sprite.setPosition

sprite.setPosition sets Position on a sprite object. It takes id, x and y.

sprite.setPosition(id, x, y)

function start() {  const id = sprite.create('/sprites/hero.png', 100, 120);  sprite.setPosition(id, 100, 120);}

sprite.create is there to give the call something to act on; sprite.setPosition is the line that matters. The code sits in start(), which the engine calls once, when the entity spawns.