From 021964c6e0648cf0e75b46864bef55afb7ff0a1f Mon Sep 17 00:00:00 2001 From: Robert Adams Date: Tue, 15 Jan 2013 04:24:24 -0800 Subject: [PATCH] BulletSim: tweeks to improve hover. --- .../Physics/BulletSPlugin/BSDynamics.cs | 26 +++++++++++++++---- 1 file changed, 21 insertions(+), 5 deletions(-) diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSDynamics.cs b/OpenSim/Region/Physics/BulletSPlugin/BSDynamics.cs index f5826bcee0..e434412017 100644 --- a/OpenSim/Region/Physics/BulletSPlugin/BSDynamics.cs +++ b/OpenSim/Region/Physics/BulletSPlugin/BSDynamics.cs @@ -1047,16 +1047,32 @@ namespace OpenSim.Region.Physics.BulletSPlugin else { // Error is positive if below the target and negative if above. - float verticalError = m_VhoverTargetHeight - VehiclePosition.Z; - float verticalCorrectionVelocity = verticalError / m_VhoverTimescale * pTimestep; + Vector3 hpos = VehiclePosition; + float verticalError = m_VhoverTargetHeight - hpos.Z; + float verticalCorrection = verticalError / m_VhoverTimescale; + verticalCorrection *= m_VhoverEfficiency; + + hpos.Z += verticalCorrection; + VehiclePosition = hpos; + + // Since we are hovering, we need to do the opposite of falling -- get rid of world Z + Vector3 vel = VehicleVelocity; + vel.Z = 0f; + VehicleVelocity = vel; + + /* + float verticalCorrectionVelocity = verticalError / m_VhoverTimescale; + Vector3 verticalCorrection = new Vector3(0f, 0f, verticalCorrectionVelocity); + verticalCorrection *= m_vehicleMass; // TODO: implement m_VhoverEfficiency correctly - VehicleAddForceImpulse(new Vector3(0f, 0f, verticalCorrectionVelocity)); + VehicleAddForceImpulse(verticalCorrection); + */ - VDetailLog("{0}, MoveLinear,hover,pos={1},eff={2},hoverTS={3},height={4},target={5},err={6},corrVel={7}", + VDetailLog("{0}, MoveLinear,hover,pos={1},eff={2},hoverTS={3},height={4},target={5},err={6},corr={7}", Prim.LocalID, VehiclePosition, m_VhoverEfficiency, m_VhoverTimescale, m_VhoverHeight, m_VhoverTargetHeight, - verticalError, verticalCorrectionVelocity); + verticalError, verticalCorrection); } }