useTagfunctionhooknacatamalon
useTag(name: string) => TTagGives the tag name, to put on things, take off, ask about and find: what something is,
'enemy', 'coin', 'damageable', as many as it likes. Asking is getting: two pieces that ask
for 'enemy' get the same tag, and nothing registers it.
Asked for in a body, like every hook; what it gives works whenever, from a frame or a callback.
It finds in the scene it was asked for in. Collisions are asked by tag too:
useCollisionWith(enemies, ...) or useCollisionWith('enemy', ...).
Parameters
namestringThe tag.
Example
const Enemy = () => {
useTag('enemy').add(useSelf());
createSprite({ key: 'bat' });
};
export const Level: TSceneFn = () => {
const coins = useTag('coin');
coins.add(createSprite({ key: 'coin', transform: { x: 80, y: 60 } }));
useUpdate(() => {
if (coins.all().length === 0) console.log('all taken');
});
return createScene();
};