finish PreDelete and CheckPreDeletion. now there is no problem when deleting object

CodeGen/EnumsMigration/src/VxEnums.txt

@@ -211,11 +211,11 @@ typedef enum VXCMPFUNC
 Summary:  Material special effects
 
 Remarks:
-o Effects provide additionnal functionnalities to take advantage of graphic features such as bump mapping,cube maps etc... 
++ Effects provide additionnal functionnalities to take advantage of graphic features such as bump mapping,cube maps etc... 
-o When an effect is enabled on a material (CKMaterial::SetEffect) it may override the default settings of mesh channels or material blend options
++ When an effect is enabled on a material (CKMaterial::SetEffect) it may override the default settings of mesh channels or material blend options
-o New effects can be created by providing a callback function (see CKRenderManager::AddEffect)
++ New effects can be created by providing a callback function (see CKRenderManager::AddEffect)
-o This enumeration provides the list of hardcoded existing effects.
++ This enumeration provides the list of hardcoded existing effects.
-o Most of this effect are heavily hardware and device (DX8,DX7,etc..) dependant 
++ Most of this effect are heavily hardware and device (DX8,DX7,etc..) dependant 
 See also: CKMaterial::SetEffect,CKMaterial::GetEffect,CKRenderManager::AddEffect
 ******************************************************************/
 typedef enum VX_EFFECT

LibCmo/CK2/MgrImpls/CKObjectManager.cpp

@@ -117,6 +117,11 @@ namespace LibCmo::CK2::MgrImpls {
 			}
 		}
 
+		// calling PreDelete function for deleted objects
+		for (const auto& objid : validObjIds) {
+			m_ObjectsList[Id2Offset(objid)]->PreDelete();
+		}
+
 		// then free all valid object
 		for (const auto& objid : validObjIds) {
 			CKDWORD off = Id2Offset(objid);

LibCmo/CK2/ObjImpls/CK3dEntity.cpp

@@ -19,6 +19,18 @@ namespace LibCmo::CK2::ObjImpls {
 
 	CK3dEntity::~CK3dEntity() {}
 
+	void CK3dEntity::CheckPreDeletion() {
+		CKRenderObject::CheckPreDeletion();
+
+		// check active mesh
+		if (m_CurrentMesh->IsToBeDeleted()) {
+			m_CurrentMesh = nullptr;
+		}
+
+		// check potential meshes
+		XContainer::NSXObjectPointerArray::PreDeletedCheck(m_PotentialMeshes, m_Context);
+	}
+
 	bool CK3dEntity::Save(CKStateChunk* chunk, CKFileVisitor* file, CKDWORD flags) {
 		bool suc = CKRenderObject::Save(chunk, file, flags);
 		if (!suc) return false;

LibCmo/CK2/ObjImpls/CK3dEntity.hpp

@@ -14,10 +14,12 @@ namespace LibCmo::CK2::ObjImpls {
 		virtual CK_CLASSID GetClassID(void) override { 
 			return CK_CLASSID::CKCID_3DENTITY; 
 		}
-		//virtual void PreSave(CKFileVisitor* file, CKDWORD flags) override;
+		
+		virtual void CheckPreDeletion() override;
+
+		// 2 RW functions
 		virtual bool Save(CKStateChunk* chunk, CKFileVisitor* file, CKDWORD flags) override;
 		virtual bool Load(CKStateChunk* chunk, CKFileVisitor* file) override;
-		//virtual void PostLoad() override;
 		
 		// it have special Show and IsVisible method
 		virtual void Show(CK_OBJECT_SHOWOPTION show = CK_OBJECT_SHOWOPTION::CKSHOW) override;

LibCmo/CK2/ObjImpls/CKBeObject.cpp

@@ -10,15 +10,7 @@ namespace LibCmo::CK2::ObjImpls {
 	CKBeObject::CKBeObject(CKContext* ctx, CK_ID ckid, CKSTRING name) :
 		CKSceneObject(ctx, ckid, name), m_Groups() {}
 
-	CKBeObject::~CKBeObject() {
+	CKBeObject::~CKBeObject() {}
-		// remove self from all group
-		//for (size_t i = 0; i < m_Groups.size(); ++i) {
-		//	if (m_Groups[i]) {
-		//		CKGroup* group = static_cast<CKGroup*>(m_Context->GetObjectManager()->GetGroupByGlobalIndex(static_cast<CKDWORD>(i)));
-		//		group->RemoveObject(this);
-		//	}
-		//}
-	}
 
 	bool CKBeObject::Save(CKStateChunk* chunk, CKFileVisitor* file, CKDWORD flags) {
 		bool suc = CKSceneObject::Save(chunk, file, flags);

