Documentation for module 'NDK'

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tests/SDK/NDK/BaseSystem.cpp

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+#include <NDK/System.hpp>
+#include <NDK/Components/NodeComponent.hpp>
+#include <NDK/Components/VelocityComponent.hpp>
+#include <NDK/World.hpp>
+#include <Catch/catch.hpp>
+
+namespace
+{
+	class TestSystem : public Ndk::System<TestSystem>
+	{
+		public:
+			TestSystem()
+			{
+				Requires<Ndk::VelocityComponent>();
+				Excludes<Ndk::NodeComponent>();
+			}
+
+			~TestSystem() = default;
+
+			static Ndk::SystemIndex systemIndex;
+
+		private:
+			void OnUpdate(float elapsedTime) override
+			{
+			}
+	};
+
+	Ndk::SystemIndex TestSystem::systemIndex;
+}
+
+SCENARIO("BaseSystem", "[NDK][BASESYSTEM]")
+{
+	GIVEN("Our TestSystem")
+	{
+		Ndk::World world;
+		Ndk::BaseSystem& system = world.AddSystem<TestSystem>();
+		REQUIRE(&system.GetWorld() == &world);
+
+		WHEN("We add an entity")
+		{
+			const Ndk::EntityHandle& entity = world.CreateEntity();
+			entity->AddComponent<Ndk::VelocityComponent>();
+
+			THEN("System should have it")
+			{
+				world.Update(1.f);
+				REQUIRE(system.HasEntity(entity));
+			}
+		}
+
+		WHEN("We add an entity with excluded component")
+		{
+			const Ndk::EntityHandle& entity = world.CreateEntity();
+			entity->AddComponent<Ndk::VelocityComponent>();
+			entity->AddComponent<Ndk::NodeComponent>();
+
+			THEN("System should not have it")
+			{
+				world.Update(1.f);
+				REQUIRE(!system.HasEntity(entity));
+			}
+		}
+	}
+}