Skip to main content Module types Copy item path Source pub use crate::dynamic_tree::DEFAULT_CATEGORY_BITS ;pub use crate::dynamic_tree::DEFAULT_MASK_BITS ;BodyDef A body definition holds all the data needed to construct a rigid body. Must
be initialized using default_body_def Capacity Optional world capacities that can be used to avoid run-time allocations.
(b2Capacity) ChainDef Used to create a chain of line segments. Must be initialized using
default_chain_def DistanceJointDef Distance joint definition.
Connects a point on body A with a point on body B by a segment.
Useful for ropes and springs. (b2DistanceJointDef) Filter Collision filtering data for shapes. (b2Filter) FilterJointDef A filter joint is used to disable collision between two specific bodies.
(b2FilterJointDef) JointDef Base joint definition used by all joint types.
The local frames are measured from the body’s origin rather than the center
of mass because: MotionLocks Motion locks to restrict the body movement. (b2MotionLocks) MotorJointDef A motor joint is used to control the relative velocity and or transform
between two bodies. With a velocity of zero this acts like top-down
friction. (b2MotorJointDef) PrismaticJointDef Prismatic joint definition.
Body B may slide along the x-axis in local frame A. Body B cannot rotate
relative to body A. The joint translation is zero when the local frame
origins coincide in world space. (b2PrismaticJointDef) QueryFilter The query filter is used to filter collisions between queries and shapes.
(b2QueryFilter) RayResult Result from b2World_RayCastClosest. (b2RayResult) RevoluteJointDef Revolute joint definition.
A point on body B is fixed to a point on body A. Allows relative rotation.
(b2RevoluteJointDef) ShapeDef Used to create a shape. Must be initialized using default_shape_def SurfaceMaterial Surface materials allow chain shapes to have per segment surface properties.
(b2SurfaceMaterial) WeldJointDef Weld joint definition.
Connects two bodies together rigidly. This constraint provides springs to
mimic soft-body simulation.
Note: The approximate solver in Box2D cannot hold many bodies together
rigidly. (b2WeldJointDef) WheelJointDef Wheel joint definition.
Body B is a wheel that may rotate freely and slide along the local x-axis
in frame A. The joint translation is zero when the local frame origins
coincide in world space. (b2WheelJointDef) WorldDef World definition used to create a simulation world. Must be initialized
using default_world_def BodyType The body simulation type. Each body is one of these three types.
(b2BodyType) BODY_TYPE_COUNT Number of body types. (b2_bodyTypeCount) default_body_def Initialize a body definition with the default values. (b2DefaultBodyDef) default_chain_def Initialize a chain definition with the default values. (b2DefaultChainDef) default_distance_joint_def (b2DefaultDistanceJointDef) default_filter Initialize a filter with the default values. (b2DefaultFilter) default_filter_joint_def (b2DefaultFilterJointDef) default_motor_joint_def (b2DefaultMotorJointDef) default_prismatic_joint_def (b2DefaultPrismaticJointDef) default_query_filter Initialize a query filter with the default values. (b2DefaultQueryFilter) default_revolute_joint_def (b2DefaultRevoluteJointDef) default_shape_def Initialize a shape definition with the default values. (b2DefaultShapeDef) default_surface_material Initialize a surface material with the default values.
(b2DefaultSurfaceMaterial) default_weld_joint_def (b2DefaultWeldJointDef) default_wheel_joint_def (b2DefaultWheelJointDef) default_world_def Initialize a world definition with the default values. (b2DefaultWorldDef) FrictionCallback Optional friction mixing callback. The default uses sqrt(frictionA * frictionB).
(b2FrictionCallback) RestitutionCallback Optional restitution mixing callback. The default uses
max(restitutionA, restitutionB). (b2RestitutionCallback)