/// <summary>
/// Search for an entry that contains either a monster or an item with the given id, returns the index, or -1
/// if such an entry does not exist. Optionally include an offsets to begin the search at.
/// </summary>
/// <param name="id">The id to search for.</param>
/// <param name="entryOffset">Only search entries with index >= this offset.</param>
/// <param name="monsterOffset">Only search monsters with index >= this offset.</param>
/// <param name="itemOffset">Only search items with index >= this offset.</param>
/// <returns>A tuple containing first the index of the entry, then the index of the monster, then the index of
/// the item, or -1 if it doesn't exist.</returns>
public Tuple <int, int, int> FindEntry(long id, int entryOffset, int monsterOffset, int itemOffset)
{
List <ExtraDropEntry> offsetEntries = Entries.Skip(entryOffset).ToList();
for (int i = 0; i < offsetEntries.Count; ++i)
{
ExtraDropEntry entry = offsetEntries[i];
// The problem here is that item ids are uint while monster ids are regular int. So we instead read it
// as a long to be able to store both values and then cast it to either an int or uint. We can simply
// discard the most significant bits since they really shouldn't have been specified anyway.
int monsterIndex = entry.FindMonster(unchecked ((int)id), monsterOffset);
int itemIndex = entry.FindItem(unchecked ((uint)id), itemOffset);
if (monsterIndex > -1 || itemIndex > -1)
{
return(Tuple.Create(i + entryOffset, monsterIndex, itemIndex));
}
// It only makes sense to check the offset the first time because we're still in the same entry.
// However, when we move to the next entry, it makes sense to set it to 0.
monsterOffset = 0;
itemOffset = 0;
}
return(Tuple.Create(-1, -1, -1));
}
/// <summary>
/// Construct the extra drops table by deserializing from a stream.
/// </summary>
/// <param name="input">The input stream to deserialize from.</param>
public ExtraDropTable(Stream input)
{
BinaryReader reader = new BinaryReader(input);
// The first 4 bytes is believed to be the version number, although this isn't 100% confirmed. We will only
// support version 1 for now, because other versions may have unknown structure.
int version = reader.ReadInt32();
if (version != 1)
{
throw new System.NotSupportedException(version.ToString());
}
Version = version;
// The number of ExtraDropEntry that exists in this table.
int numEntries = reader.ReadInt32();
Entries.Capacity = numEntries;
for (int i = 0; i < numEntries; ++i)
{
ExtraDropEntry entry = new ExtraDropEntry(input);
Entries.Add(entry);
}
}
/// <summary>
/// Clones an existing entry and add it to the list of entries and returns it.
/// </summary>
/// <param name="index">The index of the entry to clone.</param>
/// <returns>The cloned entry.</returns>
public ExtraDropEntry CloneEntry(int index)
{
ExtraDropEntry entry = new ExtraDropEntry(Entries[index]);
Entries.Add(entry);
return(entry);
}
/// <summary>
/// Adds a new blank entry to the list of entries and returns it.
/// </summary>
/// <returns>A blank entry.</returns>
public ExtraDropEntry NewEntry()
{
ExtraDropEntry entry = new ExtraDropEntry();
Entries.Add(entry);
return(entry);
}
/// <summary>
/// Constructs a new entry by cloning an existing entry.
/// </summary>
/// <param name="entry">The entry to clone.</param>
public ExtraDropEntry(ExtraDropEntry entry)
{
Name = entry.Name;
Type = entry.Type;
// There are always 8 probabilities based on the EXTRADROPTABLE.h struct that Teemo Cell extracted from the
// gs.
for (int i = 0; i < 8; ++i)
{
_dropNumProbabilities[i] = entry._dropNumProbabilities[i];
}
foreach (int monsterId in entry.Monsters)
{
Monsters.Add(monsterId);
}
foreach (ExtraDropItem item in entry.DropItems)
{
DropItems.Add(new ExtraDropItem(item));
}
}