Fix save/swap with draggers

src/game/server/ddracecommands.cpp

@@ -870,7 +870,7 @@ void CGameContext::ConDrySave(IConsole::IResult *pResult, void *pUserData)
 
 	CSaveTeam SavedTeam;
 	int Team = pSelf->GetDDRaceTeam(pResult->m_ClientId);
-	int Result = SavedTeam.Save(pSelf, Team, true);
+	ESaveResult Result = SavedTeam.Save(pSelf, Team, true);
 	if(CSaveTeam::HandleSaveError(Result, pResult->m_ClientId, pSelf))
 		return;
 

src/game/server/entities/dragger_beam.cpp

@@ -10,6 +10,7 @@
 #include <game/mapitems.h>
 
 #include <game/server/gamecontext.h>
+#include <game/server/save.h>
 
 CDraggerBeam::CDraggerBeam(CGameWorld *pGameWorld, CDragger *pDragger, vec2 Pos, float Strength, bool IgnoreWalls,
 	int ForClientId, int Layer, int Number) :
@@ -140,3 +141,8 @@ void CDraggerBeam::SwapClients(int Client1, int Client2)
 {
 	m_ForClientId = m_ForClientId == Client1 ? Client2 : m_ForClientId == Client2 ? Client1 : m_ForClientId;
 }
+
+ESaveResult CDraggerBeam::BlocksSave(int ClientId)
+{
+	return m_ForClientId == ClientId ? ESaveResult::DRAGGER_ACTIVE : ESaveResult::SUCCESS;
+}

src/game/server/entities/dragger_beam.h

@@ -39,6 +39,7 @@ public:
 	void Tick() override;
 	void Snap(int SnappingClient) override;
 	void SwapClients(int Client1, int Client2) override;
+	ESaveResult BlocksSave(int ClientId) override;
 };
 
 #endif // GAME_SERVER_ENTITIES_DRAGGER_BEAM_H

src/game/server/entity.h

@@ -8,6 +8,7 @@
 #include <game/alloc.h>
 
 #include "gameworld.h"
+#include "save.h"
 
 class CCollision;
 class CGameContext;
@@ -138,6 +139,15 @@ public: // TODO: Maybe make protected
 	*/
 	virtual void SwapClients(int Client1, int Client2) {}
 
+	/*
+		Function: BlocksSave
+			Called to check if a team can be saved
+
+		Arguments:
+			ClientId - Client ID
+	*/
+	virtual ESaveResult BlocksSave(int ClientId) { return ESaveResult::SUCCESS; }
+
 	/*
 		Function GetOwnerId
 		Returns:

src/game/server/gameworld.cpp

@@ -270,6 +270,21 @@ void CGameWorld::Tick()
 	}
 }
 
+ESaveResult CGameWorld::BlocksSave(int ClientId)
+{
+	// check all objects
+	for(auto *pEnt : m_apFirstEntityTypes)
+		for(; pEnt;)
+		{
+			m_pNextTraverseEntity = pEnt->m_pNextTypeEntity;
+			ESaveResult Result = pEnt->BlocksSave(ClientId);
+			if(Result != ESaveResult::SUCCESS)
+				return Result;
+			pEnt = m_pNextTraverseEntity;
+		}
+	return ESaveResult::SUCCESS;
+}
+
 void CGameWorld::SwapClients(int Client1, int Client2)
 {
 	// update all objects

src/game/server/gameworld.h

@@ -5,6 +5,8 @@
 
 #include <game/gamecore.h>
 
+#include "save.h"
+
 #include <vector>
 
 class CEntity;
@@ -153,6 +155,12 @@ public:
 	*/
 	void SwapClients(int Client1, int Client2);
 
+	/*
+		Function: BlocksSave
+			Checks if any entity would block /save
+	*/
+	ESaveResult BlocksSave(int ClientId);
+
 	// DDRace
 	void ReleaseHooked(int ClientId);
 

src/game/server/save.cpp

@@ -490,30 +490,30 @@ CSaveTeam::~CSaveTeam()
 	delete[] m_pSavedTees;
 }
 
-int CSaveTeam::Save(CGameContext *pGameServer, int Team, bool Dry)
+ESaveResult CSaveTeam::Save(CGameContext *pGameServer, int Team, bool Dry)
 {
 	if(g_Config.m_SvTeam != SV_TEAM_FORCED_SOLO && (Team <= 0 || MAX_CLIENTS <= Team))
-		return 1;
+		return ESaveResult::TEAM_FLOCK;
 
