Added pause menu opening and closing animation

#7

1 files changed, 23 insertions, 0 deletions

@@ -2,6 +2,7 @@
 #define MENU_SYSTEM_H_205861EC
 
 #include "system.h"
+#include "interpolation.h"
 
 class Game;
 
@@ -12,9 +13,31 @@ public:
 
   explicit MenuSystem(Game& game) : game_(game) {}
 
+  void tick(double dt) override;
+
+  // Commands
+
+  void openPauseMenu();
+
+  void closePauseMenu();
+
+  // Info
+
+  double getPauseAnimationProgress() const { return pauseAnimation_.getProgress(); }
+
+  bool isMenuOpen() const { return openState_ == OpenState::Open; }
+
 private:
 
+  enum class OpenState {
+    Closed,
+    Animating,
+    Open
+  };
+
   Game& game_;
+  Interpolation pauseAnimation_;
+  OpenState openState_ = OpenState::Closed;
 };
 
 #endif /* end of include guard: MENU_SYSTEM_H_205861EC */