Couldn't figure out the "best" way to make sprites that you could click and drag. If you look for mouse down + touching sprite (and move the sprite in that case), that will "work", but if you move over other "draggable" sprites you will end up "collecting" all of them. I wanted only one sprite at a time to be dragged. Look at the Key-Inv sprite to see the drag script. This ensures that when you drag the key (sprite Key-Inv) over, say, the crowbar (sprite Crowbar-Inv), you will not pick up and move the crowbar too. The ClickDetect variable ensures that only one draggable inventory item can be dragged at one time.
