1 files changed, 120 insertions, 0 deletions
diff --git a/src/game/CreatureAISelector.cpp b/src/game/CreatureAISelector.cpp
new file mode 100644
index 00000000000..2e8b6f1a230
--- /dev/null
+++ b/src/game/CreatureAISelector.cpp
@@ -0,0 +1,120 @@
+/*
+ * Copyright (C) 2005-2008 MaNGOS <http://www.mangosproject.org/>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include "Creature.h"
+#include "CreatureAIImpl.h"
+#include "CreatureAISelector.h"
+#include "NullCreatureAI.h"
+#include "Policies/SingletonImp.h"
+#include "MovementGenerator.h"
+#include "ScriptCalls.h"
+#include "Pet.h"
+
+INSTANTIATE_SINGLETON_1(CreatureAIRegistry);
+INSTANTIATE_SINGLETON_1(MovementGeneratorRegistry);
+
+namespace FactorySelector
+{
+    CreatureAI* selectAI(Creature *creature)
+    {
+        // Allow scripting AI for normal creatures and not controlled pets (guardians and mini-pets)
+        if((!creature->isPet() || !((Pet*)creature)->isControlled()) && !creature->isCharmed())
+            if(CreatureAI* scriptedAI = Script->GetAI(creature))
+                return scriptedAI;
+
+        CreatureAIRegistry &ai_registry(CreatureAIRepository::Instance());
+        assert( creature->GetCreatureInfo() != NULL );
+        CreatureInfo const *cinfo=creature->GetCreatureInfo();
+
+        const CreatureAICreator *ai_factory = NULL;
+
+        std::string ainame=cinfo->AIName;
+
+        // select by script name
+        if( !ainame.empty())
+            ai_factory = ai_registry.GetRegistryItem( ainame.c_str() );
+
+        // select by NPC flags
+        if(!ai_factory)
+        {
+            if( creature->isGuard() )
+                ainame="GuardAI";
+            else if(creature->isPet() || creature->isCharmed())
+                ainame="PetAI";
+            else if(creature->isTotem())
+                ainame="TotemAI";
+
+            ai_factory = ai_registry.GetRegistryItem( ainame.c_str() );
+        }
+
+        // select by permit check
+        if(!ai_factory)
+        {
+            int best_val = -1;
+            typedef CreatureAIRegistry::RegistryMapType RMT;
+            RMT const &l = ai_registry.GetRegisteredItems();
+            for( RMT::const_iterator iter = l.begin(); iter != l.end(); ++iter)
+            {
+                const CreatureAICreator *factory = iter->second;
+                const SelectableAI *p = dynamic_cast<const SelectableAI *>(factory);
+                assert( p != NULL );
+                int val = p->Permit(creature);
+                if( val > best_val )
+                {
+                    best_val = val;
+                    ai_factory = p;
+                }
+            }
+        }
+
+        // select NullCreatureAI if not another cases
+        ainame = (ai_factory == NULL) ? "NullCreatureAI" : ai_factory->key();
+
+        DEBUG_LOG("Creature %u used AI is %s.", creature->GetGUIDLow(), ainame.c_str() );
+        return ( ai_factory == NULL ? new NullCreatureAI : ai_factory->Create(creature) );
+    }
+
+    MovementGenerator* selectMovementGenerator(Creature *creature)
+    {
+        MovementGeneratorRegistry &mv_registry(MovementGeneratorRepository::Instance());
+        assert( creature->GetCreatureInfo() != NULL );
+        const MovementGeneratorCreator *mv_factory = mv_registry.GetRegistryItem( creature->GetDefaultMovementType());
+
+        /* if( mv_factory == NULL  )
+        {
+            int best_val = -1;
+            std::vector<std::string> l;
+            mv_registry.GetRegisteredItems(l);
+            for( std::vector<std::string>::iterator iter = l.begin(); iter != l.end(); ++iter)
+            {
+            const MovementGeneratorCreator *factory = mv_registry.GetRegistryItem((*iter).c_str());
+            const SelectableMovement *p = dynamic_cast<const SelectableMovement *>(factory);
+            assert( p != NULL );
+            int val = p->Permit(creature);
+            if( val > best_val )
+            {
+                best_val = val;
+                mv_factory = p;
+            }
+            }
+        }*/
+
+        return ( mv_factory == NULL ? NULL : mv_factory->Create(creature) );
+
+    }
+}