/**
  * Update the specified resource in storage.
  *
  * @param  int  $id
  * @return Response
  */
 public function update($id, Request $request)
 {
     $population = Population::find($id);
     $population->gold = $request->input('gold');
     $population->wood = $request->input('wood');
     $population->stone = $request->input('stone');
     $population->food = $request->input('food');
     $population->silver = $request->input('silver');
     $population->platinum = $request->input('platinum');
     $population->save();
 }