merge `master` into `loek/util`

3 files changed, 360 insertions, 0 deletions

diff --git a/src/test/CMakeLists.txt b/src/test/CMakeLists.txt
index f6e1dbb..f189e3d 100644
--- a/src/test/CMakeLists.txt
+++ b/src/test/CMakeLists.txt
@@ -6,5 +6,7 @@ target_sources(test_main PUBLIC
 	AssetTest.cpp
 	OptionalRefTest.cpp
 	RenderSystemTest.cpp
+	ECSTest.cpp
+	SceneManagerTest.cpp
 )
 
diff --git a/src/test/ECSTest.cpp b/src/test/ECSTest.cpp
new file mode 100644
index 0000000..d5a5826
--- /dev/null
+++ b/src/test/ECSTest.cpp
@@ -0,0 +1,236 @@
+#include <gtest/gtest.h>
+
+#define protected public
+
+#include <crepe/ComponentManager.h>
+#include <crepe/api/GameObject.h>
+#include <crepe/api/Metadata.h>
+#include <crepe/api/Transform.h>
+#include <crepe/api/Vector2.h>
+
+using namespace std;
+using namespace crepe;
+
+class ECSTest : public ::testing::Test {
+public:
+	ComponentManager mgr{};
+};
+
+TEST_F(ECSTest, createGameObject) {
+	GameObject obj = mgr.new_object("body", "person", Vector2{0, 0}, 0, 1);
+
+	vector<reference_wrapper<Metadata>> metadata = mgr.get_components_by_type<Metadata>();
+	vector<reference_wrapper<Transform>> transform = mgr.get_components_by_type<Transform>();
+
+	EXPECT_EQ(metadata.size(), 1);
+	EXPECT_EQ(transform.size(), 1);
+
+	EXPECT_EQ(metadata[0].get().name, "body");
+	EXPECT_EQ(metadata[0].get().tag, "person");
+	EXPECT_EQ(metadata[0].get().parent, -1);
+	EXPECT_EQ(metadata[0].get().children.size(), 0);
+
+	EXPECT_EQ(transform[0].get().position.x, 0);
+	EXPECT_EQ(transform[0].get().position.y, 0);
+	EXPECT_EQ(transform[0].get().rotation, 0);
+	EXPECT_EQ(transform[0].get().scale, 1);
+}
+
+TEST_F(ECSTest, deleteAllGameObjects) {
+	GameObject obj0 = mgr.new_object("body", "person", Vector2{0, 0}, 0, 1);
+	GameObject obj1 = mgr.new_object("body", "person", Vector2{0, 0}, 0, 1);
+
+	mgr.delete_all_components();
+
+	vector<reference_wrapper<Metadata>> metadata = mgr.get_components_by_type<Metadata>();
+	vector<reference_wrapper<Transform>> transform = mgr.get_components_by_type<Transform>();
+
+	EXPECT_EQ(metadata.size(), 0);
+	EXPECT_EQ(transform.size(), 0);
+
+	GameObject obj2 = mgr.new_object("body2", "person2", Vector2{1, 0}, 5, 1);
+
+	metadata = mgr.get_components_by_type<Metadata>();
+	transform = mgr.get_components_by_type<Transform>();
+
+	EXPECT_EQ(metadata.size(), 1);
+	EXPECT_EQ(transform.size(), 1);
+
+	EXPECT_EQ(metadata[0].get().game_object_id, 0);
+	EXPECT_EQ(metadata[0].get().name, "body2");
+	EXPECT_EQ(metadata[0].get().tag, "person2");
+	EXPECT_EQ(metadata[0].get().parent, -1);
+	EXPECT_EQ(metadata[0].get().children.size(), 0);
+
+	EXPECT_EQ(transform[0].get().game_object_id, 0);
+	EXPECT_EQ(transform[0].get().position.x, 1);
