Open database once update
This commit is contained in:
dogcatfee
parent
2c8bc7aff9
commit
b41035fac7
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@ -1,4 +1,3 @@
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*.js linguist-vendored
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*.css linguist-vendored
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*.scss linguist-vendored=false
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*.scss linguist-vendored=false
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97
src/Go.cr
97
src/Go.cr
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@ -9,19 +9,20 @@ URL = "localhost"
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PORT = "3000"
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GAME_CACHE = {} of String => Go::Game
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GAME_SAVE = "./game_saves.db"
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GAME_DB = DB.open "sqlite3:./#{GAME_SAVE}"
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def save_game(db, gameid, game)
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# Function: save_game
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# Parameters: db(String)[Unused] gameid(String) game(Go::Game)
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# Parameters: db(Sqlite) gameid(String) game(Go::Game)
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# Returns: None
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turn, size, white_pass, black_pass, board = game.encode
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DB.open "sqlite3:./#{GAME_SAVE}" do |db|
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# Create table if one does not exist, gameid is UNIQUE => No duplicates
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db.exec "create table if not exists game_saves (gameid string, turn integer, size integer, white_pass string, black_pass string, time string, board string, UNIQUE(gameid) )"
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# If duplicate => replace values, else => make new row for gameid
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db.exec "insert or replace into game_saves values (?, ?, ?, ?, ?, ?, ?)",
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gameid, turn.value, size, white_pass, black_pass, Time.now.to_json, board
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end
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# Create table if one does not exist, gameid is UNIQUE => No duplicates
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db.exec "create table if not exists game_saves (
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gameid string, turn integer, size integer, white_pass string,
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black_pass string, time string, board string, UNIQUE(gameid) )"
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# If duplicate => replace values, else => make new row for gameid
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db.exec "insert or replace into game_saves values (?, ?, ?, ?, ?, ?, ?)",
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gameid, turn.value, size, white_pass, black_pass, Time.now.to_json, board
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end
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def save_all(cache)
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@ -30,33 +31,33 @@ def save_all(cache)
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# Returns: None
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cache.each do |game_hash|
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gameid, game = game_hash
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save_game("none", gameid, game)
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save_game(GAME_DB, gameid, game)
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end
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end
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def query_game(db, gameid) : Go::Game?
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# Function: query_game
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# Parameters: db(String)[Unused] gameid(String)
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# Parameters: db(Sqlite) gameid(String)
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# Returns: (Go::Game) for a given gameid
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turn = 0
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size = Go::Size::Small
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turn = 0
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size = 9
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white_pass = ""
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black_pass = ""
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board = ""
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begin
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DB.open "sqlite3:./#{GAME_SAVE}" do |db|
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# Query whole row where the gameid is found
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db.query "SELECT turn,size,white_pass,black_pass,board FROM game_saves WHERE gameid = ?", gameid do |rs|
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rs.each do
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#id = rs.read(String) # Reduntant
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turn = rs.read(Int32)
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size = rs.read(Int32)
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white_pass = rs.read(String)
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black_pass = rs.read(String)
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board = rs.read(String)
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end
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# Query whole row where the gameid is found
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db.query "SELECT turn,size,white_pass,black_pass,board FROM game_saves WHERE gameid = ?", gameid do |rs|
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rs.each do
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turn = rs.read(Int32)
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size = rs.read(Int32)
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white_pass = rs.read(String)
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black_pass = rs.read(String)
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board = rs.read(String)
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end
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end
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if ( board == "" )
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return nil
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end
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# New Go::Game object
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game = Go::Game.new()
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game.size = Go::Size.from_value(size)
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@ -79,40 +80,37 @@ def query_game(db, gameid) : Go::Game?
