Hello everyone!
A have a few questions about google play game services extension.
I want to save highscore in the google cloud so, if the user decides to uninstall the game and then download it later, he doesn’t lose the data. My question : do I need to use snapshots for that?
local use_saved_games = sys.get_config("gpgs.use_saved_games") == "1"
function callback(self, message_id, message)
print(message_id)
pprint(message)
if message_id == gpgs.MSG_SIGN_IN or message_id == gpgs.MSG_SILENT_SIGN_IN then
if message.status == gpgs.STATUS_SUCCESS then
print("Good")
end
end
end
function init(self)
msg.post(".", "acquire_input_focus")
if gpgs then
gpgs.silent_login()
gpgs.set_callback(callback)
gpgs.set_popup_position(gpgs.POPUP_POS_TOP_CENTER)
end
end
function update(self, dt)
if gpgs then
if self.is_logged_in ~= gpgs.is_logged_in() then
self.is_logged_in = gpgs.is_logged_in()
end
end
end
function final(self)
if gpgs then
gpgs.logout()
end
end
Yes, you should use snapshot functionality for that.
Also, it should be possible to use leaderboards for that reason (if you want to save only player’s scores), but we don’t have this feature in our plugin yet.
If silent Sign-in is failed you should request regular Sign-in. Usually, a user has to sign-in once before you can use Silent Sign-in.
Thank you AGulev and britzl for you answers.
So after I changed gpgs.silent_login() to gpgs.login() it worked! So if I want to use silent_login() instead of login(), should I make just like :
if message.status == gpgs.STATUS_FAILED then
gpgs.login()
end
Or is there a better option to do this, if I want to use silent.login instead of regular login if its not the first time the user login?
You need to do the next steps (they are async, you can’t do it in a row):
gpgs.snapshot_open() -- open or create a save
gpgs.snapshot_get_data() -- get data from the currently opened save
gpgs.snapshot_set_data() -- set data into the currently opened save
gpgs.snapshot_commit_and_close() -- commit (save) data and close the currently opened save
Currently I am getting an error “Silent sign-in failed” and in my game I get google signing in loop. I know I get this loop because I made that if the silent sign-in fails, it tries to login using regular silent.login(). But I don’t know why my sign in fails? Currently I am bundling my game, and launching it on android device. Do I need to do something else for sign-in to work, or am I doing something completely wrong? My code :
local use_saved_games = sys.get_config("gpgs.use_saved_games") == "1"
function callback(self, message_id, message)
print(message_id)
pprint(message)
if message_id == gpgs.MSG_SIGN_IN or message_id == gpgs.MSG_SILENT_SIGN_IN then
if message.status == gpgs.STATUS_SUCCESS then
print("Good")
end
if message.status == gpgs.STATUS_FAILED then
gpgs.login()
end
if use_saved_games then
gpgs.snapshot_open("googledata", true, gpgs.RESOLUTION_POLICY_MANUAL)
end
if gpgs then
local bytes, error_message = gpgs.snapshot_get_data()
if not bytes then
print("snapshot_get_data ERROR:", error_message)
else
print("snapshot_get_data", bytes)
end
end
end
end
function init(self)
msg.post(".", "acquire_input_focus")
if gpgs then
gpgs.silent_login()
gpgs.set_callback(callback)
end
end
function update(self, dt)
if gpgs then
if self.is_logged_in ~= gpgs.is_logged_in() then
self.is_logged_in = gpgs.is_logged_in()
end
if use_saved_games then
if self.snapshot_is_opened ~= gpgs.snapshot_is_opened() then
self.snapshot_is_opened = gpgs.snapshot_is_opened()
end
end
end
end
function on_message(self, message_id, message, sender)
if message_id == hash("set_data") then
if gpgs then
local success, error_message = gpgs.snapshot_set_data("googledata")
if not success then
print("snapshot_set_data ERROR:", error_message)
end
end
end
end
function final(self)
if gpgs then
gpgs.snapshot_commit_and_close()
end
if gpgs then
gpgs.logout()
end
end
To avoid this loop you should process gpgs.MSG_SIGN_IN and gpgs.MSG_SILENT_SIGN_IN messages separately.
Yes, check this section step by step once again:
Google App Setup
In order to use Google Play Game Services your application needs to be added to the Google Play store. It doesn’t have to be published but it must be registered. Read more about how to sign up for and use the Google Play store in the official documentation.
Once the application is registered you also need to enable Google Play Game Services for the application. Follow the official documentation to enable Google Play Game Services.
If something wrong with Google Console settings GPGS should notify you in logcat when you make initialization with instructions on how to fix your problem.
Thank you AGulev for helping me!
It worked!! What I did was : change bundle from debug to release and use the certificate and keys that I used for publishing my game to app stores. I always tested it with debug bundle and no certificate and keys!
