58 lines
1.3 KiB
C++
58 lines
1.3 KiB
C++
#include <type_traits>
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#include <gtest/gtest.h>
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#include <entt/entity/entity.hpp>
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#include <entt/entity/registry.hpp>
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struct entity_id {
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using entity_type = typename entt::entt_traits<entt::entity>::entity_type;
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entity_id(entity_type value = entt::null)
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: entt{value}
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{}
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entity_id(const entity_id &other)
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: entt{other.entt}
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{}
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operator entity_type() const {
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return entt;
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}
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private:
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entity_type entt;
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};
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template<>
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struct entt::entt_traits<entity_id>: entt::entt_traits<entt::entity> {};
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TEST(Example, CustomIdentifier) {
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entt::basic_registry<entity_id> registry{};
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entity_id entity{};
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ASSERT_FALSE(registry.valid(entity));
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ASSERT_TRUE(entity == entt::null);
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entity = registry.create();
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ASSERT_TRUE(registry.valid(entity));
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ASSERT_TRUE(entity != entt::null);
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ASSERT_FALSE((registry.all_of<int, char>(entity)));
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ASSERT_EQ(registry.try_get<int>(entity), nullptr);
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registry.emplace<int>(entity, 42);
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ASSERT_TRUE((registry.any<int, char>(entity)));
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ASSERT_EQ(registry.get<int>(entity), 42);
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registry.destroy(entity);
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ASSERT_FALSE(registry.valid(entity));
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ASSERT_TRUE(entity != entt::null);
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entity = registry.create();
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ASSERT_TRUE(registry.valid(entity));
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ASSERT_TRUE(entity != entt::null);
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}
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