Knockdown / hit recovery improvements. Use formula and GMSTs from research wiki for knockdown determination. Hand-to-hand automatically knocks out when fatigue empty.

apps/openmw/mwclass/npc.cpp

@@ -242,6 +242,9 @@ namespace MWClass
             fJumpAcroMultiplier = gmst.find("fJumpAcroMultiplier");
             fJumpRunMultiplier = gmst.find("fJumpRunMultiplier");
             fWereWolfRunMult = gmst.find("fWereWolfRunMult");
+            fKnockDownMult = gmst.find("fKnockDownMult");
+            iKnockDownOddsMult = gmst.find("iKnockDownOddsMult");
+            iKnockDownOddsBase = gmst.find("iKnockDownOddsBase");
 
             inited = true;
         }
@@ -651,7 +654,20 @@ namespace MWClass
             {
                 MWBase::Environment::get().getDialogueManager()->say(ptr, "hit");
             }
-            getCreatureStats(ptr).setAttacked(true);//used in CharacterController
+            getCreatureStats(ptr).setAttacked(true);
+
+            // Check for knockdown
+            float agilityTerm = getCreatureStats(ptr).getAttribute(ESM::Attribute::Agility).getModified() * fKnockDownMult->getFloat();
+            float knockdownTerm = getCreatureStats(ptr).getAttribute(ESM::Attribute::Agility).getModified()
+                    * iKnockDownOddsMult->getInt() * 0.01 + iKnockDownOddsBase->getInt();
+            roll = std::rand()/ (static_cast<double> (RAND_MAX) + 1) * 100; // [0, 99]
+            if (ishealth && agilityTerm <= damage && knockdownTerm <= roll)
+            {
+                getCreatureStats(ptr).setKnockedDown(true);
+
+            }
+            else
+                getCreatureStats(ptr).setHitRecovery(true); // Is this supposed to always occur?
 
             if(object.isEmpty())
             {
@@ -726,6 +742,15 @@ namespace MWClass
             fatigue.setCurrent(fatigue.getCurrent() - damage, true);
             getCreatureStats(ptr).setFatigue(fatigue);
         }
+
+        if (object.isEmpty())
+        {
+            // Hand-to-hand automatically knocks down when running out of fatigue
+            if (getCreatureStats(ptr).getFatigue().getCurrent() < 0)
+            {
+                getCreatureStats(ptr).setKnockedDown(true);
+            }
+        }
     }
 
     void Npc::setActorHealth(const MWWorld::Ptr& ptr, float health, const MWWorld::Ptr& attacker) const
@@ -1286,4 +1311,7 @@ namespace MWClass
     const ESM::GameSetting *Npc::fJumpAcroMultiplier;
     const ESM::GameSetting *Npc::fJumpRunMultiplier;
     const ESM::GameSetting *Npc::fWereWolfRunMult;
+    const ESM::GameSetting *Npc::fKnockDownMult;
+    const ESM::GameSetting *Npc::iKnockDownOddsMult;
+    const ESM::GameSetting *Npc::iKnockDownOddsBase;
 }

apps/openmw/mwclass/npc.hpp

@@ -33,6 +33,9 @@ namespace MWClass
             static const ESM::GameSetting *fJumpAcroMultiplier;
             static const ESM::GameSetting *fJumpRunMultiplier;
             static const ESM::GameSetting *fWereWolfRunMult;
+            static const ESM::GameSetting *fKnockDownMult;
+            static const ESM::GameSetting *iKnockDownOddsMult;
+            static const ESM::GameSetting *iKnockDownOddsBase;
 
         public:
 

apps/openmw/mwmechanics/character.cpp

@@ -157,40 +157,40 @@ public:
 
