message: changing game_exists variable name to make the logic more clear
diff: @@ -93,8 +93,8 @@ namespace tic_tac_toe {
  // Check if game already exists
  game existing_game;
  - bool game_exists = Games::get(c.challenger, existing_game, c.host);
  - eosio_assert(game_exists == false, "game already exists");
  + bool game_does_not_exist = Games::get(c.challenger, existing_game, c.host);
  + eosio_assert(game_does_not_exist == false, "game already exists");
  game game_to_create(c.challenger, c.host);
  Games::store(game_to_create, c.host);
  @@ -109,8 +109,8 @@ namespace tic_tac_toe {
  // Check if game exists
  game game_to_restart;
  - bool game_exists = Games::get(r.challenger, game_to_restart, r.host);
  - eosio_assert(game_exists == true, "game doesn't exist!");
  + bool game_does_not_exist = Games::get(r.challenger, game_to_restart, r.host);
  + eosio_assert(game_does_not_exist, "game doesn't exist!");
  // Check if this game belongs to the action sender
  eosio_assert(r.by == game_to_restart.host || r.by == game_to_restart.challenger, "this is not your game!");
  @@ -130,8 +130,8 @@ namespace tic_tac_toe {
  // Check if game exists
  game game_to_close;
  - bool game_exists = Games::get(c.challenger, game_to_close, c.host);
  - eosio_assert(game_exists == true, "game doesn't exist!");
  + bool game_does_not_exist = Games::get(c.challenger, game_to_close, c.host);
  + eosio_assert(game_does_not_exist, "game doesn't exist!");
  Games::remove(game_to_close, game_to_close.host);
  }
  @@ -145,8 +145,8 @@ namespace tic_tac_toe {
  // Check if game exists
  game game_to_move;
  - bool game_exists = Games::get(m.challenger, game_to_move, m.host);
  - eosio_assert(game_exists == true, "game doesn't exist!");
  + bool game_does_not_exist = Games::get(m.challenger, game_to_move, m.host);
  + eosio_assert(game_does_not_exist, "game doesn't exist!");
  // Check if this game hasn't ended yet
  eosio_assert(game_to_move.winner == N(none), "the game has ended!");
  