Module shape 

Structs

ChainShape

Internal chain shape. (b2ChainShape)

Shape

Internal shape. (b2Shape)

ShapeExtent

(b2ShapeExtent)

Functions

chain_get_segment_count

Get the number of segments on this chain. (b2Chain_GetSegmentCount)

chain_get_segments

Get the segment shape ids for a chain, up to capacity. (b2Chain_GetSegments — returns a Vec instead of filling a caller array)

chain_get_surface_material

Get a chain surface material by segment index. (b2Chain_GetSurfaceMaterial)

chain_get_surface_material_count

Get the number of chain surface materials: 1 (shared) or the segment count. (b2Chain_GetSurfaceMaterialCount)

chain_is_valid

Chain id validity. (b2Chain_IsValid — the world-registry check collapses to the index/generation check in the registry-less port)

chain_set_surface_material

Set a chain surface material, propagating it to the affected segment shape(s). (b2Chain_SetSurfaceMaterial)

collide_mover

(b2CollideMover)

compute_shape_aabb

(b2ComputeShapeAABB)

compute_shape_extent

(b2ComputeShapeExtent)

compute_shape_mass

(b2ComputeShapeMass)

create_capsule_shape

(b2CreateCapsuleShape)

create_chain

Create a chain shape: a sequence of chain segments attached to a body. The def must have at least 4 points. (b2CreateChain)

create_chain_segment_shape

(b2CreateChainSegmentShape)

create_circle_shape

(b2CreateCircleShape)

create_polygon_shape

(b2CreatePolygonShape)

create_segment_shape

(b2CreateSegmentShape)

create_shape_proxy

(b2CreateShapeProxy)

destroy_chain

Destroy a chain shape and all its segments. (b2DestroyChain + b2FreeChainData)

destroy_shape

Destroy a shape by id, optionally updating the body mass. (b2DestroyShape)

destroy_shape_proxy

(b2DestroyShapeProxy)

get_chain_index

Validate a ChainId and return the raw chain index. (static b2GetChainShape — C returns a pointer; Rust returns the index into world.chain_shapes)

get_shape_centroid

(b2GetShapeCentroid)

get_shape_index

Validate a ShapeId and return the raw shape index. (b2GetShape — C returns a pointer; Rust returns the index into world.shapes)

get_shape_perimeter

(b2GetShapePerimeter)

get_shape_projected_perimeter

This projects the shape perimeter onto an infinite line. (b2GetShapeProjectedPerimeter)

make_shape_distance_proxy

(b2MakeShapeDistanceProxy)

ray_cast_shape

(b2RayCastShape)

shape_apply_wind

Apply wind to a shape, applying drag and lift forces to the owning body. (b2Shape_ApplyWind)

shape_are_contact_events_enabled

Returns true if contact events are enabled. (b2Shape_AreContactEventsEnabled)

shape_are_hit_events_enabled

Returns true if hit events are enabled. (b2Shape_AreHitEventsEnabled)

shape_are_pre_solve_events_enabled

Returns true if pre-solve events are enabled. (b2Shape_ArePreSolveEventsEnabled)

shape_are_sensor_events_enabled

Returns true if sensor events are enabled. (b2Shape_AreSensorEventsEnabled)

shape_cast_shape

(b2ShapeCastShape)

shape_compute_mass_data

Compute the mass data for a shape. (b2Shape_ComputeMassData)

shape_enable_contact_events

Enable contact events for this shape. (b2Shape_EnableContactEvents)

shape_enable_hit_events

Enable contact hit events for this shape. (b2Shape_EnableHitEvents)

shape_enable_pre_solve_events

Enable pre-solve contact events for this shape. Only applies to dynamic bodies. These are expensive and must be carefully handled due to multithreading. (b2Shape_EnablePreSolveEvents)

shape_enable_sensor_events

Enable sensor events for this shape. (b2Shape_EnableSensorEvents)

shape_get_aabb

Get the current world AABB. This is the axis-aligned bounding box in world coordinates. (b2Shape_GetAABB)

shape_get_body

Get the id of the body that a shape is attached to. (b2Shape_GetBody)

