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var rot = 1;
var redCol = 0;
var bluCol = 200;
var diam = 0;
//var opacity = 255;
function setup() {
createCanvas(400, 400);
noFill();
background(0);
}
function draw() {
background(0,0,0,20);
translate(200,200);
rotate(rot);
stroke(redCol,0,bluCol);
ellipse(10,10,50,50);
rotate(rot);
stroke(redCol,50,bluCol);
line(0,0,200,200);
rotate(-rot);
stroke(255,60,50);
ellipse(0,0,diam,diam);
rot = rot + 0.1;
diam = diam + 1;
redCol = redCol + 1;
//opacity = opacity - 1
if (redCol > 253)
{
redCol = 0;
}
if(diam > 550)
{
diam = 0;
}
}