Making a maze game, and wondering about setting up the walls. I've created the layout of my maze using GIMP, saved as a PNG. When importing as a sprite is there any way i can make the walls of my imported PNG solid with out adding in extra sprites? Im cooking up some pretty intricate mazes, and i fear if i have to add extra sprites to make the walls solid, it will impact performance. Also, if this is in the wrong spot, i apologize. If you could point me in the right way i would appreciate it, Thank You!