// Reads the hashes and related strings
private void ReadBuildHashes(BinaryReader reader)
{
var buildHashes = new Dictionary <int, SpriteBaseName>();
var numHashes = reader.ReadInt32();
Utilities.LogToDump($"\n<Hashtable {numHashes}>", Logger);
for (var i = 0; i < numHashes; i++)
{
var hash = reader.ReadInt32();
var str = reader.ReadPString();
Utilities.LogToDump($" {hash} -> \"{str}\"", Logger);
buildHashes[hash] = new SpriteBaseName(str);
}
BuildHashes = buildHashes;
}
private void PackBuild(TexturePacker texture)
{
BuildData = new Build();
BuildData.Version = 10; // magic number
SetSymbolsAndFrames(texture.SpriteAtlas);
BuildData.Name = scml.GetElementsByTagName("entity")[0].Attributes["name"].Value;
var histogram = texture.GetHistogram();
var hashTable = new Dictionary <SpriteBaseName, int>();
BuildData.Symbols = new List <Symbol>();
var symbolIndex = -1;
SpriteBaseName lastName = null;
foreach (var sprite in texture.SpriteAtlas)
{
// Only add each unique symbol once
if (lastName != sprite.BaseName)
{
var symbol = new Symbol();
// The hash table caches a KleiHash translation of all sprites.
// It may be unnecessary but the original had it, and I don't know if the performance impact is
// small enough to remove it.
if (!hashTable.ContainsKey(sprite.BaseName))
{
hashTable[sprite.BaseName] = sprite.BaseName.KleiHashed;
}
symbol.Hash = hashTable[sprite.BaseName];
symbol.Path = symbol.Hash;
symbol.Color = 0; // no Klei files use color other than 0 so fair assumption is it can be 0
// only check in decompile for flag checks flag = 8 for a layered anim (which we won't do)
// so should be safe to leave flags = 0
// have seen some Klei files in which flags = 1 for some symbols but can't determine what that does
symbol.Flags = 0;
symbol.FrameCount = histogram[sprite.BaseName];
symbol.Frames = new List <Frame>();
BuildData.Symbols.Add(symbol);
symbolIndex++;
lastName = sprite.BaseName;
}
var frame = new Frame();
frame.SourceFrameNum = sprite.SpriteName.Index;
// duration is always 1 because the frames for a symbol always are numbered incrementing by 1
// (or at least that's why I think it's always 1 in the examples I looked at)
frame.Duration = 1;
// this value as read from the file is unused by Klei code and all example files have it set to 0 for all symbols
frame.BuildImageIndex = 0;
frame.X1 = (float)sprite.X / texture.SpriteSheet.Width;
frame.X2 = (float)(sprite.X + sprite.Width) / texture.SpriteSheet.Width;
frame.Y1 = (float)sprite.Y / texture.SpriteSheet.Height;
frame.Y2 = (float)(sprite.Y + sprite.Height) / texture.SpriteSheet.Height;
// do not set frame.time since it was a calculated property and not actually used in kbild
frame.PivotWidth = sprite.Width * 2;
frame.PivotHeight = sprite.Height * 2;
// Find the appropriate pivot from the scml
var key = $"{sprite.BaseName}_{frame.SourceFrameNum}";
if (!projectSprites.ContainsKey(sprite.SpriteName))
{
continue;
}
var scmlnode = projectSprites[sprite.SpriteName];
frame.PivotX = -(float.Parse(scmlnode.Attributes["pivot_x"].Value) - 0.5f) * frame.PivotWidth;
frame.PivotY = (float.Parse(scmlnode.Attributes["pivot_y"].Value) - 0.5f) * frame.PivotHeight;
BuildData.Symbols[symbolIndex].Frames.Add(frame);
}
// Finally, flip the key/values to get the build hash table
BuildHashes = new Dictionary <int, SpriteBaseName>();
foreach (var entry in hashTable)
{
BuildHashes[entry.Value] = entry.Key;
}
BuildBuildTable(texture.SpriteSheet.Width, texture.SpriteSheet.Height);
}
