Shop

gui/buy_menu/buy_button/buy_button.gd

@@ -7,9 +7,10 @@ func _ready() -> void:
 	text = str(weapon.cost)
 
 func _pressed() -> void:
-	var player_data = Session.get_player_data()
-	if player_data["money"] >= weapon.cost:
-		var player: Player = Session.player_nodes[multiplayer.get_unique_id()]
-		
-		player_data["money"] -= weapon.cost
-		player.get_node("WeaponSystem").add(weapon.weapon_system_scene.instantiate(),"ability_first")
+	try_server_buy.rpc_id(1)
+
+@rpc("any_peer","call_local","reliable")
+func try_server_buy() -> void:
+	if not multiplayer.is_server():
+		return
+	Shop.buy(multiplayer.get_remote_sender_id(),weapon)

gui/buy_menu/shop.gd

@@ -0,0 +1,29 @@
+extends Node
+
+
+func can_buy(player_id: int,weapon: WeaponResource) -> bool:
+	return Session.player_data[player_id]["money"] >= weapon.cost
+
+func buy(player_id: int, weapon: WeaponResource) -> void:
+	if not multiplayer.is_server() or can_buy(player_id,weapon) == false:
+		return
+	
+	var player: Player = Session.player_nodes[player_id]
+	if player.hp == 0:
+		return
+	
+	var weapon_system: WeaponSystem = player.get_node("%WeaponSystem")
+	var slot: StringName = ""
+	match weapon.slot:
+		"ability":
+			slot = weapon_system.get_empty_ability_slot()
+		var anything:
+			slot = anything
+	
+	if not weapon_system.can_add(slot):
+		return
+	
+	var player_data = Session.player_data[player_id]
+	player_data["money"] -= weapon.cost
+	
+	weapon_system.add(weapon.weapon_system_scene.instantiate(),slot)

gui/buy_menu/shop.gd.uid

@@ -0,0 +1 @@
+uid://hyldsai23dh4