Cleaning up a bit...

1 files changed, 186 insertions, 0 deletions

diff --git a/src/battle/mechanic/turn_action/btl_turn_actions_move.erl b/src/battle/mechanic/turn_action/btl_turn_actions_move.erl
new file mode 100644
index 0000000..bf023d5
--- /dev/null
+++ b/src/battle/mechanic/turn_action/btl_turn_actions_move.erl
@@ -0,0 +1,186 @@
+-module(btl_turn_actions_move).
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% TYPES %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% EXPORTS %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+-export
+(
+   [
+      handle/2
+   ]
+).
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% LOCAL FUNCTIONS %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+-spec cross
+   (
+      btl_map:type(),
+      list(btl_location:type()),
+      list(btl_direction:enum()),
+      non_neg_integer(),
+      btl_location:type()
+   )
+   -> {btl_location:type(), non_neg_integer()}.
+cross (_Map, _ForbiddenLocations, [], Cost, Location) ->
+   {Location, Cost};
+cross (Map, ForbiddenLocations, [Step|NextSteps], Cost, Location) ->
+   NextLocation = btl_location:apply_direction(Step, Location),
+   NextTileInstance = btl_map:get_tile_instance(NextLocation, Map),
+   NextTileClassID = shr_tile:extract_main_class_id(NextTileInstance),
+   NextTile = shr_tile:from_class_id(NextTileClassID),
+   NextCost = (Cost + shr_tile:get_cost(NextTile)),
+   IsForbidden =
+      lists:foldl
+      (
+         fun (ForbiddenLocation, Prev) ->
+            (Prev or (NextLocation == ForbiddenLocation))
+         end,
+         false,
+         ForbiddenLocations
+      ),
+
+   IsForbidden = false,
+
+   cross(Map, ForbiddenLocations, NextSteps, NextCost, NextLocation).
+
+-spec cross
+   (
+      btl_map:type(),
+      list(btl_location:type()),
+      list(btl_direction:enum()),
+      btl_location:type()
+   )
+   -> {btl_location:type(), non_neg_integer()}.
+cross (Map, ForbiddenLocations, Path, Location) ->
+   cross(Map, ForbiddenLocations, Path, 0, Location).
+
+-spec get_path_cost_and_destination
+   (
+      btl_character_turn_data:type(),
+      list(btl_direction:type())
+   )
+   -> {non_neg_integer(), btl_location:type()}.
+get_path_cost_and_destination (Data, Path) ->
+   Character = btl_character_turn_data:get_character(Data),
+   CharacterIX = btl_character_turn_data:get_character_ix(Data),
+   Battle = btl_character_turn_data:get_battle(Data),
+   Map = btl_battle:get_map(Battle),
+
+   ForbiddenLocations =
+      orddict:fold
+      (
+         fun (IX, Char, Prev) ->
+            IsAlive = btl_character:get_is_alive(Char),
+            if
+               (IX == CharacterIX) -> Prev;
+               (not IsAlive) -> Prev;
+               true ->
+                  ordsets:add_element(btl_character:get_location(Char), Prev)
+            end
+         end,
+         ordsets:new(),
+         btl_battle:get_characters(Battle)
+      ),
+
+   {NewLocation, Cost} =
+      cross
+      (
+         Map,
+         ForbiddenLocations,
+         Path,
+         btl_character:get_location(Character)
+      ),
+
+   {Cost, NewLocation}.
+
+-spec assert_character_can_move
+   (
+      btl_character_turn_data:type(),
+      non_neg_integer()
+   )
+   -> 'ok'.
+assert_character_can_move (Data, Cost) ->
+   CharacterData = btl_character_turn_data:get_character_current_data(Data),
+   CharacterStats= btl_character_current_data:get_statistics(CharacterData),
+   CharacterMovementPoints = shr_statistics:get_movement_points(CharacterStats),
+
+   true = (Cost =< CharacterMovementPoints),
+
+   ok.
+
+-spec commit_move
+   (
+      btl_character_current_data:type(),
+      btl_character_turn_update:type(),
+      list(btl_direction:type()),
+      btl_location:type()
+   )
+   -> btl_character_turn_update:type().
+commit_move (PreviousCurrentData, Update, Path, NewLocation) ->
+   Data = btl_character_turn_update:get_data(Update),
+   Character = btl_character_turn_data:get_character(Data),
+   CharacterIX = btl_character_turn_data:get_character_ix(Data),
+
+   UpdatedCharacter = btl_character:set_location(NewLocation, Character),
+   S0Data = btl_character_turn_data:set_character(UpdatedCharacter, Data),
+   S1Data = btl_character_turn_data:refresh_character_current_data(S0Data),
+
+   S0Update = btl_character_turn_update:set_data(S1Data, Update),
+   S1Update =
+      btl_turn_actions_stats_change:handle_max_health_changes
+      (
+         PreviousCurrentData,
+         S0Update
+      ),
+
+   TimelineItem =
+      btl_turn_result:new_character_moved(CharacterIX, Path, NewLocation),
+
+   DBQuery =
+      ataxic:update_field
+      (
+         btl_battle:get_characters_field(),
+         ataxic_sugar:update_orddict_element
+         (
+            CharacterIX,
+            ataxic:update_field
+            (
+               btl_character:get_location_field(),
+               ataxic:constant(NewLocation)
+            )
+         )
+      ),
+
+   S2Update =
+      btl_character_turn_update:add_to_timeline
+      (
+         TimelineItem,
+         DBQuery,
+         S1Update
+      ),
+
+   S2Update.
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% EXPORTED FUNCTIONS %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+-spec handle
+   (
+      btl_battle_action:type(),
+      btl_character_turn_update:type()
+   )
+   -> btl_character_turn_update:type().
+handle (BattleAction, Update) ->
+   Data = btl_character_turn_update:get_data(Update),
+   CharacterCurrentData =
+      btl_character_turn_data:get_character_current_data(Data),
+   Path = btl_battle_action:get_path(BattleAction),
+
+   {PathCost, NewLocation} = get_path_cost_and_destination(Data, Path),
+   assert_character_can_move(Data, PathCost),
+
+   commit_move(CharacterCurrentData, Update, Path, NewLocation).