Struct GpuContactCache 

pub struct GpuContactCache {
    pub entries: Vec<ContactCacheEntry>,
    pub max_age_frames: u32,
}

Persistent contact cache for GPU broadphase/narrowphase warmstarting.

Maps body-pair keys to cached impulse data from the previous frame. Entries are aged out after max_age_frames frames without a refresh.

Fields

entries: Vec<ContactCacheEntry>

Stored entries.

max_age_frames: u32

Maximum age before an entry is evicted.

Implementations

impl GpuContactCache

pub fn new(max_age_frames: u32) -> Self

Create a new contact cache with the given maximum age.

pub fn find(&self, a: u32, b: u32) -> Option<&ContactCacheEntry>

Look up a cached entry for the given pair key.

pub fn find_mut(&mut self, a: u32, b: u32) -> Option<&mut ContactCacheEntry>

Look up a cached entry mutably.

pub fn insert(&mut self, pair: &CollisionPair, contact: &ContactResult)

Insert or refresh a contact cache entry.

pub fn advance_frame(&mut self)

Advance the cache by one frame: age entries and evict stale ones.

pub fn len(&self) -> usize

Number of entries currently in the cache.

pub fn is_empty(&self) -> bool

Returns true if the cache is empty.

pub fn clear(&mut self)

Clear all entries.

Trait Implementations

impl Debug for GpuContactCache

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

Formats the value using the given formatter.

impl Default for GpuContactCache

fn default() -> GpuContactCache

Returns the “default value” for a type.