Perfect animation cancelling comes with the DOTA 2 API. If you tell the API to make you attack a thing once, you're 'attacking' until the projectile is created

Perfect animation cancelling comes with the DOTA 2 API. If you tell the API to make you attack a thing once, you're 'attacking' until the projectile is created, and then you're 'idle' immediately afterward. So long as you're feeding the hero actions, it'll always animation cancel.