LibCmo/CK2/ObjImpls/CKGroup.cpp

@@ -12,9 +12,27 @@ namespace LibCmo::CK2::ObjImpls {
 		m_GroupIndex(m_Context->GetObjectManager()->AllocateGroupGlobalIndex()) {}
 
 	CKGroup::~CKGroup() {
+		// free self allocated id
 		m_Context->GetObjectManager()->FreeGroupGlobalIndex(m_GroupIndex);
 	}
 
+	void CKGroup::PreDelete() {
+		CKBeObject::PreDelete();
+
+		// unlink all grouped object
+		for (auto& ptr : m_ObjectArray) {
+			static_cast<CKBeObject*>(ptr)->ExplicitSetGroup(m_GroupIndex, false);
+		}
+		m_ObjectArray.clear();
+	}
+
+	void CKGroup::CheckPreDeletion() {
+		CKBeObject::CheckPreDeletion();
+
+		// remove self invalid object ptr
+		XContainer::NSXObjectPointerArray::PreDeletedCheck(m_ObjectArray, m_Context);
+	}
+
 	bool CKGroup::Save(CKStateChunk* chunk, CKFileVisitor* file, CKDWORD flags) {
 		bool suc = CKBeObject::Save(chunk, file, flags);
 		if (!suc) return false;

LibCmo/CK2/ObjImpls/CKGroup.hpp

@@ -14,6 +14,10 @@ namespace LibCmo::CK2::ObjImpls {
 		virtual CK_CLASSID GetClassID(void) override { 
 			return CK_CLASSID::CKCID_GROUP; 
 		}
+
+		virtual void PreDelete() override;
+		virtual void CheckPreDeletion() override;
+
 		//virtual void PreSave(CKFileVisitor* file, CKDWORD flags) override;
 		virtual bool Save(CKStateChunk* chunk, CKFileVisitor* file, CKDWORD flags) override;
 		virtual bool Load(CKStateChunk* chunk, CKFileVisitor* file) override;

LibCmo/CK2/ObjImpls/CKMaterial.cpp

@@ -33,6 +33,17 @@ namespace LibCmo::CK2::ObjImpls {
 
 	CKMaterial::~CKMaterial() {}
 
+	void CKMaterial::CheckPreDeletion() {
+		CKBeObject::CheckPreDeletion();
+
+		// check 4 textures
+		for (auto& tex : m_Textures) {
+			if (tex != nullptr && tex->IsToBeDeleted()) {
+				tex = nullptr;
+			}
+		}
+	}
+
 	bool CKMaterial::Save(CKStateChunk* chunk, CKFileVisitor* file, CKDWORD flags) {
 		bool suc = CKBeObject::Save(chunk, file, flags);
 		if (!suc) return false;

LibCmo/CK2/ObjImpls/CKMaterial.hpp

@@ -16,10 +16,11 @@ namespace LibCmo::CK2::ObjImpls {
 			return CK_CLASSID::CKCID_MATERIAL; 
 		}
 
-		//virtual void PreSave(CKFileVisitor* file, CKDWORD flags) override;
+		virtual void CheckPreDeletion() override;
+		
+		// 2 RW functions
 		virtual bool Save(CKStateChunk* chunk, CKFileVisitor* file, CKDWORD flags) override;
 		virtual bool Load(CKStateChunk* chunk, CKFileVisitor* file) override;
-		//virtual void PostLoad() override;
 
 	protected:
 		VxMath::VxColor m_Diffuse;

LibCmo/CK2/ObjImpls/CKMesh.cpp

@@ -35,6 +35,24 @@ namespace LibCmo::CK2::ObjImpls {
 
 	CKMesh::~CKMesh() {}
 
+	void CKMesh::CheckPreDeletion() {
+		CKBeObject::CheckPreDeletion();
+
+		// check material slots
+		for (auto& slot : m_MaterialSlot) {
+			if (slot != nullptr && slot->IsToBeDeleted()) {
+				slot = nullptr;
+			}
+		}
+
+		// check mtl channels
+		for (auto& chl : m_MaterialChannels) {
+			if (chl.m_Material != nullptr && chl.m_Material->IsToBeDeleted()) {
+				chl.m_Material = nullptr;
+			}
+		}
+	}
+
 	bool CKMesh::Save(CKStateChunk* chunk, CKFileVisitor* file, CKDWORD flags) {
 		bool suc = CKBeObject::Save(chunk, file, flags);
 		if (!suc) return false;

LibCmo/CK2/ObjImpls/CKMesh.hpp

@@ -15,10 +15,11 @@ namespace LibCmo::CK2::ObjImpls {
 			return CK_CLASSID::CKCID_MESH; 
 		}
 		
