Add possibility of modifying dynamic objects behavior

Client/game_sa/CFxManagerSA.cpp

@@ -67,6 +67,18 @@ void CFxManagerSA::OnFxSystemSAInterfaceDestroyed(CFxSystemSAInterface* pFxSyste
         delete pFxSystemSA;
 }
 
+CFxSystemBPSAInterface* CFxManagerSA::GetFxSystemBlueprintByName(SString sName)
+{
+    using func_t = CFxSystemBPSAInterface*(__thiscall*)(CFxManagerSAInterface * pInterface, const char* pChars);
+    auto func = reinterpret_cast<func_t>(FUNC_FxManager_c__GetSystemByName);
+    return func(m_pInterface, sName);
+}
+
+bool CFxManagerSA::IsValidFxSystemBlueprintName(SString sName)
+{
+    return GetFxSystemBlueprintByName(sName) != nullptr;
+}
+
 //
 // AddToList/RemoveFromList called from CFxSystemSA constructor/destructor
 //

Client/game_sa/CFxManagerSA.h

@@ -14,6 +14,7 @@
 
 #define FUNC_FxManager_c__CreateFxSystem    0x4A9BE0
 #define FUNC_FxManager_c__DestroyFxSystem   0x4A9810
+#define FUNC_FxManager_c__GetSystemByName   0x4A9360
 
 class CFxSystemBPSAInterface;
 class CFxSystemSAInterface;
@@ -61,10 +62,12 @@ class CFxManagerSA : public CFxManager
 public:
     CFxManagerSA(CFxManagerSAInterface* pInterface) { m_pInterface = pInterface; }
     // CFxManager interface
-    CFxSystem* CreateFxSystem(const char* szBlueprint, const CVector& vecPosition, RwMatrix* pRwMatrixTag, unsigned char bSkipCameraFrustumCheck,
-                              bool bSoundEnable);
-    void       DestroyFxSystem(CFxSystem* pFxSystem);
-    void       OnFxSystemSAInterfaceDestroyed(CFxSystemSAInterface* pFxSystemSAInterface);
+    CFxSystem*              CreateFxSystem(const char* szBlueprint, const CVector& vecPosition, RwMatrix* pRwMatrixTag, unsigned char bSkipCameraFrustumCheck,
+                                           bool bSoundEnable);
+    void                    DestroyFxSystem(CFxSystem* pFxSystem);
+    void                    OnFxSystemSAInterfaceDestroyed(CFxSystemSAInterface* pFxSystemSAInterface);
+    CFxSystemBPSAInterface* GetFxSystemBlueprintByName(SString sName);
+    bool                    IsValidFxSystemBlueprintName(SString sName);
 
     // CFxManagerSA methods
     CFxSystemSA* GetFxSystem(CFxSystemSAInterface* pFxSystemSAInterface);

Client/game_sa/CGameSA.cpp

@@ -65,6 +65,12 @@ CGameSA::CGameSA()
         ModelInfo[i].SetModelID(i);
     }
 
+    // Prepare all object dynamic infos for CObjectGroupPhysicalPropertiesSA instances
+    for (int i = 0; i < OBJECTDYNAMICINFO_MAX; i++)
+    {
+        ObjectGroupsInfo[i].SetGroup(i);
+    }
+
     DEBUG_TRACE("CGameSA::CGameSA()");
     this->m_pAudioEngine = new CAudioEngineSA((CAudioEngineSAInterface*)CLASS_CAudioEngine);
     this->m_pAEAudioHardware = new CAEAudioHardwareSA((CAEAudioHardwareSAInterface*)CLASS_CAEAudioHardware);
@@ -464,6 +470,9 @@ void CGameSA::Reset()
 
         // Restore model dummies' positions
         CModelInfoSA::ResetAllVehicleDummies();
+        CModelInfoSA::RestoreAllObjectsPropertiesGroups();
+        // restore default properties of all CObjectGroupPhysicalPropertiesSA instances
+        CObjectGroupPhysicalPropertiesSA::RestoreDefaultValues();
     }
 }
 
@@ -862,3 +871,12 @@ CPed* CGameSA::GetPedContext()
         m_pPedContext = pGame->GetPools()->GetPedFromRef((DWORD)1);
     return m_pPedContext;
 }
+
+CObjectGroupPhysicalProperties* CGameSA::GetObjectGroupPhysicalProperties(unsigned char ucObjectGroup)
+{
+    DEBUG_TRACE("CObjectGroupPhysicalProperties * CGameSA::GetObjectGroupPhysicalProperties(unsigned char ucObjectGroup)");
+    if (ucObjectGroup < OBJECTDYNAMICINFO_MAX && ObjectGroupsInfo[ucObjectGroup].IsValid())
+        return &ObjectGroupsInfo[ucObjectGroup];
+
+    return nullptr;
+}

Client/game_sa/CGameSA.h

@@ -12,6 +12,7 @@
 #pragma once
 
 #include "CModelInfoSA.h"
+#include "CObjectGroupPhysicalPropertiesSA.h"
 #include "CFxManagerSA.h"
 
