Struct ecs_observer_t 

#[repr(C)]
pub struct ecs_observer_t {

    pub hdr: ecs_header_t,
    pub filter: ecs_filter_t,
    pub events: [ecs_entity_t; 8],
    pub event_count: i32,
    pub callback: ecs_iter_action_t,
    pub run: ecs_run_action_t,
    pub ctx: *mut c_void,
    pub binding_ctx: *mut c_void,
    pub ctx_free: ecs_ctx_free_t,
    pub binding_ctx_free: ecs_ctx_free_t,
    pub observable: *mut ecs_observable_t,
    pub last_event_id: *mut i32,
    pub last_event_id_storage: i32,
    pub register_id: ecs_id_t,
    pub term_index: i32,
    pub is_monitor: bool,
    pub is_multi: bool,
    pub dtor: ecs_poly_dtor_t,
}

An observer reacts to events matching a filter

Fields

hdr: ecs_header_t

filter: ecs_filter_t

< Query for observer

events: [ecs_entity_t; 8]

Observer events

event_count: i32

callback: ecs_iter_action_t

< See ecs_observer_desc_t::callback

run: ecs_run_action_t

< See ecs_observer_desc_t::run

ctx: *mut c_void

< Callback context

binding_ctx: *mut c_void

< Binding context (for language bindings)

ctx_free: ecs_ctx_free_t

< Callback to free ctx

binding_ctx_free: ecs_ctx_free_t

< Callback to free binding_ctx

observable: *mut ecs_observable_t

< Observable for observer

last_event_id: *mut i32

< Last handled event id

last_event_id_storage: i32

register_id: ecs_id_t

< Id observer is registered with (single term observers only)

term_index: i32

< Index of the term in parent observer (single term observers only)

is_monitor: bool

< If true, the observer only triggers when the filter did not match with the entity before the event happened.

is_multi: bool

< If true, the observer triggers on more than one term

dtor: ecs_poly_dtor_t

Mixins

Trait Implementations

impl Clone for ecs_observer_t

fn clone(&self) -> ecs_observer_t

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ecs_observer_t

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

Formats the value using the given formatter.

impl Copy for ecs_observer_t