pull in project-slippi/Ishiiruka/commit/5a77120289f7542302a2eb53b9ee2bce43d490f6

enforce stage for fixed rules modes

Source/Core/Core/HW/EXI/EXI_DeviceSlippi.cpp

@@ -27,6 +27,7 @@
 #include "Core/Host.h"
 #include "Core/NetPlayClient.h"
 #include "Core/PowerPC/PowerPC.h"
+#include "Core/Slippi/SlippiMatchmaking.h"
 #include "Core/Slippi/SlippiPlayback.h"
 #include "Core/Slippi/SlippiReplayComm.h"
 #include "Core/State.h"
@@ -1508,7 +1509,6 @@ bool CEXISlippi::isDisconnected()
   return status != SlippiNetplayClient::SlippiConnectStatus::NET_CONNECT_STATUS_CONNECTED;
 }
 
-static int tempTestCount = 0;
 void CEXISlippi::handleOnlineInputs(u8* payload)
 {
   m_read_queue.clear();
@@ -1829,10 +1829,23 @@ void CEXISlippi::startFindMatch(u8* payload)
   // give someone an early error before they even queue so that they wont enter the queue and make
   // someone else get force removed from queue and have to requeue
   auto directMode = SlippiMatchmaking::OnlinePlayMode::DIRECT;
-  if (search.mode < directMode && localSelections.characterId >= 26)
+  if (SlippiMatchmaking::IsFixedRulesMode(search.mode))
   {
-    forcedError = "The character you selected is not allowed in this mode";
-    return;
+    // Character check
+    if (localSelections.characterId >= 26)
+    {
+      forcedError = "The character you selected is not allowed in this mode";
+      return;
+    }
+
+    // Stage check
+    if (localSelections.isStageSelected &&
+        std::find(singlesStages.begin(), singlesStages.end(), localSelections.stageId) ==
+            singlesStages.end())
+    {
+      forcedError = "The stage being requested is not allowed in this mode";
+      return;
+    }
   }
 
 #ifndef LOCAL_TESTING
@@ -2070,14 +2083,53 @@ void CEXISlippi::prepareOnlineMatchState()
       if (rps[i].characterId >= 26)
         remoteCharOk = false;
     }
-    if (lastSearch.mode < directMode && (!localCharOk || !remoteCharOk))
+
+    // TODO: This is annoying, ideally remotePlayerSelections would just include everyone including
+    // the local player
+    // TODO: Would also simplify some logic in the Netplay class
+    std::vector<SlippiPlayerSelections> orderedSelections(4);
+    orderedSelections[lps.playerIdx] = lps;
+    for (int i = 0; i < remotePlayerCount; i++)
     {
-      // If we get here, someone is doing something bad, clear the lobby
-      handleConnectionCleanup();
+      orderedSelections[rps[i].playerIdx] = rps[i];
+    }
+
+    // Overwrite stage information. Make sure everyone loads the same stage
+    u16 stageId = 0x1F;  // Default to battlefield if there was no selection
+    for (auto selections : orderedSelections)
+    {
+      if (!selections.isStageSelected)
+        continue;
+
+      // Stage selected by this player, use that selection
+      stageId = selections.stageId;
+      break;
+    }
+
+    if (SlippiMatchmaking::IsFixedRulesMode(lastSearch.mode))
+    {
+      // If we enter one of these conditions, someone is doing something bad, clear the lobby
       if (!localCharOk)
+      {
+        handleConnectionCleanup();
         forcedError = "The character you selected is not allowed in this mode";
-      prepareOnlineMatchState();
-      return;
+        prepareOnlineMatchState();
+        return;
+      }
+
+      if (!remoteCharOk)
+      {
+        handleConnectionCleanup();
+        prepareOnlineMatchState();
+        return;
+      }
+
+      if (std::find(singlesStages.begin(), singlesStages.end(), stageId) == singlesStages.end())
+      {
+        handleConnectionCleanup();
+        prepareOnlineMatchState();
+        return;
+      }
     }
 
     // Overwrite local player character
@@ -2121,20 +2173,6 @@ void CEXISlippi::prepareOnlineMatchState()
       onlineMatchBlock[0x61 + 3 * 0x24] = 0;
     }
 
-    // Overwrite stage
-    u16 stageId;
-    if (isDecider)
-    {
-      stageId = lps.isStageSelected ? lps.stageId : rps[0].stageId;
-    }
-    else
-    {
-      stageId = rps[0].isStageSelected ? rps[0].stageId : lps.stageId;
-    }
-
-    u16* stage = (u16*)&onlineMatchBlock[0xE];
-    *stage = Common::swap16(stageId);
-
     // Set rng offset
     rngOffset = isDecider ? lps.rngOffset : rps[0].rngOffset;
     WARN_LOG(SLIPPI_ONLINE, "Rng Offset: 0x%x", rngOffset);
@@ -2244,22 +2282,22 @@ void CEXISlippi::prepareOnlineMatchState()
   m_read_queue.insert(m_read_queue.end(), onlineMatchBlock.begin(), onlineMatchBlock.end());
 }
 
+std::vector<u16> CEXISlippi::singlesStages = {
+    // 0x2,  // FoD
+    0x3,   // Pokemon
+    0x8,   // Yoshi's Story
+    0x1C,  // Dream Land
+    0x1F,  // Battlefield
+    0x20,  // Final Destination
+};
+
 u16 CEXISlippi::getRandomStage()
 {
   static u16 selectedStage;
 
-  static std::vector<u16> stages = {
-      0x2,   // FoD
-      0x3,   // Pokemon
-      0x8,   // Yoshi's Story
-      0x1C,  // Dream Land
-      0x1F,  // Battlefield
-      0x20,  // Final Destination
-  };
-
   // Reset stage pool if it's empty
   if (stagePool.empty())
-    stagePool.insert(stagePool.end(), stages.begin(), stages.end());
+    stagePool.insert(stagePool.end(), singlesStages.begin(), singlesStages.end());
 
   // Get random stage
   int randIndex = generator() % stagePool.size();

Source/Core/Core/HW/EXI/EXI_DeviceSlippi.h

@@ -251,5 +251,7 @@ private:
 
   std::map<s32, std::unique_ptr<SlippiSavestate>> activeSavestates;
   std::deque<std::unique_ptr<SlippiSavestate>> availableSavestates;
+
+  static std::vector<u16> singlesStages;
 };
 }  // namespace ExpansionInterface

Source/Core/Core/Slippi/SlippiMatchmaking.cpp

@@ -85,6 +85,12 @@ std::unique_ptr<SlippiNetplayClient> SlippiMatchmaking::GetNetplayClient()
   return std::move(m_netplayClient);
 }
 
+bool IsFixedRulesMode(SlippiMatchmaking::OnlinePlayMode mode)
+{
+  return mode == SlippiMatchmaking::OnlinePlayMode::UNRANKED ||
+         mode == SlippiMatchmaking::OnlinePlayMode::RANKED;
+}
+
 void SlippiMatchmaking::sendMessage(json msg)
 {
   enet_uint32 flags = ENET_PACKET_FLAG_RELIABLE;

Source/Core/Core/Slippi/SlippiMatchmaking.h

@@ -57,6 +57,7 @@ public:
   std::vector<SlippiUser::UserInfo> GetPlayerInfo();
   std::string GetPlayerName(u8 port);
   u8 RemotePlayerCount();
+  static bool IsFixedRulesMode(OnlinePlayMode mode);
 
 protected:
   const std::string MM_HOST_DEV = "35.197.121.196";  // Dev host