public static byte[] BuildObjectData(Vector3 position, Quaternion rotation, Vector3 velocity,
Vector3 acceleration, Vector3 angularVelocity)
{
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;
}
/// <summary>
/// Send a Multiple Object Update packet to change the size, scale or rotation of a primitive
/// </summary>
/// <param name="simulator">A reference to the <seealso cref="OpenMetaverse.Simulator"/> object where the object resides</param>
/// <param name="localID">The objects ID which is local to the simulator the object is in</param>
/// <param name="data">The new rotation, size, or position of the target object</param>
/// <param name="type">The flags from the <seealso cref="UpdateType"/> Enum</param>
public void UpdateObject(Simulator simulator, uint localID, Vector3 data, UpdateType type)
{
MultipleObjectUpdatePacket multiObjectUpdate = new MultipleObjectUpdatePacket();
multiObjectUpdate.AgentData.AgentID = Client.Self.AgentID;
multiObjectUpdate.AgentData.SessionID = Client.Self.SessionID;
multiObjectUpdate.ObjectData = new MultipleObjectUpdatePacket.ObjectDataBlock[1];
multiObjectUpdate.ObjectData[0] = new MultipleObjectUpdatePacket.ObjectDataBlock();
multiObjectUpdate.ObjectData[0].Type = (byte)type;
multiObjectUpdate.ObjectData[0].ObjectLocalID = localID;
multiObjectUpdate.ObjectData[0].Data = data.GetBytes();
Client.Network.SendPacket(multiObjectUpdate, simulator);
}
public AMeshKey GetMeshUniqueKey(PrimitiveBaseShape primShape, Vector3 size, byte lod, bool convex)
{
AMeshKey key = new AMeshKey();
Byte[] someBytes;
key.hashB = 5181;
key.hashC = 5181;
ulong hash = 5381;
if (primShape.SculptEntry)
{
key.uuid = primShape.SculptTexture;
key.hashC = mdjb2(key.hashC, primShape.SculptType);
key.hashC = mdjb2(key.hashC, primShape.PCode);
}
else
{
hash = mdjb2(hash, primShape.PathCurve);
hash = mdjb2(hash, (byte)primShape.HollowShape);
hash = mdjb2(hash, (byte)primShape.ProfileShape);
hash = mdjb2(hash, primShape.PathBegin);
hash = mdjb2(hash, primShape.PathEnd);
hash = mdjb2(hash, primShape.PathScaleX);
hash = mdjb2(hash, primShape.PathScaleY);
hash = mdjb2(hash, primShape.PathShearX);
key.hashA = hash;
hash = key.hashB;
hash = mdjb2(hash, primShape.PathShearY);
hash = mdjb2(hash, (byte)primShape.PathTwist);
hash = mdjb2(hash, (byte)primShape.PathTwistBegin);
hash = mdjb2(hash, (byte)primShape.PathRadiusOffset);
hash = mdjb2(hash, (byte)primShape.PathTaperX);
hash = mdjb2(hash, (byte)primShape.PathTaperY);
hash = mdjb2(hash, primShape.PathRevolutions);
hash = mdjb2(hash, (byte)primShape.PathSkew);
hash = mdjb2(hash, primShape.ProfileBegin);
hash = mdjb2(hash, primShape.ProfileEnd);
hash = mdjb2(hash, primShape.ProfileHollow);
hash = mdjb2(hash, primShape.PCode);
key.hashB = hash;
}
hash = key.hashC;
hash = mdjb2(hash, lod);
if (size == m_MeshUnitSize)
{
hash = hash << 8;
hash |= 8;
}
else
{
someBytes = size.GetBytes();
for (int i = 0; i < someBytes.Length; i++)
hash = mdjb2(hash, someBytes[i]);
hash = hash << 8;
}
if (convex)
hash |= 4;
if (primShape.SculptEntry)
{
hash |= 1;
if (primShape.SculptType == (byte)SculptType.Mesh)
hash |= 2;
}
key.hashC = hash;
return key;
}
public byte[] GetFlexiBytes()
{
byte[] data = new byte[16];
int i = 0;
// Softness is packed in the upper bits of tension and drag
data[i] = (byte)((_flexiSoftness & 2) << 6);
data[i + 1] = (byte)((_flexiSoftness & 1) << 7);
data[i++] |= (byte)((byte)(_flexiTension * 10.01f) & 0x7F);
data[i++] |= (byte)((byte)(_flexiDrag * 10.01f) & 0x7F);
data[i++] = (byte)((_flexiGravity + 10.0f) * 10.01f);
data[i++] = (byte)(_flexiWind * 10.01f);
Vector3 lForce = new Vector3(_flexiForceX, _flexiForceY, _flexiForceZ);
lForce.GetBytes().CopyTo(data, i);
return data;
}
/// <summary>
/// Calculate a hash value over fields that can affect the underlying physics shape.
/// Things like RenderMaterials and TextureEntry data are not included.
/// </summary>
/// <param name="size"></param>
/// <param name="lod"></param>
/// <returns>ulong - a calculated hash value</returns>
public ulong GetMeshKey(Vector3 size, float lod)
{
ulong hash = 5381;
hash = djb2(hash, this.PathCurve);
hash = djb2(hash, (byte)((byte)this.HollowShape | (byte)this.ProfileShape));
hash = djb2(hash, this.PathBegin);
hash = djb2(hash, this.PathEnd);
hash = djb2(hash, this.PathScaleX);
hash = djb2(hash, this.PathScaleY);
hash = djb2(hash, this.PathShearX);
hash = djb2(hash, this.PathShearY);
hash = djb2(hash, (byte)this.PathTwist);
hash = djb2(hash, (byte)this.PathTwistBegin);
hash = djb2(hash, (byte)this.PathRadiusOffset);
hash = djb2(hash, (byte)this.PathTaperX);
hash = djb2(hash, (byte)this.PathTaperY);
hash = djb2(hash, this.PathRevolutions);
hash = djb2(hash, (byte)this.PathSkew);
hash = djb2(hash, this.ProfileBegin);
hash = djb2(hash, this.ProfileEnd);
hash = djb2(hash, this.ProfileHollow);
// TODO: Separate scale out from the primitive shape data (after
// scaling is supported at the physics engine level)
byte[] scaleBytes = size.GetBytes();
for (int i = 0; i < scaleBytes.Length; i++)
hash = djb2(hash, scaleBytes[i]);
// Include LOD in hash, accounting for endianness
byte[] lodBytes = new byte[4];
Buffer.BlockCopy(BitConverter.GetBytes(lod), 0, lodBytes, 0, 4);
if (!BitConverter.IsLittleEndian)
{
Array.Reverse(lodBytes, 0, 4);
}
for (int i = 0; i < lodBytes.Length; i++)
hash = djb2(hash, lodBytes[i]);
// include sculpt UUID
if (this.SculptEntry)
{
scaleBytes = this.SculptTexture.GetBytes();
for (int i = 0; i < scaleBytes.Length; i++)
hash = djb2(hash, scaleBytes[i]);
hash = djb2(hash, this.SculptType);
}
return hash;
}