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objects/actions/StaticShield.gd

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+extends Area2D
+
+export var ship_path: NodePath
+export var energy_usage: float
+export var min_energy: float
+
+onready var ship: Node = get_node(ship_path)
+
+var active = false
+
+func activate():
+	if ship.energy > min_energy:
+		active = true
+		$Static.visible = true
+		$Shape.disabled = false
+
+func deactivate():
+	active = false
+	$Static.visible = false
+	$Shape.disabled = true
+
+func _physics_process(delta):
+	if active:
+		if !ship.set_energy(ship.energy - energy_usage * delta):
+			deactivate()