Flecs v3.2
A fast entity component system (ECS) for C & C++
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flecs::observer_builder_i< Base, Components > Struct Template Referenceabstract

Observer builder interface. More...

#include <builder_i.hpp>

Inheritance diagram for flecs::observer_builder_i< Base, Components >:
[legend]

Public Types

using BaseClass = filter_builder_i<Base, Components ...>
 

Public Member Functions

 observer_builder_i (ecs_observer_desc_t *desc)
 
Base & event (entity_t evt)
 Specify the event(s) for when the observer should run.
 
template<typename E >
Base & event ()
 Specify the event(s) for when the observer should run.
 
Base & yield_existing (bool value=true)
 Invoke observer for anything that matches its filter on creation.
 
Base & ctx (void *ptr)
 Set observer context.
 
Base & run (ecs_iter_action_t action)
 Set observer run callback.
 
- Public Member Functions inherited from flecs::filter_builder_i< Base, Components ... >
 filter_builder_i (ecs_filter_desc_t *desc, int32_t term_index=0)
 
Base & instanced ()
 
Base & filter_flags (ecs_flags32_t flags)
 
Base & expr (const char *expr)
 
Base & with (Args &&... args)
 
Base & with (Args &&... args)
 
Base & with ()
 
Base & without (Args &&... args)
 
Base & without (Args &&... args)
 
Base & without ()
 
Base & write ()
 
Base & write (Args &&... args)
 
Base & write (Args &&... args)
 
Base & write ()
 
Base & read ()
 
Base & read (Args &&... args)
 
Base & read (Args &&... args)
 
Base & read ()
 
Base & scope_open ()
 
Base & scope_close ()
 
Base & term ()
 
Base & term ()
 
Base & term (id_t id)
 
Base & term (const char *name)
 
Base & term (const char *first, const char *second)
 
Base & term (entity_t r, entity_t o)
 
Base & term (entity_t r, const char *o)
 
Base & term (id_t o)
 
Base & term (const char *second)
 
Base & term ()
 
Base & term (E value)
 
Base & term (flecs::term &term)
 
Base & term (flecs::term &&term)
 
Base & term_at (int32_t term_index)
 
Base & arg (int32_t term_index)
 
- Public Member Functions inherited from flecs::term_builder_i< Base >
 term_builder_i (ecs_term_t *term_ptr)
 
Base & term (id_t id)
 
Base & src ()
 
Base & first ()
 
Base & second ()
 
Base & src (flecs::entity_t id)
 
template<typename T >
Base & src ()
 
Base & src (const char *name)
 
Base & first (flecs::entity_t id)
 
template<typename T >
Base & first ()
 
Base & first (const char *name)
 
Base & second (flecs::entity_t id)
 
template<typename T >
Base & second ()
 
Base & second (const char *name)
 
Base & role (id_t role)
 Set role of term.
 
Base & inout (flecs::inout_kind_t inout)
 Set read/write access of term.
 
Base & inout_stage (flecs::inout_kind_t inout)
 Set read/write access for stage.
 
Base & write ()
 Short for inout_stage(flecs::Out).
 
Base & read ()
 Short for inout_stage(flecs::In).
 
Base & read_write ()
 Short for inout_stage(flecs::InOut).
 
Base & in ()
 Short for inout(flecs::In)
 
Base & out ()
 Short for inout(flecs::Out)
 
Base & inout ()
 Short for inout(flecs::InOut)
 
Base & inout_none ()
 Short for inout(flecs::In)
 
Base & oper (flecs::oper_kind_t oper)
 Set operator of term.
 
Base & and_ ()
 
Base & or_ ()
 
Base & not_ ()
 
Base & optional ()
 
Base & and_from ()
 
Base & or_from ()
 
Base & not_from ()
 
Base & singleton ()
 Match singleton.
 
Base & filter ()
 
- Public Member Functions inherited from flecs::term_id_builder_i< Base >
Base & self ()
 
Base & up (flecs::entity_t trav=0)
 
template<typename Trav >
Base & up ()
 
Base & cascade (flecs::entity_t trav=0)
 
template<typename Trav >
Base & cascade ()
 
Base & desc ()
 
Base & parent ()
 
Base & trav (flecs::entity_t trav, flecs::flags32_t flags=0)
 
Base & id (flecs::entity_t id)
 
Base & entity (flecs::entity_t entity)
 
Base & name (const char *name)
 
Base & var (const char *var_name)
 
Base & flags (flecs::flags32_t flags)
 

Protected Member Functions

virtual flecs::world_t * world_v ()=0
 
- Protected Member Functions inherited from flecs::term_builder_i< Base >
void set_term (ecs_term_t *term)
 

Additional Inherited Members

- Public Attributes inherited from flecs::term_builder_i< Base >
ecs_term_tm_term
 
- Public Attributes inherited from flecs::term_id_builder_i< Base >
ecs_term_id_tm_term_id
 
- Protected Attributes inherited from flecs::filter_builder_i< Base, Components ... >
int32_t m_term_index
 
int32_t m_expr_count
 

Detailed Description

template<typename Base, typename ... Components>
struct flecs::observer_builder_i< Base, Components >

Observer builder interface.

Definition at line 17 of file builder_i.hpp.

Member Typedef Documentation

◆ BaseClass

template<typename Base , typename ... Components>
using flecs::observer_builder_i< Base, Components >::BaseClass = filter_builder_i<Base, Components ...>

Definition at line 18 of file builder_i.hpp.

Constructor & Destructor Documentation

◆ observer_builder_i() [1/2]

template<typename Base , typename ... Components>
flecs::observer_builder_i< Base, Components >::observer_builder_i ( )
inline

Definition at line 19 of file builder_i.hpp.

◆ observer_builder_i() [2/2]

template<typename Base , typename ... Components>
flecs::observer_builder_i< Base, Components >::observer_builder_i ( ecs_observer_desc_t * desc)
inline

Definition at line 24 of file builder_i.hpp.

Member Function Documentation

◆ ctx()

template<typename Base , typename ... Components>
Base & flecs::observer_builder_i< Base, Components >::ctx ( void * ptr)
inline

Set observer context.

Definition at line 53 of file builder_i.hpp.

◆ event() [1/2]

template<typename Base , typename ... Components>
template<typename E >
Base & flecs::observer_builder_i< Base, Components >::event ( )
inline

Specify the event(s) for when the observer should run.

Template Parameters
EThe event.

Definition at line 41 of file builder_i.hpp.

◆ event() [2/2]

template<typename Base , typename ... Components>
Base & flecs::observer_builder_i< Base, Components >::event ( entity_t evt)
inline

Specify the event(s) for when the observer should run.

Parameters
evtThe event.

Definition at line 32 of file builder_i.hpp.

◆ run()

template<typename Base , typename ... Components>
Base & flecs::observer_builder_i< Base, Components >::run ( ecs_iter_action_t action)
inline

Set observer run callback.

Definition at line 59 of file builder_i.hpp.

◆ world_v()

template<typename Base , typename ... Components>
virtual flecs::world_t * flecs::observer_builder_i< Base, Components >::world_v ( )
protectedpure virtual

◆ yield_existing()

template<typename Base , typename ... Components>
Base & flecs::observer_builder_i< Base, Components >::yield_existing ( bool value = true)
inline

Invoke observer for anything that matches its filter on creation.

Definition at line 47 of file builder_i.hpp.


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