getY

Category:Turtle

getY()

Category: Turtle

Gets the current y coordinate in pixels of the turtle.

The y coordinate is the distance from the turtle to the top of the screen.

Examples

var yLocation = getY();
console.log(yLocation);
moveTo(100, 100);
console.log(getY());

Top and to the Left Move a bit closer to the top left.

// Move a bit closer to the top left.
var newX = getX() * 0.75;
var newY = getY() * 0.75;
moveTo(newX, newY);

Bounce the Turtle Have the turtle keep moving, but bounce off the walls so it stays on the screen.

// Have the turtle keep moving, but bounce off the walls so it stays on the screen.
var speedX = 10;
var speedY = 10;
while (true) {
  var newX = getX() + speedX;
  var newY = getY() + speedY;
  if (newX < 20) {
    newX = 20;
    speedX = - speedX;
  } else if (newX > 300) {
    newX = 300;
    speedX = - speedX;
  }
  if (newY < 20) {
    newY = 20;
    speedY = - speedY;
  } else if (newY > 460) {
    newY = 460;
    speedY = - speedY;
  }
  moveTo(newX, newY);
}

Syntax

getY();

Parameters

getY() does not take any parameters.

Returns

Returns a number representing the current y coordinate in pixels of the turtle within the app display.

Tips

The screen default size is 320 pixels wide and 450 pixels high, but you can move the turtle off the screen by exceeding those dimensions.
The turtle can be moved off the screen so getX() can return a negative number if the turtle is off the screen to the left and getX() can return a number greater than 320 if the turtle is off the screen to the right.

Found a bug in the documentation? Let us know at documentation@code.org