add hold callback on button

sources/Component/Button/ButtonComponent.cpp

@@ -16,18 +16,20 @@ namespace BBM
 	}
 
 	ButtonComponent::ButtonComponent(WAL::Entity &entity, WAL::Callback<> idleCallback,
-	WAL::Callback<> hoverCallback, WAL::Callback<> clickCallback)
+	WAL::Callback<> hoverCallback, WAL::Callback<> clickCallback, WAL::Callback<> holdCallback)
 	:	WAL::Component(entity),
 		onIdle(idleCallback),
 		onHover(hoverCallback),
-		onClick(clickCallback)
+		onClick(clickCallback),
+		onHold(holdCallback)
 	{ }
 
 	ButtonComponent::ButtonComponent(WAL::Entity &entity, std::function<void()> idleCallback,
-	std::function<void()> hoverCallback, std::function<void()> clickCallback)
+	std::function<void()> hoverCallback, std::function<void()> clickCallback, std::function<void()> holdCallback)
 	:	WAL::Component(entity),
 		onIdle(idleCallback),
 		onHover(hoverCallback),
-		onClick(clickCallback)
+		onClick(clickCallback),
+		onHold(holdCallback)
 	{ }
 }

sources/Component/Button/ButtonComponent.hpp

@@ -19,8 +19,11 @@ namespace BBM
 			//! @brief onHover callback
 			WAL::Callback<> onHover;
 
-			//! @brief onClick callback
+			//! @brief onClick callback, when the mouse button is released
 			WAL::Callback<> onClick;
+
+			//! @brief onHold callback, when the mouse button is pressed
+			WAL::Callback<> onHold;
 			
 
 			//! @inherit
@@ -30,10 +33,10 @@ namespace BBM
 			explicit ButtonComponent(WAL::Entity &entity);
 
 			//! @brief Constructor with the 3 callback
-			ButtonComponent(WAL::Entity &entity, WAL::Callback<> idleCallback, WAL::Callback<> hoverCallback, WAL::Callback<> clickCallback);
+			ButtonComponent(WAL::Entity &entity, WAL::Callback<> idleCallback, WAL::Callback<> hoverCallback, WAL::Callback<> clickCallback, WAL::Callback<> holdCallback);
 			
 			//! @brief Constructor with the 3 std functions
-			ButtonComponent(WAL::Entity &entity, std::function<void()> idleCallback, std::function<void()> hoverCallback, std::function<void()> clickCallback);
+			ButtonComponent(WAL::Entity &entity, std::function<void()> idleCallback, std::function<void()> hoverCallback, std::function<void()> clickCallback, std::function<void()> holdCallback);
 			
 			//! @brief A Controllable component is copy constructable.
 			ButtonComponent(const ButtonComponent &) = default;

sources/Models/GameState.hpp

@@ -22,7 +22,6 @@ namespace BBM
 			SettingsScene,
 			PauseMenuScene,
 			LobbyScene,
-
 		};