 void CharacterController::refreshCurrentAnims(CharacterState idle, CharacterState movement, bool force)
 {
-    //hit recoils/knockdown animations handling
-    if(MWWorld::Class::get(mPtr).isActor())
+    // hit recoils/knockdown animations handling
+    if(mPtr.getClass().isActor())
     {
-        if(MWWorld::Class::get(mPtr).getCreatureStats(mPtr).getAttacked())
+        bool recovery = mPtr.getClass().getCreatureStats(mPtr).getHitRecovery();
+        bool knockdown = mPtr.getClass().getCreatureStats(mPtr).getKnockedDown();
+        if(mHitState == CharState_None)
         {
-            MWWorld::Class::get(mPtr).getCreatureStats(mPtr).setAttacked(false);
-        
-            if(mHitState == CharState_None)
+            if(knockdown)
             {
-                if(mJumpState != JumpState_None && !MWBase::Environment::get().getWorld()->isFlying(mPtr) 
-                        && !MWBase::Environment::get().getWorld()->isSwimming(mPtr) )
-                {
-                    mHitState = CharState_KnockDown;
-                    mCurrentHit = sHitList[sHitListSize-1]; 
-                    mAnimation->play(mCurrentHit, Priority_Knockdown, MWRender::Animation::Group_All, true, 1, "start", "stop", 0.0f, 0);
-                }
-                else
+                mHitState = CharState_KnockDown;
+                mCurrentHit = sHitList[sHitListSize-1];
+                mAnimation->play(mCurrentHit, Priority_Knockdown, MWRender::Animation::Group_All, true, 1, "start", "stop", 0.0f, 0);
+            }
+            else if (recovery)
+            {
+                mHitState = CharState_Hit;
+                int iHit = rand() % (sHitListSize-1);
+                mCurrentHit = sHitList[iHit];
+                if(mPtr.getRefData().getHandle()=="player" && !mAnimation->hasAnimation(mCurrentHit))
                 {
-                    mHitState = CharState_Hit;
-                    int iHit = rand() % (sHitListSize-1);
+                    //only 3 different hit animations if player is in 1st person
+                    int iHit = rand() % (sHitListSize-3);
                     mCurrentHit = sHitList[iHit];
-                    if(mPtr.getRefData().getHandle()=="player" && !mAnimation->hasAnimation(mCurrentHit))
-                    {
-                        //only 3 different hit animations if player is in 1st person
-                        int iHit = rand() % (sHitListSize-3);
-                        mCurrentHit = sHitList[iHit];
-                    }
-                    mAnimation->play(mCurrentHit, Priority_Hit, MWRender::Animation::Group_All, true, 1, "start", "stop", 0.0f, 0);
                 }
+                mAnimation->play(mCurrentHit, Priority_Hit, MWRender::Animation::Group_All, true, 1, "start", "stop", 0.0f, 0);
             }
         }
-        else if(mHitState != CharState_None && !mAnimation->isPlaying(mCurrentHit))
+        else if(!mAnimation->isPlaying(mCurrentHit))
         {
             mCurrentHit.erase();
+            if (knockdown)
+                mPtr.getClass().getCreatureStats(mPtr).setKnockedDown(false);
+            if (recovery)
+                mPtr.getClass().getCreatureStats(mPtr).setHitRecovery(false);
             mHitState = CharState_None;
         }
     }

apps/openmw/mwmechanics/creaturestats.cpp

@@ -15,7 +15,7 @@ namespace MWMechanics
           mAttacked (false), mHostile (false),
           mAttackingOrSpell(false), mAttackType(AT_Chop),
           mIsWerewolf(false),
-          mFallHeight(0), mRecalcDynamicStats(false)
+          mFallHeight(0), mRecalcDynamicStats(false), mKnockdown(false), mHitRecovery(false)
     {
         for (int i=0; i<4; ++i)
             mAiSettings[i] = 0;
@@ -402,4 +402,24 @@ namespace MWMechanics
          }
          return false;
     }
+
+    void CreatureStats::setKnockedDown(bool value)
+    {
+        mKnockdown = value;
+    }
+
+    bool CreatureStats::getKnockedDown() const
+    {
+        return mKnockdown;
+    }
+
+    void CreatureStats::setHitRecovery(bool value)
+    {
+        mHitRecovery = value;
+    }
+
+    bool CreatureStats::getHitRecovery() const
+    {
+        return mHitRecovery;
+    }
 }

apps/openmw/mwmechanics/creaturestats.hpp

@@ -34,7 +34,9 @@ namespace MWMechanics
         bool mAlarmed;
         bool mAttacked;
         bool mHostile;
-        bool mAttackingOrSpell;//for the player, this is true if the left mouse button is pressed, false if not.
+        bool mAttackingOrSpell;
+        bool mKnockdown;
+        bool mHitRecovery;
 
         float mFallHeight;
 
@@ -186,6 +188,11 @@ namespace MWMechanics
 
         float getEvasion() const;
 
+        void setKnockedDown(bool value);
+        bool getKnockedDown() const;
+        void setHitRecovery(bool value);
+        bool getHitRecovery() const;
+
         void setLastHitObject(const std::string &objectid);
         const std::string &getLastHitObject() const;