From ff5a042f5b091f8b99f78541ad28a8b4a2148fd5 Mon Sep 17 00:00:00 2001
From: Alexei Kotov <alexdobrohotov@yandex.ru>
Date: Mon, 15 Aug 2022 02:58:44 +0300
Subject: [PATCH] Remove cooldown for ranged back up (bug #5129)

---
 CHANGELOG.md                         |  1 +
 apps/openmw/mwmechanics/aicombat.cpp | 50 +++++++++++++++-------------
 2 files changed, 27 insertions(+), 24 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8e1916bd14..03dc98ae36 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,7 @@
 
     Bug #4127: Weapon animation looks choppy
     Bug #5057: Weapon swing sound plays at same pitch whether it hits or misses
+    Bug #5129: Stuttering animation on Centurion Archer
 
 0.48.0
 ------
diff --git a/apps/openmw/mwmechanics/aicombat.cpp b/apps/openmw/mwmechanics/aicombat.cpp
index f4fe7fffc1..84221537bb 100644
--- a/apps/openmw/mwmechanics/aicombat.cpp
+++ b/apps/openmw/mwmechanics/aicombat.cpp
@@ -515,13 +515,35 @@ namespace MWMechanics
 
         bool targetUsesRanged = false;
         float rangeAttackOfTarget = ActionWeapon(targetWeapon).getCombatRange(targetUsesRanged);
-        
-        if (mMovement.mPosition[0] || mMovement.mPosition[1])
+
+        if (mMovement.mPosition[0])
         {
             mTimerCombatMove = 0.1f + 0.1f * Misc::Rng::rollClosedProbability(prng);
             mCombatMove = true;
         }
-        else if (isDistantCombat)
+        // dodge movements (for NPCs and bipedal creatures)
+        // Note: do not use for ranged combat yet since in couple with back up behaviour can move actor out of cliff
+        else if (actor.getClass().isBipedal(actor) && !isDistantCombat)
+        {
+            float moveDuration = 0;
+            float angleToTarget = Misc::normalizeAngle(mMovement.mRotation[2] - actor.getRefData().getPosition().rot[2]);
+            // Apply a big side step if enemy tries to get around and come from behind.
+            // Otherwise apply a random side step (kind of dodging) with some probability
+            // if actor is within range of target's weapon.
+            if (std::abs(angleToTarget) > osg::PI / 4)
+                moveDuration = 0.2f;
+            else if (distToTarget <= rangeAttackOfTarget && Misc::Rng::rollClosedProbability(prng) < 0.25)
+                moveDuration = 0.1f + 0.1f * Misc::Rng::rollClosedProbability(prng);
+            if (moveDuration > 0)
+            {
+                mMovement.mPosition[0] = Misc::Rng::rollProbability(prng) < 0.5 ? 1.0f : -1.0f; // to the left/right
+                mTimerCombatMove = moveDuration;
+                mCombatMove = true;
+            }
+        }
+
+        mMovement.mPosition[1] = 0;
+        if (isDistantCombat)
         {
             // Backing up behaviour
             // Actor backs up slightly further away than opponent's weapon range
@@ -561,26 +583,6 @@ namespace MWMechanics
 
             mMovement.mPosition[1] = -1;
         }
-        // dodge movements (for NPCs and bipedal creatures)
-        // Note: do not use for ranged combat yet since in couple with back up behaviour can move actor out of cliff
-        else if (actor.getClass().isBipedal(actor))
-        {
-            float moveDuration = 0;
-            float angleToTarget = Misc::normalizeAngle(mMovement.mRotation[2] - actor.getRefData().getPosition().rot[2]);
-            // Apply a big side step if enemy tries to get around and come from behind.
-            // Otherwise apply a random side step (kind of dodging) with some probability
-            // if actor is within range of target's weapon.
-            if (std::abs(angleToTarget) > osg::PI / 4)
-                moveDuration = 0.2f;
-            else if (distToTarget <= rangeAttackOfTarget && Misc::Rng::rollClosedProbability(prng) < 0.25)
-                moveDuration = 0.1f + 0.1f * Misc::Rng::rollClosedProbability(prng);
-            if (moveDuration > 0)
-            {
-                mMovement.mPosition[0] = Misc::Rng::rollProbability(prng) < 0.5 ? 1.0f : -1.0f; // to the left/right
-                mTimerCombatMove = moveDuration;
-                mCombatMove = true;
-            }
-        }
     }
 
     void AiCombatStorage::updateCombatMove(float duration)
@@ -598,7 +600,7 @@ namespace MWMechanics
     void AiCombatStorage::stopCombatMove()
     {
         mTimerCombatMove = 0;
-        mMovement.mPosition[1] = mMovement.mPosition[0] = 0;
+        mMovement.mPosition[0] = 0;
         mCombatMove = false;
     }