public float ScanFloat(IniToken token)
{
return(ParseUtility.ParseFloat(GetFloatText(token)));
}
public static Geometry FromFileSystemEntry(FileSystemEntry entry)
{
var geometry = new Geometry();
using (var stream = entry.Open())
using (var reader = new StreamReader(stream))
{
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;
};
while ((line = reader.ReadLine()) != null)
{
line = line.Trim();
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.R = Convert.ToByte(paramList[1]);
color.G = Convert.ToByte(paramList[2]);
color.B = Convert.ToByte(paramList[3]);
color.A = 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.R = Convert.ToByte(paramList[2]);
color.G = Convert.ToByte(paramList[3]);
color.B = Convert.ToByte(paramList[4]);
color.A = Convert.ToByte(paramList[5]);
break;
//this is the textured triangle style
case "tc":
if (paramList.Length != 12)
{
throw new InvalidDataException();
}
style = GeometryStyle.TexturedTri;
color.R = Convert.ToByte(paramList[1]);
color.G = Convert.ToByte(paramList[2]);
color.B = Convert.ToByte(paramList[3]);
color.A = Convert.ToByte(paramList[4]);
//image id used
image = Convert.ToInt32(paramList[5]);
//transformation parameters, to map the geometry above the texture
rotMat.M11 = ParseUtility.ParseFloat(paramList[6]);
rotMat.M12 = ParseUtility.ParseFloat(paramList[7]);
rotMat.M21 = ParseUtility.ParseFloat(paramList[8]);
rotMat.M22 = ParseUtility.ParseFloat(paramList[9]);
translation.X = ParseUtility.ParseFloat(paramList[10]);
translation.Y = ParseUtility.ParseFloat(paramList[11]);
break;
}
break;
//A line
case 'l':
Line2D lin;
lin.V0 = new Vector2(ParseUtility.ParseFloat(paramList[0]), ParseUtility.ParseFloat(paramList[1]));
lin.V1 = new Vector2(ParseUtility.ParseFloat(paramList[2]), ParseUtility.ParseFloat(paramList[3]));
lines.Add(lin);
break;
//A triangle
case 't':
Triangle2D tri;
tri.V0 = new Vector2(ParseUtility.ParseFloat(paramList[0]), ParseUtility.ParseFloat(paramList[1]));
tri.V1 = new Vector2(ParseUtility.ParseFloat(paramList[2]), ParseUtility.ParseFloat(paramList[3]));
tri.V2 = new Vector2(ParseUtility.ParseFloat(paramList[4]), ParseUtility.ParseFloat(paramList[5]));
tris.Add(tri);
break;
}
}
ApplyStyle();
}
geometry.CalculateBoundings();
return(geometry);
}
