Random spawning Guests

A guest timer counts down and emits a signal to the world. The world uses the street map to determine a new random guest position and spawns it

GuestTimer.gd

@@ -0,0 +1,16 @@
+extends Timer
+
+
+# Declare member variables here. Examples:
+# var a = 2
+# var b = "text"
+
+
+# Called when the node enters the scene tree for the first time.
+func _ready():
+	pass # Replace with function body.
+
+
+# Called every frame. 'delta' is the elapsed time since the previous frame.
+#func _process(delta):
+#	pass

World.gd

@@ -1,18 +1,25 @@
 extends Node2D
 
+onready var streets = $Streets
 
-# Declare member variables here. Examples:
-# var a = 2
-# var b = "text"
+var Guest = load("res://Guest.tscn")
+
+var rng = RandomNumberGenerator.new()
 
 func _on_Guest_picked_up(destinationColor,name):
 	print('Picked Up %s with name %s' % [destinationColor,name])
 
-# Called when the node enters the scene tree for the first time.
 func _ready():
-	pass # Replace with function body.
+	rng.randomize()
+	pass 
 
 
-# Called every frame. 'delta' is the elapsed time since the previous frame.
-#func _process(delta):
-#	pass
+
+func _on_GuestTimer_timeout():
+	var used_cells = streets.get_used_cells()
+	var new_guest_cell = used_cells[rng.randi_range(0, used_cells.size())]
+	var guest_position = streets.map_to_world(new_guest_cell)
+	print('new guest at: %s' % [guest_position])
+	var guest = Guest.instance();
+	guest.position = guest_position;
+	add_child(guest)

World.tscn

@@ -1,4 +1,4 @@
-[gd_scene load_steps=22 format=2]
+[gd_scene load_steps=23 format=2]
 
 [ext_resource path="res://assets/city_tiles/Street.png" type="Texture" id=1]
 [ext_resource path="res://assets/city_tiles/Buildings.png" type="Texture" id=2]
@@ -7,6 +7,7 @@
 [ext_resource path="res://Guest.tscn" type="PackedScene" id=5]
 [ext_resource path="res://World.gd" type="Script" id=6]
 [ext_resource path="res://assets/placeholder_white.png" type="Texture" id=7]
+[ext_resource path="res://GuestTimer.gd" type="Script" id=8]
 
 [sub_resource type="TileSet" id=1]
 0/name = "Street.png 0"
@@ -230,4 +231,10 @@ position = Vector2( 761.14, 102.634 )
 [node name="Guest3" parent="." instance=ExtResource( 5 )]
 position = Vector2( 758.143, 376.075 )
 
+[node name="GuestTimer" type="Timer" parent="."]
+wait_time = 5.0
+autostart = true
+script = ExtResource( 8 )
+
 [connection signal="picked_up" from="Guest" to="." method="_on_Guest_picked_up"]
+[connection signal="timeout" from="GuestTimer" to="." method="_on_GuestTimer_timeout"]