// Hook
function useKeyPress(targetKey) {
// State for keeping track of whether key is pressed
const [keyPressed, setKeyPressed] = useState<boolean>(false);
// If pressed key is our target key then set to true
function downHandler({ key }) {
if (key === targetKey) {
setKeyPressed(true);
}
}
// If released key is our target key then set to false
const upHandler = ({ key }) => {
if (key === targetKey) {
setKeyPressed(false);
}
};
// Add event listeners
useEffect(() => {
window.addEventListener("keydown", downHandler);
window.addEventListener("keyup", upHandler);
// Remove event listeners on cleanup
return () => {
window.removeEventListener("keydown", downHandler);
window.removeEventListener("keyup", upHandler);
};
}, []); // Empty array ensures that effect is only run on mount and unmount
return keyPressed;
}