Changeset 1591 for code/branches/core3/src/core/ObjectListBase.h

Timestamp:

Jun 12, 2008, 2:00:15 AM (17 years ago)

Author:

landauf

Message:

Again some heavy changes in ObjectList and Iterator:
there are now two types of iterators:

Iterator<ClassName> can iterate through any objectlist, either given by ObjectList<AnyClassName>::begin() or anyidentifier→getObjects()→begin(). Important note Iterator<ClassName> uses dynamic_cast.
And yes, it's possible to do this: Iterator<WorldEntity> it = ObjectList<SpaceShip>::begin()

ObjectList<ClassName>::iterator is the second iterator - it uses the ObjectList in a templated manner and therefore doesn't need dynamic_cast. But the only thing you can do is iterating through exactly the right ObjectList: ObjectList<ClassName>::iterator it = ObjectList<ClassName>::begin(). Anything else fails.

Those changes bring, at my system, something around +12% FPS compared with trunk and +25% FPS compared with the last revision of core3. Although I have to admit the FPS gain is only that high because iterating through objects is the main thing we're doing ingame right now. It would look totally different with physics, sound, AI, scripts, triggers and so on.

File:

• code/branches/core3/src/core/ObjectListBase.h (modified) (3 diffs)

code/branches/core3/src/core/ObjectListBase.h

@@ -38 +38 @@
 #define _ObjectListBase_H__
 
-#include <set>
+#include <list>
 
 #include "CorePrereqs.h"
@@ -55 +55 @@
                 @param object The object to store
             */
-            ObjectListBaseElement(OrxonoxClass* object) : object_(object), next_(0), prev_(0) {}
+            ObjectListBaseElement(OrxonoxClass* objectBase) : next_(0), prev_(0), objectBase_(objectBase) {}
 
-            OrxonoxClass* object_;              //!< The object
             ObjectListBaseElement* next_;       //!< The next element in the list
             ObjectListBaseElement* prev_;       //!< The previous element in the list
+            OrxonoxClass* objectBase_;
+    };
+
+
+    // ###############################
+    // ###    ObjectListElement    ###
+    // ###############################
+    //! The list-element that actually contains the object
+    template <class T>
+    class ObjectListElement : public ObjectListBaseElement
+    {
+        public:
+            ObjectListElement(T* object) : ObjectListBaseElement(object), object_(object) {}
+            T* object_;              //!< The object
     };
 
@@ -79 +92 @@
             ~ObjectListBase();
 
-            ObjectListBaseElement* add(OrxonoxClass* object);
+            ObjectListBaseElement* add(ObjectListBaseElement* element);
+
+            struct Export
+            {
+                Export(ObjectListBase* list, ObjectListBaseElement* element) : list_(list), element_(element) {}
+                ObjectListBase* list_;
+                ObjectListBaseElement* element_;
+            };
 
             /** @brief Returns a pointer to the first element in the list. @return The element */
-            inline ObjectListBaseElement* begin() const { return this->first_; }
+            inline Export begin() { return ObjectListBase::Export(this, this->first_); }
             /** @brief Returns a pointer to the element after the last element in the list. @return The element */
-            inline ObjectListBaseElement* end() const { return 0; }
+            inline Export end() { return ObjectListBase::Export(this, 0); }
             /** @brief Returns a pointer to the last element in the list. @return The element */
-            inline ObjectListBaseElement* rbegin() const { return this->last_; }
+            inline Export rbegin() { return ObjectListBase::Export(this, this->last_); }
             /** @brief Returns a pointer to the element in front of the first element in the list. @return The element */
-            inline ObjectListBaseElement* rend() const { return 0; }
+            inline Export rend() { return ObjectListBase::Export(this, 0); }
 
-            inline void registerIterator(IteratorBase* iterator)
-                { this->iterators_.insert(this->iterators_.end(), iterator); }
-            inline void unregisterIterator(IteratorBase* iterator)
-                { this->iterators_.erase(iterator); }
-            void notifyIterators(ObjectListBaseElement* element);
+            inline std::list<void*>::iterator registerIterator(void* iterator) { return this->iterators_.insert(this->iterators_.begin(), iterator); }
+            inline void unregisterIterator(const std::list<void*>::iterator& iterator) { this->iterators_.erase(iterator); }
+            inline std::list<void*>::iterator registerObjectListIterator(void* iterator) { return this->objectListIterators_.insert(this->iterators_.begin(), iterator); }
+            inline void unregisterObjectListIterator(const std::list<void*>::iterator& iterator) { this->objectListIterators_.erase(iterator); }
+            void notifyIterators(OrxonoxClass* object) const;
 
             inline Identifier* getIdentifier() const { return this->identifier_; }
 
         private:
-            Identifier* identifier_;             //!< The Iterator owning this list
-            ObjectListBaseElement* first_;       //!< The first element in the list
-            ObjectListBaseElement* last_;        //!< The last element in the list
-            std::set<IteratorBase*> iterators_;  //!< A list of iterators pointing on an element in this list
+            Identifier* identifier_;               //!< The Iterator owning this list
+            ObjectListBaseElement* first_;         //!< The first element in the list
+            ObjectListBaseElement* last_;          //!< The last element in the list
+            std::list<void*> iterators_;           //!< A list of Iterators pointing on an element in this list
+            std::list<void*> objectListIterators_; //!< A list of ObjectListIterators pointing on an element in this list
     };
 }