createCanvas(300, 300);

  rectMode(CENTER)

}

​

function draw() {

  background(255);

  //translate(mouseX, mouseY)

  //translate(width/2, height/2)

  //ellipse(0,0,140,140)

  //rotate(radians(45))

  for (let x=15; x<=width; x+=30 ){

    push()

    translate(x, height/2)

    fill(0)

  rotate(radians(45))

  rect(0,0,30,30)

  //rect(x,height/2,30,30)

    pop()

  }

  push() //----> whatever between push and pop only effected by color red, like a block of code

  fill(255,0,0)

  ellipse(30,30,30,30)

  pop()

}