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#include <gtest/gtest.h>
#include <entt/core/hashed_string.hpp>
#include <entt/entity/registry.hpp>
enum class my_entity : entt::id_type {};
TEST(Example, EntityCopy) {
using namespace entt::literals;
entt::registry registry{};
auto &&custom = registry.storage<double>("custom"_hs);
const auto src = registry.create();
const auto dst = registry.create();
const auto other = registry.create();
custom.emplace(src, 1.);
registry.emplace<int>(src, 42);
registry.emplace<char>(src, 'c');
registry.emplace<double>(other, 3.);
ASSERT_TRUE(custom.contains(src));
ASSERT_FALSE(registry.all_of<double>(src));
ASSERT_TRUE((registry.all_of<int, char>(src)));
ASSERT_FALSE((registry.any_of<int, char, double>(dst)));
ASSERT_FALSE(custom.contains(dst));
for(auto [id, storage]: registry.storage()) {
// discard the custom storage because why not, this is just an example after all
if(id != "custom"_hs && storage.contains(src)) {
storage.emplace(dst, storage.get(src));
}
}
ASSERT_TRUE((registry.all_of<int, char>(dst)));
ASSERT_FALSE((registry.all_of<double>(dst)));
ASSERT_FALSE(custom.contains(dst));
ASSERT_EQ(registry.get<int>(dst), 42);
ASSERT_EQ(registry.get<char>(dst), 'c');
}
TEST(Example, DifferentRegistryTypes) {
using namespace entt::literals;
entt::basic_registry<entt::entity> registry{};
entt::basic_registry<my_entity> other{};
static_cast<void>(registry.storage<double>());
static_cast<void>(other.storage<int>());
const auto src = registry.create();
const auto dst = other.create();
registry.emplace<int>(src, 42);
registry.emplace<char>(src, 'c');
for(auto [id, storage]: registry.storage()) {
if(auto it = other.storage(id); it != other.storage().end() && storage.contains(src)) {
it->second.emplace(dst, storage.get(src));
}
}
ASSERT_TRUE((registry.all_of<int, char>(src)));
ASSERT_FALSE(other.all_of<char>(dst));
ASSERT_TRUE(other.all_of<int>(dst));
ASSERT_EQ(other.get<int>(dst), 42);
}