Help using light as an obstacle
I've read through a lot of the tutorials on this site, and they've all been extremely helpful with getting me up to speed on GameSalad. I'm still building my first prototype, but the game I'm making is a stealth platformer where each level takes place in a dark hallway and uses the light from ceiling lamps as an obstacle. To progress, you find the light's matching switch and turn it off. If you don't and you walk into the light, it's an instant level restart.
I've made the mechanic work to where I can "turn the ceiling lamp off" and change the image from a lit lamp to an unlit lamp, but I need help making the light itself. Is there a lighting tool I could use or a way to manipulate an specialized "Light" actor to work like this? I'm having trouble figuring out where to start.