public override IDataFormat CreateDataFormat(IDataModel data, int index)
{
var offsets = ConvertByteOffsetToArrayOffset(index);
var currentSegment = ElementContent[offsets.SegmentIndex];
if (currentSegment.Type == ElementContentType.PCS)
{
if (currentCachedStartIndex != offsets.SegmentStart || currentCachedIndex > offsets.SegmentOffset)
{
currentCachedStartIndex = offsets.SegmentStart;
currentCachedIndex = offsets.SegmentOffset;
cachedCurrentString = PCSString.Convert(data, offsets.SegmentStart, currentSegment.Length);
}
return(PCSRun.CreatePCSFormat(data, offsets.SegmentStart, index, cachedCurrentString));
}
var position = index - offsets.SegmentStart;
if (currentSegment.Type == ElementContentType.Integer)
{
if (currentSegment is ArrayRunEnumSegment enumSegment)
{
var value = enumSegment.ToText(data, index);
return(new IntegerEnum(offsets.SegmentStart, position, value, currentSegment.Length));
}
else
{
var value = ArrayRunElementSegment.ToInteger(data, offsets.SegmentStart, currentSegment.Length);
return(new Integer(offsets.SegmentStart, position, value, currentSegment.Length));
}
}
if (currentSegment.Type == ElementContentType.Pointer)
{
var destination = data.ReadPointer(offsets.SegmentStart);
var destinationName = data.GetAnchorFromAddress(offsets.SegmentStart, destination);
return(new Pointer(offsets.SegmentStart, position, destination, destinationName));
}
if (currentSegment.Type == ElementContentType.BitArray)
{
return(new BitArray(offsets.SegmentStart, position, currentSegment.Length));
}
throw new NotImplementedException();
}
public TilemapTableRun(IDataModel model, string anchorName, ArrayRunElementSegment segment, TilemapMargins margins, int start, SortedSpan <int> sources = null) : base(start, sources)
{
this.model = model;
TilemapAnchor = anchorName;
Segment = segment;
Margins = margins;
var tilemapAddress = model.GetAddressFromAnchor(new NoDataChangeDeltaModel(), -1, anchorName);
var tilemap = model.GetNextRun(tilemapAddress) as ITilemapRun;
if (tilemap != null)
{
var height = tilemap.SpriteFormat.TileHeight + margins.Top + margins.Bottom;
var width = tilemap.SpriteFormat.TileWidth + margins.Left + margins.Right;
ElementCount = height * margins.LengthMultiplier;
ElementLength = width * Segment.Length;
ElementContent = width.Range().Select(i => segment).ToArray();
}
Length = ElementCount * ElementLength;
FormatString = $"[{segment.SerializeFormat}]{anchorName}{Margins}";
}
private static bool DataMatchesSegmentFormat(IDataModel owner, int start, ArrayRunElementSegment segment, FormatMatchFlags flags, IFormattedRun nextAnchor)
{
if (start + segment.Length > nextAnchor.Start && nextAnchor is ArrayRun)
{
return(false); // don't blap over existing arrays
}
switch (segment.Type)
{
case ElementContentType.PCS:
int readLength = PCSString.ReadString(owner, start, true, segment.Length);
if (readLength < 2)
{
return(false);
}
if (readLength > segment.Length)
{
return(false);
}
if (Enumerable.Range(start, segment.Length).All(i => owner[i] == 0xFF))
{
return(false);
}
// if we end with a space, and the next one starts with a space, we probably have the data width wrong.
// We might be the start of a different data segment that is no longer pointed to. (Example: Vega/pokenames)
// only do this check if the current element seems useful
var isBlank = Enumerable.Range(start, segment.Length).All(i => owner[i] == 0x00 || owner[i] == 0xFF);
if (!isBlank && flags.HasFlag(FormatMatchFlags.IsSingleSegment) && start % 4 == 0 && owner[start + segment.Length - 1] == 0x00 && owner[start + segment.Length] == 0x00)
{
// if the next one starts on a 4-byte boundary, then we probably just skipped a few bytes between different data types, and _this_ section is still part of the _last_ run (example, Emerald Ability names)
// if the next one doesn't start on a 4-byte boundary, then we probably have the length wrong
var nextWordStart = (start + segment.Length + 3) / 4 * 4;
if (Enumerable.Range(start + segment.Length, nextWordStart - start - segment.Length).Any(i => owner[i] != 0x00) || owner[nextWordStart] == 0x00)
{
return(false);
}
}
// require that the overall thing still ends with 'FF' or '00' to avoid finding text of the wrong width.
// the width check is less important if we have more complex data, so relax the condition (example: Clover)
// the width check is less important if we're already known to be in a long run (example: Gaia moves)
var lastByteInText = owner[start + segment.Length - 1];
var lastByteIsReasonablEnd = lastByteInText == 0x00 || lastByteInText == 0xFF;
if (!flags.HasFlag(FormatMatchFlags.AllowJunkAfterText) && !lastByteIsReasonablEnd && flags.HasFlag(FormatMatchFlags.IsSingleSegment))
{
return(false);
}
return(true);
case ElementContentType.Integer:
if (segment is ArrayRunEnumSegment enumSegment)
{
return(owner.ReadMultiByteValue(start, segment.Length) < enumSegment.GetOptions(owner).Count);
}
else
{
return(true);
}
case ElementContentType.Pointer:
var destination = owner.ReadPointer(start);
if (destination == Pointer.NULL)
{
return(true);
}
if (0 > destination || destination > owner.Count)
{
return(false);
}
if (segment is ArrayRunPointerSegment pointerSegment)
{
if (!pointerSegment.DestinationDataMatchesPointerFormat(owner, new NoDataChangeDeltaModel(), destination))
{
return(false);
}
}
return(true);
case ElementContentType.BitArray:
var bitArraySegment = (ArrayRunBitArraySegment)segment;
var bits = bitArraySegment.GetOptions(owner).Count;
bits %= 8;
if (bits == 0)
{
return(true);
}
var finalByte = owner[start + bitArraySegment.Length - 1];
finalByte >>= bits;
return(finalByte == 0); // all the unneeded bits should be set to zero
default:
throw new NotImplementedException();
}
}