Adjust Newbie aim spring to reduce snap headshots

src/vision.cpp

@@ -278,8 +278,8 @@ void Bot::updateLookAngles () {
 }
 
 void Bot::updateLookAnglesNewbie (const Vector &direction, float delta) {
-   Vector spring { 13.0f, 13.0f, 0.0f };
+   Vector spring { 13.0f, 9.0f, 0.0f };
-   Vector damperCoefficient { 0.22f, 0.22f, 0.0f };
+   Vector damperCoefficient { 0.28f, 0.26f, 0.0f };
 
    const float offset = cr::clamp (static_cast <float> (m_difficulty), 1.0f, 4.0f) * 25.0f;
 
@@ -296,10 +296,14 @@ void Bot::updateLookAnglesNewbie (const Vector &direction, float delta) {
 
    if (m_aimFlags & (AimFlags::Enemy | AimFlags::Entity)) {
       m_playerTargetTime = game.time ();
-      m_randomizedIdealAngles = m_idealAngles;
 
-      stiffness = spring * (0.2f + offset / 125.0f);
+      // bias aim slightly below exact target (chest > head)
+      m_randomizedIdealAngles = m_idealAngles;
+      m_randomizedIdealAngles.x += rg(2.0f, 6.0f); // pitch down
+
+      stiffness = spring * (0.18f + offset / 140.0f);
    }
+
    else {
       // is it time for bot to randomize the aim direction again (more often where moving) ?
       if (m_randomizeAnglesTime < game.time ()
@@ -670,3 +674,4 @@ void Bot::setAimDirection () {
       m_lookAt = m_destOrigin;
    }
 }
+