Add flipped animations ftw

1 files changed, 23 insertions, 2 deletions

diff --git a/src/graphics/animation.h b/src/graphics/animation.h
index 010a64a..583da8a 100644
--- a/src/graphics/animation.h
+++ b/src/graphics/animation.h
@@ -24,12 +24,19 @@ namespace Graphics{
             virtual sf::IntRect& next(int deltaTime);
             virtual void reset();
             virtual bool finished();
+            static sf::Sprite& flip(sf::Sprite &sprite){
+                sf::IntRect frame = sprite.getTextureRect();
+                frame.left += frame.width;
+                frame.width *= -1;
+                sprite.setTextureRect(frame);
+                return sprite;
+            };
     };
 
     class OneShotAnimation : public Animation {
         public:
             using Animation::Animation;
-            sf::IntRect& next(int deltaTime) override;
+            virtual sf::IntRect& next(int deltaTime) override;
             bool finished() override;
     };
 
@@ -39,7 +46,21 @@ namespace Graphics{
         public:
             using Animation::Animation;
             ~BouncingAnimation();
-            sf::IntRect& next(int deltaTime) override;
+            virtual sf::IntRect& next(int deltaTime) override;
+    };
+
+    template <class T>
+    class FlippedAnimation : public T{
+        static_assert(std::is_base_of<Animation, T>::value,
+                "Base class of FlippedAnimation is not an Animation");
+        public:
+            using T::T;
+            sf::IntRect& next(int deltaTime) override{
+                T::next(deltaTime);
+                T::rect_.left = (T::i_ + 1) * T::w_;
+                T::rect_.width = -T::w_;
+                return T::rect_;
+        }
     };
 }
 #endif // GRAPHICS_ANIMATION_H