+	EXPECT_EQ(transform[0].get().position.y, 0);
+	EXPECT_EQ(transform[0].get().rotation, 5);
+	EXPECT_EQ(transform[0].get().scale, 1);
+}
+
+TEST_F(ECSTest, deleteGameObject) {
+	GameObject obj0 = mgr.new_object("body", "person", Vector2{0, 0}, 0, 1);
+	GameObject obj1 = mgr.new_object("body", "person", Vector2{0, 0}, 0, 1);
+
+	mgr.delete_all_components_of_id(0);
+
+	vector<reference_wrapper<Metadata>> metadata = mgr.get_components_by_type<Metadata>();
+	vector<reference_wrapper<Transform>> transform = mgr.get_components_by_type<Transform>();
+
+	EXPECT_EQ(metadata.size(), 1);
+	EXPECT_EQ(transform.size(), 1);
+
+	EXPECT_EQ(metadata[0].get().game_object_id, 1);
+	EXPECT_EQ(metadata[0].get().name, "body");
+	EXPECT_EQ(metadata[0].get().tag, "person");
+	EXPECT_EQ(metadata[0].get().parent, -1);
+	EXPECT_EQ(metadata[0].get().children.size(), 0);
+
+	EXPECT_EQ(transform[0].get().game_object_id, 1);
+	EXPECT_EQ(transform[0].get().position.x, 0);
+	EXPECT_EQ(transform[0].get().position.y, 0);
+	EXPECT_EQ(transform[0].get().rotation, 0);
+	EXPECT_EQ(transform[0].get().scale, 1);
+}
+
+TEST_F(ECSTest, manyGameObjects) {
+	for (int i = 0; i < 5000; i++) {
+		GameObject obj = mgr.new_object("body", "person", Vector2{0, 0}, 0, i);
+	}
+
+	vector<reference_wrapper<Metadata>> metadata = mgr.get_components_by_type<Metadata>();
+	vector<reference_wrapper<Transform>> transform = mgr.get_components_by_type<Transform>();
+
+	EXPECT_EQ(metadata.size(), 5000);
+	EXPECT_EQ(transform.size(), 5000);
+	for (int i = 0; i < 5000; i++) {
+		EXPECT_EQ(metadata[i].get().game_object_id, i);
+		EXPECT_EQ(metadata[i].get().name, "body");
+		EXPECT_EQ(metadata[i].get().tag, "person");
+		EXPECT_EQ(metadata[i].get().parent, -1);
+		EXPECT_EQ(metadata[i].get().children.size(), 0);
+
+		EXPECT_EQ(transform[i].get().game_object_id, i);
+		EXPECT_EQ(transform[i].get().position.x, 0);
+		EXPECT_EQ(transform[i].get().position.y, 0);
+		EXPECT_EQ(transform[i].get().rotation, 0);
+		EXPECT_EQ(transform[i].get().scale, i);
+	}
+
+	mgr.delete_components<Metadata>();
+
+	metadata = mgr.get_components_by_type<Metadata>();
+	transform = mgr.get_components_by_type<Transform>();
+
+	EXPECT_EQ(metadata.size(), 0);
+	EXPECT_EQ(transform.size(), 5000);
+
+	for (int i = 0; i < 10000 - 5000; i++) {
+		string tag = "person" + to_string(i);
+		GameObject obj = mgr.new_object("body", tag, Vector2{0, 0}, i, 0);
+	}
+
+	metadata = mgr.get_components_by_type<Metadata>();
+	transform = mgr.get_components_by_type<Transform>();
+
+	EXPECT_EQ(metadata.size(), 10000 - 5000);
+	EXPECT_EQ(transform.size(), 10000);
+}
+
+TEST_F(ECSTest, getComponentsByID) {
+	GameObject obj0 = mgr.new_object("body", "person", Vector2{0, 0}, 0, 1);
+	GameObject obj1 = mgr.new_object("body", "person", Vector2{0, 0}, 0, 1);
