PSO Peeps: block boosted clients from Vanilla and Hardcore

Add HAS_PSO_PEEPS_XP_PATCH for future V2/GC client-function XP patches.

Unify boosted-client proxy blocking so Vanilla/Hardcore reject:
- PC v2 clients using boosted BattleParams
- legacy boosted-disc listener ports
- future clients with the PSO Peeps XP patch flag

Normal unpatched V2/GC clients remain allowed.

src/Client.hh

@@ -83,6 +83,7 @@ public:
     ITEM_DROP_NOTIFICATIONS_1                  = 0x0000000400000000,
     ITEM_DROP_NOTIFICATIONS_2                  = 0x0000000800000000,
     HAS_ENEMY_DAMAGE_SYNC_PATCH                = 0x0000001000000000, // Must be same as in EnemyDamageSync*.s
+    HAS_PSO_PEEPS_XP_PATCH                    = 0x0000200000000000, // Must be same as in PSO Peeps XP patches
 
     // Proxy option flags
     PROXY_SAVE_FILES                           = 0x0000002000000000,

src/ReceiveCommands.cc

@@ -3112,25 +3112,26 @@ static asio::awaitable<void> on_10_proxy_destinations(shared_ptr<Client> c, uint
       send_message_box(c, "$C6No such destination exists.");
       c->channel->disconnect();
     } else {
-      // PSO Peeps: boosted GC discs enter through separate frontdoor ports after
+      // PSO Peeps: boosted clients may not enter Vanilla/Hardcore.
-      // pc_console_detect. Do not allow x5/x10 GC discs into Vanilla.
+      // PC v2 receives boosted BattleParams via the patch server. DC/GC can be
-      if ((c->listener_port == 9105 || c->listener_port == 9110 ||
+      // boosted either by old boosted-disc listener ports or by the PSO Peeps XP
-           c->listener_port == 9201 || c->listener_port == 9202) && dest->second == 19203) {
+      // client-function patch, which sets HAS_PSO_PEEPS_XP_PATCH.
-        send_message_box(c, "$C6Vanilla Ship is not available from boosted discs.\n\n$C7Use the normal disc for Vanilla.");
+      const bool is_vanilla_or_hardcore_dest =
-        co_return;
+          (dest->second == 19203 || dest->second == 19230 || dest->second == 19530);
-      }
+      const bool is_boosted_disc =
-      // PSO Peeps: boosted GC discs enter through separate frontdoor ports after
+          (c->listener_port == 9105 || c->listener_port == 9110 ||
-      // pc_console_detect. Do not allow x5/x10 GC discs into Vanilla.
+           c->listener_port == 9201 || c->listener_port == 9202 ||
-      if ((c->listener_port == 9105 || c->listener_port == 9110 ||
+           c->listener_port == 19105 || c->listener_port == 19110);
-           c->listener_port == 9201 || c->listener_port == 9202) && dest->second == 19203) {
+      const bool is_pc_v2_boosted = (c->version() == Version::PC_V2);
-        send_message_box(c, "$C6Vanilla Ship is not available from boosted discs.\n\n$C7Use the normal disc for Vanilla.");
+      const bool has_psopeeps_xp_patch =
-        co_return;
+          c->check_flag(Client::Flag::HAS_PSO_PEEPS_XP_PATCH);
-      }
+
-      // PSO Peeps: PC v2 clients receive boosted BattleParams via the patch
+      if (is_vanilla_or_hardcore_dest &&
-      // server. Vanilla and Hardcore run base XP rates and are incompatible.
+          (is_boosted_disc || is_pc_v2_boosted || has_psopeeps_xp_patch)) {
-      if (c->version() == Version::PC_V2 &&
+        send_message_box(c,
-          (dest->second == 19230 || dest->second == 19530)) {
+            "$C6Vanilla and Hardcore are not available\n"
-        send_message_box(c, "$C6This ship is not available\nfor PSO PC.\n\n$C7Vanilla and Hardcore run\nbase XP rates.");
+            "while boosted XP is active.\n\n"
+            "$C7Use Live, Test, or Dev.");
         co_return;
       }