entity::entity_pool Class Reference

Description

Definition at line 48 of file entity_pool.hpp.

Instances and minimal complete definitions
struct	signal_list

Public Types
typedef iterator_impl	const_iterator
typedef iterator_impl	iterator

Public Member Functions
iterator	begin () const
entity	create ()
shared_entity	create_shared ()
unique_entity	create_unique ()
void	destroy (entity e)
bool	empty () const
iterator	end () const
	entity_pool ()
signal_list &	signals ()
std::size_t	size () const
	~entity_pool ()

Member Function Documentation

iterator entity::entity_pool::begin

(

)

const

Definition at line 174 of file entity_pool.hpp.

Referenced by entity::begin(), entity::component::dense_pool< T >::dense_pool(), and entity::component::sparse_pool< T >::sparse_pool().

        {
            return iterator_impl(0);
        }

entity entity::entity_pool::create

(

)

Definition at line 109 of file entity_pool.hpp.

References entity::make_entity(), entity::entity_pool::signal_list::on_entity_create, and signals().

        {
            entity_index_t* new_idx = new(entity_pool_.malloc()) entity_index_t(entities_.size());
            entity ret_val = make_entity(*new_idx);
            entities_.push_back(new_idx);
            signals().on_entity_create(ret_val);
            return ret_val;
        }   

shared_entity entity::entity_pool::create_shared

(

)

Definition at line 154 of file entity_pool.hpp.

References create_unique().

        {
            return create_unique();
        }

unique_entity entity::entity_pool::create_unique

(

)

Definition at line 118 of file entity_pool.hpp.

References entity::make_entity(), entity::entity_pool::signal_list::on_entity_create, and signals().

Referenced by create_shared().

        {
            entity_index_t* new_idx_ptr = nullptr;
            void* new_index_mem = nullptr;
            bool pop_on_catch = false;
            try
            {   
                new_index_mem = entity_pool_.malloc();
                new_idx_ptr = new(new_index_mem) entity_index_t(entities_.size());

                entity ent_val = make_entity(*new_idx_ptr);
                entities_.push_back(new_idx_ptr);

                // Ensure we leave the container in a good state if shared_ptr throws.
                pop_on_catch = true;

                unique_entity::ref_type new_idx(
                    new_idx_ptr,
                    entity_deleter(*this)
                );

                signals().on_entity_create(ent_val);
                return std::move(new_idx);
            }
            catch(...)
            {
                if(pop_on_catch)
                    entities_.pop_back();
                if(new_idx_ptr)
                    new_idx_ptr->~entity_index_t();
                if(new_index_mem)
                    entity_pool_.free(new_index_mem);
                throw;
            }
        }

void entity::entity_pool::destroy

(

entity

e

)

Definition at line 159 of file entity_pool.hpp.

Referenced by ~entity_pool().

        {
            destroy_impl(e.index());
        }

bool entity::entity_pool::empty

(

)

const

Definition at line 169 of file entity_pool.hpp.

        {
            return entities_.empty();
        }

iterator entity::entity_pool::end

(

)

const

Definition at line 179 of file entity_pool.hpp.

References size().

Referenced by entity::component::dense_pool< T >::dense_pool(), entity::end(), and entity::component::sparse_pool< T >::sparse_pool().

        {
            return iterator_impl(size());
        }

signal_list& entity::entity_pool::signals

(

)

Definition at line 184 of file entity_pool.hpp.

Referenced by entity::component::sparse_pool< T >::auto_create_components(), entity::component::saturated_pool< T >::auto_create_components(), entity::component::dense_pool< T >::auto_create_components(), create(), create_unique(), entity::component::dense_pool< T >::dense_pool(), entity::component::saturated_pool< T >::saturated_pool(), and entity::component::sparse_pool< T >::sparse_pool().

        {
            return signals_;
        }

std::size_t entity::entity_pool::size

(

)

const

Definition at line 164 of file entity_pool.hpp.

Referenced by entity::component::dense_pool< T >::dense_pool(), end(), and entity::component::saturated_pool< T >::saturated_pool().

        {
            return entities_.size();
        }

Member Typedef Documentation

typedef iterator_impl entity::entity_pool::const_iterator

Definition at line 88 of file entity_pool.hpp.

typedef iterator_impl entity::entity_pool::iterator

Definition at line 87 of file entity_pool.hpp.

Constructor & Destructor Documentation

entity::entity_pool::entity_pool

(

)

Definition at line 97 of file entity_pool.hpp.

            : entity_pool_(16)
        {}

entity::entity_pool::~entity_pool

(

)

Definition at line 101 of file entity_pool.hpp.

References destroy(), and entity::make_entity().

        {
            while(!entities_.empty())
            {
                destroy(make_entity(*entities_.back()));
            }
        }