From bfe0f5d0819577c854a9f814620635dc0e7db1b2 Mon Sep 17 00:00:00 2001
From: teravus
Date: Wed, 30 Jan 2013 07:34:48 -0500
Subject: * This adds a bit more to the previous flying roll effect by adding
 additional roll when pressing page down, and reducing your roll when pressing
 page up to make it feel more responsive and give the user more visual
 feedback.

---
 OpenSim/Region/Framework/Scenes/ScenePresence.cs | 60 ++++++++++++++++++++----
 1 file changed, 50 insertions(+), 10 deletions(-)

diff --git a/OpenSim/Region/Framework/Scenes/ScenePresence.cs b/OpenSim/Region/Framework/Scenes/ScenePresence.cs
index 3e5f947..471caa2 100644
--- a/OpenSim/Region/Framework/Scenes/ScenePresence.cs
+++ b/OpenSim/Region/Framework/Scenes/ScenePresence.cs
@@ -206,8 +206,8 @@ namespace OpenSim.Region.Framework.Scenes
 
         private const float FLY_ROLL_MAX_RADIANS = 1.1f;
 
-        private const float FLY_ROLL_RADIANS_PER_SECOND = 0.06f;
-        private const float FLY_ROLL_RESET_RADIANS_PER_SECOND = 0.02f;
+        private const float FLY_ROLL_RADIANS_PER_UPDATE = 0.06f;
+        private const float FLY_ROLL_RESET_RADIANS_PER_UPDATE = 0.02f;
 
         private float m_health = 100f;
 
@@ -1244,11 +1244,47 @@ namespace OpenSim.Region.Framework.Scenes
         /// Applies a roll accumulator to the avatar's angular velocity for the avatar fly roll effect.
         /// </summary>
         /// <param name="amount">Postive or negative roll amount in radians</param>
-        private void ApplyFlyingRoll(float amount)
+        private void ApplyFlyingRoll(float amount, bool PressingUp, bool PressingDown)
         {
-            float noise = ((float)(Util.RandomClass.NextDouble()*0.2f)-0.1f);
-            float rollAmount = Util.Clamp(m_AngularVelocity.Z + amount, -FLY_ROLL_MAX_RADIANS, FLY_ROLL_MAX_RADIANS) + noise;
+            
+            float rollAmount = Util.Clamp(m_AngularVelocity.Z + amount, -FLY_ROLL_MAX_RADIANS, FLY_ROLL_MAX_RADIANS);
             m_AngularVelocity.Z = rollAmount;
+
+            // APPLY EXTRA consideration for flying up and flying down during this time.
+            // if we're turning left
+            if (amount > 0)
+            {
+
+                // If we're at the max roll and pressing up, we want to swing BACK a bit
+                // Automatically adds noise
+                if (PressingUp)
+                {
+                    if (m_AngularVelocity.Z >= FLY_ROLL_MAX_RADIANS - 0.04f)
+                        m_AngularVelocity.Z -= 0.9f;
+                }
+                // If we're at the max roll and pressing down, we want to swing MORE a bit
+                if (PressingDown)
+                {
+                    if (m_AngularVelocity.Z >= FLY_ROLL_MAX_RADIANS && m_AngularVelocity.Z < FLY_ROLL_MAX_RADIANS + 0.6f)
+                        m_AngularVelocity.Z += 0.6f;
+                }
+            }
+            else  // we're turning right.
+            {
+                // If we're at the max roll and pressing up, we want to swing BACK a bit
+                // Automatically adds noise
+                if (PressingUp)
+                {
+                    if (m_AngularVelocity.Z <= (-FLY_ROLL_MAX_RADIANS))
+                        m_AngularVelocity.Z += 0.6f;
+                }
+                // If we're at the max roll and pressing down, we want to swing MORE a bit
+                if (PressingDown)
+                {
+                    if (m_AngularVelocity.Z >= -FLY_ROLL_MAX_RADIANS - 0.6f)
+                        m_AngularVelocity.Z -= 0.6f;
+                }
+            }
         }
 
         /// <summary>
@@ -1800,26 +1836,30 @@ namespace OpenSim.Region.Framework.Scenes
                                         ((flags & AgentManager.ControlFlags.AGENT_CONTROL_NUDGE_UP_NEG) != 0));
 
 
-                   
+                   //m_log.Debug("[CONTROL]: " +flags);
                     // Applies a satisfying roll effect to the avatar when flying.
                     if (((flags & AgentManager.ControlFlags.AGENT_CONTROL_TURN_LEFT) != 0) && ((flags & AgentManager.ControlFlags.AGENT_CONTROL_YAW_POS) != 0))
                     {
-                        ApplyFlyingRoll(FLY_ROLL_RADIANS_PER_SECOND);
+
+                        ApplyFlyingRoll(FLY_ROLL_RADIANS_PER_UPDATE, ((flags & AgentManager.ControlFlags.AGENT_CONTROL_UP_POS) != 0), ((flags & AgentManager.ControlFlags.AGENT_CONTROL_UP_NEG) != 0));
+                        
                         
                     } 
                     else if (((flags & AgentManager.ControlFlags.AGENT_CONTROL_TURN_RIGHT) != 0) &&
                              ((flags & AgentManager.ControlFlags.AGENT_CONTROL_YAW_NEG) != 0))
                     {
-                        ApplyFlyingRoll(-FLY_ROLL_RADIANS_PER_SECOND);
+                        ApplyFlyingRoll(-FLY_ROLL_RADIANS_PER_UPDATE, ((flags & AgentManager.ControlFlags.AGENT_CONTROL_UP_POS) != 0), ((flags & AgentManager.ControlFlags.AGENT_CONTROL_UP_NEG) != 0));
+                       
 
                     }
                     else
                     {
                         if (m_AngularVelocity.Z != 0)
-                            m_AngularVelocity.Z += CalculateFlyingRollResetToZero(FLY_ROLL_RESET_RADIANS_PER_SECOND);
+                            m_AngularVelocity.Z += CalculateFlyingRollResetToZero(FLY_ROLL_RESET_RADIANS_PER_UPDATE);
                         
                     }
-                  
+
+                   
 
 
                     if (Flying && IsColliding && controlland)
-- 
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