1 files changed, 94 insertions, 0 deletions
diff --git a/src/io/database_shim.erl b/src/io/database_shim.erl
new file mode 100644
index 0000000..243051b
--- /dev/null
+++ b/src/io/database_shim.erl
@@ -0,0 +1,94 @@
+-module(database_shim).
+-export
+(
+   [
+      generate_db/1,
+      fetch/2,
+      commit/3
+   ]
+).
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% LOCAL %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+create_db (_Heir) ->
+   ets:new
+   (
+      db_shim,
+      [
+         set,
+         public,
+         named_table,
+         {keypos, 1},
+         {read_concurrency, true}
+      ]
+   ),
+   io:format("~ndb_shim ets created.~n").
+
+add_to_db (ID, Val) ->
+   io:format("~nadd to db_shim: ~p.~n", [{ID, Val}]),
+   ets:insert(db_shim, {ID, Val}).
+
+generate_char_instances (Battlemap, Characters) ->
+   lists:map
+   (
+      fun (Char) ->
+         {
+            character:get_id(Char),
+            character_instance:new_instance_of
+            (
+               Char,
+               (rand:uniform(2) - 1), % team,
+               {
+                  rand:uniform(battlemap:get_width(Battlemap) - 1), % X
+                  rand:uniform(battlemap:get_heigth(Battlemap) - 1)  % Y
+               }
+            )
+         }
+      end,
+      Characters
+   ).
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% EXPORTED %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+generate_db (Heir) ->
+   Pid = self(),
+   spawn(fun () -> create_db(Heir), Pid ! ok, receive ok -> ok end end),
+   receive
+      ok -> ok
+   end,
+   Players = [<<"0">>, <<"1">>],
+   Battlemap = battlemap_shim:generate_random(),
+   Characters = character_shim:generate_random(rand:uniform(12) + 4),
+   CharacterInsts = generate_char_instances(Battlemap, Characters),
+   BattlemapInstance =
+      battlemap_instance_shim:generate_random
+      (
+         CharacterInsts,
+         Players
+      ),
+   add_to_db({battlemap_db, battlemap:get_id(Battlemap)}, Battlemap),
+   lists:map
+   (
+      fun (Char) ->
+         add_to_db({character_db, character:get_id(Char)}, Char)
+      end,
+      Characters
+   ),
+   add_to_db
+   (
+      {battlemap_instance_db, battlemap_instance:get_id(BattlemapInstance)},
+      BattlemapInstance
+   ).
+
+fetch (DB, ObjectID) ->
+   io:format("~ndb_shim lookup: ~p.~n", [{DB, ObjectID}]),
+   case ets:lookup(db_shim, {DB, ObjectID}) of
+      [{_Key, Value}] -> {ok, Value};
+      [] -> nothing
+   end.
+
+commit (DB, ObjectID, Value) ->
+   add_to_db({DB, ObjectID}, Value),
+   timed_cache:invalidate(DB, ObjectID).