public void GoTo(VobInst guided, VobInst target)
{
// find out if there already is an existing, similar guide-command
// and recycle it if possible before assigning a new one (costly on client-side)
if (guideCommandByVobInst.TryGetValue(guided, out GuideCommandInfo oldInfo))
{
if (oldInfo.GuideCommand.CmdType == (byte)CommandType.GoToVob)
{
if (((GoToVobCommand)oldInfo.GuideCommand).Target.Equals(target))
{
oldInfo.UpdateInfo(oldInfo.GuideCommand, oldInfo.GuidedVobInst, DateTime.MaxValue);
return;
}
}
}
// initialize new guide and remove old one from GUC-memory automatically
GoToVobCommand cmd = new GoToVobCommand(target);
guided.BaseInst.SetGuideCommand(cmd);
// replace possible old guide from script-memory or insert new value
GuideCommandInfo info = new GuideCommandInfo(cmd, guided);
SubscribeGuideCommand(info);
}
protected void UnsubscribeGuideCommand(GuideCommandInfo guideCmdInfo)
{
guideCommandByVobInst.Remove(guideCmdInfo.GuidedVobInst);
}
protected void SubscribeGuideCommand(GuideCommandInfo guideCmdInfo)
{
guideCommandByVobInst[guideCmdInfo.GuidedVobInst] = guideCmdInfo;
}
