[xAndrewx]

//#CLIENTSIDE
function onCreated()
{
  seteffect(0, 0, 0, 0.65);
  this.lightOff = true;
}
function onPlayerTouchsMe()
{
  this.lightOff = !this.lightOff;
  temp.curEffect = (this.lightOff? {0, 0, 0, 0.65}: {0, 0, 0, 0.85});
  seteffect(temp.curEffect[0], temp.curEffect[1], temp.curEffect[2], temp.curEffect[3]);
}

Made it for era, change the temp.curEffect value's for the different level effects. Simple yet fun