Initial project sync

scenes/ui/energy_bar.gd

@@ -0,0 +1,22 @@
+class_name EnergyBar
+extends ProgressBar
+
+
+func _ready() -> void:
+	show_percentage = false
+	_event_bus().connect("player_energy_changed", refresh)
+
+
+func refresh(current: float, maximum: float) -> void:
+	max_value = maxf(0.01, maximum)
+	value = clampf(current, 0.0, maximum)
+
+
+func _event_bus() -> Node:
+	var root := get_tree().root
+	var bus := root.get_node_or_null("EventBus")
+	if bus == null:
+		bus = load("res://autoload/event_bus.gd").new()
+		bus.name = "EventBus"
+		root.add_child(bus)
+	return bus