Urho3D::PhysicsWorld2D Class Reference

2D physics simulation world component. Should be added only to the root scene node. More...

#include <PhysicsWorld2D.h>

Inheritance diagram for Urho3D::PhysicsWorld2D:

Collaboration diagram for Urho3D::PhysicsWorld2D:

Classes
struct	ContactInfo
	Contact info. More...

Public Member Functions
	PhysicsWorld2D (Context *context)
	Construct.
virtual	~PhysicsWorld2D ()
	Destruct.
virtual void	DrawDebugGeometry (DebugRenderer *debug, bool depthTest)
	Visualize the component as debug geometry.
virtual void	BeginContact (b2Contact *contact)
	Called when two fixtures begin to touch.
virtual void	EndContact (b2Contact *contact)
	Called when two fixtures cease to touch.
virtual void	DrawPolygon (const b2Vec2 *vertices, int32 vertexCount, const b2Color &color)
	Draw a closed polygon provided in CCW order.
virtual void	DrawSolidPolygon (const b2Vec2 *vertices, int32 vertexCount, const b2Color &color)
	Draw a solid closed polygon provided in CCW order.
virtual void	DrawCircle (const b2Vec2 &center, float32 radius, const b2Color &color)
	Draw a circle.
virtual void	DrawSolidCircle (const b2Vec2 &center, float32 radius, const b2Vec2 &axis, const b2Color &color)
	Draw a solid circle.
virtual void	DrawSegment (const b2Vec2 &p1, const b2Vec2 &p2, const b2Color &color)
	Draw a line segment.
virtual void	DrawTransform (const b2Transform &xf)
	Draw a transform. Choose your own length scale.
void	Update (float timeStep)
	Step the simulation forward.
void	DrawDebugGeometry ()
	Add debug geometry to the debug renderer.
void	SetUpdateEnabled (bool enable)
	Enable or disable automatic physics simulation during scene update. Enabled by default.
void	SetDrawShape (bool drawShape)
	Set draw shape.
void	SetDrawJoint (bool drawJoint)
	Set draw joint.
void	SetDrawAabb (bool drawAabb)
	Set draw aabb.
void	SetDrawPair (bool drawPair)
	Set draw pair.
void	SetDrawCenterOfMass (bool drawCenterOfMass)
	Set draw center of mass.
void	SetAllowSleeping (bool enable)
	Set allow sleeping.
void	SetWarmStarting (bool enable)
	Set warm starting.
void	SetContinuousPhysics (bool enable)
	Set continuous physics.
void	SetSubStepping (bool enable)
	Set sub stepping.
void	SetGravity (const Vector2 &gravity)
	Set gravity.
void	SetAutoClearForces (bool enable)
	Set auto clear forces.
void	SetVelocityIterations (int velocityIterations)
	Set velocity iterations.
void	SetPositionIterations (int positionIterations)
	Set position iterations.
void	AddRigidBody (RigidBody2D *rigidBody)
	Add rigid body.
void	RemoveRigidBody (RigidBody2D *rigidBody)
	Remove rigid body.
void	Raycast (PODVector< PhysicsRaycastResult2D > &results, const Vector2 &startPoint, const Vector2 &endPoint, unsigned collisionMask=M_MAX_UNSIGNED)
	Perform a physics world raycast and return all hits.
void	RaycastSingle (PhysicsRaycastResult2D &result, const Vector2 &startPoint, const Vector2 &endPoint, unsigned collisionMask=M_MAX_UNSIGNED)
	Perform a physics world raycast and return the closest hit.
RigidBody2D *	GetRigidBody (const Vector2 &point, unsigned collisionMask=M_MAX_UNSIGNED)
	Return rigid body at point.
RigidBody2D *	GetRigidBody (int screenX, int screenY, unsigned collisionMask=M_MAX_UNSIGNED)
	Return rigid body at screen point.
void	GetRigidBodies (PODVector< RigidBody2D * > &result, const Rect &aabb, unsigned collisionMask=M_MAX_UNSIGNED)
	Return rigid bodies by a box query.
bool	IsUpdateEnabled () const
	Return whether physics world will automatically simulate during scene update.
bool	GetDrawShape () const
	Return draw shape.
bool	GetDrawJoint () const
	Return draw joint.
bool	GetDrawAabb () const
	Return draw aabb.
bool	GetDrawPair () const
	Return draw pair.
bool	GetDrawCenterOfMass () const
	Return draw center of mass.
bool	GetAllowSleeping () const
	Return allow sleeping.
bool	GetWarmStarting () const
	Return warm starting.
bool	GetContinuousPhysics () const
	Return continuous physics.
bool	GetSubStepping () const
	Return sub stepping.
bool	GetAutoClearForces () const
	Return auto clear forces.
const Vector2 &	GetGravity () const
	Return gravity.
int	GetVelocityIterations () const
	Return velocity iterations.
int	GetPositionIterations () const
	Return position iterations.
b2World *	GetWorld ()
	Return the Box2D physics world.
void	SetApplyingTransforms (bool enable)
	Set node dirtying to be disregarded.
bool	IsApplyingTransforms () const
	Return whether node dirtying should be disregarded.
Public Member Functions inherited from Urho3D::Component
	Component (Context *context)
	Construct.
virtual	~Component ()
	Destruct.
virtual void	OnSetEnabled ()
	Handle enabled/disabled state change.
virtual bool	Save (Serializer &dest) const
	Save as binary data. Return true if successful.
virtual bool	SaveXML (XMLElement &dest) const
	Save as XML data. Return true if successful.
virtual void	MarkNetworkUpdate ()
	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.
Node *	GetNode () const
	Return scene node.
Scene *	GetScene () 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.)
Component *	GetComponent (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 ()
	Destruct.
virtual bool	LoadXML (const XMLElement &source, bool setInstanceDefault=false)
	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.
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.
ObjectAnimation *	GetObjectAnimation () const
	Return object animation.
ValueAnimation *	GetAttributeAnimation (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 ()
	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 void	ApplyAttributes ()
	Apply attribute changes that can not be applied immediately. Called after scene load or a network update.
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.
NetworkState *	GetNetworkState () const
	Return the network attribute state, if allocated.
Public Member Functions inherited from Urho3D::Object
	Object (Context *context)
	Construct.
virtual	~Object ()
	Destruct. Clean up self from event sender & receiver structures.
virtual StringHash	GetType () const =0
	Return type hash.
virtual const String &	GetTypeName () const =0
	Return type name.
virtual const TypeInfo *	GetTypeInfo () 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.
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	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. More...
VariantMap &	GetEventDataMap () const
	Return a preallocated map for event data. Used for optimization to avoid constant re-allocation of event data maps.
Context *	GetContext () const
	Return execution context.
Object *	GetSubsystem (StringHash type) const
	Return subsystem by type.
Object *	GetEventSender () const
	Return active event sender. Null outside event handling.
EventHandler *	GetEventHandler () 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 String &	GetCategory () const
	Return object category. Categories are (optionally) registered along with the object factory. Return an empty string if the object category is not registered.
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.
RefCount *	RefCountPtr ()
	Return pointer to the reference count structure.

