Fix build

Author: Dutchman101

Client/game_sa/CModelInfoSA.cpp

@@ -488,6 +488,15 @@ bool CModelInfoSA::DoIsLoaded()
     return bLoaded;
 }
 
+bool CModelInfoSA::IsCollisionLoaded()
+{
+    m_pInterface = ppModelInfo[m_dwModelID];
+    if (!m_pInterface || !m_pInterface->pColModel)
+        return false;
+
+    return m_pInterface->pColModel->m_data != nullptr;
+}
+
 unsigned short CModelInfoSA::GetFlags()
 {
     return ppModelInfo[m_dwModelID]->usFlags;

Client/game_sa/CModelInfoSA.h

@@ -389,6 +389,7 @@ class CModelInfoSA : public CModelInfo
     void           Remove();
     bool           UnloadUnused();
     bool           IsLoaded();
+    bool           IsCollisionLoaded() override;
     bool           DoIsLoaded();
     unsigned short GetFlags();
     unsigned short GetOriginalFlags();

Client/mods/deathmatch/logic/CClientVehicle.cpp

@@ -4306,7 +4306,7 @@ void CClientVehicle::ApplyHandling()
         return;
 
     // Ensure collision model is loaded before recalculating (needed for suspension lines)
-    if (!pModelInfo->GetInterface()->pColModel || !pModelInfo->GetInterface()->pColModel->m_data)
+    if (!pModelInfo->IsCollisionLoaded())
         return;
 
     m_pVehicle->RecalculateHandling();

Client/sdk/game/CModelInfo.h

@@ -162,6 +162,7 @@ class CModelInfo
     virtual BYTE           GetVehicleType() const noexcept = 0;
     virtual void           Request(EModelRequestType requestType, const char* szTag /* = NULL*/) = 0;
     virtual bool           IsLoaded() = 0;
+    virtual bool           IsCollisionLoaded() = 0;
     virtual unsigned short GetFlags() = 0;
     virtual unsigned short GetOriginalFlags() = 0;
     virtual void           SetFlags(unsigned short usFlags) = 0;