Initial update to OpenSim 0.8.2.1 source code.

1 files changed, 0 insertions, 458 deletions

diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSTerrainManager.cs b/OpenSim/Region/Physics/BulletSPlugin/BSTerrainManager.cs
deleted file mode 100755
index 2e9db39..0000000
--- a/OpenSim/Region/Physics/BulletSPlugin/BSTerrainManager.cs
+++ /dev/null
@@ -1,458 +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 OpenSim.Framework;
-using OpenSim.Region.Framework;
-using OpenSim.Region.CoreModules;
-using OpenSim.Region.Physics.Manager;
-
-using Nini.Config;
-using log4net;
-
-using OpenMetaverse;
-
-namespace OpenSim.Region.Physics.BulletSPlugin
-{
-
-// The physical implementation of the terrain is wrapped in this class.
-public abstract class BSTerrainPhys : IDisposable
-{
-    public enum TerrainImplementation
-    {
-        Heightmap   = 0,
-        Mesh        = 1
-    }
-
-    public BSScene PhysicsScene { get; private set; }
-    // Base of the region in world coordinates. Coordinates inside the region are relative to this.
-    public Vector3 TerrainBase { get; private set; }
-    public uint ID { get; private set; }
-
-    public BSTerrainPhys(BSScene physicsScene, Vector3 regionBase, uint id)
-    {
-        PhysicsScene = physicsScene;
-        TerrainBase = regionBase;
-        ID = id;
-    }
-    public abstract void Dispose();
-    public abstract float GetTerrainHeightAtXYZ(Vector3 pos);
-    public abstract float GetWaterLevelAtXYZ(Vector3 pos);
-}
-
-// ==========================================================================================
-public sealed class BSTerrainManager : IDisposable
-{
-    static string LogHeader = "[BULLETSIM TERRAIN MANAGER]";
-
-    // These height values are fractional so the odd values will be
-    //     noticable when debugging.
-    public const float HEIGHT_INITIALIZATION = 24.987f;
-    public const float HEIGHT_INITIAL_LASTHEIGHT = 24.876f;
-    public const float HEIGHT_GETHEIGHT_RET = 24.765f;
-    public const float WATER_HEIGHT_GETHEIGHT_RET = 19.998f;
-
-    // If the min and max height are equal, we reduce the min by this
-    //    amount to make sure that a bounding box is built for the terrain.
-    public const float HEIGHT_EQUAL_FUDGE = 0.2f;
-
-    // Until the whole simulator is changed to pass us the region size, we rely on constants.
-    public Vector3 DefaultRegionSize = new Vector3(Constants.RegionSize, Constants.RegionSize, Constants.RegionHeight);
-
-    // The scene that I am part of
-    private BSScene PhysicsScene { get; set; }
-
-    // The ground plane created to keep thing from falling to infinity.
-    private BulletBody m_groundPlane;
-
-    // If doing mega-regions, if we're region zero we will be managing multiple
-    //    region terrains since region zero does the physics for the whole mega-region.
-    private Dictionary<Vector3, BSTerrainPhys> m_terrains;
-
-    // Flags used to know when to recalculate the height.
-    private bool m_terrainModified = false;
-
-    // If we are doing mega-regions, terrains are added from TERRAIN_ID to m_terrainCount.
-    // This is incremented before assigning to new region so it is the last ID allocated.
-    private uint m_terrainCount = BSScene.CHILDTERRAIN_ID - 1;
-    public uint HighestTerrainID { get {return m_terrainCount; } }
-
-    // If doing mega-regions, this holds our offset from region zero of
-    //     the mega-regions. "parentScene" points to the PhysicsScene of region zero.
