Added basic elevator system

client/Scripts/Entities/ElevatorButton.gd

@@ -0,0 +1,20 @@
+extends "res://Scripts/Component/Interactable.gd"
+
+export(NodePath) var elevator
+export var call_to_index : int = 0
+
+var elevator_node
+
+func _ready():
+	elevator_node = get_node(elevator)
+	connect("interacted", self, "_on_interact")
+	$AnimationPlayer.play("Done")
+
+func _on_interact():
+	if elevator_node.start_moving(call_to_index):
+		elevator_node.connect("elevator_stopped", self, "_on_finish")
+		$AnimationPlayer.play("Waiting")
+	
+func _on_finish():
+	elevator_node.disconnect("elevator_stopped", self, "_on_finish")
+	$AnimationPlayer.play("Done")