public OverworldSpriteListRun(IDataModel model, IReadOnlyList <ArrayRunElementSegment> parent, int start, SortedSpan <int> sources = null) : base(start, sources)
{
this.model = model;
this.parent = parent;
var segments = new List <ArrayRunElementSegment> {
new ArrayRunPointerSegment("sprite", "`ucs4x1x2`"),
new ArrayRunElementSegment("length", ElementContentType.Integer, 4),
};
ElementContent = segments;
ElementCount = 1;
Length = ElementLength;
SpriteFormat = new SpriteFormat(4, 1, 1, string.Empty);
if (sources == null || sources.Count == 0)
{
return;
}
// initialize format from parent info
var listOffset = GetOffset <ArrayRunPointerSegment>(parent, pSeg => pSeg.InnerFormat == SharedFormatString);
var widthOffset = GetOffset(parent, seg => seg.Name == "width");
var heightOffset = GetOffset(parent, seg => seg.Name == "height");
var keyOffset = GetOffset(parent, seg => seg.Name == "paletteid");
var elementStart = sources[0] - listOffset;
var width = Math.Max(1, model.ReadMultiByteValue(elementStart + widthOffset, 2));
var height = Math.Max(1, model.ReadMultiByteValue(elementStart + heightOffset, 2));
var tileWidth = (int)Math.Max(1, Math.Ceiling(width / 8.0));
var tileHeight = (int)Math.Max(1, Math.Ceiling(height / 8.0));
var key = model.ReadMultiByteValue(elementStart + keyOffset, 2);
var hint = $"overworld.palettes:id={key:X4}";
var format = $"`ucs4x{width / 8}x{height / 8}|{hint}`";
segments[0] = new ArrayRunPointerSegment("sprite", format);
// calculate the element count
var byteLength = tileWidth * tileHeight * TileSize;
var nextAnchorStart = model.GetNextAnchor(Start + 1).Start;
ElementCount = 0;
Length = 0;
while (Start + Length < nextAnchorStart)
{
if (model[start + Length + 3] != 0x08)
{
break;
}
if (model.ReadMultiByteValue(start + Length + 4, 4) != byteLength)
{
break;
}
ElementCount += 1;
Length += ElementLength;
}
SpriteFormat = new SpriteFormat(4, tileWidth * ElementCount, tileHeight, hint);
ElementNames = Enumerable.Range(0, ElementCount).Select(i => string.Empty).ToList();
}
public OverworldSpriteListRun(IDataModel model, IReadOnlyList <ArrayRunElementSegment> parent, string paletteHint, int runIndex, int start, SortedSpan <int> sources = null) : base(start, sources)
{
this.model = model;
this.parent = parent;
PaletteHint = paletteHint;
RunIndex = runIndex;
var nextStartBuilder = new List <int>();
int parentLength = parent.Sum(seg => seg.Length);
if (parent != null && sources != null && sources.Count > 0)
{
for (int nextSource = sources[0] + parentLength; true; nextSource += parentLength)
{
var nextDest = model.ReadPointer(nextSource);
if (nextDest < 0 || nextDest >= model.Count)
{
break;
}
nextStartBuilder.Add(nextDest);
}
}
var nextStart = nextStartBuilder.ToArray();
var segments = new List <ArrayRunElementSegment> {
new ArrayRunPointerSegment("sprite", "`ucs4x1x2`"),
new ArrayRunElementSegment("length", ElementContentType.Integer, 4),
};
ElementContent = segments;
ElementCount = 1;
Length = ElementLength;
SpriteFormat = new SpriteFormat(4, 1, 1, string.Empty);
if (sources == null || sources.Count == 0)
{
return;
}
// initialize format from parent info
var listOffset = GetOffset <ArrayRunPointerSegment>(parent, pSeg => pSeg.InnerFormat.StartsWith("`osl"));
var widthOffset = GetOffset(parent, seg => seg.Name == "width");
var heightOffset = GetOffset(parent, seg => seg.Name == "height");
var keyOffset = GetOffset(parent, seg => seg.Name == "paletteid");
if (widthOffset == parentLength)
{
widthOffset = -1;
}
if (heightOffset == parentLength)
{
heightOffset = -1;
}
if (keyOffset == parentLength)
{
keyOffset = -1;
}
var elementStart = sources[0] - listOffset;
var width = widthOffset >= 0 ? Math.Max(1, model.ReadMultiByteValue(elementStart + widthOffset, 2)) : 0;
var height = heightOffset >= 0 ? Math.Max(1, model.ReadMultiByteValue(elementStart + heightOffset, 2)) : 0;
// if there was no height/width found, assume that it's square and based on the first element length
var pixelCount = model.ReadMultiByteValue(start + 4, 4) * 2; // number of pixels is twice the number of bytes for all OW sprites
bool adjustDimensions = true;