-    private Vector3 m_worldOffset;
-    // If the parent region (region 0), this is the extent of the combined regions
-    //     relative to the origin of region zero
-    private Vector3 m_worldMax;
-    private PhysicsScene MegaRegionParentPhysicsScene { get; set; }
-
-    public BSTerrainManager(BSScene physicsScene)
-    {
-        PhysicsScene = physicsScene;
-        m_terrains = new Dictionary<Vector3,BSTerrainPhys>();
-
-        // Assume one region of default size
-        m_worldOffset = Vector3.Zero;
-        m_worldMax = new Vector3(DefaultRegionSize);
-        MegaRegionParentPhysicsScene = null;
-    }
-
-    public void Dispose()
-    {
-        ReleaseGroundPlaneAndTerrain();
-    }
-
-    // Create the initial instance of terrain and the underlying ground plane.
-    // This is called from the initialization routine so we presume it is
-    //    safe to call Bullet in real time. We hope no one is moving prims around yet.
-    public void CreateInitialGroundPlaneAndTerrain()
-    {
-        // The ground plane is here to catch things that are trying to drop to negative infinity
-        BulletShape groundPlaneShape = PhysicsScene.PE.CreateGroundPlaneShape(BSScene.GROUNDPLANE_ID, 1f, BSParam.TerrainCollisionMargin);
-        m_groundPlane = PhysicsScene.PE.CreateBodyWithDefaultMotionState(groundPlaneShape, 
-                                        BSScene.GROUNDPLANE_ID, Vector3.Zero, Quaternion.Identity);
-
-        PhysicsScene.PE.AddObjectToWorld(PhysicsScene.World, m_groundPlane);
-        PhysicsScene.PE.UpdateSingleAabb(PhysicsScene.World, m_groundPlane);
-        // Ground plane does not move
-        PhysicsScene.PE.ForceActivationState(m_groundPlane, ActivationState.DISABLE_SIMULATION);
-        // Everything collides with the ground plane.
-        m_groundPlane.collisionType = CollisionType.Groundplane;
-        m_groundPlane.ApplyCollisionMask(PhysicsScene);
-
-        // Build an initial terrain and put it in the world. This quickly gets replaced by the real region terrain.
-        BSTerrainPhys initialTerrain = new BSTerrainHeightmap(PhysicsScene, Vector3.Zero, BSScene.TERRAIN_ID, DefaultRegionSize);
-        m_terrains.Add(Vector3.Zero, initialTerrain);
-    }
-
-    // Release all the terrain structures we might have allocated
-    public void ReleaseGroundPlaneAndTerrain()
-    {
-        if (m_groundPlane.HasPhysicalBody)
-        {
-            if (PhysicsScene.PE.RemoveObjectFromWorld(PhysicsScene.World, m_groundPlane))
-            {
-                PhysicsScene.PE.DestroyObject(PhysicsScene.World, m_groundPlane);
-            }
-            m_groundPlane.Clear();
-        }
-
-        ReleaseTerrain();
-    }
-
-    // Release all the terrain we have allocated
-    public void ReleaseTerrain()
-    {
-        lock (m_terrains)
-        {
-            foreach (KeyValuePair<Vector3, BSTerrainPhys> kvp in m_terrains)
-            {
-                kvp.Value.Dispose();
-            }
-            m_terrains.Clear();
-        }
-    }
-
-    // The simulator wants to set a new heightmap for the terrain.
-    public void SetTerrain(float[] heightMap) {
-        float[] localHeightMap = heightMap;
-        // If there are multiple requests for changes to the same terrain between ticks,
-        //      only do that last one.
-        PhysicsScene.PostTaintObject("TerrainManager.SetTerrain-"+ m_worldOffset.ToString(), 0, delegate()
-        {
-            if (m_worldOffset != Vector3.Zero && MegaRegionParentPhysicsScene != null)
-            {
-                // If a child of a mega-region, we shouldn't have any terrain allocated for us
-                ReleaseGroundPlaneAndTerrain();
-                // If doing the mega-prim stuff and we are the child of the zero region,
-                //    the terrain is added to our parent
-                if (MegaRegionParentPhysicsScene is BSScene)
-                {
-                    DetailLog("{0},SetTerrain.ToParent,offset={1},worldMax={2}",
-                                    BSScene.DetailLogZero, m_worldOffset, m_worldMax);
-                    ((BSScene)MegaRegionParentPhysicsScene).TerrainManager.UpdateTerrain(
-                                    BSScene.CHILDTERRAIN_ID, localHeightMap, 
-                                    m_worldOffset, m_worldOffset + DefaultRegionSize, true);
-                }
-            }
-            else
-            {
-                // If not doing the mega-prim thing, just change the terrain
-                DetailLog("{0},SetTerrain.Existing", BSScene.DetailLogZero);
-
-                UpdateTerrain(BSScene.TERRAIN_ID, localHeightMap,
-                                    m_worldOffset, m_worldOffset + DefaultRegionSize, true);
-            }
-        });
-    }
-
-    // If called with no mapInfo for the terrain, this will create a new mapInfo and terrain
-    //     based on the passed information. The 'id' should be either the terrain id or
-    //     BSScene.CHILDTERRAIN_ID. If the latter, a new child terrain ID will be allocated and used.
