public static Track LoadTrack(string trackfile, string trackname)
{
var ret = new Track();
ret.Filename = trackfile;
ret.Name = trackname;
ret.Remount = false;
var addedlines = new Dictionary <int, StandardLine>();
var location = trackfile;
var bytes = File.ReadAllBytes(location);
using (var file =
new MemoryStream(bytes))
{
var br = new BinaryReader(file);
int magic = br.ReadInt32();
if (magic != ('T' | 'R' << 8 | 'K' << 16 | 0xF2 << 24))
{
throw new TrackIO.TrackLoadException("File was read as .trk but it is not valid");
}
byte version = br.ReadByte();
string[] features = ReadString(br).Split(new char[] { ';' }, StringSplitOptions.RemoveEmptyEntries);
if (version != 1)
{
throw new TrackIO.TrackLoadException("Unsupported version");
}
bool redmultipier = false;
bool scenerywidth = false;
bool supports61 = false;
bool songinfo = false;
bool ignorabletrigger = false;
for (int i = 0; i < features.Length; i++)
{
switch (features[i])
{
case TrackFeatures.redmultiplier:
redmultipier = true;
break;
case TrackFeatures.scenerywidth:
scenerywidth = true;
break;
case TrackFeatures.six_one:
supports61 = true;
break;
case TrackFeatures.songinfo:
songinfo = true;
break;
case TrackFeatures.ignorable_trigger:
ignorabletrigger = true;
break;
case TrackFeatures.zerostart:
ret.ZeroStart = true;
break;
case TrackFeatures.remount:
ret.Remount = true;
break;
case TrackFeatures.frictionless:
ret.frictionless = true;
break;
default:
throw new TrackIO.TrackLoadException("Unsupported feature");
}
}
if (supports61)
{
ret.SetVersion(61);
}
else
{
ret.SetVersion(62);
}
if (songinfo)
{
var song = br.ReadString();
try
{
var strings = song.Split(new string[] { "\r\n" }, StringSplitOptions.RemoveEmptyEntries);
var fn = Program.UserDirectory + "Songs" +
Path.DirectorySeparatorChar +
strings[0];
if (File.Exists(fn))
{
if (AudioService.LoadFile(ref fn))
{
ret.Song = new Song(Path.GetFileName(fn), float.Parse(strings[1], Program.Culture));
}
else
{
Program.NonFatalError("An unknown error occured trying to load the song file");
}
}
}
catch
{
// ignored
}
}
ret.StartOffset = new Vector2d(br.ReadDouble(), br.ReadDouble());
var lines = br.ReadInt32();
List <LineTrigger> linetriggers = new List <LineTrigger>();
for (var i = 0; i < lines; i++)
{
GameLine l;
byte ltype = br.ReadByte();
var lt = (LineType)(ltype & 0x1F);//we get 5 bits
var inv = (ltype >> 7) != 0;
var lim = (ltype >> 5) & 0x3;
var ID = -1;
var prvID = -1;
var nxtID = -1;
var multiplier = 1;
var linewidth = 1f;
LineTrigger tr = null;
if (redmultipier)
{
if (lt == LineType.Red)
{
multiplier = br.ReadByte();
}
}
if (lt == LineType.Blue || lt == LineType.Red)
{
if (ignorabletrigger)
{
tr = new LineTrigger();
bool zoomtrigger = br.ReadBoolean();
if (zoomtrigger)
{
tr.ZoomTrigger = true;
var target = br.ReadSingle();
var frames = br.ReadInt16();
tr.ZoomFrames = frames;
tr.ZoomTarget = target;
}
else
{
tr = null;
}
}
ID = br.ReadInt32();
if (lim != 0)
{
prvID = br.ReadInt32(); //ignored
nxtID = br.ReadInt32(); //ignored
}
}
if (lt == LineType.Scenery)
{
if (scenerywidth)
{
float b = br.ReadByte();
linewidth = b / 10f;
}
}
var x1 = br.ReadDouble();
var y1 = br.ReadDouble();
var x2 = br.ReadDouble();
var y2 = br.ReadDouble();
if (tr != null)
{
tr.LineID = ID;
linetriggers.Add(tr);
}
switch (lt)
{
case LineType.Blue:
var bl = new StandardLine(new Vector2d(x1, y1), new Vector2d(x2, y2), inv);
bl.ID = ID;
bl.Extension = (StandardLine.Ext)lim;
l = bl;
break;
case LineType.Red:
var rl = new RedLine(new Vector2d(x1, y1), new Vector2d(x2, y2), inv);
rl.ID = ID;
rl.Extension = (StandardLine.Ext)lim;
if (redmultipier)
{
rl.Multiplier = multiplier;
}
l = rl;
break;
case LineType.Scenery:
l = new SceneryLine(new Vector2d(x1, y1), new Vector2d(x2, y2))
{
