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let value, xval, yval, xspeed;
let xpos, ypos;
let oldypos,oldxpos;
let s;
let lines = [];
let lineArr = [];
function setup() {
createCanvas(400, 400);
xval =0;
xspeed = .0005;
yval = .5;
s = 1
}
function draw() {
background(220);
xval += xspeed;
xpos = map(xval,0,1,0,width);
ypos = map(yval,1,0,0,height);
fill(0);
ellipse(xpos,ypos,2*s,2*s);
// ellipse(width/2,height/2,10*s,10*s);
// for(let i=0; i< lines.length; i++)
// {
// let curArr = lines[i];
// line(curArr[0],curArr[1],curArr[2],curArr[3]);
// }
// if(random(1) < 0.3)
// {
// yval += random(-0.01,.01);
// lineArr = [oldxpos,oldypos,xpos,ypos];
// lines.push(lineArr);
// }
oldypos = ypos;
oldxpos = xpos;
}