Variables

[JoleneTiffanyG]

This isn't my project, it's just an example for the sake of simplicity. But I'm trying to do something very basic and it's not working. I want g to be a variable I can use in rgba notation to change colors, and every time I put g in the spot where the green value number would go, it breaks and makes the ellipse white instead of the orangeish color it would be if the variable g was properly set to 150. What am I doing wrong here?

[DVSnell]

Try putting a semi colon at the end of line 2.

[cassadys]

You could try:

let g = 150;

On Wed, Oct 3, 2018, 23:32 Don-Vincent Snell notifications@github.com wrote:

Try putting a semi colon at the end of line 2.

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[spkvfx]

I do not think rgb() is a p5 object, but color() is:

let g = 150 ;

function setup(){
    createCanvas(500 , 500);
    background(color(50,150,70)) ;

}

function draw() {
    const cd = color(50,g,70) ;

    fill(cd);
    ellipse(100,400,100) ;
}

maybe I'm wrong about rbg() but color() will work; not sure why it works in background()...

[spkvfx]

BTW - const is just a constant. it works like let or var only it is not reassignable. sorry if that was confusing. you could use let or var there and it'd work just fine.

ETA:

you can also set a color component after the fact:

g = 150
fill_color = color(50,75,70) ;
fill_color.setGreen(g) ;

But I haven't successfully retrieved a color component yet. I assumed it'd be just: color.component like bg_color.blue

[JoleneTiffanyG]

Thanks guys for all the advice! I had tried all those things to no avail unfortunately. It seemed like on some forums I was reading, sometimes color doesn't work exactly like that? Oh well, I've found some other workarounds to get what I need done. Thanks so much for responding, it's super generous and incredibly helpful!:)