shape_get_capsule

Get a copy of the shape’s capsule. Asserts the type is correct. (b2Shape_GetCapsule)

shape_get_chain_segment

Get a copy of the shape’s chain segment. These come from chain shapes. Asserts the type is correct. (b2Shape_GetChainSegment)

shape_get_circle

Get a copy of the shape’s circle. Asserts the type is correct. (b2Shape_GetCircle)

shape_get_closest_point

Get the closest point on a shape to a target point. Target and result are in world space. (b2Shape_GetClosestPoint)

shape_get_contact_capacity

Get the maximum capacity required for retrieving all the touching contacts on a shape. (b2Shape_GetContactCapacity)

shape_get_contact_data

Get the touching contact data for a shape. (b2Shape_GetContactData — returns a Vec instead of filling a caller array)

shape_get_density

Get the density of a shape, usually in kg/m^2. (b2Shape_GetDensity)

shape_get_filter

Get the shape filter. (b2Shape_GetFilter)

shape_get_friction

Get the friction of a shape. (b2Shape_GetFriction)

shape_get_parent_chain

Get the parent chain id if the shape type is a chain segment, otherwise returns the null chain id. (b2Shape_GetParentChain)

shape_get_polygon

Get a copy of the shape’s convex polygon. Asserts the type is correct. (b2Shape_GetPolygon)

shape_get_restitution

Get the shape restitution. (b2Shape_GetRestitution)

shape_get_segment

Get a copy of the shape’s line segment. Asserts the type is correct. (b2Shape_GetSegment)

shape_get_sensor_capacity

Get the maximum capacity required for retrieving all the overlapped shapes on a sensor shape. Returns 0 if the shape is not a sensor. (b2Shape_GetSensorCapacity)

shape_get_sensor_data

Get the overlapped shapes for a sensor shape. Overlaps may contain destroyed shapes, so use shape_is_valid to confirm each overlap. (b2Shape_GetSensorData — returns a Vec instead of filling a caller array)

shape_get_surface_material

Get the shape’s surface material. (b2Shape_GetSurfaceMaterial)

shape_get_type

Get the type of a shape. (b2Shape_GetType)

shape_get_user_data

Get the user data for a shape. (b2Shape_GetUserData)

shape_get_user_material

Get the shape’s user material identifier. (b2Shape_GetUserMaterial)

shape_is_sensor

Returns true if the shape is a sensor. (b2Shape_IsSensor)

shape_is_valid

Shape id validity. (b2Shape_IsValid — the world-registry check collapses to the index/generation check in the registry-less port)

shape_ray_cast

Ray cast a shape directly. (b2Shape_RayCast)

shape_set_capsule

Allows you to change a shape to be a capsule or update the current capsule. (b2Shape_SetCapsule)

shape_set_chain_segment

Allows you to change a shape to be a stand-alone chain segment or update the current one. Cannot be used on a segment owned by a chain shape. (b2Shape_SetChainSegment)

shape_set_circle

Allows you to change a shape to be a circle or update the current circle. (b2Shape_SetCircle)

shape_set_density

Set the mass density of a shape, usually in kg/m^2. (b2Shape_SetDensity)

shape_set_filter

Set the current filter. This is almost as expensive as recreating the shape. Sensor overlaps are not updated until the next time step. (b2Shape_SetFilter)

shape_set_friction

Set the friction on a shape. (b2Shape_SetFriction)

shape_set_polygon

Allows you to change a shape to be a polygon or update the current polygon. (b2Shape_SetPolygon)

shape_set_restitution

Set the shape restitution. (b2Shape_SetRestitution)

shape_set_segment

Allows you to change a shape to be a segment or update the current segment. (b2Shape_SetSegment)

shape_set_surface_material

Set the shape’s surface material. (b2Shape_SetSurfaceMaterial)

shape_set_user_data

Set the user data for a shape. (b2Shape_SetUserData)

shape_set_user_material

Set the shape’s user material identifier. (b2Shape_SetUserMaterial)

shape_test_point

Test a point for overlap with a shape. (b2Shape_TestPoint)

should_query_collide

(static inline b2ShouldQueryCollide)

should_shapes_collide

(static inline b2ShouldShapesCollide)