if (width == 0)
{
width = (int)Math.Sqrt(pixelCount); adjustDimensions = true;
}
if (height == 0)
{
height = width; adjustDimensions = true;
}
var tileWidth = (int)Math.Max(1, Math.Ceiling(width / 8.0));
var tileHeight = (int)Math.Max(1, Math.Ceiling(height / 8.0));
while (adjustDimensions)
{
adjustDimensions = false;
while (tileWidth * tileHeight * 64 > pixelCount)
{
adjustDimensions = true;
tileHeight -= 1;
}
if (tileHeight == 0)
{
break;
}
while (tileWidth * tileHeight * 64 < pixelCount)
{
if (tileWidth > 500)
{
break;
}
adjustDimensions = true;
tileWidth += 1;
}
}
var key = model.ReadMultiByteValue(elementStart + keyOffset, 2);
var hint = $"{HardcodeTablesModel.OverworldPalettes}:id={key:X4}";
if (!string.IsNullOrEmpty(paletteHint))
{
hint = PaletteHint + $"={runIndex:X4}";
}
if (paletteHint != null && paletteHint.Contains("="))
{
hint = PaletteHint + $"{key:X4}";
}
var format = $"`ucs4x{tileWidth}x{tileHeight}|{hint}`";
if (keyOffset == -1 && string.IsNullOrEmpty(paletteHint))
{
format = $"`ucs4x{tileWidth}x{tileHeight}`";
hint = string.Empty;
}
segments[0] = new ArrayRunPointerSegment("sprite", format);
// calculate the element count
var byteLength = tileWidth * tileHeight * TileSize;
var nextAnchorStart = model.GetNextAnchor(Start + 1).Start;
ElementCount = 0;
Length = 0;
while (Start + Length < nextAnchorStart)
{
if (model[start + Length + 3] != 0x08)
{
break;
}
if (model.ReadMultiByteValue(start + Length + 4, 4) != byteLength)
{
break;
}
var nextRun = model.GetNextRun(start + Length);
if (Length > 0 && (start + Length).IsAny(nextStart))
{
break; // metric: if there's a pointer in the parent table that points here, then it's the next list, not this list.
}
ElementCount += 1;
Length += ElementLength;
if (ElementCount == MaxOverworldSprites)
{
break; // overworld sprite lists can only have so many elements
}
}
SpriteFormat = new SpriteFormat(4, tileWidth, tileHeight, hint);
ElementNames = ElementCount.Range().Select(i => string.Empty).ToList();
}
private static List <ArrayRunElementSegment> ParseSegments(string segments, IDataModel model)
{
var list = new List <ArrayRunElementSegment>();
segments = segments.Trim();
while (segments.Length > 0)
{
int nameEnd = 0;
while (nameEnd < segments.Length && char.IsLetterOrDigit(segments[nameEnd]))
{
nameEnd++;
}
var name = segments.Substring(0, nameEnd);
if (name == string.Empty)
{
throw new ArrayRunParseException("expected name, but none was found: " + segments);
}
segments = segments.Substring(nameEnd);
var(format, formatLength, segmentLength) = ExtractSingleFormat(segments, model);
// check to see if a name or length is part of the format
if (format == ElementContentType.Integer && segments.Length > formatLength && segments[formatLength] != ' ')
{
segments = segments.Substring(formatLength);
if (int.TryParse(segments, out var maxValue))
{
throw new NotImplementedException();
}
else
{
var endOfToken = segments.IndexOf(' ');
if (endOfToken == -1)
{
endOfToken = segments.Length;
}
var enumName = segments.Substring(0, endOfToken);
segments = segments.Substring(endOfToken).Trim();
list.Add(new ArrayRunEnumSegment(name, segmentLength, enumName));
}
}
else if (format == ElementContentType.Pointer && formatLength > 2)
{
var pointerSegment = new ArrayRunPointerSegment(name, segments.Substring(1, formatLength - 2));
if (!pointerSegment.IsInnerFormatValid)
{
throw new ArrayRunParseException($"pointer format '{pointerSegment.InnerFormat}' was not understood.");
}
list.Add(pointerSegment);
segments = segments.Substring(formatLength).Trim();
}
else if (format == ElementContentType.BitArray)
{
var sourceName = segments.Substring(BitArray.SharedFormatString.Length, formatLength - BitArray.SharedFormatString.Length);
segments = segments.Substring(formatLength).Trim();
list.Add(new ArrayRunBitArraySegment(name, segmentLength, sourceName));
}
else
{
segments = segments.Substring(formatLength).Trim();
if (format == ElementContentType.Unknown)
{
// default to single byte integer
format = ElementContentType.Integer;
segmentLength = 1;
}
list.Add(new ArrayRunElementSegment(name, format, segmentLength));
}
}
return(list);
}