b2BodyDef Struct Reference
A body definition holds all the data needed to construct a rigid body. More...
Public Member Functions | |
| b2BodyDef () | |
| This constructor sets the body definition default values. | |
Public Attributes | |
| b2MassData | massData |
| You can use this to initialized the mass properties of the body. | |
| void * | userData |
| Use this to store application specific body data. | |
| b2Vec2 | position |
| The world position of the body. | |
| float32 | angle |
| The world angle of the body in radians. | |
| float32 | linearDamping |
| Linear damping is use to reduce the linear velocity. | |
| float32 | angularDamping |
| Angular damping is use to reduce the angular velocity. | |
| bool | allowSleep |
| Set this flag to false if this body should never fall asleep. | |
| bool | isSleeping |
| Is this body initially sleeping? | |
| bool | fixedRotation |
| Should this body be prevented from rotating? Useful for characters. | |
| bool | isBullet |
| Is this a fast moving body that should be prevented from tunneling through other moving bodies? Note that all bodies are prevented from tunneling through static bodies. | |
Detailed Description
A body definition holds all the data needed to construct a rigid body.You can safely re-use body definitions.
Member Data Documentation
You can use this to initialized the mass properties of the body.
If you prefer, you can set the mass properties after the shapes have been added using b2Body::SetMassFromShapes.
The world position of the body.
Avoid creating bodies at the origin since this can lead to many overlapping shapes.
| float32 b2BodyDef::linearDamping |
Linear damping is use to reduce the linear velocity.
The damping parameter can be larger than 1.0f but the damping effect becomes sensitive to the time step when the damping parameter is large.
| float32 b2BodyDef::angularDamping |
Angular damping is use to reduce the angular velocity.
The damping parameter can be larger than 1.0f but the damping effect becomes sensitive to the time step when the damping parameter is large.
Set this flag to false if this body should never fall asleep.
Note that this increases CPU usage.
| bool b2BodyDef::isBullet |
Is this a fast moving body that should be prevented from tunneling through other moving bodies? Note that all bodies are prevented from tunneling through static bodies.
- Warning:
- You should use this flag sparingly since it increases processing time.
The documentation for this struct was generated from the following file:
- b2Body.h
Generated on Sun Apr 13 15:21:27 2008 for Box2D by
1.5.4