+
+	vector<reference_wrapper<Metadata>> metadata = mgr.get_components_by_id<Metadata>(0);
+	vector<reference_wrapper<Transform>> transform = mgr.get_components_by_id<Transform>(1);
+
+	EXPECT_EQ(metadata.size(), 1);
+	EXPECT_EQ(transform.size(), 1);
+
+	EXPECT_EQ(metadata[0].get().game_object_id, 0);
+	EXPECT_EQ(metadata[0].get().name, "body");
+	EXPECT_EQ(metadata[0].get().tag, "person");
+	EXPECT_EQ(metadata[0].get().parent, -1);
+	EXPECT_EQ(metadata[0].get().children.size(), 0);
+
+	EXPECT_EQ(transform[0].get().game_object_id, 1);
+	EXPECT_EQ(transform[0].get().position.x, 0);
+	EXPECT_EQ(transform[0].get().position.y, 0);
+	EXPECT_EQ(transform[0].get().rotation, 0);
+	EXPECT_EQ(transform[0].get().scale, 1);
+}
+
+TEST_F(ECSTest, tooMuchComponents) {
+	try {
+		GameObject obj0 = mgr.new_object("body", "person", Vector2{0, 0}, 0, 1);
+		obj0.add_component<Transform>(Vector2{10, 10}, 0, 1);
+	} catch (const exception & e) {
+		EXPECT_EQ(e.what(),
+				  string("Exceeded maximum number of instances for this component type"));
+	}
+
+	try {
+		GameObject obj1 = mgr.new_object("body", "person", Vector2{0, 0}, 0, 1);
+		obj1.add_component<Metadata>("body", "person");
+	} catch (const exception & e) {
+		EXPECT_EQ(e.what(),
+				  string("Exceeded maximum number of instances for this component type"));
+	}
+
+	vector<reference_wrapper<Metadata>> metadata = mgr.get_components_by_type<Metadata>();
+
+	EXPECT_EQ(metadata.size(), 2);
+	EXPECT_EQ(metadata[0].get().name, "body");
+	EXPECT_EQ(metadata[1].get().name, "body");
+}
+
+TEST_F(ECSTest, partentChild) {
+	{
+		GameObject body = mgr.new_object("body", "person", Vector2{0, 0}, 0, 1);
+		GameObject right_leg = mgr.new_object("rightLeg", "person", Vector2{1, 1}, 0, 1);
+		GameObject left_leg = mgr.new_object("leftLeg", "person", Vector2{1, 1}, 0, 1);
+		GameObject right_foot = mgr.new_object("rightFoot", "person", Vector2{2, 2}, 0, 1);
+		GameObject left_foot = mgr.new_object("leftFoot", "person", Vector2{2, 2}, 0, 1);
+
+		// Set the parent of each GameObject
+		right_foot.set_parent(right_leg);
+		left_foot.set_parent(left_leg);
+		right_leg.set_parent(body);
+		left_leg.set_parent(body);
+	}
+
+	// Get the Metadata and Transform components of each GameObject
+	vector<reference_wrapper<Metadata>> metadata = mgr.get_components_by_type<Metadata>();
+
+	// Check IDs
+	EXPECT_EQ(metadata[0].get().game_object_id, 0);
+	EXPECT_EQ(metadata[1].get().game_object_id, 1);
+	EXPECT_EQ(metadata[2].get().game_object_id, 2);
+	EXPECT_EQ(metadata[3].get().game_object_id, 3);
+	EXPECT_EQ(metadata[4].get().game_object_id, 4);
+
+	// Check the parent-child relationships
+	EXPECT_EQ(metadata[0].get().name, "body");
