Struct Contact 

pub struct Contact {

    pub set_index: i32,
    pub color_index: i32,
    pub local_index: i32,
    pub edges: [ContactEdge; 2],
    pub shape_id_a: i32,
    pub shape_id_b: i32,
    pub child_index: i32,
    pub island_id: i32,
    pub island_index: i32,
    pub contact_id: i32,
    pub body_sim_index_a: i32,
    pub body_sim_index_b: i32,
    pub flags: u32,
    pub manifolds: Vec<Manifold>,
    pub cached_rotation_a: Quat,
    pub cached_rotation_b: Quat,
    pub cached_relative_pose: Transform,
    pub friction: f32,
    pub restitution: f32,
    pub rolling_resistance: f32,
    pub tangent_velocity: Vec3,
    pub geometry: ContactGeometry,
    pub generation: u32,
}

Persistent interaction between two shapes. (b3Contact)

Fields

set_index: i32

Index of simulation set stored in World. NULL_INDEX when slot is free.

color_index: i32

Index into the constraint graph color array. NULL_INDEX for non-touching or sleeping contacts, and when the slot is free.

local_index: i32

Contact index within set or graph color. NULL_INDEX when slot is free.

edges: [ContactEdge; 2]

shape_id_a: i32

shape_id_b: i32

child_index: i32

island_id: i32

A contact only belongs to an island if touching, otherwise NULL_INDEX.

island_index: i32

Index into the island’s contacts array for O(1) swap-removal. NULL_INDEX when not in an island.

contact_id: i32

Back index into World::contacts

body_sim_index_a: i32

Transient and cached for performance. NULL_INDEX for static bodies.

body_sim_index_b: i32

flags: u32

contact_flags bits

manifolds: Vec<Manifold>

cached_rotation_a: Quat

Cache for contact recycling.

cached_rotation_b: Quat

cached_relative_pose: Transform

friction: f32

Mixed friction and restitution

restitution: f32

rolling_resistance: f32

tangent_velocity: Vec3

geometry: ContactGeometry

Usage determined by SIM_MESH_CONTACT in flags

generation: u32

Monotonically advanced when a contact is allocated in this slot. Used to check for invalid ContactId.

Implementations

impl Contact

pub fn manifold_count(&self) -> i32

Manifold count. (C: manifoldCount)

Trait Implementations

impl Clone for Contact

fn clone(&self) -> Contact

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Contact

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

Formats the value using the given formatter.

impl Default for Contact

fn default() -> Self

Returns the “default value” for a type.