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|
-module(btl_turn_actions_move).
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% TYPES %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% EXPORTS %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-export
(
[
handle/2
]
).
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% LOCAL FUNCTIONS %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-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 =
array:foldl
(
fun (IX, Char, Prev) ->
IsAlive = btl_character:get_is_alive(Char),
if
(IX == CharacterIX) -> Prev;
(not IsAlive) -> Prev;
true -> [btl_character:get_location(Char)|Prev]
end
end,
[],
btl_battle:get_characters(Battle)
),
{NewLocation, Cost} =
btl_movement: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) ->
Character = btl_character_turn_data:get_character(Data),
CharacterStatistics = btl_character:get_statistics(Character),
CharacterMovementPoints =
shr_statistics:get_movement_points(CharacterStatistics),
true = (Cost =< CharacterMovementPoints),
ok.
-spec commit_move
(
btl_character_turn_update:type(),
list(btl_direction:type()),
btl_location:type()
)
-> btl_character_turn_update:type().
commit_move (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),
UpdatedData = btl_character_turn_data:set_character(UpdatedCharacter, Data),
TimelineItem =
btl_turn_result:new_character_moved(CharacterIX, Path, NewLocation),
DBQuery =
shr_db_query:update_indexed
(
btl_battle:get_characters_field(),
CharacterIX,
[
shr_db_query:set_field
(
btl_character:get_location_field(),
NewLocation
)
]
),
S0Update =
btl_character_turn_update:add_to_timeline
(
TimelineItem,
DBQuery,
Update
),
btl_character_turn_update:set_data(UpdatedData, S0Update).
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% 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),
Path = btl_battle_action:get_path(BattleAction),
{PathCost, NewLocation} = get_path_cost_and_destination(Data, Path),
assert_character_can_move(Data, PathCost),
commit_move(Update, Path, NewLocation).
|
