/// <summary>
/// Tests for sendFrom is working and grid attached or in range. Use without range to skip range test. If sendTo is not a block or a grid, will skip grid test. If sendTo is a block, it must be working.
/// </summary>
/// <param name="sendFrom"></param>
/// <param name="sendTo"></param>
/// <param name="range"></param>
/// <returns></returns>
public static bool canSendTo(this IMyCubeBlock sendFrom, IMyEntity sendTo, bool friendsOnly, float range = 0, bool rangeIsSquared = false)
{
sendFrom.throwIfNull_argument("sendFrom");
sendTo.throwIfNull_argument("sendTo");
if (sendFrom.Closed || !sendFrom.IsWorking)
{
return(false);
}
IMyCubeBlock sendToAsBlock = sendTo as IMyCubeBlock;
if (sendToAsBlock != null)
{
if (sendToAsBlock.Closed || !sendToAsBlock.IsWorking)
{
return(false);
}
if (friendsOnly && !sendFrom.canConsiderFriendly(sendToAsBlock))
{
return(false);
}
if (AttachedGrids.isGridAttached(sendFrom.CubeGrid, sendToAsBlock.CubeGrid))
{
return(true);
}
if (range > 0)
{
double distanceSquared = (sendFrom.GetPosition() - sendTo.GetPosition()).LengthSquared();
if (rangeIsSquared)
{
return(distanceSquared < range);
}
else
{
return(distanceSquared < range * range);
}
}
}
else
{
IMyCubeGrid sendToAsGrid = sendTo as IMyCubeGrid;
if (sendToAsGrid != null)
{
if (friendsOnly && !sendFrom.canConsiderFriendly(sendToAsGrid))
{
return(false);
}
if (Rynchodon.AttachedGrids.isGridAttached(sendFrom.CubeGrid, sendToAsGrid))
{
return(true);
}
}
// may or may not be grid
if (range > 0)
{
double distance = sendTo.WorldAABB.Distance(sendFrom.GetPosition());
if (rangeIsSquared)
{
return(distance * distance < range);
}
else
{
return(distance < range);
}
}
}
return(false);
}