+	EXPECT_EQ(metadata[1].get().name, "rightLeg");
+	EXPECT_EQ(metadata[2].get().name, "leftLeg");
+	EXPECT_EQ(metadata[3].get().name, "rightFoot");
+	EXPECT_EQ(metadata[4].get().name, "leftFoot");
+
+	EXPECT_EQ(metadata[0].get().parent, -1);
+	EXPECT_EQ(metadata[1].get().parent, 0);
+	EXPECT_EQ(metadata[2].get().parent, 0);
+	EXPECT_EQ(metadata[3].get().parent, 1);
+	EXPECT_EQ(metadata[4].get().parent, 2);
+
+	EXPECT_EQ(metadata[0].get().children.size(), 2);
+	EXPECT_EQ(metadata[1].get().children.size(), 1);
+	EXPECT_EQ(metadata[2].get().children.size(), 1);
+	EXPECT_EQ(metadata[3].get().children.size(), 0);
+	EXPECT_EQ(metadata[4].get().children.size(), 0);
+
+	EXPECT_EQ(metadata[0].get().children[0], 1);
+	EXPECT_EQ(metadata[0].get().children[1], 2);
+	EXPECT_EQ(metadata[1].get().children[0], 3);
+	EXPECT_EQ(metadata[2].get().children[0], 4);
+}
diff --git a/src/test/SceneManagerTest.cpp b/src/test/SceneManagerTest.cpp
new file mode 100644
index 0000000..69e1171
--- /dev/null
+++ b/src/test/SceneManagerTest.cpp
@@ -0,0 +1,122 @@
+#include <crepe/ComponentManager.h>
+#include <crepe/api/GameObject.h>
+#include <crepe/api/Metadata.h>
+#include <crepe/api/Scene.h>
+#include <crepe/api/SceneManager.h>
+#include <crepe/api/Transform.h>
+#include <crepe/api/Vector2.h>
+#include <gtest/gtest.h>
+
+using namespace std;
+using namespace crepe;
+
+class ConcreteScene1 : public Scene {
+public:
+	using Scene::Scene;
+
+	void load_scene() {
+		auto & mgr = this->component_manager;
+		GameObject object1 = mgr.new_object("scene_1", "tag_scene_1", Vector2{0, 0}, 0, 1);
+		GameObject object2 = mgr.new_object("scene_1", "tag_scene_1", Vector2{1, 0}, 0, 1);
+		GameObject object3 = mgr.new_object("scene_1", "tag_scene_1", Vector2{2, 0}, 0, 1);
+	}
+};
+
+class ConcreteScene2 : public Scene {
+public:
+	using Scene::Scene;
+
+	void load_scene() {
+		auto & mgr = this->component_manager;
+		GameObject object1 = mgr.new_object("scene_2", "tag_scene_2", Vector2{0, 0}, 0, 1);
+		GameObject object2 = mgr.new_object("scene_2", "tag_scene_2", Vector2{0, 1}, 0, 1);
+		GameObject object3 = mgr.new_object("scene_2", "tag_scene_2", Vector2{0, 2}, 0, 1);
+		GameObject object4 = mgr.new_object("scene_2", "tag_scene_2", Vector2{0, 3}, 0, 1);
+	}
+};
+
+class SceneManagerTest : public ::testing::Test {
+public:
+	ComponentManager component_mgr{};
+	SceneManager scene_mgr{component_mgr};
+};
+
+TEST_F(SceneManagerTest, loadScene) {
+	scene_mgr.add_scene<ConcreteScene1>("scene1");
+	scene_mgr.add_scene<ConcreteScene2>("scene2");
+
+	scene_mgr.load_next_scene();
+
+	vector<reference_wrapper<Metadata>> metadata
+		= component_mgr.get_components_by_type<Metadata>();
+	vector<reference_wrapper<Transform>> transform
+		= component_mgr.get_components_by_type<Transform>();
