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-module(bm_player_turn).
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% TYPES %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-record
(
player_turn,
{
number :: non_neg_integer(),
player_ix :: non_neg_integer()
}
).
-opaque type() :: #player_turn{}.
-export_type([type/0]).
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% EXPORTS %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-export
(
[
new/2,
next/2
]
).
%%%% Accessors
-export
(
[
get_number/1,
get_player_ix/1
]
).
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% LOCAL FUNCTIONS %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% EXPORTED FUNCTIONS %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%% Accessors
-spec new (non_neg_integer(), non_neg_integer()) -> type().
new (Number, PlayerIX) ->
#player_turn
{
number = Number,
player_ix = PlayerIX
}.
-spec get_number (type()) -> non_neg_integer().
get_number (PlayerTurn) -> PlayerTurn#player_turn.number.
-spec get_player_ix (type()) -> non_neg_integer().
get_player_ix (PlayerTurn) -> PlayerTurn#player_turn.player_ix.
-spec next (non_neg_integer(), type()) -> type().
next (PlayersCount, CurrentPlayerTurn) ->
CurrentPlayerIX = CurrentPlayerTurn#player_turn.player_ix,
CurrentTurnNumber = CurrentPlayerTurn#player_turn.number,
NextPlayerIX = ((CurrentPlayerIX + 1) rem PlayersCount),
NextTurnNumber =
case NextPlayerIX of
0 -> (CurrentTurnNumber + 1);
_ -> CurrentTurnNumber
end,
new(NextTurnNumber, NextPlayerIX).
|
