/// <summary>
/// Find defined things in the room and within distance and return an IEnumerable.
/// </summary>
/// <param name="position">The source position.</param>
/// <param name="distance">The max. distance from the position.</param>
/// <param name="category">The EntityCategory to search for.</param>
/// <returns></returns>
private IEnumerable <Thing> FindItemsInRoomAndWithinDistance(IntVec3 position, float distance, EntityCategory category)
{
// Find the room at the position
Room room = position.GetRoom();
if (room == null)
{
IEnumerable <IntVec3> posList = position.AdjacentSquares8WayAndInside();
foreach (IntVec3 pos in posList)
{
if (pos.GetRoom() == null)
{
continue;
}
room = pos.GetRoom();
break;
}
}
// LINQ => Compare: room // distance // category
return(Find.ListerThings.AllThings.Where(t => t.def.category == category &&
room == t.Position.GetRoom() &&
t.Position.WithinHorizontalDistanceOf(position, distance)));
}