[xLIB] Help with matricies.

sean77771 · Post by **sean77771** » Sat 11 Feb, 2006 9:09 pm

Ok, I read through the readme and I understand how to use the commands that xLib lets you use. The only thing I don't understand is how to make the matricies. I looked at the MAP1 program that draws the matricies for the example program, but it just looks like a bunch of numbers to me. Could someone help me, or point me in the direction of someone who can? Thanks.

kalan_vod · Post by **kalan_vod** » Sat 11 Feb, 2006 10:35 pm

For matrics:

BASIC Code wrote::ClrHome
:[[1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1][1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1][1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1][1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1][1,0,0,0,0,1,0,0,0,0,0,0,0,0,0,1][1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1][1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1][1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1[A]
:For(A,1,8
:For(B,1,16
:Output(A,B,sub(" O",[A](A,B)+1,1
:End
:End
:2A:2B
:[A](A,B
:Repeat Ans=1
:Repeat Ans
:getKey
:End
:AC:BD
:B+(=26)-(=24B
:A+(=34)-(=25A
:If [A](A,B:Then
:CA:DB:End
:Output(C,D,"
:Output(A,B,"O

So you just want to change a number, then just [A](A,B
such as I want a 3 to be in the 1,1 position then I would 3->[A](1,1

Btw tr1p, you might want to move this to the help section.

Post by **tr1p1ea** » Sun 12 Feb, 2006 6:15 am

You can Edit a matrice using the on calc editor. Just press 2nd then x^-1 (Matrix) to get to the menu. Here you can view, create and edit any matrice on your calc.

sean77771 · Post by **sean77771** » Mon 13 Feb, 2006 6:42 pm

Thanks, but I'm not sure that you guys understand my question. When I say I don't understand the matricies, I mean I REALLY don't understand them. What are all those numbers? How are those used to draw the map?

Timendus · Post by **Timendus** » Mon 13 Feb, 2006 6:47 pm

A matrix is a way to store numbers in a 2 dimensional way. So instead of having an index, like in a list, you'd have two coordinates to point to a value. This is an example of a matrix:

Code: Select all

3 6 1 9 6 4
3 8 3 7 3 5
8 2 9 1 3 4

sean77771 · Post by **sean77771** » Tue 14 Feb, 2006 9:26 pm

And then the number in that spot corresponds to the number of the tile in the pic?

kalan_vod · Post by **kalan_vod** » Tue 14 Feb, 2006 9:31 pm

Yes, the tiles are 8x8 (well then theres 12x12) and the number from left to right top to bottom (0|1|2|3|4|5|6|7|8|9|10|11 then a new row starts with 12.)

sean77771 · Post by **sean77771** » Wed 15 Feb, 2006 12:38 am

Great thanks for your help.