How do I make highscore with localstorage ?

How do I make highscore with localstorage ?

why my highscore always NaN..

Local storage is asynchronous, it doesn't run in the same structure of the event sheet.

Basically you need to request a key first, then access the value with a get key trigger. If you try to access the value right away, before the get key is triggered, it will return the string "0", which is not a number (NaN).

Proper use is explained clearly in the manual entry. https://www.scirra.com/manual/188/local-storage

shuwand

[quote:2fvr1we3]How do I make highscore with localstorage ?

Add the LocalStorage object

Add global variables Score=0 and HighScore=0

Initialise your high score:

System: On start of layout

-> LocalStorage: Get item "HighScore"

LocalStorage: On item "HighScore" get

-> System: Set HighScore to int(LocalStorage.ItemValue)

In your level end event (where you'd show the high score and have a restart button), add a sub-event:

System: Compare Score > HighScore

-> System: Set HighScore = Score

-> LocalStorage: Set item "HighScore" to HighScore

[quote:2fvr1we3]why my highscore always NaN..

Use in() to turn the values returned from local storage into numbers, i.e. int(LocalStorage.ItemValue)