Terraria.ModLoader.NPCLoader.OnChatButtonClicked C# (CSharp) Method

        public static void OnChatButtonClicked(bool firstButton)
        {
            NPC npc = Main.npc[Main.player[Main.myPlayer].talkNPC];
            if (npc.modNPC != null)
            {
                bool shop = false;
                npc.modNPC.OnChatButtonClicked(firstButton, ref shop);
                Main.PlaySound(12, -1, -1, 1);
                if (shop)
                {
                    Main.playerInventory = true;
                    Main.npcChatText = "";
                    Main.npcShop = Main.MaxShopIDs - 1;
                    Main.instance.shop[Main.npcShop].SetupShop(npc.type);
                }
            }
        }