Fixed the game and applied PlayerData global file

player_data.gd

@@ -35,3 +35,10 @@ func _on_give_experience(amount: float) -> void:
 
 func _on_give_money(amount: float) -> void:
 	money += amount
+
+func try_purchase(amount) -> bool:
+	if amount <= money:
+		money -= amount
+		return true
+	else:
+		return false

printer.gd

@@ -5,4 +5,5 @@ var printer_data: PrinterData
 
 func initialize_printer(data: PrinterData) -> void:
 	printer_data = data
+	#print("Creating bought printer: " + printer_data.printer_manufacturer)
 	model.text = printer_data.printer_manufacturer + printer_data.printer_type

printer_card.gd

@@ -20,3 +20,4 @@ func initialize_printer(data: PrinterData) -> void:
 
 func _on_buy_button_pressed() -> void:
 	buy_printer.emit(self)
+	print("Shop tab printer clicked: " + self.printer_data.printer_manufacturer)

printers.gd

@@ -13,5 +13,5 @@ func _ready() -> void:
 		new_printer.buy_printer.connect(_buy_printer_pressed)
 
 func _buy_printer_pressed(bought_printer):
-	print("Printer model: " + bought_printer.printer_data.printer_type)
+	#print("Printer model: " + bought_printer.printer_data.printer_type)
 	printer_purchase_requested.emit(bought_printer.printer_data)

ui.gd

@@ -3,7 +3,7 @@ extends Control
 @export var jobs_array: Array[JobData]
 @export var job_limit: int = 5
 var jobs_tab_button: Button
-const job_scene = preload("uid://dvfcie8hqcb0")
+const JOB_SCENE = preload("uid://dvfcie8hqcb0")
 const PRINTER = preload("uid://33ctlyrpibs3")
 
 func _ready() -> void:
@@ -12,6 +12,7 @@ func _ready() -> void:
 	%Level.text = "Level: " + str(PlayerData.level)
 	jobs_tab_button = $VBoxContainer/MainArea/RightColumn/TabSwitcher/TabButtons/JobsTabButton
 	
+	PlayerData.xp_changed.connect(_on_xp_changed)
 	PlayerData.level_changed.connect(_on_level_changed)
 	PlayerData.money_changed.connect(_on_money_changed)
 
@@ -21,13 +22,16 @@ func generate_job():
 	
 	if not job_count.size() >= job_limit:
 		var random_job: JobData = jobs_array.pick_random()
-		var new_job = job_scene.instantiate()
+		var new_job = JOB_SCENE.instantiate()
 		%JobContainer.add_child(new_job)
 		new_job.initialize_job(random_job)
 		job_count = %JobContainer.get_children()
 		jobs_tab_button.text = "Jobs (" + str(job_count.size()) + "/" + str(job_limit) + ")"
 		new_job.job_accepted.connect(_on_job_accepted_pressed)
 
+# --- Experience, Level and Money update ---
+func _on_xp_changed(xp):
+	%Experience.value = xp
 func _on_level_changed(level):
 	%Level.text = "Level: " + str(level)
 func _on_money_changed(money):
@@ -35,9 +39,7 @@ func _on_money_changed(money):
 
 func _on_job_accepted_pressed(accepted_job):
 	print("Job accepted")
-	#give_experience(accepted_job.job_data.job_experience)
 	PlayerData.give_experience.emit(accepted_job.job_data.job_experience)
-	#give_money(accepted_job.job_data.job_reward)
 	PlayerData.give_money.emit(accepted_job.job_data.job_reward)
 	
 	accepted_job.queue_free()
@@ -48,8 +50,9 @@ func _on_job_spawner_timeout() -> void:
 	generate_job()
 
 func _on_printers_printer_purchase_requested(printer_data: PrinterData) -> void:
-	if printer_data.printer_price <= PlayerData.money:
+	#print("Signal reached UI: " + printer_data.printer_manufacturer)
-		#money -= printer_data.printer_price
+	if PlayerData.try_purchase(printer_data.printer_price):
-		#%Money.text = "Money: " + str(money) + "€"
+		%Money.text = "Money: " + str(PlayerData.money) + "€"
 		var new_printer = PRINTER.instantiate()
+		%PrinterContainer.add_child(new_printer)
 		new_printer.initialize_printer(printer_data)