From 134f86e8d5c414409631b25b8c6f0ee45fbd8631 Mon Sep 17 00:00:00 2001 From: David Walter Seikel Date: Thu, 3 Nov 2016 21:44:39 +1000 Subject: Initial update to OpenSim 0.8.2.1 source code. --- OpenSim/Region/Physics/BulletSNPlugin/BSLinkset.cs | 329 --------------------- 1 file changed, 329 deletions(-) delete mode 100644 OpenSim/Region/Physics/BulletSNPlugin/BSLinkset.cs (limited to 'OpenSim/Region/Physics/BulletSNPlugin/BSLinkset.cs') diff --git a/OpenSim/Region/Physics/BulletSNPlugin/BSLinkset.cs b/OpenSim/Region/Physics/BulletSNPlugin/BSLinkset.cs deleted file mode 100644 index 845a113..0000000 --- a/OpenSim/Region/Physics/BulletSNPlugin/BSLinkset.cs +++ /dev/null @@ -1,329 +0,0 @@ -/* - * Copyright (c) Contributors, http://opensimulator.org/ - * See CONTRIBUTORS.TXT for a full list of copyright holders. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyrightD - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * * Neither the name of the OpenSimulator Project nor the - * names of its contributors may be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY - * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY - * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; - * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS - * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ -using System; -using System.Collections.Generic; -using System.Text; - -using OMV = OpenMetaverse; - -namespace OpenSim.Region.Physics.BulletSNPlugin -{ - -// A BSPrim can get individual information about its linkedness attached -// to it through an instance of a subclass of LinksetInfo. -// Each type of linkset will define the information needed for its type. -public abstract class BSLinksetInfo -{ - public virtual void Clear() { } -} - -public abstract class BSLinkset -{ - // private static string LogHeader = "[BULLETSIM LINKSET]"; - - public enum LinksetImplementation - { - Constraint = 0, // linkset tied together with constraints - Compound = 1, // linkset tied together as a compound object - Manual = 2 // linkset tied together manually (code moves all the pieces) - } - // Create the correct type of linkset for this child - public static BSLinkset Factory(BSScene physScene, BSPhysObject parent) - { - BSLinkset ret = null; - - switch ((int)BSParam.LinksetImplementation) - { - case (int)LinksetImplementation.Constraint: - ret = new BSLinksetConstraints(physScene, parent); - break; - case (int)LinksetImplementation.Compound: - ret = new BSLinksetCompound(physScene, parent); - break; - case (int)LinksetImplementation.Manual: - // ret = new BSLinksetManual(physScene, parent); - break; - default: - ret = new BSLinksetCompound(physScene, parent); - break; - } - return ret; - } - - public BSPhysObject LinksetRoot { get; protected set; } - - public BSScene PhysicsScene { get; private set; } - - static int m_nextLinksetID = 1; - public int LinksetID { get; private set; } - - // The children under the root in this linkset. - protected HashSet m_children; - - // We lock the diddling of linkset classes to prevent any badness. - // This locks the modification of the instances of this class. Changes - // to the physical representation is done via the tainting mechenism. - protected object m_linksetActivityLock = new Object(); - - // Some linksets have a preferred physical shape. - // Returns SHAPE_UNKNOWN if there is no preference. Causes the correct shape to be selected. - public virtual BSPhysicsShapeType PreferredPhysicalShape(BSPhysObject requestor) - { - return BSPhysicsShapeType.SHAPE_UNKNOWN; - } - - // We keep the prim's mass in the linkset structure since it could be dependent on other prims - public float LinksetMass { get; protected set; } - - public virtual bool LinksetIsColliding { get { return false; } } - - public OMV.Vector3 CenterOfMass - { - get { return ComputeLinksetCenterOfMass(); } - } - - public OMV.Vector3 GeometricCenter - { - get { return ComputeLinksetGeometricCenter(); } - } - - protected BSLinkset(BSScene scene, BSPhysObject parent) - { - // A simple linkset of one (no children) - LinksetID = m_nextLinksetID++; - // We create LOTS of linksets. - if (m_nextLinksetID <= 0) - m_nextLinksetID = 1; - PhysicsScene = scene; - LinksetRoot = parent; - m_children = new HashSet(); - LinksetMass = parent.RawMass; - Rebuilding = false; - } - - // Link to a linkset where the child knows the parent. - // Parent changing should not happen so do some sanity checking. - // We return the parent's linkset so the child can track its membership. - // Called at runtime. - public BSLinkset AddMeToLinkset(BSPhysObject child) - { - lock (m_linksetActivityLock) - { - // Don't add the root to its own linkset - if (!IsRoot(child)) - AddChildToLinkset(child); - LinksetMass = ComputeLinksetMass(); - } - return this; - } - - // Remove a child from a linkset. - // Returns a new linkset for the child which is a linkset of one (just the - // orphened child). - // Called at runtime. - public BSLinkset RemoveMeFromLinkset(BSPhysObject child) - { - lock (m_linksetActivityLock) - { - if (IsRoot(child)) - { - // Cannot