Quote: "So would I have the invisible entity on each level of the map at floor level?"
Yes.
Quote: "Can someone explain to me how this works technically?"
If you have Dark Egypt/MP 8, you'll see that there are already floor entities. Floor entities, when aligned with the floor (hit the "Enter" key while adding) and having collision turned on, act exactly like floor segments. You can walk on them, run on them, stand on them, or whatever your little heart (and the script) desires. A good example of this is by using an invisible wall entity (same concept). You place the wall, it doesn't appear in the game as it's invisible, but if you walk into it you stop in your tracks.
Now, if you turn the collision off, you can fall through it. Doing this would give the illusion of there being no floor, but you can still place waypoints so that your antigrav platform could move up and down levels.
Another trick that could be done with this is to have a whole bunch of them lined up as a floor, but having stuff underneath that can be seen. You could then turn the collision on for some and off for the others, and create pathways that the player would need to walk on in order to get across to the other side of the room. Technically, you could pull off a scene from "Last Crusade" this way (where Indy walks across the lettered tiles spelling out Jesus in Hebrew).
Make sense? And....do you need an invisible floor entity?
Priest of the Church of Joe Wood
In memory of Nanee. 9/1/1993 - 5/16/2009. Rest in Peace, little girl.
