builder.hpp

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/**
 * @file addons/cpp/mixins/observer/builder.hpp
 * @brief Observer builder.
 */
 
#pragma once
 
#include "../../utils/builder.hpp"
#include "builder_i.hpp"
 
namespace flecs {
namespace _ {
    template <typename ... Components>
    using observer_builder_base = builder<
        observer, ecs_observer_desc_t, observer_builder<Components...>, 
        observer_builder_i, Components ...>;
}
 
/** Observer builder.
 * 
 * @ingroup cpp_observers
 */
template <typename ... Components>
struct observer_builder final : _::observer_builder_base<Components...> {
    /** Construct an observer builder. */
    observer_builder(flecs::world_t* world, const char *name = nullptr)
        : _::observer_builder_base<Components...>(world, name)
    {
        _::populate_signature<Components...>(world, this);
    }
};
 
}