Static Public Member Functions
static void	RegisterObject (Context *context)
	Register object factory.

Protected Member Functions
virtual void	OnSceneSet (Scene *scene)
	Handle scene being assigned.
Protected Member Functions inherited from Urho3D::Component
virtual void	OnAttributeAnimationAdded ()
	Handle attribute animation added.
virtual void	OnAttributeAnimationRemoved ()
	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.
Protected Member Functions inherited from Urho3D::Animatable
virtual Animatable *	FindAttributeAnimationTarget (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.
AttributeAnimationInfo *	GetAttributeAnimationInfo (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 (PhysicsWorld2D, Component)
void	HandleSceneSubsystemUpdate (StringHash eventType, VariantMap &eventData)
	Handle the scene subsystem update event, step simulation here.
void	SendBeginContactEvents ()
	Send begin contact events.
void	SendEndContactEvents ()
	Send end contact events.

Private Attributes
b2World *	world_
	Box2D physics world.
Vector2	gravity_
	Gravity.
int	velocityIterations_
	Velocity iterations.
int	positionIterations_
	Position iterations.
WeakPtr< Scene >	scene_
	Extra weak pointer to scene to allow for cleanup in case the world is destroyed before other components.
DebugRenderer *	debugRenderer_
	Debug renderer.
bool	debugDepthTest_
	Debug draw depth test mode.
bool	updateEnabled_
	Automatic simulation update enabled flag.
bool	physicsStepping_
	Whether is currently stepping the world. Used internally.
bool	applyingTransforms_
	Applying transforms.
Vector< WeakPtr< RigidBody2D > >	rigidBodies_
	Rigid bodies.
Vector< ContactInfo >	beginContactInfos_
	Begin contact infos.
Vector< ContactInfo >	endContactInfos_
	End contact infos.

Additional Inherited Members
Protected Attributes inherited from Urho3D::Component
Node *	node_
	Scene node.
unsigned	id_
	Unique ID within the scene.
bool	networkUpdate_
	Network update queued flag.
bool	enabled_
	Enabled flag.

Detailed Description

2D physics simulation world component. Should be added only to the root scene node.

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

• /home/travis/build/urho3d/Urho3D/Source/Urho3D/Urho2D/PhysicsWorld2D.h
• /home/travis/build/urho3d/Urho3D/Source/Urho3D/Urho2D/PhysicsWorld2D.cpp