remove the root from a linkset. - return this; - } - RemoveChildFromLinkset(child); - LinksetMass = ComputeLinksetMass(); - } - - // The child is down to a linkset of just itself - return BSLinkset.Factory(PhysicsScene, child); - } - - // Return 'true' if the passed object is the root object of this linkset - public bool IsRoot(BSPhysObject requestor) - { - return (requestor.LocalID == LinksetRoot.LocalID); - } - - public int NumberOfChildren { get { return m_children.Count; } } - - // Return 'true' if this linkset has any children (more than the root member) - public bool HasAnyChildren { get { return (m_children.Count > 0); } } - - // Return 'true' if this child is in this linkset - public bool HasChild(BSPhysObject child) - { - bool ret = false; - lock (m_linksetActivityLock) - { - ret = m_children.Contains(child); - /* Safer version but the above should work - foreach (BSPhysObject bp in m_children) - { - if (child.LocalID == bp.LocalID) - { - ret = true; - break; - } - } - */ - } - return ret; - } - - // Perform an action on each member of the linkset including root prim. - // Depends on the action on whether this should be done at taint time. - public delegate bool ForEachMemberAction(BSPhysObject obj); - public virtual bool ForEachMember(ForEachMemberAction action) - { - bool ret = false; - lock (m_linksetActivityLock) - { - action(LinksetRoot); - foreach (BSPhysObject po in m_children) - { - if (action(po)) - break; - } - } - return ret; - } - - // I am the root of a linkset and a new child is being added - // Called while LinkActivity is locked. - protected abstract void AddChildToLinkset(BSPhysObject child); - - // I am the root of a linkset and one of my children is being removed. - // Safe to call even if the child is not really in my linkset. - protected abstract void RemoveChildFromLinkset(BSPhysObject child); - - // When physical properties are changed the linkset needs to recalculate - // its internal properties. - // May be called at runtime or taint-time. - public virtual void Refresh(BSPhysObject requestor) - { - LinksetMass = ComputeLinksetMass(); - } - - // Flag denoting the linkset is in the process of being rebuilt. - // Used to know not the schedule a rebuild in the middle of a rebuild. - protected bool Rebuilding { get; set; } - - // The object is going dynamic (physical). Do any setup necessary - // for a dynamic linkset. - // Only the state of the passed object can be modified. The rest of the linkset - // has not yet been fully constructed. - // Return 'true' if any properties updated on the passed object. - // Called at taint-time! - public abstract bool MakeDynamic(BSPhysObject child); - - // The object is going static (non-physical). Do any setup necessary - // for a static linkset. - // Return 'true' if any properties updated on the passed object. - // Called at taint-time! - public abstract bool MakeStatic(BSPhysObject child); - - // Called when a parameter update comes from the physics engine for any object - // of the linkset is received. - // Passed flag is update came from physics engine (true) or the user (false). - // Called at taint-time!! - public abstract void UpdateProperties(BSPhysObject physObject, bool physicalUpdate); - - // Routine used when rebuilding the body of the root of the linkset - // Destroy all the constraints have have been made to root. - // This is called when the root body is changing. - // Returns 'true' of something was actually removed and would need restoring - // Called at taint-time!! - public abstract bool RemoveBodyDependencies(BSPrim child); - - // Companion to RemoveBodyDependencies(). If RemoveBodyDependencies() returns 'true', - // this routine will restore the removed constraints. - // Called at taint-time!! - public abstract void RestoreBodyDependencies(BSPrim child); - - // ================================================================ - protected virtual float ComputeLinksetMass() - { - float mass = LinksetRoot.RawMass; - if (HasAnyChildren) - { - lock (m_linksetActivityLock) - { - foreach (BSPhysObject bp in m_children) - { - mass += bp.RawMass; - } - } - } - return mass; - } - - protected virtual OMV.Vector3 ComputeLinksetCenterOfMass() - { - OMV.Vector3 com; - lock (m_linksetActivityLock) - { - com = LinksetRoot.Position * LinksetRoot.RawMass; - float totalMass = LinksetRoot.RawMass; - - foreach (BSPhysObject bp in m_children) - { - com += bp.Position * bp.RawMass; - totalMass += bp.RawMass; - } - if (totalMass != 0f) - com /= totalMass; - } - - return com; - } - - protected virtual OMV.Vector3 ComputeLinksetGeometricCenter() - { - OMV.Vector3 com; - lock (m_linksetActivityLock) - { - com = LinksetRoot.Position; - - foreach (BSPhysObject bp in m_children) - { - com += bp.Position * bp.RawMass; - } - com /= (m_children.Count + 1); - } - - return com; - } - - // Invoke the detailed logger and output something if it's enabled. - protected void DetailLog(string msg, params Object[] args) - { - if (PhysicsScene.PhysicsLogging.Enabled) - PhysicsScene.DetailLog(msg, args); - } - -} -} -- cgit v1.1