I'm making a BASIC ASCII MapMaker and it works, but I need to be able to make maps bigger than just 8 x 11. (e.g. 10 x 10).

Does anyone know a way to display a certain part of a matrix?
Smooth-scrolling is out of the picture and I'm currently trying to display different 8 x 16 sections at a time. [To no avail.]

Help is appreciated.

~Raylin

EDIT: BTW, you can throw out some relatively complex formulas (excluding strings). I'm no spring chicken to TI-BASIC.

You're storing your map(s) to a matrix/matrices? And you're averse to using strings? Well, that makes it kind of hard in my opinion. Definitely not my way of generating screen-by-screen-scroll maps.

Sorry, I just... don't like how long the string maps are.
They look too complex... and MDR Falcon didn't help me any with his uber-long string concatenating formulas.

I suppose you're right. A standard 8x16 map screen is 128 characters so large maps lead to enormous strings and can sap your RAM. Aside from that, it's not all too hard.

A basic way of generating maps from strings is to store the map to the string and display it 128 characters at a time with the sub(), substring, function. To make it even easier, use a matrix as a value map.

To add a map to a string, just type it up on the home screen, add strN+" in front and "->StrN at the end (N being the number of the string you're using) and then pressing enter.

For example, say you have a 4 screen map, 512 characters. If your map looks like this:

[room 1][room 2][room 3]
[room E][room E][room 4]

then your matrix might look like this:

[1 129 257]
[0 000 385]

each cell value corresponds to where in the string a particular room's data begins.

***numerical values might have an error of +/- 1 ^^;;

While it's true that string maps can get large, matrix maps are much less efficient because they require many more bytes per element (9 if I remember correctly?) than a string (one or two bytes per element).

http://www.ticalc.org/archives/files/fileinfo/364/36409.html

http://www.ticalc.org/archives/files/fileinfo/403/40345.html

http://tifreakware.net/tutorials/83p/b/tifw/les8.htm

I hope some of these links will better assist you in learning the string detection and such.