Return reference count.
 
int WeakRefs () const
 Return weak reference count.
 
RefCountRefCountPtr ()
 Return pointer to the reference count structure.
 

Static Public Member Functions

static void RegisterObject (Context *context)
 Register object factory.
 
- Static Public Member Functions inherited from Urho3D::Animatable
static void RegisterObject (Context *context)
 Register object factory.
 
- Static Public Member Functions inherited from Urho3D::Object
static const TypeInfoGetTypeInfoStatic ()
 Return type info static.
 

Protected Member Functions

bool CreateCrowd ()
 Create and initialized internal Detour crowd object. When it is a recreate, it preserves the configuration and attempts to re-add existing agents in the previous crowd back to the newly created crowd.
 
int AddAgent (CrowdAgent *agent, const Vector3 &pos)
 Create and adds an detour crowd agent, Agent's radius and height is set through the navigation mesh. Return -1 on error, agent ID on success.
 
void RemoveAgent (CrowdAgent *agent)
 Removes the detour crowd agent.
 
virtual void OnSceneSet (Scene *scene) override
 Handle scene being assigned.
 
void Update (float delta)
 Update the crowd simulation.
 
const dtCrowdAgent * GetDetourCrowdAgent (int agent) const
 Get the detour crowd agent.
 
const dtQueryFilter * GetDetourQueryFilter (unsigned queryFilterType) const
 Get the detour query filter.
 
dtCrowd * GetCrowd () const
 Get the internal detour crowd component.
 
- Protected Member Functions inherited from Urho3D::Component
virtual void OnAttributeAnimationAdded () override
 Handle attribute animation added.
 
virtual void OnAttributeAnimationRemoved () override
 Handle attribute animation removed.
 
virtual void OnNodeSet (Node *node)
 Handle scene node being assigned at creation.
 
virtual void OnMarkedDirty (Node *node)
 Handle scene node transform dirtied.
 
virtual void OnNodeSetEnabled (Node *node)
 Handle scene node enabled status changing.
 
void SetID (unsigned id)
 Set ID. Called by Scene.
 
void SetNode (Node *node)
 Set scene node. Called by Node when creating the component.
 
void HandleAttributeAnimationUpdate (StringHash eventType, VariantMap &eventData)
 Handle scene attribute animation update event.
 
ComponentGetFixedUpdateSource ()
 Return a component from the scene root that sends out fixed update events (either PhysicsWorld or PhysicsWorld2D). Return null if neither exists.
 
void DoAutoRemove (AutoRemoveMode mode)
 Perform autoremove. Called by subclasses. Caller should keep a weak pointer to itself to check whether was actually removed, and return immediately without further member operations in that case.
 
- Protected Member Functions inherited from Urho3D::Animatable
virtual AnimatableFindAttributeAnimationTarget (const String &name, String &outName)
 Find target of an attribute animation from object hierarchy by name.
 
void SetObjectAttributeAnimation (const String &name, ValueAnimation *attributeAnimation, WrapMode wrapMode, float speed)
 Set object attribute animation internal.
 
void OnObjectAnimationAdded (ObjectAnimation *objectAnimation)
 Handle object animation added.
 
void OnObjectAnimationRemoved (ObjectAnimation *objectAnimation)
 Handle object animation removed.
 
void UpdateAttributeAnimations (float timeStep)
 Update attribute animations.
 
bool IsAnimatedNetworkAttribute (const AttributeInfo &attrInfo) const
 Is animated network attribute.
 
AttributeAnimationInfoGetAttributeAnimationInfo (const String &name) const
 Return attribute animation info.
 
void HandleAttributeAnimationAdded (StringHash eventType, VariantMap &eventData)
 Handle attribute animation added.
 
void HandleAttributeAnimationRemoved (StringHash eventType, VariantMap &eventData)
 Handle attribute animation removed.
 

Private Member Functions

 URHO3D_OBJECT (CrowdManager, Component)
 
void HandleSceneSubsystemUpdate (StringHash eventType, VariantMap &eventData)
 Handle the scene subsystem update event.
 
void HandleNavMeshChanged (StringHash eventType, VariantMap &eventData)
 Handle navigation mesh changed event. It can be navmesh being rebuilt or being removed from its node.
 
void HandleComponentAdded (StringHash eventType, VariantMap &eventData)
 Handle component added in the scene to check for late addition of the navmesh.
 

Private Attributes

dtCrowd * crowd_
 Internal Detour crowd object.
 
WeakPtr< NavigationMeshnavigationMesh_
 NavigationMesh for which the crowd was created.
 
unsigned navigationMeshId_
 The NavigationMesh component Id for pending crowd creation.
 
unsigned maxAgents_
 The maximum number of agents the crowd can manage.
 
float maxAgentRadius_
 The maximum radius of any agent that will be added to the crowd.
 
unsigned numQueryFilterTypes_
 Number of query filter types configured in the crowd. Limit to DT_CROWD_MAX_QUERY_FILTER_TYPE.
 
PODVector< unsigned > numAreas_
 Number of configured area in each filter type. Limit to DT_MAX_AREAS.
 
unsigned numObstacleAvoidanceTypes_
 Number of obstacle avoidance types configured in the crowd. Limit to DT_CROWD_MAX_OBSTAVOIDANCE_PARAMS.
 

Friends

class CrowdAgent
 

Additional Inherited Members

- Protected Attributes inherited from Urho3D::Component
Nodenode_
 Scene node.
 
unsigned id_
 Unique ID within the scene.
 
bool networkUpdate_
 Network update queued flag.
 
bool enabled_
 Enabled flag.
 
- Protected Attributes inherited from Urho3D::Animatable
bool animationEnabled_
 Animation enabled.
 
SharedPtr< ObjectAnimationobjectAnimation_
 Animation.
 
HashSet< const AttributeInfo * > animatedNetworkAttributes_
 Animated network attribute set.
 
HashMap< String, SharedPtr
< AttributeAnimationInfo > > 
attributeAnimationInfos_
 Attribute animation infos.
 
- Protected Attributes inherited from Urho3D::Serializable
UniquePtr< NetworkStatenetworkState_
 Network attribute state.
 
- Protected Attributes inherited from Urho3D::Object
Contextcontext_
 Execution context.
 

Detailed Description

Crowd manager scene component. Should be added only to the root scene node.


The documentation for this class was generated from the following files:
  • Source/Urho3D/Navigation/CrowdManager.h
  • Source/Urho3D/Navigation/CrowdManager.cpp