public function game_start($id)
 {
     $game = \App\Models\Game::find($id);
     $players = \App\Models\Game_User::where('game_id', '=', $id)->get();
     $can_start = false;
     if ($game->min_players > $players->count()) {
         return redirect('games')->withWarning('Error, this game need more players to start.');
     }
     if ($game->started) {
         return redirect('games')->withWarning('Error, this game is already started.');
     }
     foreach ($players as $player) {
         if ($player->user_id == Auth::user()->id) {
             $can_start = true;
         }
     }
     $letters = \App\Models\Letter::all();
     \DB::transaction(function () use($letters, $id) {
         foreach ($letters as $letter) {
             $inventory = new \App\Models\Inventory_Letter_Game();
             $inventory->letter_id = $letter->id;
             $inventory->quantity = $letter->quantity;
             $inventory->game_id = $id;
             $inventory->save();
         }
     });
     $game->started = true;
     $game->save();
     \Event::fire(new \App\Events\GameStart($id));
     return redirect('gamejoin/' . $id);
 }