Struct TagTracker 

pub struct TagTracker { /* private fields */ }

Tracks which tags are present on an entity.

Implementations

impl TagTracker

pub unsafe fn tag<T>(&mut self)

where T: Tag,

Set this Tag as present.

Safety

The caller must ensure that:

• The tag is registered.
• No other TagTrackers of the same entity are being accessed.

pub unsafe fn untag<T>(&mut self)

where T: Tag,

Set this Tag as not present.

Safety

The caller must ensure that:

• The tag is registered.
• No other TagTrackers of the same entity are being accessed.

pub unsafe fn toggle_unchecked<T>(&mut self)

where T: Tag,

Toggle this Tag. (If it is present, remove it; if it is not present, add it.)

Safety

The caller must ensure that:

• The tag is registered.
• No other TagTrackers of the same entity are being accessed.

pub fn is_tag_registered<T>(&self) -> bool

where T: Tag,

Check if this Tag is registered.

pub unsafe fn is_tagged<T>(&self) -> bool

where T: Tag,

Check if this Tag is present in this tracker.

Safety

The caller must ensure that:

• No other TagTrackers of the same entity are being mutated.

pub unsafe fn is_tagged_unchecked<T>(&self) -> bool

where T: Tag,

Check if this Tag is present in this tracker, without checking whether it exists.

pub unsafe fn untag_all(&mut self)

Remove all tags from this tracker.

Safety

The caller must ensure that:

• No other TagTrackers of the same entity are being accessed.

Trait Implementations

impl Clone for TagTracker

fn clone(&self) -> TagTracker

Returns a duplicate of the value.

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

Performs copy-assignment from source.