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end
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rescue
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# Catch bad query
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# puts "DB query Failed"
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return nil
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end
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# Finished Go::Game object to return
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return game
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end
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def game_cleaner(cache)
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def game_cleaner(db, cache)
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# Function: game_cleaner
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# Parameters: cache({(String),(Go::Game)})
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# Parameters: db(Sqlite) cache({(String),(Go::Game)})
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# Returns: None
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# Description: Cleans the database and memory of games older than 24 hours, every 2 hours
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spawn do
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loop do
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gameid = ""
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ntime = Time.now()
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DB.open "sqlite3:./#{GAME_SAVE}" do |db|
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# Time span, for the subtraction of two time objects
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tspan = Time::Span.new(0,0,0)
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db.query "SELECT time, gameid FROM game_saves" do |rs|
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rs.each do
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stime = Time.from_json(rs.read(String))
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gameid = rs.read(String)
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tspan = ntime - stime
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end
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end
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if( tspan.hours > 24 || tspan.days > 0 )
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# Delete game from database
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db.exec("DELETE FROM game_saves WHERE gameid = ?", gameid)
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# Delete game from memory
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cache.delete(gameid)
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puts "Game: #{gameid} deleted due to inactivity"
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# Time span, for the subtraction of two time objects
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tspan = Time::Span.new(0,0,0)
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db.query "SELECT time, gameid FROM game_saves" do |rs|
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rs.each do
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stime = Time.from_json(rs.read(String))
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gameid = rs.read(String)
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tspan = ntime - stime
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end
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end
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if( tspan.hours > 24 || tspan.days > 0 )
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# Delete game from database
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db.exec("DELETE FROM game_saves WHERE gameid = ?", gameid)
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# Delete game from memory
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cache.delete(gameid)
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puts "Game: #{gameid} deleted due to inactivity"
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end
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sleep 2.hour
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end
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end
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@ -120,7 +118,7 @@ end
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def lookup_game(db, cache, id) : Go::Game?
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# Function: lookup_game
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# Parameters: db(String)[Unused] cache({(String), (Go::Game)}) id(String)
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# Parameters: db(Sqlite) cache({(String), (Go::Game)}) id(String)
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# Returns: None
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# Description: Loads game data from memory, then attempts load from database
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if game = cache[id]?
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@ -135,7 +133,7 @@ end
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def create_game(db, cache, game, id)
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# Function: create_game
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# Parameters: db(String)[Unused] cache({(String), (Go::Game)}) game(Go::Game) id(String)
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# Parameters: db(Sqlite) cache({(String), (Go::Game)}) game(Go::Game) id(String)
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# Returns: None
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cache[id] = game
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end
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@ -154,9 +152,8 @@ def handle_message(id, game, socket, message)
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game.update(x, y, color)
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game.sockets.each { |socket| socket.send game.to_json }
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# If saving game on move
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save_game("none", id, game)
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save_game(GAME_DB, id, game)
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end
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end
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@ -169,7 +166,7 @@ post "/game" do |env|
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game_password = env.params.body["password"]?
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if game_id == nil || game_password == nil
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render_404
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elsif game = lookup_game(nil, GAME_CACHE, game_id)
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elsif game = lookup_game(GAME_DB, GAME_CACHE, game_id)
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id = game_id
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size = game.size.value
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black = nil
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@ -201,7 +198,7 @@ post "/create" do |env|
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if game_id == nil || user_password == nil || other_password == nil || color == nil || color_e == nil
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render_404
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elsif game = lookup_game(nil, GAME_CACHE, game_id)
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elsif game = lookup_game(GAME_DB, GAME_CACHE, game_id)
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render_404
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else
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color_e = color_e.as(Go::Color)
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@ -224,7 +221,7 @@ end
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ws "/game/:id" do |socket, env|
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game_id = env.params.url["id"]
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if game = lookup_game(nil, GAME_CACHE, game_id)
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if game = lookup_game(GAME_DB, GAME_CACHE, game_id)
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socket.send game.to_json
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game.sockets << socket
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@ -247,7 +244,7 @@ end
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# save_all(GAME_CACHE)
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# end
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# end
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game_cleaner(GAME_CACHE)
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game_cleaner(GAME_DB, GAME_CACHE)
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Kemal.run
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# If exit is disabled in kemal.stop
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# For save on close
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