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registry: use fast path if available, standard path otherwise

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This commit is contained in:
Michele Caini
2020-04-05 22:07:35 +02:00
parent dc403ce8ab
commit 5259142eb6
1 changed files with 32 additions and 13 deletions
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45
src/entt/entity/registry.hpp
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@@ -187,21 +187,40 @@ class basic_registry {
template<typename Component>
const pool_handler<Component> & assure() const {
static_assert(std::is_same_v<Component, std::decay_t<Component>>);
const auto index = type_index<Component>::value();
if(!(index < pools.size())) {
pools.resize(index+1);
if constexpr(has_type_index_v<Component>) {
const auto index = type_index<Component>::value();
if(!(index < pools.size())) {
pools.resize(index+1);
}
if(auto &&cpool = pools[index]; !cpool.pool) {
cpool.type_id = type_info<Component>::id();
cpool.pool.reset(new pool_handler<Component>());
cpool.remove = [](sparse_set<entity_type> &cpool, basic_registry &owner, const entity_type entt) {
static_cast<pool_handler<Component> &>(cpool).remove(owner, entt);
};
}
return static_cast<pool_handler<Component> &>(*pools[index].pool);
} else {
sparse_set<entity_type> *cpool{nullptr};
if(auto it = std::find_if(pools.begin(), pools.end(), [id = type_info<Component>::id()](const auto &pdata) { return id == pdata.type_id; }); it == pools.cend()) {
cpool = pools.emplace_back(pool_data{
type_info<Component>::id(),
std::unique_ptr<sparse_set<entity_type>>{new pool_handler<Component>()},
[](sparse_set<entity_type> &cpool, basic_registry &owner, const entity_type entt) {
static_cast<pool_handler<Component> &>(cpool).remove(owner, entt);
}
}).pool.get();
} else {
cpool = it->pool.get();
}
return static_cast<pool_handler<Component> &>(*cpool);
}
if(auto &&cpool = pools[index]; !cpool.pool) {
cpool.type_id = type_info<Component>::id();
cpool.pool.reset(new pool_handler<Component>());
cpool.remove = [](sparse_set<entity_type> &cpool, basic_registry &owner, const entity_type entt) {
static_cast<pool_handler<Component> &>(cpool).remove(owner, entt);
};
}
return static_cast<pool_handler<Component> &>(*pools[index].pool);
}
template<typename Component>