Avoid trying to animate things that don't have animations

apps/openmw/mwmechanics/character.cpp

@@ -29,7 +29,7 @@ namespace MWMechanics
 CharacterController::CharacterController(const MWWorld::Ptr &ptr, MWRender::Animation *anim, CharacterState state)
   : mPtr(ptr), mAnimation(anim), mState(state)
 {
-    if(!mAnimation)
+    if(!mAnimation || mAnimation->getAnimationCount() == 0)
         return;
 
     mAnimation->setController(this);
@@ -47,7 +47,7 @@ CharacterController::CharacterController(const MWWorld::Ptr &ptr, MWRender::Anim
 CharacterController::CharacterController(const CharacterController &rhs)
   : mPtr(rhs.mPtr), mAnimation(rhs.mAnimation), mState(rhs.mState)
 {
-    if(!mAnimation)
+    if(!mAnimation || mAnimation->getAnimationCount() == 0)
         return;
     /* We've been copied. Update the animation with the new controller. */
     mAnimation->setController(this);
@@ -68,6 +68,9 @@ void CharacterController::markerEvent(const std::string &evt)
 void CharacterController::setState(CharacterState state)
 {
     mState = state;
+
+    if(!mAnimation || mAnimation->getAnimationCount() == 0)
+        return;
     switch(mState)
     {
         case CharState_Idle:

apps/openmw/mwrender/animation.cpp

@@ -98,6 +98,23 @@ void Animation::createEntityList(Ogre::SceneNode *node, const std::string &model
 }
 
 
+int Animation::getAnimationCount()
+{
+    int num = 0;
+    if(mEntityList.mSkelBase)
+    {
+        Ogre::AnimationStateSet *as = mEntityList.mSkelBase->getAllAnimationStates();
+        Ogre::AnimationStateIterator ai = as->getAnimationStateIterator();
+        while(ai.hasMoreElements())
+        {
+            num++;
+            ai.moveNext();
+        }
+    }
+    return num;
+}
+
+
 void Animation::setController(MWMechanics::CharacterController *controller)
 {
     mController = controller;

apps/openmw/mwrender/animation.hpp

@@ -66,6 +66,8 @@ public:
     virtual ~Animation();
 
     void setController(MWMechanics::CharacterController *controller);
+    int getAnimationCount();
+
     void playGroup(std::string groupname, int mode, int loops);
     void skipAnim();
     virtual void runAnimation(float timepassed);