Movement of the Noise

//noise movement
float xoff = 100;
float xincrement = 0.1;

void setup() {
size(800,500);
background(560);
frameRate(50);
smooth();
noStroke();
}
void draw()
{
fill(0, 25);
rect(120,45,width,height);
float n = noise(xoff)*(width );
xoff += xincreent;

fill(222);
rect(n,height/12,15,150);
fill(222);
rect(n,height/1.5,50,15);
fill(150);
ellipse(n,height/1,25,50);
}

void keyPressed(){
if (key=='s'){
saveFrame("project-####.jpg"); //saves the image in documents
}
}