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/*
* 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.Linq;
using System.Text;
namespace OpenSim.Region.Physics.BulletSPlugin
{
public abstract class BSShape
{
public IntPtr ptr { get; set; }
public BSPhysicsShapeType type { get; set; }
public System.UInt64 key { get; set; }
public int referenceCount { get; set; }
public DateTime lastReferenced { get; set; }
public BSShape()
{
ptr = IntPtr.Zero;
type = BSPhysicsShapeType.SHAPE_UNKNOWN;
key = 0;
referenceCount = 0;
lastReferenced = DateTime.Now;
}
// Get a reference to a physical shape. Create if it doesn't exist
public static BSShape GetShapeReference(BSScene physicsScene, bool forceRebuild, BSPhysObject prim)
{
BSShape ret = null;
if (prim.PreferredPhysicalShape == BSPhysicsShapeType.SHAPE_CAPSULE)
{
// an avatar capsule is close to a native shape (it is not shared)
ret = BSShapeNative.GetReference(physicsScene, prim, BSPhysicsShapeType.SHAPE_CAPSULE,
FixedShapeKey.KEY_CAPSULE);
physicsScene.DetailLog("{0},BSShape.GetShapeReference,avatarCapsule,shape={1}", prim.LocalID, ret);
}
// Compound shapes are handled special as they are rebuilt from scratch.
// This isn't too great a hardship since most of the child shapes will already been created.
if (ret == null && prim.PreferredPhysicalShape == BSPhysicsShapeType.SHAPE_COMPOUND)
{
// Getting a reference to a compound shape gets you the compound shape with the root prim shape added
ret = BSShapeCompound.GetReference(prim);
physicsScene.DetailLog("{0},BSShapeCollection.CreateGeom,compoundShape,shape={1}", prim.LocalID, ret);
}
if (ret == null)
ret = GetShapeReferenceNonSpecial(physicsScene, forceRebuild, prim);
return ret;
}
public static BSShape GetShapeReferenceNonSpecial(BSScene physicsScene, bool forceRebuild, BSPhysObject prim)
{
return null;
}
public static BSShape GetShapeReferenceNonNative(BSScene physicsScene, bool forceRebuild, BSPhysObject prim)
{
return null;
}
// Release the use of a physical shape.
public abstract void Dereference(BSScene physicsScene);
// All shapes have a static call to get a reference to the physical shape
// protected abstract static BSShape GetReference();
public override string ToString()
{
StringBuilder buff = new StringBuilder();
buff.Append("<p=");
buff.Append(ptr.ToString("X"));
buff.Append(",s=");
buff.Append(type.ToString());
buff.Append(",k=");
buff.Append(key.ToString("X"));
buff.Append(",c=");
buff.Append(referenceCount.ToString());
buff.Append(">");
return buff.ToString();
}
}
public class BSShapeNull : BSShape
{
public BSShapeNull() : base()
{
}
public static BSShape GetReference() { return new BSShapeNull(); }
public override void Dereference(BSScene physicsScene) { /* The magic of garbage collection will make this go away */ }
}
public class BSShapeNative : BSShape
{
private static string LogHeader = "[BULLETSIM SHAPE NATIVE]";
public BSShapeNative() : base()
{
}
public static BSShape GetReference(BSScene physicsScene, BSPhysObject prim,
BSPhysicsShapeType shapeType, FixedShapeKey shapeKey)
{
// Native shapes are not shared and are always built anew.
return new BSShapeNative(physicsScene, prim, shapeType, shapeKey);
}
private BSShapeNative(BSScene physicsScene, BSPhysObject prim,
BSPhysicsShapeType shapeType, FixedShapeKey shapeKey)
{
ShapeData nativeShapeData = new ShapeData();
nativeShapeData.Type = shapeType;
nativeShapeData.ID = prim.LocalID;
nativeShapeData.Scale = prim.Scale;
nativeShapeData.Size = prim.Scale;
nativeShapeData.MeshKey = (ulong)shapeKey;
nativeShapeData.HullKey = (ulong)shapeKey;
if (shapeType == BSPhysicsShapeType.SHAPE_CAPSULE)
{
ptr = BulletSimAPI.BuildCapsuleShape2(physicsScene.World.ptr, 1f, 1f, prim.Scale);
physicsScene.DetailLog("{0},BSShapeCollection.BuiletPhysicalNativeShape,capsule,scale={1}", prim.LocalID, prim.Scale);
}
else
{
ptr = BulletSimAPI.BuildNativeShape2(physicsScene.World.ptr, nativeShapeData);
}
if (ptr == IntPtr.Zero)
{
physicsScene.Logger.ErrorFormat("{0} BuildPhysicalNativeShape failed. ID={1}, shape={2}",
LogHeader, prim.LocalID, shapeType);
}
type = shapeType;
key = (UInt64)shapeKey;
}
// Make this reference to the physical shape go away since native shapes are not shared.
public override void Dereference(BSScene physicsScene)
{
// Native shapes are not tracked and are released immediately
physicsScene.DetailLog("{0},BSShapeCollection.DereferenceShape,deleteNativeShape,shape={1}", BSScene.DetailLogZero, this);
BulletSimAPI.DeleteCollisionShape2(physicsScene.World.ptr, ptr);
ptr = IntPtr.Zero;
// Garbage collection will free up this instance.
}
}
public class BSShapeMesh : BSShape
{
private static string LogHeader = "[BULLETSIM SHAPE MESH]";
private static Dictionary<System.UInt64, BSShapeMesh> Meshes = new Dictionary<System.UInt64, BSShapeMesh>();
public BSShapeMesh() : base()
{
}
public static BSShape GetReference() { return new BSShapeNull(); }
public override void Dereference(BSScene physicsScene) { }
}
public class BSShapeHull : BSShape
{
private static string LogHeader = "[BULLETSIM SHAPE HULL]";
private static Dictionary<System.UInt64, BSShapeHull> Hulls = new Dictionary<System.UInt64, BSShapeHull>();
public BSShapeHull() : base()
{
}
public static BSShape GetReference() { return new BSShapeNull(); }
public override void Dereference(BSScene physicsScene) { }
}
public class BSShapeCompound : BSShape
{
private static string LogHeader = "[BULLETSIM SHAPE COMPOUND]";
public BSShapeCompound() : base()
{
}
public static BSShape GetReference(BSPhysObject prim)
{
return new BSShapeNull();
}
public override void Dereference(BSScene physicsScene) { }
}
}
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