LÖVE

Hey guys! I use love2d for few days and this is awesome tool for gamedev
I have some problem with synchronization between game hero and light from this thread. I need it for a horror game
I attach test scene, you can see all troubles by yourself.
It had a dirty code, never mind, I just want to fix this.
Thanks for any help

you have to pass the player's position on the screen to the shader.
this should fix it:

it fix some parts
but when I'm going up light on this time going down :<