Now I test if snapshots work (install game, set new highscore, uninstall game, check if the highscore is previous one). But it doesn’t work
Logcat : http://prntscr.com/qjajwo
gpgs script file :
local use_saved_games = sys.get_config("gpgs.use_saved_games") == "1"
function callback(self, message_id, message)
print(message_id)
pprint(message)
if message_id == gpgs.MSG_SIGN_IN or message_id == gpgs.MSG_SILENT_SIGN_IN then
if message.status == gpgs.STATUS_SUCCESS then
end
if message.status == gpgs.STATUS_FAILED then
gpgs.login()
end
if use_saved_games then
gpgs.snapshot_open("googledata", true, gpgs.RESOLUTION_POLICY_MANUAL)
end
end
end
function init(self)
msg.post(".", "acquire_input_focus")
if gpgs then
gpgs.set_callback(callback)
gpgs.silent_login()
end
if gpgs then
local bytes, error_message = gpgs.snapshot_get_data()
if not bytes then
print("snapshot_get_data ERROR:", error_message)
else
print("snapshot_get_data", bytes)
end
end
end
function update(self, dt)
if gpgs then
if self.is_logged_in ~= gpgs.is_logged_in() then
self.is_logged_in = gpgs.is_logged_in()
end
if use_saved_games then
if self.snapshot_is_opened ~= gpgs.snapshot_is_opened() then
self.snapshot_is_opened = gpgs.snapshot_is_opened()
end
end
end
end
function on_message(self, message_id, message, sender)
if message_id == hash("set_data") then -- lose screen sends this message in init
if gpgs then
local success, error_message = gpgs.snapshot_set_data("googledata")
if not success then
print("snapshot_set_data ERROR:", error_message)
end
end
end
end
function final(self)
if gpgs then
gpgs.snapshot_commit_and_close()
end
if gpgs then
gpgs.logout()
end
end
I have tried to move gpgs.snapshot_commit_and_close() near the save data, but then, after I lose my game crashes.
First of all, it’s not necessary to check gpgs.snapshot_is_opened() in update() method (In my example I did that only for the test reason). Instead, you are able to use gpgs.MSG_LOAD_SNAPSHOT.
I don’t know what you want to do, but final() will not be called when you close application.
It would be better to call this method when something happens in the game or every time you set data (but then you need to re-open your save if you want to use it one more time during the game session).
If it crashes, please provide the crash log.
function on_message(self, message_id, message, sender)
if message_id == hash("set_data") then
if gpgs then
local success, error_message = gpgs.snapshot_set_data("googledata")
if not success then
print("snapshot_set_data ERROR:", error_message)
end
end
if gpgs then
gpgs.snapshot_commit_and_close()
end
end
end
This is hard to take all these pieces of information and get the whole picture
Please, re-read the documentation and carefully check your logic.
One more time, how it should be (I didn’t check this code, sorry, it’s just an explanation):
local function open_snapshot()
gpgs.snapshot_open("googledata", true, gpgs.RESOLUTION_POLICY_MANUAL)
end
local function save_data(data)
local success, error_message = gpgs.snapshot_set_data(data)
if success then
gpgs.snapshot_commit_and_close({progressValue = get_progres_value()}) --would be better to set data for the automatic conflict solver
else
print("snapshot_set_data ERROR:", error_message)
end
end
local function callback(self, message_id, message)
if message_id == gpgs.MSG_SILENT_SIGN_IN then
if message.status == gpgs.STATUS_SUCCESS then
open_snapshot()
else
gpgs.login()
end
elseif message_id == gpgs.MSG_SIGN_IN then
if message.status == gpgs.STATUS_SUCCESS then
open_snapshot()
else
print("can't login")
end
elseif message_id == gpgs.MSG_LOAD_SNAPSHOT then
if message.status == gpgs.STATUS_SUCCESS then
local bytes, error_message = gpgs.snapshot_get_data()
if not bytes then
print("snapshot_get_data ERROR:", error_message)
else
self.my_save = bytes
print("snapshot_get_data", bytes)
-- if we have the not saved data, let's try to save it
if self.not_saved_data then
save_data(self.non_saved_data)
self.not_saved_data = nil
end
end
else -- a few more elseif
--error handler or conflict solver
end
end
end
function init()
if gpgs then
gpgs.set_callback(callback)
gpgs.silent_login()
end
end
function on_message(self, message_id, message, sender)
if message_id == hash("set_data") then
if gpgs then
if gpgs.snapshot_is_opened() then
save_data(message .data)
else
-- your snapshot has already closed (or wasn't open)
-- let's save your data locally in `self` and try to save it when the snapshot will be opened again
self.not_saved_data = message.data
open_snapshot()
end
end
end
end
And what causes this crash? : http://prntscr.com/qjcxe9
I get crash when I die in my game. Is it because I send msg.post(“controller:/gpgs#gpgs”, “set_data”) ?
