pxt-calliope/docs/reference/game/is-touching-edge.md

Touching Edge

Find whether the sprite is touching the edge of the LED screen.

Sprites are touching the edge if they overlap with an LED on the edge of the screen.

game.createSprite(0, 2).isTouchingEdge();

Parameters

• a sprite that might be touching the edge of the screen.

Returns

• true if the sprite is touching the edge of the screen.

Example

This program makes a sprite in the middle of the left edge of the LED screen. Then it says EDGY! if it's on the edge (which it is!), and SAFE! if it's not on the edge.

let item = game.createSprite(0, 2);
if (item.isTouchingEdge()) {
    basic.showString("EDGY!");
} else {
    basic.showString("SAFE!");
}

See also

create sprite, is touching, if on edge, bounce