Class b2BodyDef

public active: boolean

Does this body start out active?

public allowSleep: boolean

Set this flag to false if this body should never fall asleep. Note that this increases CPU usage.

public angle: number

The world angle of the body in radians.

public angularDamping: number

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.

public angularVelocity: number

The angular velocity of the body.

public awake: boolean

Is this body initially awake or sleeping?

public bullet: boolean

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.

public fixedRotation: boolean

Should this body be prevented from rotating? Useful for characters.

public inertiaScale: number

Scales the inertia tensor.

warning

Experimental

public linearDamping: number

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.

public linearVelocity: b2Vec2

The linear velocity of the body's origin in world co-ordinates.

public position: b2Vec2

The world position of the body. Avoid creating bodies at the origin since this can lead to many overlapping shapes.

public type: number

The body type: static, kinematic, or dynamic. A member of the b2BodyType class .

note

If a dynamic body would have zero mass, the mass is set to one.

public userData: any

Use this to store application specific body data.