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|
-module(database_shim).
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% TYPES %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% EXPORTS %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-export
(
[
generate_db/0,
fetch/2,
commit/1
]
).
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% LOCAL FUNCTIONS %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
get_db_node () ->
list_to_atom("db_node@" ++ net_adm:localhost()).
-spec generate_random_characters
(
non_neg_integer(),
non_neg_integer(),
non_neg_integer(),
non_neg_integer(),
battlemap:type(),
list(location:type()),
list(character:type())
)
-> list(character:type()).
generate_random_characters
(
0,
0,
_CharactersPerPlayer,
_TotalCharacterCount,
_Battlemap,
_ForbiddenLocations,
Result
) ->
Result;
generate_random_characters
(
MaxPlayerID,
0,
CharactersPerPlayer,
TotalCharacterCount,
Battlemap,
ForbiddenLocations,
Result
) ->
generate_random_characters
(
(MaxPlayerID - 1),
CharactersPerPlayer,
CharactersPerPlayer,
TotalCharacterCount,
Battlemap,
ForbiddenLocations,
Result
);
generate_random_characters
(
MaxPlayerID,
PlayerCharacterCount,
CharactersPerPlayer,
TotalCharacterCount,
Battlemap,
ForbiddenLocations,
Result
) ->
NewCharacter =
character:random
(
TotalCharacterCount,
list_to_binary(integer_to_list(MaxPlayerID)),
battlemap:get_width(Battlemap),
battlemap:get_height(Battlemap),
ForbiddenLocations
),
Character =
case MaxPlayerID of
0 -> character:set_is_active(true, NewCharacter);
_ -> NewCharacter
end,
generate_random_characters
(
MaxPlayerID,
(PlayerCharacterCount - 1),
CharactersPerPlayer,
(TotalCharacterCount + 1),
Battlemap,
[character:get_location(Character)|ForbiddenLocations],
[Character|Result]
).
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% EXPORTED FUNCTIONS %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-spec generate_db () -> 'ok'.
generate_db () ->
BattlemapWidth = roll:between(16, 64),
BattlemapHeight = roll:between(16, 64),
Battlemap = battlemap:random(0, BattlemapWidth, BattlemapHeight),
Characters = generate_random_characters(1, 8, 8, 0, Battlemap, [], []),
PlayersAsList = [player:new(<<"0">>), player:new(<<"1">>)],
Battle = battle:new(<<"0">>, PlayersAsList, Battlemap, Characters),
{atomic, ok} =
rpc:call
(
get_db_node(),
storage_access,
insert,
[battle_db, <<"0">>, any, Battle]
),
ok.
-spec fetch (atom(), any()) -> ({'ok', any()} | 'not_found').
fetch (DB, ObjectID) ->
{atomic, Reply} =
rpc:call(get_db_node(), storage_access, read, [DB, ObjectID]),
io:format("~ndb_shim:fetch(~p) -> ~p.~n", [{DB, ObjectID}, Reply]),
Reply.
-spec commit (db_query:type()) -> 'ok'.
commit (Query) ->
{atomic, ok} = rpc:call(get_db_node(), storage_access, query, [Query]),
io:format("~ndb_shim:commit(~p) -> ok.~n", [Query]),
ok.
|
