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AppGameKit Classic Chat / Store RGB as integer

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Scotty1973
AGK Backer
13
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Joined: 2nd Jun 2011
Location: Burton-on-Trent, uk
Posted: 4th Nov 2014 13:10
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Hi

Is there a way to store RGB values as an integer, one of the drawLine commands takes an integer as a colour.
So is there a way to convert RGB to integer and back?

Many thanks

Scotty
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Digital Awakening
AGK Developer
22
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Joined: 27th Aug 2002
Location: Sweden
Posted: 4th Nov 2014 13:30
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integer MakeColor( red, green, blue )

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haliop_New
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Posted: 4th Nov 2014 19:05
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what does this do actually ? i dont get it
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Native Tech
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Posted: 4th Nov 2014 19:27
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It basically assigns the color to a variable.alot like

mysprite=createsprite(image) will store a sprite in mysprite variable

U can them access ur color anywhere else in the program if u make the integer GLOBAL

try

Global col as integer
col = MakeColor(r,g,b)

And then

DrawLine(x,y,xx,yy,col,col)

Native Technology
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Scotty1973
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Posted: 4th Nov 2014 22:09
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Hi all

Thanks for that, looked through help commands and missed that one! ops


Thank you

Scotty
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BMacZero
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Joined: 30th Dec 2005
Location: E:/ NA / USA
Posted: 5th Nov 2014 06:11
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My version of AppGameKit doesn't seem to have makeColor, but Paul demonstrated what it actually does here, so you could implement it yourself: thread.

Rather than allocating some kind of resource behind the scenes and just returning an identifier to it (like createSprite), it actually does pack the entire color into an integer. This works because each of the four components in the color are 8-bit values, and an integer can store 32 bits.

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Blendman
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Posted: 5th Nov 2014 12:15
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Hi

You can use that in agk v1. I think it works :



http://www.dracaena-studio.com
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BMacZero
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Posted: 6th Nov 2014 08:04 Edited at: 6th Nov 2014 08:05
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You'd have to declare those parameters (r,g,b) as floats, and you should also use 255 instead of 256 in RGB or you'll overflow into the next byte on a 1.

Probably faster and neater to use bitwise operators as Paul does:


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easter bunny
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Playing: Dota 2
Posted: 13th Nov 2014 01:08
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You can also use this:




Audacia Games - Latest WIP - AUTOMAYTE 2.1, AppGameKit one click deploy to Android
"When you've finished 90% of your game, you only have 90% left"
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Digital Awakening
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Posted: 14th Nov 2014 11:29
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Nice

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