let moveDist = 2;

​

function setup() {

  createCanvas(windowWidth, windowHeight);

  mChar = {

    x: width / 2,

    y: height / 2,

    d: 50,

  };

}

​

function draw() {

  background(220, 20, 120);

​

  if (keyIsPressed) {

    keyPressed();

  }

​

  fill(255, 190, 90);

  ellipse(mChar.x, mChar.y, mChar.d);

}

​

function keyPressed() {

  if (keyCode == UP_ARROW) {

    mChar.y -= moveDist;

  } else if (keyCode == DOWN_ARROW) {

    mChar.y += moveDist;

  } else if (keyCode == LEFT_ARROW) {

    mChar.x -= moveDist;

  } else if (keyCode == RIGHT_ARROW) {

    mChar.x += moveDist;

  } else if (key == "r") {

    mChar.x = width / 2;

    mChar.y = height / 2;

  }

}

​