Vast improvements and a working finite state machine, working on new guild member registration.

test_adventurer_sprite.tscn

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+[gd_scene load_steps=16 format=3 uid="uid://dew8gxu55ex6q"]
+
+[ext_resource type="Script" uid="uid://cjqumk0kw2vte" path="res://adventurer.gd" id="1_wif60"]
+[ext_resource type="Texture2D" uid="uid://bldpiytpdrge6" path="res://icon.svg" id="2_rwbq5"]
+[ext_resource type="Texture2D" uid="uid://cbamfadh7wwr7" path="res://speech-blip.png" id="3_71qlo"]
+[ext_resource type="Texture2D" uid="uid://1mmg270gotb1" path="res://busy-dots.png" id="4_ay0uu"]
+[ext_resource type="Script" uid="uid://w57riwplc00t" path="res://speech_bubble.gd" id="4_rwbq5"]
+[ext_resource type="Script" uid="uid://djd8pv5xbgud3" path="res://fsm/machines/test.gd" id="5_snss2"]
+[ext_resource type="Script" uid="uid://dl3b5aywu1hf6" path="res://fsm/nodes/wait.gd" id="6_1cj4e"]
+[ext_resource type="Script" uid="uid://e8we6nmaob1k" path="res://fsm/nodes/test.gd" id="7_ux5kh"]
+[ext_resource type="Script" uid="uid://bewrajxqdutsu" path="res://fsm/interact_with_employee.gd" id="9_snss2"]
+[ext_resource type="Script" uid="uid://y85swbbk8kbd" path="res://fsm/nodes/queue.gd" id="10_1cj4e"]
+[ext_resource type="Script" uid="uid://b0ewnwcibhu21" path="res://fsm/nodes/leave.gd" id="11_ux5kh"]
+
+[sub_resource type="CircleShape2D" id="CircleShape2D_5n4iw"]
+radius = 35.0
+
+[sub_resource type="Animation" id="Animation_bog1h"]
+length = 0.001
+tracks/0/type = "value"
+tracks/0/imported = false
+tracks/0/enabled = true
+tracks/0/path = NodePath("Sprite2D3:frame")
+tracks/0/interp = 1
+tracks/0/loop_wrap = true
+tracks/0/keys = {
+"times": PackedFloat32Array(0),
+"transitions": PackedFloat32Array(1),
+"update": 1,
+"values": [0]
+}
+
+[sub_resource type="Animation" id="Animation_13vc8"]
+resource_name = "busy"
+length = 0.7000034
+loop_mode = 1
+tracks/0/type = "value"
+tracks/0/imported = false
+tracks/0/enabled = true
+tracks/0/path = NodePath("Sprite2D3:frame")
+tracks/0/interp = 1
+tracks/0/loop_wrap = true
+tracks/0/keys = {
+"times": PackedFloat32Array(0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7),
+"transitions": PackedFloat32Array(1, 1, 1, 1, 1, 1, 1, 1),
+"update": 1,
+"values": [0, 1, 2, 3, 4, 5, 6, 0]
+}
+
+[sub_resource type="AnimationLibrary" id="AnimationLibrary_uo85v"]
+_data = {
+&"RESET": SubResource("Animation_bog1h"),
+&"busy": SubResource("Animation_13vc8")
+}
+
+[node name="AdventurerSprite" type="CharacterBody2D"]
+script = ExtResource("1_wif60")
+interaction_range = null
+stop_range = null
+
+[node name="Sprite2D" type="Sprite2D" parent="."]
+modulate = Color(0, 1, 0, 1)
+scale = Vector2(0.5, 0.5)
+texture = ExtResource("2_rwbq5")
+
+[node name="NavigationAgent2D" type="NavigationAgent2D" parent="."]
+path_desired_distance = 30.0
+avoidance_enabled = true
+
+[node name="CollisionShape2D" type="CollisionShape2D" parent="."]
+shape = SubResource("CircleShape2D_5n4iw")
+
+[node name="SpeechBubble" type="Sprite2D" parent="."]
+visible = false
+position = Vector2(39, -42)
+texture = ExtResource("3_71qlo")
+script = ExtResource("4_rwbq5")
+
+[node name="Sprite2D3" type="Sprite2D" parent="SpeechBubble"]
+position = Vector2(0, -4)
+texture = ExtResource("4_ay0uu")
+hframes = 2
+vframes = 4
+
+[node name="AnimationPlayer" type="AnimationPlayer" parent="SpeechBubble"]
+libraries = {
+&"": SubResource("AnimationLibrary_uo85v")
+}
+
+[node name="StateMachine" type="Node" parent="."]
+script = ExtResource("5_snss2")
+starting_state = "Queue"
+
+[node name="Wait" type="Node" parent="StateMachine"]
+script = ExtResource("6_1cj4e")
+wait_duration = 3.0
+
+[node name="Test" type="Node" parent="StateMachine"]
+script = ExtResource("7_ux5kh")
+message = "TEST COMPLETE!"
+
+[node name="Interact With Employee" type="Node" parent="StateMachine"]
+script = ExtResource("9_snss2")
+employee_name = "Receptionist"
+speech_bubble = "Talk"
+wait_duration = null
+interaction_args = Array[String](["register"])
+
+[node name="Queue" type="Node" parent="StateMachine"]
+script = ExtResource("10_1cj4e")
+employee = "Receptionist"
+
+[node name="Node" type="Node" parent="StateMachine"]
+script = ExtResource("11_ux5kh")