`shield/max_shield` prevents the shield bar to show itself

[cleartocode]

Godot-Game-Engine-Projects/Chapter 4 - Space Rocks/player/Player.gd

Line 50 in 9e4e9b7

emit_signal("shield_changed", shield/max_shield)

also i came accross with this issue, the following fixed for me:

func set_shield(value):
	if value > max_shield:
		value = max_shield
	shield = value
	emit_signal("shield_changed", shield/max_shield*100)    # multiply by 100
	if shield <= 0:
		self.lives -= 1