C# Class Project290.Physics.Dynamics.World

The world class manages all physics entities, dynamic simulation, and asynchronous queries.

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Public Properties

Property	Type	Description
BodyAdded	BodyDelegate
BodyRemoved	BodyDelegate
Enabled	bool
FixtureAdded	FixtureDelegate
FixtureRemoved	FixtureDelegate
Gravity	Vector2
Island	Island
JointAdded	JointDelegate
JointRemoved	JointDelegate

Public Methods

Method	Description
AddBody ( Body body ) : void	Create a rigid body.
AddBreakableBody ( BreakableBody breakableBody ) : void
AddController ( Controller controller ) : void
AddJoint ( Joint joint ) : void	Create a joint to constrain bodies together. This may cause the connected bodies to cease colliding.
ClearForces ( ) : void	Call this after you are done with time steps to clear the forces. You normally call this after each call to Step, unless you are performing sub-steps. By default, forces will be automatically cleared, so you don't need to call this function.
ProcessChanges ( ) : void	All adds and removes are cached by the World duing a World step. To process the changes before the world updates again, call this method.
QueryAABB ( bool>.Func callback, AABB &aabb ) : void	Query the world for all fixtures that potentially overlap the provided AABB.
RayCast ( RayCastCallback callback, Vector2 point1, Vector2 point2 ) : void	Ray-cast the world for all fixtures in the path of the ray. Your callback controls whether you get the closest point, any point, or n-points. The ray-cast ignores shapes that contain the starting point.
RemoveBody ( Body body ) : void	Destroy a rigid body. Warning: This automatically deletes all associated shapes and joints.
RemoveBreakableBody ( BreakableBody breakableBody ) : void
RemoveController ( Controller controller ) : void
RemoveJoint ( Joint joint ) : void	Destroy a joint. This may cause the connected bodies to begin colliding.
Step ( float dt ) : void	Take a time step. This performs collision detection, integration, and consraint solution.
TestPoint ( Vector2 point ) : Fixture
TestPointAll ( Vector2 point ) : List	Returns a list of fixtures that are at the specified point.
World ( Vector2 gravity ) : System	Initializes a new instance of the World class.

Private Methods

Method	Description
ProcessAddedBodies ( ) : void
ProcessAddedJoints ( ) : void
ProcessRemovedBodies ( ) : void
ProcessRemovedJoints ( ) : void
QueryAABBCallbackWrapper ( int proxyId ) : bool
RayCastCallbackWrapper ( RayCastInput &input, int proxyId ) : float
Solve ( TimeStep &step ) : void
SolveTOI ( TimeStep &step ) : void	Find TOI contacts and solve them.

Method Details

AddBody() public method

Create a rigid body.

public AddBody ( Body body ) : void
body	Body
return	void

AddBreakableBody() public method

public AddBreakableBody ( BreakableBody breakableBody ) : void
breakableBody	BreakableBody
return	void

AddController() public method

public AddController ( Controller controller ) : void
controller	Project290.Physics.Controllers.Controller
return	void

AddJoint() public method

Create a joint to constrain bodies together. This may cause the connected bodies to cease colliding.

public AddJoint ( Joint joint ) : void
joint	Project290.Physics.Dynamics.Joints.Joint	The joint.
return	void

ClearForces() public method

Call this after you are done with time steps to clear the forces. You normally call this after each call to Step, unless you are performing sub-steps. By default, forces will be automatically cleared, so you don't need to call this function.

public ClearForces ( ) : void
return	void

ProcessChanges() public method

All adds and removes are cached by the World duing a World step. To process the changes before the world updates again, call this method.

public ProcessChanges ( ) : void
return	void

QueryAABB() public method

Query the world for all fixtures that potentially overlap the provided AABB.

public QueryAABB ( bool>.Func callback, AABB &aabb ) : void
callback	bool>.Func	A user implemented callback class.
aabb	Project290.Physics.Collision.AABB	The aabb query box.
return	void

RayCast() public method

Ray-cast the world for all fixtures in the path of the ray. Your callback controls whether you get the closest point, any point, or n-points. The ray-cast ignores shapes that contain the starting point.

public RayCast ( RayCastCallback callback, Vector2 point1, Vector2 point2 ) : void
callback	RayCastCallback	A user implemented callback class.
point1	Vector2	The ray starting point.
point2	Vector2	The ray ending point.
return	void

RemoveBody() public method

Destroy a rigid body. Warning: This automatically deletes all associated shapes and joints.

public RemoveBody ( Body body ) : void
body	Body	The body.
return	void

RemoveBreakableBody() public method

public RemoveBreakableBody ( BreakableBody breakableBody ) : void
breakableBody	BreakableBody
return	void

RemoveController() public method

public RemoveController ( Controller controller ) : void
controller	Project290.Physics.Controllers.Controller
return	void

RemoveJoint() public method

Destroy a joint. This may cause the connected bodies to begin colliding.

public RemoveJoint ( Joint joint ) : void
joint	Project290.Physics.Dynamics.Joints.Joint	The joint.
return	void

Step() public method

Take a time step. This performs collision detection, integration, and consraint solution.

public Step ( float dt ) : void
dt	float	The amount of time to simulate, this should not vary.
return	void

TestPoint() public method

public TestPoint ( Vector2 point ) : Fixture
point	Vector2
return	Fixture

TestPointAll() public method

Returns a list of fixtures that are at the specified point.

public TestPointAll ( Vector2 point ) : List
point	Vector2	The point.
return	List

World() public method

Initializes a new instance of the World class.

public World ( Vector2 gravity ) : System
gravity	Vector2	The gravity.
return	System

Property Details

BodyAdded public_oe property

Fires whenever a body has been added

public BodyDelegate BodyAdded
return	BodyDelegate

BodyRemoved public_oe property

Fires whenever a body has been removed

public BodyDelegate BodyRemoved
return	BodyDelegate

Enabled public_oe property

If false, the whole simulation stops. It still processes added and removed geometries.

public bool Enabled
return	bool

FixtureAdded public_oe property

Fires whenever a fixture has been added

public FixtureDelegate FixtureAdded
return	FixtureDelegate

FixtureRemoved public_oe property

Fires whenever a fixture has been removed

public FixtureDelegate FixtureRemoved
return	FixtureDelegate

Gravity public_oe property

Change the global gravity vector.

public Vector2 Gravity
return	Vector2

Island public_oe property

public Island,Project290.Physics.Dynamics Island
return	Island

JointAdded public_oe property

Fires whenever a joint has been added

public JointDelegate JointAdded
return	JointDelegate

JointRemoved public_oe property

Fires whenever a joint has been removed

public JointDelegate JointRemoved
return	JointDelegate