Don't predict other players in solo

src/game/client/gameclient.cpp

@@ -1381,6 +1381,8 @@ void CGameClient::OnNewSnapshot()
 					pClient->m_HasTelegunLaser = pCharacterData->m_Flags & CHARACTERFLAG_TELEGUN_LASER;
 
 					pClient->m_Predicted.ReadDDNet(pCharacterData);
+
+					m_Teams.SetSolo(Item.m_ID, pClient->m_Solo);
 				}
 			}
 			else if(Item.m_Type == NETOBJTYPE_SPECCHAR)
@@ -2441,9 +2443,8 @@ void CGameClient::UpdatePrediction()
 		}
 
 	// update the local gameworld with the new snapshot
-	m_GameWorld.m_Teams = m_Teams;
+	m_GameWorld.NetObjBegin(m_Teams, m_Snap.m_LocalClientID);
 
-	m_GameWorld.NetObjBegin();
 	for(int i = 0; i < MAX_CLIENTS; i++)
 		if(m_Snap.m_aCharacters[i].m_Active)
 		{
@@ -2457,7 +2458,7 @@ void CGameClient::UpdatePrediction()
 	for(const CSnapEntities &EntData : SnapEntities())
 		m_GameWorld.NetObjAdd(EntData.m_Item.m_ID, EntData.m_Item.m_Type, EntData.m_pData, EntData.m_pDataEx);
 
-	m_GameWorld.NetObjEnd(m_Snap.m_LocalClientID);
+	m_GameWorld.NetObjEnd();
 }
 
 void CGameClient::UpdateRenderedCharacters()
@@ -2476,7 +2477,8 @@ void CGameClient::UpdateRenderedCharacters()
 			Client()->IntraGameTick(g_Config.m_ClDummy));
 		vec2 Pos = UnpredPos;
 
-		if(Predict() && (i == m_Snap.m_LocalClientID || (AntiPingPlayers() && !IsOtherTeam(i))))
+		CCharacter *pChar = m_PredictedWorld.GetCharacterByID(i);
+		if(Predict() && (i == m_Snap.m_LocalClientID || (AntiPingPlayers() && !IsOtherTeam(i))) && pChar)
 		{
 			m_aClients[i].m_Predicted.Write(&m_aClients[i].m_RenderCur);
 			m_aClients[i].m_PrevPredicted.Write(&m_aClients[i].m_RenderPrev);
@@ -2491,8 +2493,7 @@ void CGameClient::UpdateRenderedCharacters()
 			if(i == m_Snap.m_LocalClientID)
 			{
 				m_aClients[i].m_IsPredictedLocal = true;
-				CCharacter *pChar = m_PredictedWorld.GetCharacterByID(i);
+				if(AntiPingGunfire() && ((pChar->m_NinjaJetpack && pChar->m_FreezeTime == 0) || m_Snap.m_aCharacters[i].m_Cur.m_Weapon != WEAPON_NINJA || m_Snap.m_aCharacters[i].m_Cur.m_Weapon == m_aClients[i].m_Predicted.m_ActiveWeapon))
-				if(pChar && AntiPingGunfire() && ((pChar->m_NinjaJetpack && pChar->m_FreezeTime == 0) || m_Snap.m_aCharacters[i].m_Cur.m_Weapon != WEAPON_NINJA || m_Snap.m_aCharacters[i].m_Cur.m_Weapon == m_aClients[i].m_Predicted.m_ActiveWeapon))
 				{
 					m_aClients[i].m_RenderCur.m_AttackTick = pChar->GetAttackTick();
 					if(m_Snap.m_aCharacters[i].m_Cur.m_Weapon != WEAPON_NINJA && !(pChar->m_NinjaJetpack && pChar->Core()->m_ActiveWeapon == WEAPON_GUN))

src/game/client/prediction/gameworld.cpp

@@ -377,8 +377,16 @@ void CGameWorld::CreateExplosion(vec2 Pos, int Owner, int Weapon, bool NoDamage,
 	}
 }
 