Width = linewidth
};
break;
default:
throw new TrackIO.TrackLoadException("Invalid line type at ID " + ID);
}
if (l is StandardLine)
{
if (!addedlines.ContainsKey(l.ID))
{
addedlines[ID] = (StandardLine)l;
ret.AddLine(l);
}
}
else
{
ret.AddLine(l);
}
}
ret.Triggers = TriggerConverter.ConvertTriggers(linetriggers, ret);
if (br.BaseStream.Position != br.BaseStream.Length)
{
var meta = br.ReadInt32();
if (meta == ('M' | 'E' << 8 | 'T' << 16 | 'A' << 24))
{
ParseMetadata(ret, br);
}
else
{
throw new TrackIO.TrackLoadException("Expected metadata tag but got " + meta.ToString("X8"));
}
}
}
return(ret);
}
public static Track LoadTrack(string trackfile)
{
Track ret = new Track();
ret.Filename = trackfile;
track_json trackobj;
using (var file = File.OpenRead(trackfile))
{
try
{
trackobj = JsonSerializer.Deserialize <track_json>(file);
}
catch (Exception ex)
{
throw new TrackIO.TrackLoadException(
"Json parsing error.\n" + ex.Message);
}
}
switch (trackobj.version)
{
case "6.1":
ret.SetVersion(61);
break;
case "6.2":
ret.SetVersion(62);
break;
default:
throw new TrackIO.TrackLoadException(
"Unsupported physics.");
}
ret.Name = trackobj.label;
if (trackobj.startZoom != 0)
{
ret.StartZoom = (float)MathHelper.Clamp(
trackobj.startZoom,
Utils.Constants.MinimumZoom,
Utils.Constants.MaxZoom);
}
ret.YGravity = trackobj.yGravity;
ret.XGravity = trackobj.xGravity;
ret.GravityWellSize = trackobj.gravityWellSize;
ret.BGColorR = trackobj.bgR;
ret.BGColorG = trackobj.bgG;
ret.BGColorB = trackobj.bgB;
ret.LineColorR = trackobj.lineR;
ret.LineColorG = trackobj.lineG;
ret.LineColorB = trackobj.lineB;
ret.ZeroStart = trackobj.zeroStart;
if (trackobj.startPosition != null)
{
ret.StartOffset = new Vector2d(
trackobj.startPosition.x, trackobj.startPosition.y);
}
if (!string.IsNullOrEmpty(trackobj.linesArrayCompressed))
{
var json2 = LZString.decompressBase64(trackobj.linesArrayCompressed);
trackobj.linesArray = JsonSerializer.Deserialize <object[][]>(json2);
trackobj.linesArrayCompressed = null;
}
if (trackobj.linesArray?.Length > 0)
{
ReadLinesArray(ret, trackobj.linesArray);
}
else if (trackobj.lines != null)
{
foreach (var line in trackobj.lines)
{
AddLine(ret, line);
}
}
if (trackobj.triggers != null)
{
List <LineTrigger> linetriggers = new List <LineTrigger>();
foreach (var trigger in trackobj.triggers)
{
if (ret.LineLookup.TryGetValue(trigger.ID, out GameLine line))
{
if (line is StandardLine stl)
{
if (trigger.zoom)
{
linetriggers.Add(new LineTrigger()
{
ZoomTrigger = trigger.zoom,
ZoomTarget = (float)MathHelper.Clamp(
trigger.target,
Utils.Constants.MinimumZoom,
Utils.Constants.MaxZoom),
ZoomFrames = trigger.frames,
LineID = trigger.ID
});
}
}
}
}
ret.Triggers = TriggerConverter.ConvertTriggers(linetriggers, ret);
}
if (trackobj.gameTriggers != null)
{
foreach (var t in trackobj.gameTriggers)
{
if (t.start < 1 || t.end < 1 || t.end < t.start)
{
throw new TrackIO.TrackLoadException(
"Trigger timing was outside of range");
}
TriggerType ttype;
try
{
ttype = (TriggerType)t.triggerType;
}
catch
{
throw new TrackIO.TrackLoadException(
"Unsupported trigger type " + t.triggerType);
}
switch (ttype)
{
case TriggerType.Zoom:
ret.Triggers.Add(new GameTrigger()
{
Start = t.start,
End = t.end,
TriggerType = ttype,
ZoomTarget = t.zoomTarget,
});
break;
case TriggerType.BGChange:
ret.Triggers.Add(new GameTrigger()
{
Start = t.start,
End = t.end,
TriggerType = ttype,
backgroundRed = t.backgroundred,
backgroundGreen = t.backgroundgreen,
backgroundBlue = t.backgroundblue,
});
break;
case TriggerType.LineColor:
ret.Triggers.Add(new GameTrigger()
{
Start = t.start,
End = t.end,
TriggerType = ttype,
lineRed = t.lineRed,
lineGreen = t.lineGreen,
lineBlue = t.lineBlue,
});
break;
}
}
}
return(ret);
}
