LÖVE

i am making my first game with love2d
in my game islands goes down in screen, but it seems they are shaking!
can anyone tell me why?

It looks fine on my computer. You appear to be using deltatime so... *looks at code*

Hmm, have you considered using math.floor on the x/y positions of the islands? This might solve the issue. Drawing stuff at non-integer values can cause somewhat odd behaviour.

Looks perfectly fine to me.

my game in 3 pc!
see FPS and water background in all three.
what is this? :-&