Struct MsgM 

pub struct MsgM<'a, T: 'static + Message> { /* private fields */ }

Implementations

impl<'a, T: Message> MsgM<'a, T>

pub fn new(value: &'a mut Messages<T>) -> Self

Methods from Deref<Target = Messages<T>>

pub fn send(&mut self, message: M) -> MessageId<M>

Sends a new message, assigning it a unique MessageId.

The message is added to the current_messages list.

Arguments

• message - The message to be sent.

Returns

A MessageId uniquely identifying the sent message.

pub fn swap(&mut self)

Swaps the current and previous frame message lists.

This should be called at the start of each new frame (update) to transition messages appropriately.

pub fn iter_current(&self) -> MessagesIterator<'_, M>

Returns an iterator over the current frame’s messages.

pub fn iter_previous(&self) -> MessagesIterator<'_, M>

Returns an iterator over the previous frame’s messages.

pub fn len_current(&self) -> usize

Returns the number of messages in the current frame.

pub fn len_previous(&self) -> usize

Returns the number of messages in the previous frame.

pub fn is_empty_current(&self) -> bool

Checks if there are no messages in the current frame.

pub fn is_empty_previous(&self) -> bool

Checks if there are no messages in the previous frame.

Trait Implementations

impl<'a, T: Message> Deref for MsgM<'a, T>

type Target = Messages<T>

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl<'a, T: Message> DerefMut for MsgM<'a, T>

fn deref_mut(&mut self) -> &mut Self::Target

Mutably dereferences the value.

impl<T: 'static + Message> SystemParam for MsgM<'static, T>

type Item = MsgM<'static, T>

fn fetch(world: &mut State) -> Self::Item