From 2b53f08386baddeda7e0fa19a3072477c2829080 Mon Sep 17 00:00:00 2001
From: Robert Adams
Date: Mon, 25 Feb 2013 21:58:00 -0800
Subject: BulletSim: tweeks to make avatar jump work better.

---
 OpenSim/Region/Physics/BulletSPlugin/BSCharacter.cs | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

(limited to 'OpenSim')

diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSCharacter.cs b/OpenSim/Region/Physics/BulletSPlugin/BSCharacter.cs
index 1f186c3..f442ca2 100644
--- a/OpenSim/Region/Physics/BulletSPlugin/BSCharacter.cs
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSCharacter.cs
@@ -204,7 +204,7 @@ public sealed class BSCharacter : BSPhysObject
             //   move. Thus, the velocity cannot be forced to zero. The problem is that small velocity
             //   errors can creap in and the avatar will slowly float off in some direction.
             // So, the problem is that, when an avatar is standing, we cannot tell creaping error
-            //   from real pushing.OMV.Vector3.Zero;
+            //   from real pushing.
             // The code below keeps setting the velocity to zero hoping the world will keep pushing.
 
             _velocityMotor.Step(timeStep);
@@ -254,9 +254,11 @@ public sealed class BSCharacter : BSPhysObject
                 }
 
                 // If falling, we keep the world's downward vector no matter what the other axis specify.
+                // The check for _velocity.Z < 0 makes jumping work (temporary upward force).
                 if (!Flying && !IsColliding)
                 {
-                    stepVelocity.Z = _velocity.Z;
+                    if (_velocity.Z < 0)
+                        stepVelocity.Z = _velocity.Z;
                     // DetailLog("{0},BSCharacter.MoveMotor,taint,overrideStepZWithWorldZ,stepVel={1}", LocalID, stepVelocity);
                 }
 
@@ -512,7 +514,7 @@ public sealed class BSCharacter : BSPhysObject
             //    just assign to "Position" because of potential call loops.
             PhysicsScene.TaintedObject(inTaintTime, "BSCharacter.PositionSanityCheck", delegate()
             {
-                DetailLog("{0},BSCharacter.PositionSanityCheck,taint,pos={1},orient={2}", LocalID, _position, _orientation);
+                DetailLog("{0},BSCharacter.PositionSanityCheck,taint,pos={1},orient={2}", LocalID, _position, _orientation);
                 ForcePosition = _position;
             });
             ret = true;
@@ -572,7 +574,7 @@ public sealed class BSCharacter : BSPhysObject
             m_targetVelocity = value;
             OMV.Vector3 targetVel = value;
             if (_setAlwaysRun)
-                targetVel *= BSParam.AvatarAlwaysRunFactor;
+                targetVel *= new OMV.Vector3(BSParam.AvatarAlwaysRunFactor, BSParam.AvatarAlwaysRunFactor, 0f);
 
             PhysicsScene.TaintedObject("BSCharacter.setTargetVelocity", delegate()
             {
-- 
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