-    //     The latter feature is for creating child terrains for mega-regions.
-    // If called with a mapInfo in m_heightMaps and there is an existing terrain body, a new
-    //     terrain shape is created and added to the body.
-    //     This call is most often used to update the heightMap and parameters of the terrain.
-    // (The above does suggest that some simplification/refactoring is in order.)
-    // Called during taint-time.
-    private void UpdateTerrain(uint id, float[] heightMap, 
-                            Vector3 minCoords, Vector3 maxCoords, bool inTaintTime)
-    {
-        DetailLog("{0},BSTerrainManager.UpdateTerrain,call,minC={1},maxC={2},inTaintTime={3}",
-                            BSScene.DetailLogZero, minCoords, maxCoords, inTaintTime);
-
-        // Find high and low points of passed heightmap.
-        // The min and max passed in is usually the area objects can be in (maximum
-        //     object height, for instance). The terrain wants the bounding box for the
-        //     terrain so replace passed min and max Z with the actual terrain min/max Z.
-        float minZ = float.MaxValue;
-        float maxZ = float.MinValue;
-        foreach (float height in heightMap)
-        {
-            if (height < minZ) minZ = height;
-            if (height > maxZ) maxZ = height;
-        }
-        if (minZ == maxZ)
-        {
-            // If min and max are the same, reduce min a little bit so a good bounding box is created.
-            minZ -= BSTerrainManager.HEIGHT_EQUAL_FUDGE;
-        }
-        minCoords.Z = minZ;
-        maxCoords.Z = maxZ;
-
-        Vector3 terrainRegionBase = new Vector3(minCoords.X, minCoords.Y, 0f);
-
-        lock (m_terrains)
-        {
-            BSTerrainPhys terrainPhys;
-            if (m_terrains.TryGetValue(terrainRegionBase, out terrainPhys))
-            {
-                // There is already a terrain in this spot. Free the old and build the new.
-                DetailLog("{0},UpdateTerrain:UpdateExisting,call,id={1},base={2},minC={3},maxC={4}",
-                                BSScene.DetailLogZero, id, terrainRegionBase, minCoords, minCoords);
-
-                // Remove old terrain from the collection
-                m_terrains.Remove(terrainRegionBase);
-                // Release any physical memory it may be using.
-                terrainPhys.Dispose();
-
-                if (MegaRegionParentPhysicsScene == null)
-                {
-                    BSTerrainPhys newTerrainPhys = BuildPhysicalTerrain(terrainRegionBase, id, heightMap, minCoords, maxCoords);
-                    m_terrains.Add(terrainRegionBase, newTerrainPhys);
-
-                    m_terrainModified = true;
-                }
-                else
-                {
-                    // It's possible that Combine() was called after this code was queued.
-                    // If we are a child of combined regions, we don't create any terrain for us.
-                    DetailLog("{0},BSTerrainManager.UpdateTerrain:AmACombineChild,taint", BSScene.DetailLogZero);
-
-                    // Get rid of any terrain that may have been allocated for us.
