Index: code/branches/presentation2/src/orxonox/worldentities/CMakeLists.txt
===================================================================
--- code/branches/presentation2/src/orxonox/worldentities/CMakeLists.txt	(revision 6112)
+++ code/branches/presentation2/src/orxonox/worldentities/CMakeLists.txt	(revision 6187)
@@ -7,4 +7,5 @@
 
   BigExplosion.cc
+  EffectContainer.cc
   ExplosionChunk.cc
   CameraPosition.cc
Index: code/branches/presentation2/src/orxonox/worldentities/EffectContainer.cc
===================================================================
--- code/branches/presentation2/src/orxonox/worldentities/EffectContainer.cc	(revision 6187)
+++ code/branches/presentation2/src/orxonox/worldentities/EffectContainer.cc	(revision 6187)
@@ -0,0 +1,110 @@
+/*
+ *   ORXONOX - the hottest 3D action shooter ever to exist
+ *                    > www.orxonox.net <
+ *
+ *
+ *   License notice:
+ *
+ *   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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ *
+ *   Author:
+ *      Reto Grieder
+ *   Co-authors:
+ *      ...
+ *
+ */
+
+#include "EffectContainer.h"
+
+extern "C" {
+#include <lua.h>
+}
+
+#include "core/CoreIncludes.h"
+#include "core/LuaState.h"
+#include "core/XMLPort.h"
+
+namespace orxonox
+{
+    CreateFactory(EffectContainer);
+
+    EffectContainer::EffectContainer(BaseObject* creator)
+        : StaticEntity(creator)
+        , lua_(NULL)
+    {
+        RegisterObject(EffectContainer);
+    }
+
+    EffectContainer::~EffectContainer()
+    {
+    }
+
+    void EffectContainer::XMLPort(Element& xmlelement, XMLPort::Mode mode)
+    {
+        SUPER(EffectContainer, XMLPort, xmlelement, mode);
+        XMLPortParam(EffectContainer, "condition", setCondition, getCondition, xmlelement, mode);
+        XMLPortObject(EffectContainer, WorldEntity, "", addEffect, getEffect, xmlelement, mode);
+    }
+
+    void EffectContainer::setCondition(const std::string& condition)
+    {
+        // TODO: Watch out for code injection!
+        this->condition_ = condition;
+        if (this->lua_)
+        {
+            this->lua_->doString(
+                this->functionName_ + " = function() \n"
+                "    return (" + condition + ") \n"
+                "end"
+            );
+        }
+    }
+
+    void EffectContainer::setLuaState(LuaState* state, const std::string& functionName)
+    {
+        this->functionName_ = functionName;
+        this->lua_ = state;
+        this->setCondition(this->condition_);
+    }
+
+    void EffectContainer::addEffect(WorldEntity* effect)
+    {
+        this->effects_.push_back(effect);
+    }
+
+    WorldEntity* EffectContainer::getEffect(unsigned int index) const
+    {
+        unsigned int i = 0;
+        for (std::vector<WorldEntity*>::const_iterator it = this->effects_.begin(); it != this->effects_.end(); ++it)
+            if (i == index)
+                return (*it);
+        return NULL;
+    }
+
+    void EffectContainer::updateCondition()
+    {
+        if (this->lua_)
+        {
+            lua_getglobal(this->lua_->getInternalLuaState(), this->functionName_.c_str());
+            lua_call(this->lua_->getInternalLuaState(), 0, 1);
+            bool result = (bool)lua_toboolean(this->lua_->getInternalLuaState(), -1);
+            lua_pop(this->lua_->getInternalLuaState(), 1);
+            for (std::vector<WorldEntity*>::const_iterator it = this->effects_.begin(); it != this->effects_.end(); ++it)
+            {
+                (*it)->setMainState(result);
+            }
+        }
+    }
+}
Index: code/branches/presentation2/src/orxonox/worldentities/EffectContainer.h
===================================================================
--- code/branches/presentation2/src/orxonox/worldentities/EffectContainer.h	(revision 6187)
+++ code/branches/presentation2/src/orxonox/worldentities/EffectContainer.h	(revision 6187)
@@ -0,0 +1,71 @@
+/*
+ *   ORXONOX - the hottest 3D action shooter ever to exist
+ *                    > www.orxonox.net <
+ *
+ *
+ *   License notice:
+ *
+ *   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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ *
+ *   Author:
+ *      Reto Grieder
+ *   Co-authors:
+ *      ...
+ *
+ */
+
+#ifndef _EffectContainer_H__
+#define _EffectContainer_H__
+
+#include "OrxonoxPrereqs.h"
+
+#include <vector>
+#include "core/BaseObject.h"
+
+namespace orxonox
+{
+    class _OrxonoxExport EffectContainer : public BaseObject
+    {
+        public:
+            EffectContainer(BaseObject* creator);
+            virtual ~EffectContainer();
+
+            virtual void XMLPort(Element& xmlelement, XMLPort::Mode mode);
+
+            void setLuaState(LuaState* state, const std::string& functionName);
+
+            void setCondition(const std::string& condition);
+            inline const std::string& getCondition() const
+                { return this->condition_; }
+
+            void addEffect(WorldEntity* effect);
+            WorldEntity* getEffect(unsigned int index) const;
+
+            inline std::vector<WorldEntity*>::const_iterator getEffectsBegin()
+                { return this->effects_.begin(); }
+            inline std::vector<WorldEntity*>::const_iterator getEffectsEnd()
+                { return this->effects_.end(); }
+
+            void updateCondition();
+
+        private:
+            std::string               condition_;
+            std::string               functionName_;
+            LuaState*                 lua_;
+            std::vector<WorldEntity*> effects_;
+    };
+}
+
+#endif /* _EffectContainer_H__ */