-void CGameWorld::NetObjBegin()
+bool CGameWorld::IsLocalTeam(int OwnerID)
 {
+	return OwnerID < 0 || m_Teams.CanCollide(m_LocalClientID, OwnerID);
+}
+
+void CGameWorld::NetObjBegin(CTeamsCore Teams, int LocalClientID)
+{
+	m_Teams = Teams;
+	m_LocalClientID = LocalClientID;
+
 	for(int i = 0; i < NUM_ENTTYPES; i++)
 		for(CEntity *pEnt = FindFirst(i); pEnt; pEnt = pEnt->TypeNext())
 		{
@@ -391,6 +399,8 @@ void CGameWorld::NetObjBegin()
 
 void CGameWorld::NetCharAdd(int ObjID, CNetObj_Character *pCharObj, CNetObj_DDNetCharacter *pExtended, int GameTeam, bool IsLocal)
 {
+	if(IsLocalTeam(ObjID))
+	{
 		CCharacter *pChar;
 		if((pChar = (CCharacter *)GetEntity(ObjID, ENTTYPE_CHARACTER)))
 		{
@@ -405,6 +415,7 @@ void CGameWorld::NetCharAdd(int ObjID, CNetObj_Character *pCharObj, CNetObj_DDNe
 
 		if(pChar)
 			pChar->m_GameTeam = GameTeam;
+	}
 }
 
 void CGameWorld::NetObjAdd(int ObjID, int ObjType, const void *pObjData, const CNetObj_EntityEx *pDataEx)
@@ -412,6 +423,9 @@ void CGameWorld::NetObjAdd(int ObjID, int ObjType, const void *pObjData, const C
 	if((ObjType == NETOBJTYPE_PROJECTILE || ObjType == NETOBJTYPE_DDRACEPROJECTILE || ObjType == NETOBJTYPE_DDNETPROJECTILE) && m_WorldConfig.m_PredictWeapons)
 	{
 		CProjectileData Data = ExtractProjectileInfo(ObjType, pObjData, this, pDataEx);
+		if(!IsLocalTeam(Data.m_Owner))
+			return;
+
 		CProjectile NetProj = CProjectile(this, ObjID, &Data);
 
 		if(NetProj.m_Type != WEAPON_SHOTGUN && absolute(length(NetProj.m_Direction) - 1.f) > 0.02f) // workaround to skip grenades on ball mod
@@ -483,7 +497,7 @@ void CGameWorld::NetObjAdd(int ObjID, int ObjType, const void *pObjData, const C
 	else if((ObjType == NETOBJTYPE_LASER || ObjType == NETOBJTYPE_DDNETLASER) && m_WorldConfig.m_PredictWeapons)
 	{
 		CLaserData Data = ExtractLaserInfo(ObjType, pObjData, this, pDataEx);
-		if(Data.m_Type >= 0 && Data.m_Type != LASERTYPE_RIFLE && Data.m_Type != LASERTYPE_SHOTGUN)
+		if((Data.m_Type >= 0 && Data.m_Type != LASERTYPE_RIFLE && Data.m_Type != LASERTYPE_SHOTGUN) || !IsLocalTeam(Data.m_Owner))
 		{
 			return;
 		}
@@ -519,7 +533,7 @@ void CGameWorld::NetObjAdd(int ObjID, int ObjType, const void *pObjData, const C
 	}
 }
 
-void CGameWorld::NetObjEnd(int LocalID)
+void CGameWorld::NetObjEnd()
 {
 	// keep predicting hooked characters, based on hook position
 	for(int i = 0; i < MAX_CLIENTS; i++)

src/game/client/prediction/gameworld.h

@@ -84,11 +84,14 @@ public:
 	CGameWorld *m_pParent;
 	CGameWorld *m_pChild;
 
+	int m_LocalClientID;
+
+	bool IsLocalTeam(int OwnerID);
 	void OnModified();
-	void NetObjBegin();
+	void NetObjBegin(CTeamsCore Teams, int LocalClientID);
 	void NetCharAdd(int ObjID, CNetObj_Character *pChar, CNetObj_DDNetCharacter *pExtended, int GameTeam, bool IsLocal);
 	void NetObjAdd(int ObjID, int ObjType, const void *pObjData, const CNetObj_EntityEx *pDataEx);
-	void NetObjEnd(int LocalID);
+	void NetObjEnd();
 	void CopyWorld(CGameWorld *pFrom);
 	CEntity *FindMatch(int ObjID, int ObjType, const void *pObjData);
 	void Clear();