Expanded Buildings large/small?

[chickenx4]

hello I'm having trouble with add in the purple in the buildings large and small when I expand it

 

[Pounder]

1)index the picture to 256 colours
2)make a copy of the file
3)in the copied file, change the last two colours in the colour map to 255,0,255 (ff00ff) and 0,255,0 (00ff00)
4)copy and paste the original picture to the copied file
5)save as filename.pcx

 

[chickenx4]

Well what I know It's just like expanding units32.pcx

 

[Pounder]

Well then, it is just math.

Let's say you make a new file with twice the height, and then just cut and paste the old file in twice.