function handleKeyPress(event) {
const key = event.key;
if (key === 'ArrowLeft' && direction.x !== 1) {
direction = { x: -1, y: 0 };
} else if (key === 'ArrowUp' && direction.y !== 1) {
direction = { x: 0, y: -1 };
} else if (key === 'ArrowRight' && direction.x !== -1) {
direction = { x: 1, y: 0 };
} else if (key === 'ArrowDown' && direction.y !== -1) {
direction = { x: 0, y: 1 };
}
}