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[Simian]

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* Added an IPhysicsProvider and a PhysicsSimple implementation that provides basic physics-related functionality. Currently only ray/prim intersection and getting a prim's mass
* Initial prim CRC handling
* Porting some LSL fixes from OpenSim

git-svn-id: http://libopenmetaverse.googlecode.com/svn/libopenmetaverse/trunk@2473 52acb1d6-8a22-11de-b505-999d5b087335
This commit is contained in:
John Hurliman
2009-03-06 02:10:52 +00:00
parent ac784d54aa
commit a464b54dd1
15 changed files with 543 additions and 241 deletions
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65
Programs/Simian/SimulationObject.cs
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@@ -36,6 +36,36 @@ namespace Simian
protected SimpleMesh[] Meshes;
protected SimpleMesh[] WorldTransformedMeshes;
uint? crc;
public uint CRC
{
get
{
if (crc.HasValue)
return crc.Value;
int len = 0;
byte[] bytes = new byte[1024];
ObjectUpdatePacket.ObjectDataBlock block = BuildUpdateBlock(Prim, PrimFlags.None, 0);
block.ToBytes(bytes, ref len);
--len;
CRC32 crc32 = new CRC32();
crc32.Update(bytes, 0, len);
crc = crc32.CRC;
return crc.Value;
}
set
{
if (value == 0)
crc = null;
else
crc = value;
}
}
public SimulationObject(SimulationObject obj)
{
Prim = new Primitive(obj.Prim);
@@ -201,42 +231,29 @@ namespace Simian
}
}
public static ObjectUpdatePacket BuildFullUpdate(Primitive obj, ulong regionHandle, PrimFlags flags)
public static ObjectUpdatePacket BuildFullUpdate(Primitive obj, ulong regionHandle, PrimFlags flags, uint crc)
{
ObjectUpdatePacket update = new ObjectUpdatePacket();
update.RegionData.RegionHandle = regionHandle;
update.RegionData.TimeDilation = UInt16.MaxValue;
update.ObjectData = new ObjectUpdatePacket.ObjectDataBlock[1];
update.ObjectData[0] = BuildUpdateBlock(obj, regionHandle, flags);
update.ObjectData[0] = BuildUpdateBlock(obj, flags, crc);
return update;
}
public static byte[] BuildObjectData(Vector3 position, Quaternion rotation, Vector3 velocity,
Vector3 acceleration, Vector3 angularVelocity)
public static ObjectUpdatePacket.ObjectDataBlock BuildUpdateBlock(Primitive obj, PrimFlags flags, uint crc)
{
byte[] objectData = new byte[60];
int pos = 0;
position.GetBytes().CopyTo(objectData, pos);
pos += 12;
velocity.GetBytes().CopyTo(objectData, pos);
pos += 12;
acceleration.GetBytes().CopyTo(objectData, pos);
pos += 12;
rotation.GetBytes().CopyTo(objectData, pos);
pos += 12;
angularVelocity.GetBytes().CopyTo(objectData, pos);
return objectData;
}
public static ObjectUpdatePacket.ObjectDataBlock BuildUpdateBlock(Primitive obj, ulong regionHandle, PrimFlags flags)
{
byte[] objectData = BuildObjectData(obj.Position, obj.Rotation, obj.Velocity,
obj.Acceleration, obj.AngularVelocity);
obj.Position.ToBytes(objectData, 0);
obj.Velocity.ToBytes(objectData, 12);
obj.Acceleration.ToBytes(objectData, 24);
obj.Rotation.ToBytes(objectData, 36);
obj.AngularVelocity.ToBytes(objectData, 48);
ObjectUpdatePacket.ObjectDataBlock update = new ObjectUpdatePacket.ObjectDataBlock();
update.ClickAction = (byte)obj.ClickAction;
update.CRC = 0;
update.CRC = crc;
update.ExtraParams = obj.GetExtraParamsBytes();
update.Flags = (byte)flags;
update.FullID = obj.ID;
@@ -273,14 +290,14 @@ namespace Simian
update.PSBlock = obj.ParticleSys.GetBytes();
update.TextColor = obj.TextColor.GetBytes(true);
update.TextureAnim = obj.TextureAnim.GetBytes();
update.TextureEntry = obj.Textures == null ? new byte[0] : obj.Textures.ToBytes();
update.TextureEntry = obj.Textures == null ? Utils.EmptyBytes : obj.Textures.ToBytes();
update.Radius = obj.SoundRadius;
update.Scale = obj.Scale;
update.Sound = obj.Sound;
update.State = obj.PrimData.State;
update.Text = Utils.StringToBytes(obj.Text);
update.UpdateFlags = (uint)flags;
update.Data = obj.GenericData == null ? new byte[0] : obj.GenericData;
update.Data = obj.GenericData == null ? Utils.EmptyBytes : obj.GenericData;
return update;
}