/// <summary>
/// Construct a NonPlayerCharacterMovement
/// </summary>
/// <param name="nDialogIndex">the index of an NPC</param>
/// <param name="movementInstructionDataChunk">The full memory chunk of all movement instructions</param>
/// <param name="movementOffsetDataChunk">the full memory chunk of the movement offsets</param>
public NonPlayerCharacterMovement(int nDialogIndex, DataChunk movementInstructionDataChunk, DataChunk movementOffsetDataChunk)
{
// we totally ignore the first entry, since it's bad stuff
if (nDialogIndex == 0)
{
return;
}
this._movementInstructionDataChunk = movementInstructionDataChunk;
this._movementOffsetDataChunk = movementOffsetDataChunk;
this._nDialogIndex = nDialogIndex;
// todo: not a very efficient method of getting a UINT16 from the list -> it has to create a brand new list!
_nOffset = movementOffsetDataChunk.GetChunkAsUint16List() [nDialogIndex];
// if it has the value of 0xFFFF then it indicates there are currently no instructions
if (_nOffset == 0xFFFF)
{
return;
}
// calculate the offset
int nOffsetIndex = (nDialogIndex) * (MAX_COMMAND_LIST_ENTRIES * MAX_MOVEMENT_COMMAND_SIZE);
// get a copy because the GetAsByteList is an expensive method call
List <byte> rawData = movementInstructionDataChunk.GetAsByteList();
// gets a smaller version of it - much easier to keep track of
_loadedData = rawData.GetRange(nOffsetIndex, MAX_COMMAND_LIST_ENTRIES * 2);
int nIndex = _nOffset;
for (int i = 0; i < MAX_COMMAND_LIST_ENTRIES; i++)
{
byte nIterations = _loadedData[nIndex];
MovementCommandDirection direction = (MovementCommandDirection)_loadedData[nIndex + 1];
// if we have hit 0xFF then there is nothing else in the list and we can just return
if (nIterations == 0xFF || nIterations == 0)
{
return;
}
if (!(direction == MovementCommandDirection.East || direction == MovementCommandDirection.West || direction == MovementCommandDirection.North ||
direction == MovementCommandDirection.South))
{
throw new Ultima5ReduxException("a bad direction was set: " + direction.ToString());
}
// we have a proper movement instruction so let's add it to the queue
MovementCommand movementCommand = new MovementCommand(direction, nIterations);
//this.movementQueue.Enqueue(movementCommand);
AddNewMovementInstruction(movementCommand);
// we actually grab from the offset, but it is circular, so we need to mod it
nIndex = (nIndex + 2) % (MAX_COMMAND_LIST_ENTRIES * 2);
}
}
public MapCharacterStates(DataChunk charStatesDataChunk, TileReferences tileReferences)
{
DataChunk dataChunk = charStatesDataChunk;
List <UInt16> characterStateBytes = dataChunk.GetChunkAsUint16List();
for (int nIndex = 0; nIndex < MAX_CHARACTER_STATES; nIndex++)
{
_characterStates.Add(new MapCharacterState(tileReferences,
characterStateBytes.GetRange(nIndex * MapCharacterAnimationState.NBYTES, MapCharacterAnimationState.NBYTES).ToArray(), nIndex));
}
}
public void InitializeLocationNames()
{
// get the data chunks that have the offsets to the strings in the data.ovl file, representing each location (most)
DataChunk locationNameOffsetChunk = _dataRef.GetDataChunk(DataOvlReference.DataChunkName.LOCATION_NAME_INDEXES);
// get the offsets
List <ushort> locationOffsets = locationNameOffsetChunk.GetChunkAsUint16List();
_locationNames = new List <string>(locationOffsets.Count + 1);
// I happen to know that the underworld and overworld is [0], so let's add a placeholder
_locationNames.Add("Overworld/Underworld");
// grab each location string
// it isn't the most efficient way, but it gets the job done
foreach (ushort offset in locationOffsets)
{
_locationNames.Add(_dataRef.GetDataChunk(DataChunk.DataFormatType.SimpleString, string.Empty, offset, 20).GetChunkAsString().Replace("_", " "));
}
}
