1 files changed, 73 insertions, 0 deletions
diff --git a/src/battlemap/struct/bm_player_turn.erl b/src/battlemap/struct/bm_player_turn.erl
new file mode 100644
index 0000000..5f2c074
--- /dev/null
+++ b/src/battlemap/struct/bm_player_turn.erl
@@ -0,0 +1,73 @@
+-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).