Used with ecs_observer_init().
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#include <flecs.h>
Used with ecs_observer_init().
Definition at line 1104 of file flecs.h.
◆ _canary
int32_t ecs_observer_desc_t::_canary |
◆ binding_ctx
void* ecs_observer_desc_t::binding_ctx |
Context to be used for language bindings.
Definition at line 1136 of file flecs.h.
◆ binding_ctx_free
Callback to free binding_ctx.
Definition at line 1142 of file flecs.h.
◆ callback
Callback to invoke on an event, invoked when the observer matches.
Definition at line 1122 of file flecs.h.
◆ ctx
void* ecs_observer_desc_t::ctx |
User context to pass to callback.
Definition at line 1133 of file flecs.h.
◆ ctx_free
Callback to free ctx.
Definition at line 1139 of file flecs.h.
◆ entity
Existing entity to associate with observer (optional)
Definition at line 1108 of file flecs.h.
◆ events
Events to observe (OnAdd, OnRemove, OnSet, UnSet)
Definition at line 1114 of file flecs.h.
◆ filter
Filter for observer.
Definition at line 1111 of file flecs.h.
◆ last_event_id
int32_t* ecs_observer_desc_t::last_event_id |
Optional shared last event id for multiple observers.
Ensures only one of the observers with the shared id gets triggered for an event
Definition at line 1149 of file flecs.h.
◆ observable
Observable with which to register the observer.
Definition at line 1145 of file flecs.h.
◆ run
Callback invoked on an event.
When left to NULL the default runner is used which matches the event with the observer's filter, and calls 'callback' when it matches. A reason to override the run function is to improve performance, if there are more efficient way to test whether an event matches the observer than the general purpose query matcher.
Definition at line 1130 of file flecs.h.
◆ term_index
int32_t ecs_observer_desc_t::term_index |
Used for internal purposes.
Definition at line 1152 of file flecs.h.
◆ yield_existing
bool ecs_observer_desc_t::yield_existing |
When observer is created, generate events from existing data.
For example, EcsOnAdd Position would match all existing instances of Position. This is only supported for events that are iterable (see EcsIterable)
Definition at line 1119 of file flecs.h.
The documentation for this struct was generated from the following file: