input: fix a very old bug in input handling that would miss some keys.

src/ui/input.cpp

@@ -93,7 +93,7 @@ void InputDeviceInternal::AddKey(int index, const char* name)
 
     while (index >= (int)m_key_names.size())
     {
-        m_key_names.push_back(name);
+        m_key_names.push_back("");
         m_keys.push_back(false);
     }
 
@@ -107,7 +107,7 @@ void InputDeviceInternal::AddAxis(int index, const char* name, float sensitivity
 
     while (index >= (int)m_axis_names.size())
     {
-        m_axis_names.push_back(name);
+        m_axis_names.push_back("");
         m_axis.push(0.0f, 1.0f);
     }
 
@@ -123,7 +123,7 @@ void InputDeviceInternal::AddCursor(int index, const char* name)
 
     while (index >= (int)m_cursor_names.size())
     {
-        m_cursor_names.push_back(name);
+        m_cursor_names.push_back("");
         m_cursors.push(vec2::zero, ivec2::zero);
     }
 

src/ui/keys.inc

@@ -22,7 +22,6 @@ _SC(0, "", Unknown)
 
 /* Usage page 0x07 */
 
-_SC(3,  "", Whatever) // FIXME: if this isn’t here, we can’t bind key A; WTF?
 _SC(4,  "A", A)
 _SC(5,  "B", B)
 _SC(6,  "C", C)