added a function to determine if a script contains OnActivate

apps/openmw/mwbase/scriptmanager.hpp

@@ -42,6 +42,10 @@ namespace MWBase
             ///< Compile script with the given namen
             /// \return Success?
 
+            virtual bool hasOnActivate (const std::string& name) = 0;
+            ///< Determine if a script with the given name contains OnActivate
+            /// \return Contains OnActivate?
+
             virtual std::pair<int, int> compileAll() = 0;
             ///< Compile all scripts
             /// \return count, success

apps/openmw/mwscript/scriptmanagerimp.cpp

@@ -88,6 +88,12 @@ namespace MWScript
         return false;
     }
 
+    bool ScriptManager::hasOnActivate(const std::string& name)
+    {
+        const ESM::Script *script = mStore.get<ESM::Script>().find(name);
+        return script->mScriptText.find("OnActivate");
+    }
+
     void ScriptManager::run (const std::string& name, Interpreter::Context& interpreterContext)
     {
         // compile script

apps/openmw/mwscript/scriptmanagerimp.hpp

@@ -62,6 +62,10 @@ namespace MWScript
             ///< Compile script with the given namen
             /// \return Success?
 
+            virtual bool hasOnActivate(const std::string& name);
+            ///< Determine if a script with the given name contains OnActivate
+            /// \return Contains OnActivate?
+
             virtual std::pair<int, int> compileAll();
             ///< Compile all scripts
             /// \return count, success