Struct b2Filter 

#[repr(C)]
pub struct b2Filter {
    pub categoryBits: u64,
    pub maskBits: u64,
    pub groupIndex: c_int,
}

This is used to filter collision on shapes. It affects shape-vs-shape collision and shape-versus-query collision (such as b2World_CastRay). @ingroup shape

Fields

categoryBits: u64

The collision category bits. Normally you would just set one bit. The category bits should represent your application object types. For example: @code{.cpp} enum MyCategories { Static = 0x00000001, Dynamic = 0x00000002, Debris = 0x00000004, Player = 0x00000008, // etc }; @endcode

maskBits: u64

The collision mask bits. This states the categories that this shape would accept for collision. For example, you may want your player to only collide with static objects and other players. @code{.c} maskBits = Static | Player; @endcode

groupIndex: c_int

Collision groups allow a certain group of objects to never collide (negative) or always collide (positive). A group index of zero has no effect. Non-zero group filtering always wins against the mask bits. For example, you may want ragdolls to collide with other ragdolls but you don’t want ragdoll self-collision. In this case you would give each ragdoll a unique negative group index and apply that group index to all shapes on the ragdoll.

Trait Implementations

impl Clone for b2Filter

fn clone(&self) -> b2Filter

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for b2Filter

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Copy for b2Filter