4 files changed, 20 insertions, 30 deletions

diff --git a/src/crepe/api/Button.h b/src/crepe/api/Button.h
index 0f446c9..d42527e 100644
--- a/src/crepe/api/Button.h
+++ b/src/crepe/api/Button.h
@@ -13,9 +13,9 @@ namespace crepe {
  * This component creates a clickable surface at the transform location with the specified width and height.
  * 
  * The Button can be used in scripts by subscribing a EventHandler to the following events:
- * - **ButtonPressEvent**: Triggered when the surface is clicked with the mouse. Contains GameObject metadata.
- * - **MouseEnterEvent**: Triggered when the mouse enters the button area. Contains GameObject metadata.
- * - **MouseExitEvent**: Triggered when the mouse leaves the button area. Contains GameObject metadata.
+ * - ButtonPressEvent
+ * - ButtonEnterEvent
+ * - ButtonExitEvent
  * \see EventManager
  * 
  */
@@ -34,7 +34,7 @@ public:
 	 *
 	 * Since the button Event transfers the GameObject Metadata it will be the same for each button so only one button is allowed per GameObject	
 	 * 
-	 * \return The maximum number of instances for this component
+	 * \return 1
 	 */
 	virtual int get_instances_max() const { return 1; }
 
diff --git a/src/crepe/system/InputSystem.cpp b/src/crepe/system/InputSystem.cpp
index e42eaeb..34aad06 100644
--- a/src/crepe/system/InputSystem.cpp
+++ b/src/crepe/system/InputSystem.cpp
@@ -10,10 +10,8 @@ using namespace crepe;
 
 void InputSystem::update() {
 	ComponentManager & mgr = this->mediator.component_manager;
-
 	SDLContext & context = this->mediator.sdl_context;
 	std::vector<EventData> event_list = context.get_events();
-	RefVector<Button> buttons = mgr.get_components_by_type<Button>();
 	RefVector<Camera> cameras = mgr.get_components_by_type<Camera>();
 	OptionalRef<Camera> curr_cam_ref;
 
@@ -160,12 +158,8 @@ void InputSystem::handle_move(const EventData & event_data, const vec2 & mouse_p
 
 	for (Button & button : buttons) {
 		if (!button.active) continue;
-		RefVector<Transform> transform_vec
-			= mgr.get_components_by_id<Transform>(button.game_object_id);
-		Transform & transform = transform_vec.front().get();
-		RefVector<Metadata> metadata_vec
-			= mgr.get_components_by_id<Metadata>(button.game_object_id);
-		Metadata & metadata = metadata_vec.front().get();
+		Metadata & metadata = mgr.get_components_by_id<Metadata>(button.game_object_id).front();
+		Transform & transform = mgr.get_components_by_id<Transform>(button.game_object_id).front();
 		bool was_hovering = button.hover;
 		if (this->is_mouse_inside_button(mouse_pos, button, transform)) {
 			button.hover = true;
@@ -188,12 +182,8 @@ void InputSystem::handle_click(const MouseButton & mouse_button, const vec2 & mo
 
 	for (Button & button : buttons) {
 		if (!button.active) continue;
-		RefVector<Metadata> metadata_vec
-			= mgr.get_components_by_id<Metadata>(button.game_object_id);
-		Metadata & metadata = metadata_vec.front().get();
-		RefVector<Transform> transform_vec
-			= mgr.get_components_by_id<Transform>(button.game_object_id);
-		Transform & transform = transform_vec.front().get();
+		Metadata & metadata = mgr.get_components_by_id<Metadata>(button.game_object_id).front();
+		Transform & transform = mgr.get_components_by_id<Transform>(button.game_object_id).front();
 
 		if (this->is_mouse_inside_button(mouse_pos, button, transform)) {
 			event_mgr.trigger_event<ButtonPressEvent>(metadata);
diff --git a/src/crepe/system/InputSystem.h b/src/crepe/system/InputSystem.h
index 45c593a..e580d8e 100644
--- a/src/crepe/system/InputSystem.h
+++ b/src/crepe/system/InputSystem.h
@@ -19,31 +19,31 @@ class Transform;
 class ButtonPressEvent : public Event {
 public:
 	//! Metadata of the button.
-	const Metadata & meta_data;
+	const Metadata & metadata;
 	/**
-	 * \param meta_data Metadata of the button pressed
+	 * \param metadata Metadata of the button pressed
 	 */
-	ButtonPressEvent(const Metadata & meta_data) : meta_data(meta_data){};
+	ButtonPressEvent(const Metadata & metadata) : metadata(metadata){};
 };
 //! Event triggered when the mouse enters a button
 class ButtonEnterEvent : public Event {
 public:
 	//! Metadata of the button.
-	const Metadata & meta_data;
+	const Metadata & metadata;
 	/**
-	 * \param meta_data Metadata of the button pressed
+	 * \param metadata Metadata of the button pressed
 	 */
-	ButtonEnterEvent(const Metadata & meta_data) : meta_data(meta_data){};
+	ButtonEnterEvent(const Metadata & metadata) : metadata(metadata){};
 };
 //! Event triggered when the mouse leaves a button
 class ButtonExitEvent : public Event {
 public:
 	//! Metadata of the button.
-	const Metadata & meta_data;
+	const Metadata & metadata;
 	/**
-	 * \param meta_data Metadata of the button pressed
+	 * \param metadata Metadata of the button pressed
 	 */
-	ButtonExitEvent(const Metadata & meta_data) : meta_data(meta_data){};
+	ButtonExitEvent(const Metadata & metadata) : metadata(metadata){};
 };
 
 /**
diff --git a/src/test/InputTest.cpp b/src/test/InputTest.cpp
index 097667a..ce8ea44 100644
--- a/src/test/InputTest.cpp
+++ b/src/test/InputTest.cpp
@@ -215,7 +215,7 @@ TEST_F(InputTest, testButtonClick) {
 	bool button_clicked = false;
 	event_manager.subscribe<ButtonPressEvent>([&](const ButtonPressEvent & event) {
 		button_clicked = true;
-		EXPECT_EQ(event.meta_data.game_object_id, button_obj.id);
+		EXPECT_EQ(event.metadata.game_object_id, button_obj.id);
 		return false;
 	});
 	auto & button = button_obj.add_component<Button>(vec2{100, 100}, vec2{0, 0});
@@ -238,12 +238,12 @@ TEST_F(InputTest, testButtonHover) {
 	bool button_hover = false;
 	event_manager.subscribe<ButtonEnterEvent>([&](const ButtonEnterEvent & event) {
 		button_hover = true;
-		EXPECT_EQ(event.meta_data.game_object_id, button_obj.id);
+		EXPECT_EQ(event.metadata.game_object_id, button_obj.id);
 		return false;
 	});
 	event_manager.subscribe<ButtonExitEvent>([&](const ButtonExitEvent & event) {
 		button_hover = false;
-		EXPECT_EQ(event.meta_data.game_object_id, button_obj.id);
+		EXPECT_EQ(event.metadata.game_object_id, button_obj.id);
 		return false;
 	});
 	auto & button = button_obj.add_component<Button>(vec2{100, 100}, vec2{0, 0});