How is the pulsing light effect created?

[everystone]

Hi,
great game, I learned a lot about webgl from your code, thanks!
I can't seem to figure out what is causing the flickering / pulsing effect of the light around the player, and the blue glowing walls, is it in the shader? Cheers

[everystone]

Nevermind, figured it out, it's from the light in the cpu entity