+
+	EXPECT_EQ(metadata.size(), 3);
+	EXPECT_EQ(transform.size(), 3);
+
+	EXPECT_EQ(metadata[0].get().game_object_id, 0);
+	EXPECT_EQ(metadata[0].get().name, "scene_1");
+	EXPECT_EQ(metadata[0].get().tag, "tag_scene_1");
+	EXPECT_EQ(metadata[0].get().parent, -1);
+	EXPECT_EQ(metadata[0].get().children.size(), 0);
+	EXPECT_EQ(transform[0].get().position.x, 0);
+	EXPECT_EQ(transform[0].get().position.y, 0);
+
+	EXPECT_EQ(metadata[1].get().game_object_id, 1);
+	EXPECT_EQ(metadata[1].get().name, "scene_1");
+	EXPECT_EQ(metadata[1].get().tag, "tag_scene_1");
+	EXPECT_EQ(metadata[1].get().parent, -1);
+	EXPECT_EQ(metadata[1].get().children.size(), 0);
+	EXPECT_EQ(transform[1].get().position.x, 1);
+	EXPECT_EQ(transform[1].get().position.y, 0);
+
+	EXPECT_EQ(metadata[2].get().game_object_id, 2);
+	EXPECT_EQ(metadata[2].get().name, "scene_1");
+	EXPECT_EQ(metadata[2].get().tag, "tag_scene_1");
+	EXPECT_EQ(metadata[2].get().parent, -1);
+	EXPECT_EQ(metadata[2].get().children.size(), 0);
+	EXPECT_EQ(transform[2].get().position.x, 2);
+	EXPECT_EQ(transform[2].get().position.y, 0);
+
+	scene_mgr.set_next_scene("scene2");
+	scene_mgr.load_next_scene();
+
+	metadata = component_mgr.get_components_by_type<Metadata>();
+	transform = component_mgr.get_components_by_type<Transform>();
+
+	EXPECT_EQ(metadata.size(), 4);
+	EXPECT_EQ(transform.size(), 4);
+
+	EXPECT_EQ(metadata[0].get().game_object_id, 0);
+	EXPECT_EQ(metadata[0].get().name, "scene_2");
+	EXPECT_EQ(metadata[0].get().tag, "tag_scene_2");
+	EXPECT_EQ(metadata[0].get().parent, -1);
+	EXPECT_EQ(metadata[0].get().children.size(), 0);
+	EXPECT_EQ(transform[0].get().position.x, 0);
+	EXPECT_EQ(transform[0].get().position.y, 0);
+
+	EXPECT_EQ(metadata[1].get().game_object_id, 1);
+	EXPECT_EQ(metadata[1].get().name, "scene_2");
+	EXPECT_EQ(metadata[1].get().tag, "tag_scene_2");
+	EXPECT_EQ(metadata[1].get().parent, -1);
+	EXPECT_EQ(metadata[1].get().children.size(), 0);
+	EXPECT_EQ(transform[1].get().position.x, 0);
+	EXPECT_EQ(transform[1].get().position.y, 1);
+
+	EXPECT_EQ(metadata[2].get().game_object_id, 2);
+	EXPECT_EQ(metadata[2].get().name, "scene_2");
+	EXPECT_EQ(metadata[2].get().tag, "tag_scene_2");
+	EXPECT_EQ(metadata[2].get().parent, -1);
+	EXPECT_EQ(metadata[2].get().children.size(), 0);
+	EXPECT_EQ(transform[2].get().position.x, 0);
+	EXPECT_EQ(transform[2].get().position.y, 2);
+
+	EXPECT_EQ(metadata[3].get().game_object_id, 3);
+	EXPECT_EQ(metadata[3].get().name, "scene_2");
+	EXPECT_EQ(metadata[3].get().tag, "tag_scene_2");
+	EXPECT_EQ(metadata[3].get().parent, -1);
+	EXPECT_EQ(metadata[3].get().children.size(), 0);
+	EXPECT_EQ(transform[3].get().position.x, 0);
+	EXPECT_EQ(transform[3].get().position.y, 3);
+}