Compact levels representation question

[Vincehood]

Hello,

this might be a stupid question but I will ask it anyway

I am learning how to scroll levels based on the compact data representation.

To quote nanoness' book,

DATA 0,0,0,0,0,0,0,0,1,1,1,1 for a column can be represented instead as:

1,$8041,$0000

This means repeat this column one time with eight 0 tiles and four 1 tiles, and then finish.

If I understand correctly this is relying on DATA PACKED representation.

Is is possible to use this representation for tiles with 2 digits?

For example, how to represent "repeat this column one time with eight 0 tiles and four 17 tiles, and then finish"

Cheers

[+nanochess]

In my book I didn't use DATA PACKED, but you got the idea, instead of putting two counts by word, you can put only one count per word. The upper byte being the count, and the lower byte being the tile used.

 

leveldata:

  DATA $0800,$0411

 

count = leveldata(#offset) / 256

tile_no = leveldata(#offset) AND 255