public static AptFile FromFileSystemEntry(FileSystemEntry entry)
{
using (var stream = entry.Open())
using (var reader = new BinaryReader(stream, Encoding.ASCII, true))
{
//check if this is a valid apt file
var magic = reader.ReadFixedLengthString(8);
if (magic != "Apt Data")
{
throw new InvalidDataException();
}
//load the corresponding const entry
var constPath = Path.ChangeExtension(entry.FilePath, ".const");
var constFile = ConstantData.FromFileSystemEntry(entry.FileSystem.GetFile(constPath));
var aptName = Path.GetFileNameWithoutExtension(entry.FilePath);
var apt = new AptFile(constFile, entry.FileSystem, aptName);
apt.Parse(reader);
return(apt);
}
}
public static Geometry FromFileSystemEntry(AptFile container, FileSystemEntry entry)
{
using var stream = entry.Open();
using var reader = new StreamReader(stream);
return(Parse(container, reader));
}
public static Geometry Parse(AptFile container, TextReader reader)
{
var geometry = new Geometry(container);
string line;
int image = 0;
float thickness = 0;
Matrix2x2 rotMat = new Matrix2x2();
Vector2 translation = new Vector2();
ColorRgba color = new ColorRgba(0, 0, 0, 0);
GeometryStyle style = GeometryStyle.Undefined;
var tris = new List <Triangle2D>();
var lines = new List <Line2D>();
Action ApplyStyle = () =>
{
switch (style)
{
//no data parsed yet
case GeometryStyle.Undefined:
break;
case GeometryStyle.TexturedTri:
geometry.Entries.Add(new GeometryTexturedTriangles(new List <Triangle2D>(tris), color, image, rotMat, translation));
tris.Clear();
break;
case GeometryStyle.SolidTri:
geometry.Entries.Add(new GeometrySolidTriangles(new List <Triangle2D>(tris), color));
tris.Clear();
break;
case GeometryStyle.Line:
geometry.Entries.Add(new GeometryLines(new List <Line2D>(lines), color, thickness));
lines.Clear();
break;
}
style = GeometryStyle.Undefined;
};
var rawText = new StringBuilder();
while ((line = reader.ReadLine()) != null)
{
line = line.Trim();
rawText.AppendLine(line);
var lineMode = line.First();
line = line.TrimStart('c', 's', 'l', 't');
var paramList = line.Split(':');
//trim each entry of the param list
for (var i = 0; i < paramList.Length; ++i)
{
paramList[i] = paramList[i].Trim();
}
switch (lineMode)
{
//Clear - Finish the last geometry
case 'c':
ApplyStyle();
break;
//Style - Header for the following data
case 's':
//Check that we have atleast 1 param
if (paramList.Length < 1)
{
throw new InvalidDataException();
}
//Check which style we are using
switch (paramList.First())
{
//this is the solid triangle style
case "s":
if (paramList.Length != 5)
{
throw new InvalidDataException();
}
style = GeometryStyle.SolidTri;
color = new ColorRgba(
Convert.ToByte(paramList[1]),
Convert.ToByte(paramList[2]),
Convert.ToByte(paramList[3]),
Convert.ToByte(paramList[4]));
break;
//this is the line style
case "l":
if (paramList.Length != 6)
{
throw new InvalidDataException();
}
style = GeometryStyle.Line;
thickness = ParseUtility.ParseFloat(paramList[1]);
color = new ColorRgba(
Convert.ToByte(paramList[2]),
Convert.ToByte(paramList[3]),
Convert.ToByte(paramList[4]),
Convert.ToByte(paramList[5]));
break;
//this is the textured triangle style
case "tc":
if (paramList.Length != 12)
{
throw new InvalidDataException();
}
style = GeometryStyle.TexturedTri;
color = new ColorRgba(
Convert.ToByte(paramList[1]),
Convert.ToByte(paramList[2]),
Convert.ToByte(paramList[3]),
Convert.ToByte(paramList[4]));
//image id used
image = Convert.ToInt32(paramList[5]);
//transformation parameters, to map the geometry above the texture
rotMat = new Matrix2x2(
ParseUtility.ParseFloat(paramList[6]),
ParseUtility.ParseFloat(paramList[7]),
ParseUtility.ParseFloat(paramList[8]),
ParseUtility.ParseFloat(paramList[9]));
translation.X = ParseUtility.ParseFloat(paramList[10]);
translation.Y = ParseUtility.ParseFloat(paramList[11]);
break;
}
break;
//A line
case 'l':
lines.Add(new Line2D(
new Vector2(ParseUtility.ParseFloat(paramList[0]), ParseUtility.ParseFloat(paramList[1])),
new Vector2(ParseUtility.ParseFloat(paramList[2]), ParseUtility.ParseFloat(paramList[3]))));
break;
//A triangle
case 't':
tris.Add(new Triangle2D(
new Vector2(ParseUtility.ParseFloat(paramList[0]), ParseUtility.ParseFloat(paramList[1])),
new Vector2(ParseUtility.ParseFloat(paramList[2]), ParseUtility.ParseFloat(paramList[3])),
new Vector2(ParseUtility.ParseFloat(paramList[4]), ParseUtility.ParseFloat(paramList[5]))));
break;
}
}
ApplyStyle();
geometry.RawText = rawText.ToString();
geometry.CalculateBoundings();
return(geometry);
}
private Geometry(AptFile container)
{
Entries = new List <IGeometryEntry>();
Container = container;
}
