1. When a human is hit by a bullet, check_shields() is called. If a
value different from BULLET_ACT_HIT is returned, the shield will void
the bullet.
2. In turn, check_shield() calls handle_shield() on the held shield.
3. whoever coded this shit forgot to add a default return value so the
held shield returns null when it fails to block meaning that the game
voids the bullet lol
Co-authored-by: Matt Atlas <liermattia@gmail.com>
Matt Atlas
b9afbeb674