Can someone show me how to implement leaderboard with corona cloud? any tutorial?

rob · April 25, 2013, 1:21am

Try this:

[lua]

local function leaderboardsListener( event )
if ( event.type == “getScores” and event.error == nil ) then
local results = json.decode(event.response)

        for i = 1, #results do
           print(i,results.username,results.value)
        end
   end
end

[/lua]

nta84 · April 25, 2013, 5:06am

I have tried and results are nil

Simulator Output:

User is logged in : true

The user profile: {…}

1 nil nil

2 nil nil

What type of data the submitted score value should be? integer, string, or array?

local score = ? leaderboards.submitHighScore( myLeaderBoard, score )

bjsorrentino · April 25, 2013, 4:00pm

Hi @nta84,

It should be in string format… is that what you tried? Or did you try both string and number with no success on either?

Brent

rob · April 25, 2013, 11:44pm

Why don’t you go to the community code and find the print_r() function and use that to dump the results table or print the event.response string to see the JSON encoded version and see what’s getting returned?

nta84 · April 26, 2013, 6:32am

Thanks to everybody! I tried to submit number and string and it accept both number and string (string = “numbers”). Now with print_r() it’s clear that submitHighScore and getScores are working Why, I can’t get only results.value?

simulator output:

table: 126158F0 { [1] =\> table: 126158F0 { [updated\_at] =\> "2013-04-25T11:19:47+00:00" [username] =\> "CloudPlayer75" [\_id] =\> "5177xxxxxxxxxxxxxxxxxxx02" [value] =\> 13420 [leaderboard\_id] =\> "5173xxxxxxxxxxxxxxxxxx000001" [created\_at] =\> "2013-04-24T07:10:43+00:00" [user\_id] =\> "517xxxxxxxxxxxxxxxxxx001" } [2] =\> table: 126158F0{ [updated\_at] =\> "2013-04-25T04:51:33+00:00" [username] =\> "CloudPlayer76" [\_id] =\> "5178bxxxxxxxxxxxxxxxxxxx0001" [value] =\> 1000 [leaderboard\_id] =\> "51738xxxxxxxxxxxxxxxxxx0001" [created\_at] =\> "2013-04-25T04:51:33+00:00" [user\_id] =\> "5177xxxxxxxxxxxxxxxxxxxxxx001" } } 1 nil nil 2 nil nil

local function leaderboardsListener( event ) &nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;if ( event.type == "getScores" and event.error == nil ) then &nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; local scoreStrings = {} &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; local results = json.decode(event.response) &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; print\_r(results) &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; for i = 1, #results do &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; print(i,results.username,results.value) &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; end &nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;end &nbsp;&nbsp;&nbsp; end &nbsp;&nbsp;&nbsp; leaderboards.setListener( leaderboardsListener )