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#include "entity.h"
#include "component.h"
#include <algorithm>
#include <iostream>
#include <memory>
namespace yage
{
Entity EntityManager::create_entity()
{
Entity entity = update_next_entity();
component_masks_.push_back(ComponentMask(0));
return entity;
}
EntityManager &EntityManager::delete_entity(Entity entity)
{
deleted_.push_back(entity);
return *this;
}
bool EntityManager::is_valid(Entity entity) const
{
auto it = std::find(deleted_.begin(), deleted_.end(), entity);
if (it == deleted_.end()) {
return true;
}
return false;
}
EntityManager &
EntityManager::add_component(Entity entity,
std::unique_ptr<BaseComponent> &&component)
{
auto id = component->getGroup();
component_masks_[entity] =
component_masks_[entity] | ComponentMask(1 << id);
if (id+1 > component_group_.size()) {
component_group_.resize(id+1);
}
component_group_[id].add(std::move(component));
return *this;
}
Entity EntityManager::update_next_entity()
{
if (deleted_.empty()) {
return next_entity_++;
}
Entity ent = deleted_.back();
deleted_.pop_back();
return ent;
}
} // namespace yage
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