cubos::core::ecs::Observers class
#include <core/ecs/observer/observers.hpp>

Stores and manages all of the observers associated with a world.

Public functions

auto notifyAdd(CommandBuffer& commandBuffer, Entity entity, ColumnId column) -> bool: Notifies that the given entity has a new column.
auto notifyRemove(CommandBuffer& commandBuffer, Entity entity, ColumnId column) -> bool: Notifies that the given entity has lost a column.
auto notifyDestroy(CommandBuffer& commandBuffer, Entity entity, ColumnId column) -> bool: Notifies was destroyed.
auto hookOnAdd(ColumnId column, System<void> observer) -> ObserverId: Hooks an observer to the addition of a column.
auto hookOnRemove(ColumnId column, System<void> observer) -> ObserverId: Hooks an observer to the removal of a column.
auto hookOnDestroy(ColumnId column, System<void> observer) -> ObserverId: Hooks an observer to the entity destruction.
void unhook(ObserverId id): Unhooks an observer.

Notifies that the given entity has a new column.

Parameters
commandBuffer	Command buffer to record the any commands emitted by the observer.
entity	Entity.
column	Column.
Returns	Whether an observer was triggered.

Notifies that the given entity has lost a column.

Parameters
commandBuffer	Command buffer to record the any commands emitted by the observer.
entity	Entity.
column	Column.
Returns	Whether an observer was triggered.

Notifies was destroyed.

Parameters
commandBuffer	Command buffer to record the any commands emitted by the observer.
entity	Entity.
column	Column.
Returns	Whether an observer was triggered.

Hooks an observer to the addition of a column.

Hooks an observer to the removal of a column.

Hooks an observer to the entity destruction.

Unhooks an observer.

Parameters
id	Observer identifier.