-                    ReleaseGroundPlaneAndTerrain();
-
-                    // I hate doing this, but just bail
-                    return;
-                }
-            }
-            else
-            {
-                // We don't know about this terrain so either we are creating a new terrain or
-                //    our mega-prim child is giving us a new terrain to add to the phys world
-
-                // if this is a child terrain, calculate a unique terrain id
-                uint newTerrainID = id;
-                if (newTerrainID >= BSScene.CHILDTERRAIN_ID)
-                    newTerrainID = ++m_terrainCount;
-
-                DetailLog("{0},UpdateTerrain:NewTerrain,taint,newID={1},minCoord={2},maxCoord={3}",
-                                            BSScene.DetailLogZero, newTerrainID, minCoords, minCoords);
-                BSTerrainPhys newTerrainPhys = BuildPhysicalTerrain(terrainRegionBase, id, heightMap, minCoords, maxCoords);
-                m_terrains.Add(terrainRegionBase, newTerrainPhys);
-
-                m_terrainModified = true;
-            }
-        }
-    }
-
-    // TODO: redo terrain implementation selection to allow other base types than heightMap.
-    private BSTerrainPhys BuildPhysicalTerrain(Vector3 terrainRegionBase, uint id, float[] heightMap, Vector3 minCoords, Vector3 maxCoords)
-    {
-        PhysicsScene.Logger.DebugFormat("{0} Terrain for {1}/{2} created with {3}", 
-                                            LogHeader, PhysicsScene.RegionName, terrainRegionBase, 
-                                            (BSTerrainPhys.TerrainImplementation)BSParam.TerrainImplementation);
-        BSTerrainPhys newTerrainPhys = null;
-        switch ((int)BSParam.TerrainImplementation)
-        {
-            case (int)BSTerrainPhys.TerrainImplementation.Heightmap:
-                newTerrainPhys = new BSTerrainHeightmap(PhysicsScene, terrainRegionBase, id,
-                                            heightMap, minCoords, maxCoords);
-                break;
-            case (int)BSTerrainPhys.TerrainImplementation.Mesh:
-                newTerrainPhys = new BSTerrainMesh(PhysicsScene, terrainRegionBase, id,
-                                            heightMap, minCoords, maxCoords);
-                break;
-            default:
-                PhysicsScene.Logger.ErrorFormat("{0} Bad terrain implementation specified. Type={1}/{2},Region={3}/{4}",
-                                            LogHeader, 
-                                            (int)BSParam.TerrainImplementation, 
-                                            BSParam.TerrainImplementation,
-                                            PhysicsScene.RegionName, terrainRegionBase);
-                break;
-        }
-        return newTerrainPhys;
-    }
-
-    // Return 'true' of this position is somewhere in known physical terrain space
-    public bool IsWithinKnownTerrain(Vector3 pos)
-    {
-        Vector3 terrainBaseXYZ;
-        BSTerrainPhys physTerrain;
-        return GetTerrainPhysicalAtXYZ(pos, out physTerrain, out terrainBaseXYZ);
-    }
-
-    // Given an X and Y, find the height of the terrain.
-    // Since we could be handling multiple terrains for a mega-region,
-    //    the base of the region is calcuated assuming all regions are
-    //    the same size and that is the default.
-    // Once the heightMapInfo is found, we have all the information to
-    //    compute the offset into the array.
-    private float lastHeightTX = 999999f;
-    private float lastHeightTY = 999999f;
-    private float lastHeight = HEIGHT_INITIAL_LASTHEIGHT;
-    public float GetTerrainHeightAtXYZ(Vector3 pos)
-    {
-        float tX = pos.X;
-        float tY = pos.Y;
-        // You'd be surprized at the number of times this routine is called
-        //    with the same parameters as last time.
