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let angle = 0;
let x = 0;
let y = 0;
function setup() {
createCanvas(600, 400);
}
function draw() {
background(0, 10);
translate(200, 200);
noStroke();
fill(0, 255, 255);
x = map(sin(angle), -1, 1, 0, 0);
y = map(cos(angle), -1, 1, 0, 0);
circle(x, y, 10);
}