I've thought about it for a long time, but I can't figure out how to do it. How do you make a tilemapper scroll both horizontally and vertically but retain physics elements like gravity?
Sample code would be nice.
Thanks in advance.

I can say a few things, though codewise it's not like a little thing; it could be dozens and dozens of lines just for the mapper/configurer.  But I can give some hints:

- Don't use horizontal/vertical commands, they are VERY slow; use an offset as a way of scrolling instead.
- While scrolling with your char moving around the screen at the same time is very nice, it can be slow too, and very complicated.  Don't take that on unless you really know what you're doing.
- For collision detection (and for the physics part) I'm sure you'll use velocities to move the character, like if the Y velocity is 2 then the character moves down 2 pixels next redraw.  Use a For(Var, 0, amount of pixels you'll move) statement to check all possible positions along the way of the movement and to also make sure you don't fall through floors when you move at increments of more than one pixel at a time.

kthx all. I'm viewing this more of a challenge than an actual project, though if I get it i'll use it in Graviter.

- Don't use horizontal/vertical commands, they are VERY slow; use an offset as a way of scrolling instead.

Correct me if i'm wrong, but I believe there is tilemapper posted in the tilemapper thread by Runner that used horizonal and vertical commands that got 60 FPS

Regular 8x8 monochrome seems to work pretty fast for me. I get about 60 fps scrolling for the most part (about 75 for aligned vertical scrolling). The screen is updated after every arrow key has been checked and the buffer image has been scrolled for each pressed key.

So would using horizontal and vertical, then filling in the missing tiles be faster than regenerating the map every frame? what's the most optimized method?

I believe Runner posted the source to his program in a different point in that topic so you could check it out or even ask him if you could use it

Okay, I made one using BuilderBoy's algorithm and mapping it every single frame. It's acceptable on full, but lags on normal.
Run DRAW.8xp, the rest are source.