init

scripts/effects/shadow.gd

@@ -0,0 +1,44 @@
+extends Sprite2D
+
+@export var powerOnCurve: Curve
+@export var shutDownCurve: Curve
+var time: float
+@export var duration: float
+
+@export var bubbleMask: Sprite2D
+
+var curve: Curve
+var animating: bool = false
+
+
+# Called every frame. 'delta' is the elapsed time since the previous frame.
+func _process(delta):
+	if (not animating):
+		return
+	
+	time += delta
+	var alpha = curve.sample(clamp(time / duration, 0, 1))
+	modulate = Color(Color.WHITE, alpha)
+	bubbleMask.modulate = Color(Color.WHITE, alpha)
+	if (time >= duration):
+		animating = false
+
+
+func shut_down():
+	time = 0
+	curve = shutDownCurve
+	animating = true
+
+
+func power_on():
+	time = 0
+	curve = powerOnCurve
+	animating = true
+
+
+func _on_lights_out():
+	shut_down()
+
+
+func _on_lights_in():
+	power_on()