 #define     MAX_MEMORY_OFFSET_1_0           0xCAF008
@@ -33,6 +34,7 @@
 #define     NUM_WeaponInfosTotal            (NUM_WeaponInfosStdSkill + (3*NUM_WeaponInfosOtherSkill)) // std, (poor, pro, special)
 
 #define     MODELINFO_MAX                   26000       // Actual max is 25755
+#define     OBJECTDYNAMICINFO_MAX           160
 
 #define     FUNC_GetLevelFromPosition       0x4DD300
 
@@ -103,6 +105,7 @@ class CGameSA : public CGame
 private:
     CWeaponInfo* WeaponInfos[NUM_WeaponInfosTotal];
     CModelInfoSA ModelInfo[MODELINFO_MAX];
+    CObjectGroupPhysicalPropertiesSA ObjectGroupsInfo[OBJECTDYNAMICINFO_MAX];
 
 public:
     ZERO_ON_NEW
@@ -305,8 +308,9 @@ class CGameSA : public CGame
     CRenderWareSA*      GetRenderWareSA() { return m_pRenderWare; }
     CFxManagerSA*       GetFxManagerSA() { return m_pFxManager; }
 
-    CWeaponInfo* GetWeaponInfo(eWeaponType weapon, eWeaponSkill skill = WEAPONSKILL_STD);
-    CModelInfo*  GetModelInfo(DWORD dwModelID);
+    CWeaponInfo*                    GetWeaponInfo(eWeaponType weapon, eWeaponSkill skill = WEAPONSKILL_STD);
+    CModelInfo*                     GetModelInfo(DWORD dwModelID);
+    CObjectGroupPhysicalProperties* GetObjectGroupPhysicalProperties(unsigned char ucObjectGroup);
 
     DWORD GetSystemTime()
     {
@@ -429,39 +433,40 @@ class CGameSA : public CGame
     TaskSimpleBeHitHandler* m_pTaskSimpleBeHitHandler;
 
 private:
-    CPools*             m_pPools;
-    CPlayerInfo*        m_pPlayerInfo;
-    CProjectileInfo*    m_pProjectileInfo;
-    CRadar*             m_pRadar;
-    CRestart*           m_pRestart;
-    CClock*             m_pClock;
-    CCoronas*           m_pCoronas;
-    CCheckpoints*       m_pCheckpoints;
-    CEventList*         m_pEventList;
-    CFireManager*       m_pFireManager;
-    CGarages*           m_pGarages;
-    CHud*               m_pHud;
-    CWanted*            m_pWanted;
-    CWeather*           m_pWeather;
-    CWorld*             m_pWorld;
-    CCamera*            m_pCamera;
-    CModelInfo*         m_pModelInfo;
-    CPickups*           m_pPickups;
-    CWeaponInfo*        m_pWeaponInfo;
-    CExplosionManager*  m_pExplosionManager;
-    C3DMarkers*         m_p3DMarkers;
-    CRenderWareSA*      m_pRenderWare;
-    CHandlingManager*   m_pHandlingManager;
-    CAnimManager*       m_pAnimManager;
-    CStreaming*         m_pStreaming;
-    CVisibilityPlugins* m_pVisibilityPlugins;
-    CKeyGen*            m_pKeyGen;
-    CRopes*             m_pRopes;
-    CFx*                m_pFx;
-    CFxManagerSA*       m_pFxManager;
-    CWaterManager*      m_pWaterManager;
-    CWeaponStatManager* m_pWeaponStatsManager;
-    CPointLights*       m_pPointLights;
+    CPools*                         m_pPools;
+    CPlayerInfo*                    m_pPlayerInfo;
+    CProjectileInfo*                m_pProjectileInfo;
+    CRadar*                         m_pRadar;
+    CRestart*                       m_pRestart;
+    CClock*                         m_pClock;
+    CCoronas*                       m_pCoronas;
+    CCheckpoints*                   m_pCheckpoints;
+    CEventList*                     m_pEventList;
+    CFireManager*                   m_pFireManager;
+    CGarages*                       m_pGarages;
+    CHud*                           m_pHud;
+    CWanted*                        m_pWanted;
+    CWeather*                       m_pWeather;
+    CWorld*                         m_pWorld;
+    CCamera*                        m_pCamera;
+    CModelInfo*                     m_pModelInfo;
+    CPickups*                       m_pPickups;
+    CWeaponInfo*                    m_pWeaponInfo;
+    CExplosionManager*              m_pExplosionManager;
+    C3DMarkers*                     m_p3DMarkers;
+    CRenderWareSA*                  m_pRenderWare;
+    CHandlingManager*               m_pHandlingManager;
+    CAnimManager*                   m_pAnimManager;
+    CStreaming*                     m_pStreaming;
+    CVisibilityPlugins*             m_pVisibilityPlugins;
+    CKeyGen*                        m_pKeyGen;
+    CRopes*                         m_pRopes;
+    CFx*                            m_pFx;
+    CFxManagerSA*                   m_pFxManager;
+    CWaterManager*                  m_pWaterManager;
+    CWeaponStatManager*             m_pWeaponStatsManager;
+    CPointLights*                   m_pPointLights;
+    CObjectGroupPhysicalProperties* m_pObjectGroupPhysicalProperties;
 
