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OA47

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Joined: 11/04/2012
Location: Australia
Posts: 982

Posted: 06:13am 22 Nov 2023

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Is it possible to make foreground and background colours variables?
Like BGColour$="RGB(100,100,100) and use the string in a TEXT string?

0A47

TassyJim

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Joined: 07/08/2011
Location: Australia
Posts: 6219

Posted: 06:54am 22 Nov 2023

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colours are a number so MYbackground% = RGB(100,100,100)
then use MYbackground where ever you would use RGB(x,x,x)

Jim

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OA47

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Joined: 11/04/2012
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Posted: 08:05am 22 Nov 2023

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Thanks Jim, I should have added more information to my predicament. I am trying to use an array to hold the sections of the TEXT command and I if I use a String array I can extract the X and Y co-ordinates, the FONT and SCALE using VAL() , the actual TEXT string is Ok but I cant see a simple way around holding the foreground and background information unless I use 6 more elements to the array.

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matherp
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Joined: 11/12/2012
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Posted: 08:08am 22 Nov 2023

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The colour is just a number so yo only need two elements. i.e.
rgb(128,128,128) = &H808080 = 8421504

Mixtel90

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Joined: 05/10/2019
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Posted: 08:13am 22 Nov 2023

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You could put the colours into an integer array
c%(2)=(RGB(yellow),RGB(40,40,40),rgb(white))
then store c%(n) as CHR$(c%(n)) in your string

Is that what you mean?

Mick

Zilog Inside! nascom.info for Nascom & Gemini
Preliminary MMBasic docs & my PCB designs

OA47

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Posts: 982

Posted: 08:17am 22 Nov 2023

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Peter how would you elegantly recover the RGB(XXX,XXX,XXX) from a saved string of "8421504"?
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matherp
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Posted: 08:20am 22 Nov 2023

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Quote Peter how would you elegantly recover the RGB(XXX,XXX,XXX) from a saved string of "8421504"?X

You don't need to - just use 8421054 in the TEXT command

TEXT 0,0,"hello",,,,8421054,0

is perfectly valid

OA47

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Location: Australia
Posts: 982

Posted: 08:23am 22 Nov 2023

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Peter thank you very much. That solves my dilemma instantly.
I have not seen the commands using the numerical form of RGB(xxx,xxx,xxx) before.

0A47
Edited 2023-11-22 18:47 by OA47

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