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refactor: make llGetLinkName() and llGetLinkKey() use a common GetLinkEntity() method

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Justin Clark-Casey (justincc) 2013-03-15 00:06:42 +00:00
parent 081271e1d7
commit e25ba116a3
1 changed files with 80 additions and 84 deletions
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164
OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
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@ -283,6 +283,80 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
} }
} }
/// <summary>
/// Get a given link entity from a linkset (linked objects and any sitting avatars).
/// </summary>
/// <remarks>
/// If there are any ScenePresence's in the linkset (i.e. because they are sat upon one of the prims), then
/// these are counted as extra entities that correspond to linknums beyond the number of prims in the linkset.
/// The ScenePresences receive linknums in the order in which they sat.
/// </remarks>
/// <returns>
/// The link entity. null if not found.
/// </returns>
/// <param name='linknum'>
/// Can be either a non-negative integer or ScriptBaseClass.LINK_THIS (-4).
/// If ScriptBaseClass.LINK_THIS then the entity containing the script is returned.
/// If the linkset has one entity and a linknum of zero is given, then the single entity is returned. If any
/// positive integer is given in this case then null is returned.
/// If the linkset has more than one entity and a linknum greater than zero but equal to or less than the number
/// of entities, then the entity which corresponds to that linknum is returned.
/// Otherwise, if a positive linknum is given which is greater than the number of entities in the linkset, then
/// null is returned.
/// </param>
public ISceneEntity GetLinkEntity(int linknum)
{
if (linknum < 0)
{
if (linknum == ScriptBaseClass.LINK_THIS)
return m_host;
else
return null;
}
int actualPrimCount = m_host.ParentGroup.PrimCount;
List<UUID> sittingAvatarIds = m_host.ParentGroup.GetSittingAvatars();
int adjustedPrimCount = actualPrimCount + sittingAvatarIds.Count;
// Special case for a single prim. In this case the linknum is zero. However, this will not match a single
// prim that has any avatars sat upon it (in which case the root prim is link 1).
if (linknum == 0)
{
if (actualPrimCount == 1 && sittingAvatarIds.Count == 0)
return m_host;
return null;
}
// Special case to handle a single prim with sitting avatars. GetLinkPart() would only match zero but
// here we must match 1 (ScriptBaseClass.LINK_ROOT).
else if (linknum == ScriptBaseClass.LINK_ROOT && actualPrimCount == 1)
{
if (sittingAvatarIds.Count > 0)
return m_host.ParentGroup.RootPart;
else
return null;
}
else if (linknum <= adjustedPrimCount)
{
if (linknum <= actualPrimCount)
{
return m_host.ParentGroup.GetLinkNumPart(linknum);
}
else
{
ScenePresence sp = World.GetScenePresence(sittingAvatarIds[linknum - actualPrimCount - 1]);
if (sp != null)
return sp;
else
return null;
}
}
else
{
return null;
}
}
public List<SceneObjectPart> GetLinkParts(int linkType) public List<SceneObjectPart> GetLinkParts(int linkType)
{ {
return GetLinkParts(m_host, linkType); return GetLinkParts(m_host, linkType);
@ -3697,47 +3771,12 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
{ {
m_host.AddScriptLPS(1); m_host.AddScriptLPS(1);
if (linknum < 0) ISceneEntity entity = GetLinkEntity(linknum);
{
if (linknum == ScriptBaseClass.LINK_THIS)
return m_host.UUID.ToString();
else
return ScriptBaseClass.NULL_KEY;
}
int actualPrimCount = m_host.ParentGroup.PrimCount; if (entity != null)
List<UUID> sittingAvatarIds = m_host.ParentGroup.GetSittingAvatars(); return entity.UUID.ToString();
int adjustedPrimCount = actualPrimCount + sittingAvatarIds.Count;
// Special case for a single prim. In this case the linknum is zero. However, this will not match a single
// prim that has any avatars sat upon it (in which case the root prim is link 1).
if (linknum == 0)
{
if (actualPrimCount == 1 && sittingAvatarIds.Count == 0)
return m_host.UUID.ToString();
return ScriptBaseClass.NULL_KEY;
}
// Special case to handle a single prim with sitting avatars. GetLinkPart() would only match zero but
// here we must match 1 (ScriptBaseClass.LINK_ROOT).
else if (linknum == 1 && actualPrimCount == 1)
{
if (sittingAvatarIds.Count > 0)
return m_host.ParentGroup.RootPart.UUID.ToString();
else
return ScriptBaseClass.NULL_KEY;
}
else if (linknum <= adjustedPrimCount)
{
if (linknum <= actualPrimCount)
return m_host.ParentGroup.GetLinkNumPart(linknum).UUID.ToString();
else
return sittingAvatarIds[linknum - actualPrimCount - 1].ToString();
}
else else
{
return ScriptBaseClass.NULL_KEY; return ScriptBaseClass.NULL_KEY;
}
} }
/// <summary> /// <summary>
@ -3783,55 +3822,12 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
{ {
m_host.AddScriptLPS(1); m_host.AddScriptLPS(1);
if (linknum < 0) ISceneEntity entity = GetLinkEntity(linknum);
{
if (linknum == ScriptBaseClass.LINK_THIS)
return m_host.Name;
else
return ScriptBaseClass.NULL_KEY;
}
int actualPrimCount = m_host.ParentGroup.PrimCount; if (entity != null)
List<UUID> sittingAvatarIds = m_host.ParentGroup.GetSittingAvatars(); return entity.Name;
int adjustedPrimCount = actualPrimCount + sittingAvatarIds.Count;
// Special case for a single prim. In this case the linknum is zero. However, this will not match a single
// prim that has any avatars sat upon it (in which case the root prim is link 1).
if (linknum == 0)
{
if (actualPrimCount == 1 && sittingAvatarIds.Count == 0)
return m_host.Name;
return ScriptBaseClass.NULL_KEY;
}
// Special case to handle a single prim with sitting avatars. GetLinkPart() would only match zero but
// here we must match 1 (ScriptBaseClass.LINK_ROOT).
else if (linknum == 1 && actualPrimCount == 1)
{
if (sittingAvatarIds.Count > 0)
return m_host.ParentGroup.RootPart.Name;
else
return ScriptBaseClass.NULL_KEY;
}
else if (linknum <= adjustedPrimCount)
{
if (linknum <= actualPrimCount)
{
return m_host.ParentGroup.GetLinkNumPart(linknum).Name;
}
else
{
ScenePresence sp = World.GetScenePresence(sittingAvatarIds[linknum - actualPrimCount - 1]);
if (sp != null)
return sp.Name;
else
return ScriptBaseClass.NULL_KEY;
}
}
else else
{
return ScriptBaseClass.NULL_KEY; return ScriptBaseClass.NULL_KEY;
}
} }
public LSL_Integer llGetInventoryNumber(int type) public LSL_Integer llGetInventoryNumber(int type)