Platform/Mouse: Add SetRelativeMouseMode

examples/FirstScene/main.cpp

@@ -272,6 +272,8 @@ int main()
 	//Gestion des Evenements 
 	Nz::EventHandler& eventHandler = window.GetEventHandler();
 
+	Nz::Mouse::SetRelativeMouseMode(true);
+
 	eventHandler.OnMouseMoved.Connect([&camAngles, &cameraNode, &window](const Nz::EventHandler*, const Nz::WindowEvent::MouseMoveEvent& event)
 	{
 		if (Ndk::Application::Instance()->IsConsoleEnabled())
@@ -291,11 +293,6 @@ int main()
 
 		// On applique les angles d'Euler à notre caméra
 		cameraNode.SetRotation(camAngles);
-
-		// Pour éviter que le curseur ne sorte de l'écran, nous le renvoyons au centre de la fenétre
-		// Cette fonction est codée de sorte à ne pas provoquer d'événement MouseMoved
-		Nz::Vector2ui size = window.GetSize();
-		Nz::Mouse::SetPosition(size.x / 2, size.y / 2, window);
 	});
 
 	eventHandler.OnKeyPressed.Connect([&targetPos, &cameraNode, &smoothMovement, &window](const Nz::EventHandler*, const Nz::WindowEvent::KeyEvent& event)

include/Nazara/Platform/Mouse.hpp

@@ -37,6 +37,7 @@ namespace Nz
 			static Vector2i GetPosition();
 			static Vector2i GetPosition(const Window& relativeTo);
 			static bool IsButtonPressed(Button button);
+			static bool SetRelativeMouseMode(bool relativeMouseMode);
 			static void SetPosition(const Vector2i& position);
 			static void SetPosition(const Vector2i& position, const Window& relativeTo, bool ignoreEvent = true);
 			static void SetPosition(int x, int y);

src/Nazara/Platform/Mouse.cpp

@@ -34,6 +34,11 @@ namespace Nz
 		return EventImpl::IsMouseButtonPressed(button);
 	}
 
+	bool Mouse::SetRelativeMouseMode(bool relativeMouseMode)
+	{
+		return EventImpl::SetRelativeMouseMode(relativeMouseMode);
+	}
+
 	void Mouse::SetPosition(const Vector2i& position)
 	{
 		EventImpl::SetMousePosition(position.x, position.y);

src/Nazara/Platform/SDL2/InputImpl.cpp

@@ -85,6 +85,11 @@ namespace Nz
 		return (SDL_GetGlobalMouseState(nullptr, nullptr) & vButtons[button]) != 0;
 	}
 
+	bool EventImpl::SetRelativeMouseMode(bool relativeMouseMode)
+	{
+		return SDL_SetRelativeMouseMode((relativeMouseMode) ? SDL_TRUE : SDL_FALSE) == 0;
+	}
+
 	void EventImpl::SetMousePosition(int x, int y)
 	{
 		if (SDL_WarpMouseGlobal(x, y) != 0)

src/Nazara/Platform/SDL2/InputImpl.hpp

@@ -24,6 +24,7 @@ namespace Nz
 			static bool IsKeyPressed(Keyboard::Scancode key);
 			static bool IsKeyPressed(Keyboard::VKey key);
 			static bool IsMouseButtonPressed(Mouse::Button button);
+			static bool SetRelativeMouseMode(bool relativeMouseMode);
 			static void SetMousePosition(int x, int y);
 			static void SetMousePosition(int x, int y, const Window& relativeTo);
 			static void StartTextInput();