In case of a tie, winner is decided on a coin flip

[TheoPannetier]

Depends

• The largest player wins the game #721

Context

If two or more players have the same size by the end of the game, the winner should be decided on a coin flip amongst them.

Test

  #ifdef FIX_ISSUE_722
  // (722) In case of a tie, winner is decided on a coin flip
  {
      const int a_seed = 5;
      const int another_seed = 6; // change if this picks the same winner

      game a_game(game_options{a_seed});
      player &player_two = a_game.get_player(1);
      player_two.grow();
      player &player_three = a_game.get_player(2);
      player_three.grow();
      assert(a_game.who_is_winning() != 0);

      game another_game(game_options{another_seed});
      player &other_player_two = another_game.get_player(1);
      other_player_two.grow();
      player &other_player_three = another_game.get_player(2);
      other_player_three.grow();
      assert(another_game.who_is_winning() != 0);

      assert(a_game.who_is_winning != another_game.who_is_winning());
  }
  #endif // FIX_ISSUE_722