 	IGameController *pController = pGameServer->m_pController;
 	CGameTeams *pTeams = &pController->Teams();
 
 	if(pTeams->TeamFlock(Team))
 	{
-		return 5;
+		return ESaveResult::TEAM_0_MODE;
 	}
 
 	m_MembersCount = pTeams->Count(Team);
 	if(m_MembersCount <= 0)
 	{
-		return 2;
+		return ESaveResult::TEAM_NOT_FOUND;
 	}
 
 	m_TeamState = pTeams->GetTeamState(Team);
 
 	if(m_TeamState != CGameTeams::TEAMSTATE_STARTED)
 	{
-		return 4;
+		return ESaveResult::NOT_STARTED;
 	}
 
 	m_HighestSwitchNumber = pGameServer->Collision()->m_HighestSwitchNumber;
@@ -529,13 +529,16 @@ int CSaveTeam::Save(CGameContext *pGameServer, int Team, bool Dry)
 		if(pTeams->m_Core.Team(p->GetPlayer()->GetCid()) != Team)
 			continue;
 		if(m_MembersCount == j)
-			return 3;
+			return ESaveResult::CHAR_NOT_FOUND;
+		ESaveResult Result = pGameServer->m_World.BlocksSave(p->GetPlayer()->GetCid());
+		if(Result != ESaveResult::SUCCESS)
+			return Result;
 		m_pSavedTees[j].Save(p);
 		aPlayerCids[j] = p->GetPlayer()->GetCid();
 		j++;
 	}
 	if(m_MembersCount != j)
-		return 3;
+		return ESaveResult::CHAR_NOT_FOUND;
 
 	if(pGameServer->Collision()->m_HighestSwitchNumber)
 	{
@@ -555,32 +558,32 @@ int CSaveTeam::Save(CGameContext *pGameServer, int Team, bool Dry)
 	{
 		pGameServer->m_World.RemoveEntitiesFromPlayers(aPlayerCids, m_MembersCount);
 	}
-	return 0;
+	return ESaveResult::SUCCESS;
 }
 
-bool CSaveTeam::HandleSaveError(int Result, int ClientId, CGameContext *pGameContext)
+bool CSaveTeam::HandleSaveError(ESaveResult Result, int ClientId, CGameContext *pGameContext)
 {
 	switch(Result)
 	{
-	case 0:
+	case ESaveResult::SUCCESS:
 		return false;
-	case 1:
+	case ESaveResult::TEAM_FLOCK:
 		pGameContext->SendChatTarget(ClientId, "You have to be in a team (from 1-63)");
 		break;
-	case 2:
+	case ESaveResult::TEAM_NOT_FOUND:
 		pGameContext->SendChatTarget(ClientId, "Could not find your Team");
 		break;
-	case 3:
+	case ESaveResult::CHAR_NOT_FOUND:
 		pGameContext->SendChatTarget(ClientId, "To save all players in your team have to be alive and not in '/spec'");
 		break;
-	case 4:
+	case ESaveResult::NOT_STARTED:
 		pGameContext->SendChatTarget(ClientId, "Your team has not started yet");
 		break;
-	case 5:
+	case ESaveResult::TEAM_0_MODE:
 		pGameContext->SendChatTarget(ClientId, "Team can't be saved while in team 0 mode");
 		break;
-	default: // this state should never be reached
-		pGameContext->SendChatTarget(ClientId, "Unknown error while saving");
+	case ESaveResult::DRAGGER_ACTIVE:
+		pGameContext->SendChatTarget(ClientId, "Team can't be saved while a dragger is active");
 		break;
 	}
 	return true;

src/game/server/save.h

@@ -19,6 +19,17 @@ enum
 	NUM_RESCUEMODES
 };
 
+enum class ESaveResult
+{
+	SUCCESS,
+	TEAM_FLOCK,
+	TEAM_NOT_FOUND,
+	CHAR_NOT_FOUND,
+	NOT_STARTED,
+	TEAM_0_MODE,
+	DRAGGER_ACTIVE
+};
+
 class CSaveTee
 {
 public:
@@ -148,13 +159,13 @@ public:
 	int FromString(const char *pString);
 	// returns true if a team can load, otherwise writes a nice error Message in pMessage
 	bool MatchPlayers(const char (*paNames)[MAX_NAME_LENGTH], const int *pClientId, int NumPlayer, char *pMessage, int MessageLen) const;
-	int Save(CGameContext *pGameServer, int Team, bool Dry = false);
+	ESaveResult Save(CGameContext *pGameServer, int Team, bool Dry = false);
 	bool Load(CGameContext *pGameServer, int Team, bool KeepCurrentWeakStrong);
 
 	CSaveTee *m_pSavedTees = nullptr;
 
 	// returns true if an error occurred
-	static bool HandleSaveError(int Result, int ClientId, CGameContext *pGameContext);
+	static bool HandleSaveError(ESaveResult Result, int ClientId, CGameContext *pGameContext);
 
 private:
 	CCharacter *MatchCharacter(CGameContext *pGameServer, int ClientId, int SaveId, bool KeepCurrentCharacter) const;

src/game/server/score.cpp

@@ -303,7 +303,7 @@ void CScore::SaveTeam(int ClientId, const char *pCode, const char *pServer)
 
 	auto SaveResult = std::make_shared<CScoreSaveResult>(ClientId);
 	SaveResult->m_SaveId = RandomUuid();
-	int Result = SaveResult->m_SavedTeam.Save(GameServer(), Team);
+	ESaveResult Result = SaveResult->m_SavedTeam.Save(GameServer(), Team);
 	if(CSaveTeam::HandleSaveError(Result, ClientId, GameServer()))
 		return;
 	pController->Teams().SetSaving(Team, SaveResult);