Why so slow?

Question

I created a game on HTML5 and it works fine on a computer.
But on the phone it slows down.
Watch my game and share what your FPS.

https://code.sololearn.com/WWkBJcm6X0yJ/?ref=app

Answer 1

O thanks. I'll see.
I forgot about Apple.

Answer 2

Interesting. I fix width and height of the game. But I have no idea why it does not work on iPad.

Answer 3

What kind of errors do you see? Can you write me a text of em?

Answer 4

I have no errors on my Nexus. In menu 30 fps. In game 0-1 fps. Sad.

Answer 5

Another version of the game is here. Transpiled to ES5.

https://code.sololearn.com/WBGSFKX9P742/?ref=app

Answer 6

Thank you for tests. I fix buttons. But slow FPS on phones is result of a lot of math in my code and mine not enough knowledge of JS.

Answer 7

Of cource it have. Objects have a flag or a method 'drawable' and if they are off-screen, they are not drawn or checked for collisions. Thanks.

Answer 8

Update: Now the game runs 10 times faster 20-22 fps compared to 2 fps before. Still to start i had to tap in the dead center below start button. Similar behaviour was observed with other buttons too.

Previous:
The game gets 54 fps while loading. But after that its 2fps. Clicking the 'start' button does not work -- possibly due to certain overlapping issues-- and once inside 'controls' or 'about' can't exit.

I tried your code via a web browser outside sololearn and there weren't any overlapping issues and i could start the game too. but it was 2 fps so i quit.

Answer 9

ive got an ipad mini 3 and an iphone 6. on the ipad im getting 'loading' on the page and a console script error at the bottom. on my phone, i'm getting the ui for the start of the game and two concloe script errors at the bottom so i cannot continue to the actual game. i looked at your code but the solution is not obvious to me

Answer 10

it isnt working at all on my ipad

Answer 11

it literally just says script error. maybe youve only developed it for androids and pc? try looking up cross platform mobile developing. its an issue i always got with making my own games

Answer 12

No mate! It runs on 60fps.
But it is not adaptive to my screen and half of the game is out of my screen

Answer 13

Guy, Is there any optimisation code? can you check if an object is in the visible screen? If it isn't you shouldn't render it and that will make it run faster

Answer 14

the button got it after press play doesn't works fine. It get pressed when I press down of it

Answer 15

I got only up to 60 GPS but the buttons not really working fine on my phone though.

Answer 16

some buttons don't work