-        if (!m_terrainModified && (lastHeightTX == tX) && (lastHeightTY == tY))
-            return lastHeight;
-        m_terrainModified = false;
-
-        lastHeightTX = tX;
-        lastHeightTY = tY;
-        float ret = HEIGHT_GETHEIGHT_RET;
-
-        Vector3 terrainBaseXYZ;
-        BSTerrainPhys physTerrain;
-        if (GetTerrainPhysicalAtXYZ(pos, out physTerrain, out terrainBaseXYZ))
-        {
-            ret = physTerrain.GetTerrainHeightAtXYZ(pos - terrainBaseXYZ);
-        }
-        else
-        {
-            PhysicsScene.Logger.ErrorFormat("{0} GetTerrainHeightAtXY: terrain not found: region={1}, x={2}, y={3}",
-                    LogHeader, PhysicsScene.RegionName, tX, tY);
-            DetailLog("{0},BSTerrainManager.GetTerrainHeightAtXYZ,terrainNotFound,pos={1},base={2}",
-                                BSScene.DetailLogZero, pos, terrainBaseXYZ);
-        }
-
-        lastHeight = ret;
-        return ret;
-    }
-
-    public float GetWaterLevelAtXYZ(Vector3 pos)
-    {
-        float ret = WATER_HEIGHT_GETHEIGHT_RET;
-
-        Vector3 terrainBaseXYZ;
-        BSTerrainPhys physTerrain;
-        if (GetTerrainPhysicalAtXYZ(pos, out physTerrain, out terrainBaseXYZ))
-        {
-            ret = physTerrain.GetWaterLevelAtXYZ(pos);
-        }
-        else
-        {
-            PhysicsScene.Logger.ErrorFormat("{0} GetWaterHeightAtXY: terrain not found: pos={1}, terrainBase={2}, height={3}",
-                    LogHeader, PhysicsScene.RegionName, pos, terrainBaseXYZ, ret);
-        }
-        return ret;
-    }
-
-    // Given an address, return 'true' of there is a description of that terrain and output
-    //    the descriptor class and the 'base' fo the addresses therein.
-    private bool GetTerrainPhysicalAtXYZ(Vector3 pos, out BSTerrainPhys outPhysTerrain, out Vector3 outTerrainBase)
-    {
-        int offsetX = ((int)(pos.X / (int)DefaultRegionSize.X)) * (int)DefaultRegionSize.X;
-        int offsetY = ((int)(pos.Y / (int)DefaultRegionSize.Y)) * (int)DefaultRegionSize.Y;
-        Vector3 terrainBaseXYZ = new Vector3(offsetX, offsetY, 0f);
-
-        BSTerrainPhys physTerrain = null;
-        lock (m_terrains)
-        {
-            m_terrains.TryGetValue(terrainBaseXYZ, out physTerrain);
-        }
-        outTerrainBase = terrainBaseXYZ;
-        outPhysTerrain = physTerrain;
-        return (physTerrain != null);
-    }
-
-    // Although no one seems to check this, I do support combining.
-    public bool SupportsCombining()
-    {
-        return true;
-    }
-
-    // This routine is called two ways:
-    //    One with 'offset' and 'pScene' zero and null but 'extents' giving the maximum
-    //        extent of the combined regions. This is to inform the parent of the size
-    //        of the combined regions.
-    //    and one with 'offset' as the offset of the child region to the base region,
-    //        'pScene' pointing to the parent and 'extents' of zero. This informs the
-    //        child of its relative base and new parent.
-    public void Combine(PhysicsScene pScene, Vector3 offset, Vector3 extents)
-    {
-        m_worldOffset = offset;
-        m_worldMax = extents;
-        MegaRegionParentPhysicsScene = pScene;
-        if (pScene != null)
-        {
-            // We are a child.
-            // We want m_worldMax to be the highest coordinate of our piece of terrain.
-            m_worldMax = offset + DefaultRegionSize;
-        }
-        DetailLog("{0},BSTerrainManager.Combine,offset={1},extents={2},wOffset={3},wMax={4}",
-                        BSScene.DetailLogZero, offset, extents, m_worldOffset, m_worldMax);
-    }
-
-    // Unhook all the combining that I know about.
-    public void UnCombine(PhysicsScene pScene)
-    {
-        // Just like ODE, we don't do anything yet.
-        DetailLog("{0},BSTerrainManager.UnCombine", BSScene.DetailLogZero);
-    }
-
-
-    private void DetailLog(string msg, params Object[] args)
-    {
-        PhysicsScene.PhysicsLogging.Write(msg, args);
-    }
-}
-}