     CPad*                     m_pPad;
     CTheCarGenerators*        m_pTheCarGenerators;

Client/game_sa/CModelInfoSA.cpp

@@ -20,6 +20,7 @@ std::map<unsigned short, int>
 std::map<DWORD, float>                                                                CModelInfoSA::ms_ModelDefaultLodDistanceMap;
 std::map<DWORD, BYTE>                                                                 CModelInfoSA::ms_ModelDefaultAlphaTransparencyMap;
 std::unordered_map<CVehicleModelInfoSAInterface*, std::map<eVehicleDummies, CVector>> CModelInfoSA::ms_ModelDefaultDummiesPosition;
+std::unordered_map<DWORD, unsigned short>                                             CModelInfoSA::ms_OriginalObjectPropertiesGroups;
 
 CModelInfoSA::CModelInfoSA()
 {
@@ -1373,6 +1374,46 @@ void CModelInfoSA::ResetSupportedUpgrades()
     m_ModelSupportedUpgrades.Reset();
 }
 
+void CModelInfoSA::SetObjectPropertiesGroup(unsigned short usNewGroup)
+{
+    unsigned short usOrgGroup = GetObjectPropertiesGroup();
+    if (usOrgGroup == usNewGroup)
+        return;
+
+    if (!MapFind(ms_OriginalObjectPropertiesGroups, m_dwModelID))
+        MapSet(ms_OriginalObjectPropertiesGroups, m_dwModelID, usOrgGroup);
+
+    GetInterface()->usDynamicIndex = usNewGroup;
+}
+
+unsigned short CModelInfoSA::GetObjectPropertiesGroup()
+{
+    unsigned short usGroup = GetInterface()->usDynamicIndex;
+    if (usGroup == 0xFFFF)
+        usGroup = 0;
+
+    return usGroup;
+}
+
+void CModelInfoSA::RestoreObjectPropertiesGroup()
+{
+    unsigned short* usGroupInMap = MapFind(ms_OriginalObjectPropertiesGroups, m_dwModelID);
+    if (usGroupInMap)
+    {
+        GetInterface()->usDynamicIndex = *usGroupInMap;
+        MapRemove(ms_OriginalObjectPropertiesGroups, m_dwModelID);
+    }
+}
+
+void CModelInfoSA::RestoreAllObjectsPropertiesGroups()
+{
+    for (const auto& pair : ms_OriginalObjectPropertiesGroups)
+    {
+        pGame->GetModelInfo(pair.first)->GetInterface()->usDynamicIndex = pair.second;
+    }
+    ms_OriginalObjectPropertiesGroups.clear();
+}
+
 eModelInfoType CModelInfoSA::GetModelType()
 {
     return ((eModelInfoType(*)())m_pInterface->VFTBL->GetModelType)();

Client/game_sa/CModelInfoSA.h

@@ -139,16 +139,7 @@ class CBaseModelInfoSAInterface
     unsigned char  ucNumOf2DEffects : 8;            // +13
     unsigned short usUnknown : 16;                  // +14     Something with 2d effects
 
-    unsigned char ucDynamicIndex : 8;            // +16
-
-    unsigned char dwUnknownFlag9 : 1;            // +17
-    unsigned char dwUnknownFlag10 : 1;
-    unsigned char dwUnknownFlag11 : 1;
-    unsigned char dwUnknownFlag12 : 1;
-    unsigned char dwUnknownFlag13 : 1;
-    unsigned char dwUnknownFlag14 : 1;
-    unsigned char dwUnknownFlag15 : 1;
-    unsigned char dwUnknownFlag16 : 1;
+    unsigned short usDynamicIndex : 16;            // +16
 
     // Flags used by CBaseModelInfo
     unsigned char bHasBeenPreRendered : 1;            // +18
@@ -277,6 +268,7 @@ class CModelInfoSA : public CModelInfo
     static std::map<DWORD, float>                                                                ms_ModelDefaultLodDistanceMap;
     static std::map<DWORD, BYTE>                                                                 ms_ModelDefaultAlphaTransparencyMap;
     static std::unordered_map<CVehicleModelInfoSAInterface*, std::map<eVehicleDummies, CVector>> ms_ModelDefaultDummiesPosition;
+    static std::unordered_map<DWORD, unsigned short>                                             ms_OriginalObjectPropertiesGroups;
     bool                                                                                         m_bAddedRefForCollision;
     SVehicleSupportedUpgrades                                                                    m_ModelSupportedUpgrades;
 
@@ -375,6 +367,11 @@ class CModelInfoSA : public CModelInfo
     void InitialiseSupportedUpgrades(RpClump* pClump);
     void ResetSupportedUpgrades();
 
+    void           SetObjectPropertiesGroup(unsigned short usObjectGroup);
+    unsigned short GetObjectPropertiesGroup();
+    void           RestoreObjectPropertiesGroup();
+    static void    RestoreAllObjectsPropertiesGroups();
+
 private:
     void RwSetSupportedUpgrades(RwFrame* parent, DWORD dwModel);
 };