-		//virtual void PreSave(CKFileVisitor* file, CKDWORD flags) override;
+		virtual void CheckPreDeletion() override;
+
+		// 2 RW functions
 		virtual bool Save(CKStateChunk* chunk, CKFileVisitor* file, CKDWORD flags) override;
 		virtual bool Load(CKStateChunk* chunk, CKFileVisitor* file) override;
-		//virtual void PostLoad() override;
 
 		// it only have special Show method
 		virtual void Show(CK_OBJECT_SHOWOPTION show = CK_OBJECT_SHOWOPTION::CKSHOW) override;

LibCmo/CK2/ObjImpls/CKObject.cpp

@@ -28,6 +28,9 @@ namespace LibCmo::CK2::ObjImpls {
 	void CKObject::SetObjectFlags(CK_OBJECT_FLAGS flags) {
 		m_ObjectFlags = flags;
 	}
+	bool CKObject::IsToBeDeleted() const {
+		return EnumsHelper::Has(m_ObjectFlags, CK_OBJECT_FLAGS::CK_OBJECT_TOBEDELETED);
+	}
 	CKContext* CKObject::GetCKContext() const {
 		return m_Context;
 	}
@@ -35,6 +38,8 @@ namespace LibCmo::CK2::ObjImpls {
 #pragma endregion
 
 
+	void CKObject::PreDelete() {}
+
 	void CKObject::CheckPreDeletion() {}
 
 	void CKObject::CheckPostDeletion() {}

LibCmo/CK2/ObjImpls/CKObject.hpp

@@ -16,6 +16,7 @@ Implement as original meaning:
 - Show()
 - IsVisible()
 
+- PreDelete()
 - CheckPreDeletion()
 - CheckPostDeletion()
 
@@ -30,7 +31,6 @@ No implement because don't care:
 
 Implement moved into other location:
 - Copy(): Use CKObject::CKObject(CK_ID newid, const CKObject* obj) ctor and CKClassDesc to implement.
-- PreDelete(): Write in dtor.
 
 */
 
@@ -47,12 +47,14 @@ namespace LibCmo::CK2::ObjImpls {
 		void SetName(CKSTRING u8_name);
 		CK_OBJECT_FLAGS GetObjectFlags(void) const;
 		void SetObjectFlags(CK_OBJECT_FLAGS flags);
+		bool IsToBeDeleted() const;
 		CKContext* GetCKContext() const;
 
 		virtual CK_CLASSID GetClassID(void) { 
 			return CK_CLASSID::CKCID_OBJECT; 
 		}
 
+		virtual void PreDelete();
 		virtual void CheckPreDeletion();
 		virtual void CheckPostDeletion();
 

LibCmo/VxMath/VxEnums.hpp

@@ -183,11 +183,11 @@ namespace LibCmo::VxMath {
 	/**
 	Summary:  Material special effects
 	Remarks:
-		o Effects provide additionnal functionnalities to take advantage of graphic features such as bump mapping,cube maps etc... 
+		+ Effects provide additionnal functionnalities to take advantage of graphic features such as bump mapping,cube maps etc... 
-		o When an effect is enabled on a material (CKMaterial::SetEffect) it may override the default settings of mesh channels or material blend options
+		+ When an effect is enabled on a material (CKMaterial::SetEffect) it may override the default settings of mesh channels or material blend options
-		o New effects can be created by providing a callback function (see CKRenderManager::AddEffect)
+		+ New effects can be created by providing a callback function (see CKRenderManager::AddEffect)
-		o This enumeration provides the list of hardcoded existing effects.
+		+ This enumeration provides the list of hardcoded existing effects.
-		o Most of this effect are heavily hardware and device (DX8,DX7,etc..) dependant 
+		+ Most of this effect are heavily hardware and device (DX8,DX7,etc..) dependant 
 	See also: CKMaterial::SetEffect,CKMaterial::GetEffect,CKRenderManager::AddEffect
 	 */
 	enum class VX_EFFECT : CKDWORD {

LibCmo/XContainer/XTypes.cpp

@@ -98,7 +98,7 @@ namespace LibCmo::XContainer {
 			} else {
 				obj = item;
 			}
-			if (EnumsHelper::Has(obj->GetObjectFlags(), CK2::CK_OBJECT_FLAGS::CK_OBJECT_TOBEDELETED)) return false;
+			if (obj->IsToBeDeleted()) return false;
 		} else {
 			CK2::MgrImpls::CKObjectManager* objmgr = ctx->GetObjectManager();
 			if constexpr (std::is_same_v<_Ty, CK2::CK_ID>) {

Unvirt/UnvirtContext.cpp

@@ -204,6 +204,7 @@ namespace Unvirt::Context {
 
 			// split cmd and parse it
 			auto cmds = m_Splitter.Convert(u8cmd);
+			if (cmds.empty()) continue;
 
 			// get sub command
 			if (!m_Root.RootConsume(cmds)) {