Added Mouse scroll as axis.

src/input/input.cpp

@@ -72,6 +72,7 @@ InputDeviceInternal* InputDeviceInternal::CreateStandardMouse()
 
     mouse->AddAxis("X");
     mouse->AddAxis("Y");
+    mouse->AddAxis("Scroll");
 
     mouse->AddCursor("Cursor");
 

src/input/input.h

@@ -100,11 +100,11 @@ private:
     static Array<InputDevice*> devices;
 
     template <typename T>
-    int GetItemIndex(const char* name, const Array<String, T>& Array) const
+    int GetItemIndex(const char* name, const Array<String, T>& array) const
     {
-        for (int i = 0; i < Array.Count(); ++i)
+        for (int i = 0; i < array.Count(); ++i)
         {
-            if (Array[i] == name)
+            if (array[i] == name)
                 return i;
         }
         return -1;

src/platform/sdl/sdlinput.cpp

@@ -179,6 +179,8 @@ void SdlInputData::Tick(float seconds)
     }
 #   endif
 
+    m_mouse->SetAxis(2, 0);
+
     /* Handle keyboard and WM events */
     SDL_Event event;
     while (SDL_PollEvent(&event))
@@ -199,6 +201,8 @@ void SdlInputData::Tick(float seconds)
         {
             if (event.button.button != SDL_BUTTON_WHEELUP && event.button.button != SDL_BUTTON_WHEELDOWN)
                 m_mouse->SetKey(event.button.button - 1, event.type == SDL_MOUSEBUTTONDOWN);
+            else
+                m_mouse->SetAxis(2, (event.button.button != SDL_BUTTON_WHEELUP) ? (1) : (-1));
             // TODO: mouse wheel as axis
             break;
         }