Update gamescreen.h

Library/gamescreen.h

@@ -16,8 +16,15 @@ public:
     ~gamescreen();
 
 private slots:
-    void on_Leftbutton_clicked();
-    void on_Rightbutton_clicked();
+
+
+    void on_Rightbutton_pressed();
+
+    void on_Rightbutton_released();
+
+    void on_Leftbutton_pressed();
+
+    void on_Leftbutton_released();
 
 private:
     Ui::gamescreen *ui;