1 files changed, 5 insertions, 1 deletions
diff --git a/src/renderer.h b/src/renderer.h
index b76b831..36f64bc 100644
--- a/src/renderer.h
+++ b/src/renderer.h
@@ -1,3 +1,5 @@
+#ifndef RENDERER_H
+#define RENDERER_H
 #include <SDL2/SDL.h>
 
 class Renderer{
@@ -9,7 +11,9 @@ class Renderer{
         void clear();
         void update();
         SDL_Renderer* renderer();
-        void setScale(int scaleX, int scaleY);
+        void setScale(float scaleX, float scaleY);
     private:
         SDL_Renderer* renderer_;
 };
+
+#endif