entt::basic_collector< matcher< type_list< Reject... >, type_list< Require... >, Rule... >, Other... > Struct Template Reference

Collector. More...

#include <observer.hpp>

Public Types
using	current_type = matcher< type_list< Reject... >, type_list< Require... >, Rule... >
	Current matcher.

Static Public Member Functions
template<typename... AllOf, typename... NoneOf>
static constexpr auto	group (exclude_t< NoneOf... >=exclude_t{}) noexcept
	Adds a grouping matcher to the collector.
template<typename AnyOf >
static constexpr auto	update () noexcept
	Adds an observing matcher to the collector.
template<typename... AllOf, typename... NoneOf>
static constexpr auto	where (exclude_t< NoneOf... >=exclude_t{}) noexcept
	Updates the filter of the last added matcher.

Detailed Description

template<typename... Reject, typename... Require, typename... Rule, typename... Other>
struct entt::basic_collector< matcher< type_list< Reject... >, type_list< Require... >, Rule... >, Other... >

Collector.

A collector contains a set of rules (literally, matchers) to use to track entities.
Its main purpose is to generate a descriptor that allows an observer to know how to connect to a registry.

Template Parameters

Reject	Untracked types used to filter out entities.
Require	Untracked types required by the matcher.
Rule	Specific details of the current matcher.
Other	Other matchers.

Definition at line 70 of file observer.hpp.

Member Typedef Documentation

current_type

template<typename... Reject, typename... Require, typename... Rule, typename... Other>

using entt::basic_collector< matcher< type_list< Reject... >, type_list< Require... >, Rule... >, Other... >::current_type = matcher<type_list<Reject...>, type_list<Require...>, Rule...>

Current matcher.

Definition at line 72 of file observer.hpp.

Member Function Documentation

group()

template<typename... Reject, typename... Require, typename... Rule, typename... Other>

template<typename... AllOf, typename... NoneOf>

static constexpr auto entt::basic_collector< matcher< type_list< Reject... >, type_list< Require... >, Rule... >, Other... >::group ( exclude_t< NoneOf... >  = exclude_t{} )

inlinestaticconstexprnoexcept

Adds a grouping matcher to the collector.

Template Parameters

AllOf	Types of components tracked by the matcher.
NoneOf	Types of components used to filter out entities.

Returns

The updated collector.

Definition at line 81 of file observer.hpp.

update()

template<typename... Reject, typename... Require, typename... Rule, typename... Other>

template<typename AnyOf >

static constexpr auto entt::basic_collector< matcher< type_list< Reject... >, type_list< Require... >, Rule... >, Other... >::update ( )

inlinestaticconstexprnoexcept

Adds an observing matcher to the collector.

Template Parameters

AnyOf

Type of component for which changes should be detected.

Returns

The updated collector.

Definition at line 91 of file observer.hpp.

where()

template<typename... Reject, typename... Require, typename... Rule, typename... Other>

template<typename... AllOf, typename... NoneOf>

static constexpr auto entt::basic_collector< matcher< type_list< Reject... >, type_list< Require... >, Rule... >, Other... >::where ( exclude_t< NoneOf... >  = exclude_t{} )

inlinestaticconstexprnoexcept

Updates the filter of the last added matcher.

Template Parameters

AllOf	Types of components required by the matcher.
NoneOf	Types of components used to filter out entities.

Returns

The updated collector.

Definition at line 102 of file observer.hpp.

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The documentation for this struct was generated from the following file:

• src/entt/entity/observer.hpp