Play 'hello' voiced dialogue entries in AIWander

apps/openmw/mwmechanics/aiwander.cpp

@@ -7,6 +7,7 @@
 #include "../mwbase/environment.hpp"
 #include "../mwbase/mechanicsmanager.hpp"
 #include "../mwbase/dialoguemanager.hpp"
+
 #include "creaturestats.hpp"
 #include <OgreVector3.h>
 
@@ -31,6 +32,7 @@ namespace MWMechanics
       , mX(0)
       , mY(0)
       , mZ(0)
+      , mSaidGreeting(false)
     {
         for(unsigned short counter = 0; counter < mIdle.size(); counter++)
         {
@@ -197,6 +199,38 @@ namespace MWMechanics
 
         if(mIdleNow)
         {
+            // Play a random voice greeting if the player gets too close
+            const MWWorld::ESMStore &store = MWBase::Environment::get().getWorld()->getStore();
+
+            float hello = actor.getClass().getCreatureStats(actor).getAiSetting(CreatureStats::AI_Hello).getModified();
+            float helloDistance = hello;
+            int iGreetDistanceMultiplier = store.get<ESM::GameSetting>().find("iGreetDistanceMultiplier")->getInt();
+            helloDistance *= iGreetDistanceMultiplier;
+
+            MWWorld::Ptr player = MWBase::Environment::get().getWorld()->getPlayerPtr();
+            float playerDist = Ogre::Vector3(player.getRefData().getPosition().pos).distance(
+                        Ogre::Vector3(actor.getRefData().getPosition().pos));
+
+            if (!mSaidGreeting)
+            {
+                // TODO: check if actor is aware / has line of sight
+                if (playerDist <= helloDistance
+                        // Only play a greeting if the player is not moving
+                        && Ogre::Vector3(player.getClass().getMovementSettings(player).mPosition).squaredLength() == 0)
+                {
+                    mSaidGreeting = true;
+                    MWBase::Environment::get().getDialogueManager()->say(actor, "hello");
+                    // TODO: turn to face player and interrupt the idle animation?
+                }
+            }
+            else
+            {
+                float fGreetDistanceReset = store.get<ESM::GameSetting>().find("fGreetDistanceReset")->getFloat();
+                if (playerDist >= fGreetDistanceReset * iGreetDistanceMultiplier)
+                    mSaidGreeting = false;
+            }
+
+            // Check if idle animation finished
             if(!checkIdle(actor, mPlayedIdle))
             {
                 mPlayedIdle = 0;

apps/openmw/mwmechanics/aiwander.hpp

@@ -32,6 +32,8 @@ namespace MWMechanics
             std::vector<int> mIdle;
             bool mRepeat;
 
+            bool mSaidGreeting;
+
             float mX;
             float mY;
             float mZ;