Created first zone type

- Renamed CityData to SimData and added SimEvents for signals
= Set starting screen to game screen for now

scripts/Zone.gd

@@ -0,0 +1,46 @@
+extends KinematicBody2D
+
+export var cost: int = 10000
+export var income: int
+export var expense: int
+
+onready var zone = $Sprite
+onready var quarters = $Quarters
+onready var player = $AnimationPlayer
+
+var can_grab = false
+var grabbed_offset = Vector2()
+
+func _ready():
+	SimEvents.connect("pay_expense", self, "_get_expense")
+	
+	# Once placed in-world, it'll substract from your budget
+	if SimData.budget >= cost:
+		SimData.budget -= cost
+
+func _input(event):
+	if event is InputEventMouseButton:
+		can_grab = event.pressed
+		grabbed_offset = position - get_global_mouse_position()
+
+func _process(delta):
+	
+	player.play("Animante")
+	
+	if SimData.budget >= expense:
+		SimData.budget -= expense
+		
+	if SimData.budget >= income:
+		SimData.budget += income
+	
+	if Input.is_mouse_button_pressed(BUTTON_LEFT) and can_grab:
+		position = get_global_mouse_position() + grabbed_offset
+
+func _on_Quarters_timeout():
+	if SimData.prev_quarter == 4:
+		SimData.year += 1
+		SimData.emit_signal("one_time_zone")
+		SimData.emit_signal("pay_expense")
+		
+	SimData.prev_quarter = SimData.quarter
+	quarters.start()