Stage 7.3: NPC scams (wicks, phishing airdrops, rug pools, fake support, forged transfers)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/Decentralized/CoinCustomers.cs

@@ -11,7 +11,7 @@ namespace Decentralized
     public static class CoinCustomers
     {
         private static readonly HashSet<StoreClient> Marked = new HashSet<StoreClient>();
-        private static int markDay = -1;
+        private static int markDay = -1, supportDay = -1;
 
         public static void Subscribe()
         {
@@ -152,7 +152,7 @@ namespace Decentralized
                 c.mainDialogue.SetText(c.displayName, "CRT.").SetEndAction(() => { });
                 c.AddBasicDialog();
                 c.CompleteClientCreation();
-                Mark(c, Assets.CRT);
+                Mark(c, Assets.CRT, false);
                 Log.Info($"用币付款顾客（测试）已设置，钱包污点 {Session.Data.Hot.Taint:0.##}，当前顾客 {PlayerStore.Instance.currentClientInstance?.GetClientBlueprint()?.identifier}，队列 {PlayerStore.Instance.storeClientManager.clientStack.Count} 人");
                 PlayerStore.Instance.currentClientInstance = null;   // 测试：丢掉在场的顾客（开局的高利贷者不可遣散）
                 PlayerStore.Instance.storeClientManager.clientStack.Insert(0, c);
@@ -171,29 +171,80 @@ namespace Decentralized
             {
                 int day = StoreStation.GetDayCounter();
                 if (day != markDay) { Marked.Clear(); markDay = day; }
+                // 假客服：一天最多一次
+                if (day >= Tuning.ScamMinDay && supportDay != day)
+                {
+                    supportDay = day;
+                    if (Session.Data.Rng.Chance(Tuning.FakeSupportChance)) manager.AddClient(FakeSupport());
+                }
                 foreach (var c in manager.clientStack)
                 {
                     if (c == null || c.isSecurity || Marked.Contains(c) || c.clientIntent != StoreClient.ClientIntent.BUY || c.isNoContributeToEvidence) continue;
                     Marked.Add(c);
                     string asset = CoinPayment.AssetFor(c.clientFaction);
                     if (asset == null || !Session.Data.Rng.Chance(CoinPayment.Chance(asset))) continue;
-                    Mark(c, asset);
+                    Mark(c, asset, day >= Tuning.ScamMinDay && Session.Data.Rng.Chance(Tuning.FakeTransferShare));
                 }
             });
         }
 
-        private static void Mark(StoreClient c, string asset)
+        /// <summary>
+        /// 标成用币付款的顾客。开口先说用什么币付：正常的说"链上确认要一会儿"；骗子（伪造转账）说"已经转了，给你看截图，快给货"——
+        /// 成交后信用点照样被扣回，币却不会到账。玩家能做的就是听清这句话，不卖给他。
+        /// </summary>
+        private static void Mark(StoreClient c, string asset, bool fake)
         {
             var before = c.onItemBought;
             double total = 0;   // 这位顾客这一单一共付了多少币
             c.isNoContributeToEvidence = true;
+            var intro = new Dialogue().SetText(c.displayName, L.T(fake ? "coinpay.intro.fake" : "coinpay.intro", asset));
+            intro.SetNextDialogue(c.mainDialogue);
+            c.mainDialogue = intro;
             c.onItemBought = (item, cost) =>
             {
                 before?.Invoke(item, cost);
-                Log.Guard("用币付款成交", () => { total += Pay(c, asset, item, cost); Say(c, asset, total); });
+                Log.Guard("用币付款成交", () =>
+                {
+                    if (fake) { FakePay(c, asset, item, cost); total += cost / Session.Price(asset); }
+                    else total += Pay(c, asset, item, cost);
+                    Say(c, asset, total);
+                });
             };
         }
 
+        /// <summary>伪造转账：信用点扣回（顾客没真付），币不会到账，晨间日志说明。</summary>
+        private static void FakePay(StoreClient client, string asset, GameItem item, int cost)
+        {
+            if (cost <= 0) return;
+            ModHelper.AddCredit(-cost, false);
+            Session.Data.FakePaidToday.Add(L.T("coinpay.fake.entry", client.displayName, item.name, cost));
+            Log.Info($"伪造转账：{client.displayName} 拿走 {item.name}（{cost} 信用点），{asset} 不会到账");
+        }
+
+        /// <summary>假客服：自称 Poinbase 客服，说账户被风控，要把 CRC 转到"安全地址"。Poinbase 从不上门，也从不要求转账；转过去的币就没了。</summary>
+        public static StoreClient FakeSupportForTest() => FakeSupport();
+
+        private static StoreClient FakeSupport()
+        {
+            var d = Session.Data;
+            string addr = ChainAddress.Make(d.Rng.NextUInt());
+            d.Scams.ScamAddrs.Add(addr);
+            int amount = 100 * d.Rng.Range(3, 15);
+            var c = new StoreClient
+            {
+                identifier = "pd_fake_support", displayName = L.T("scam.support.name"), spriteName = SpriteDict.GetRandomUpperSpriteName(),
+                clientIntent = StoreClient.ClientIntent.DIALOGUE,
+            };
+            c.mainDialogue.SetText(c.displayName, L.T("scam.support.1")).NextDialogue()
+                .SetText(c.displayName, L.T("scam.support.2", amount, addr)).NextDialogue()
+                .SetText(c.displayName, L.T("scam.support.3"));
+            ModHelper.SetClientSource(c, ModInfo.Id);
+            c.AddBasicDialog();
+            c.CompleteClientCreation();
+            Log.Info($"假客服上门：要 {amount} CRC 转到 {addr}");
+            return c;
+        }
+
         /// <summary>成交后顾客说的话：告诉玩家这单是币到账，不是信用点。</summary>
         private static void Say(StoreClient client, string asset, double total)
         {