Can you use variables with Game.GetColorFromRGB?

[CaptainD]

I've been trying to use variables with this command but the results appear to bear no resemblance to what they should.  Basically I have:

Code: ags

c=Game.GetColorFromRGB(r, g, b);

r, g and b are integers ranging from 0-255, and I then set the surface drawing colour to c.  Obviously I'm doing something wrong, or I'm simply trying to do something that can't be done with this command.  Any ideas?

[Crimson Wizard]

This is the correct way of using this commmand, and there is absolutely no difference whether you use literal numbers or variables there. But I could not understand what the problem exactly is from your explanation. Can you give more details - what do you expect, and what do you get?

[morganw]

The colour is an integer, so unless you've already declared it:

Code: ags

int c = Game.GetColorFromRGB(r, g, b);

[CaptainD]

morganw - yes I've set C as a variable.

CW - the problem is that the colours are nothing like what I'd expect.  So for instance R=0 G=0 B=0; each game cycle draws a circle and increments b by 1; I'd expect to see a gradually brightening blue colour.  However the colours are all over the place, they don't even have a predominance of blue to them.  Also it appears to be using a very limited colour palette no matter what colour depth I set the game to.




Essentially this is the code that's doing this part every loop.  Nothing fancy at all.

Code: ags

c=Game.GetColorFromRGB(r, g, b);
   
DrawingSurface *surface = Room.GetDrawingSurfaceForBackground();
surface.DrawingColor = c;
surface.DrawCircle(x,y, size);
surface.Release();

b++;

if (b>255) b=0;

I just don't get what I'm doing wrong, but clearly I'm doing something wrong!

[Crimson Wizard]

I do not remember if this was documented, but certainly mentioned on forums few times before.

The first several (16 or 32) color indexes in AGS are special system colors, and I think you need to start Red and Green with 4 to avoid using them.
In other words, iterate Red and Green from 4 to 255, and blue from 0 to 255.

EDIT: This is mentioned on the Color Picker pane in AGS. The only color that needs to be restricted to 4+ is Green.

So, Green must go from 4 to 255, other components may be from 0 to 255.

[CaptainD]

Thanks CW!