/// <summary>
/// Tries to parse a key value line.
/// </summary>
/// <param name="line">The line (e.g. '"editorversion" "400"').</param>
/// <param name="key">The key that was found.</param>
/// <param name="value">The value that was found.</param>
/// <returns>True if successful else false.</returns>
private bool TryParsekeyValue(string line, out string key, out object value)
{
key = "";
value = null;
if (!line.Contains('"'))
{
return(false);
}
int idx = line.IndexOf('"', 1);
key = line.Substring(1, idx - 1);
string rawvalue = line.Substring(idx + 3, line.Length - idx - 4);
if (rawvalue.Length == 0)
{
return(false);
}
int vi;
float vf;
// detect plane definition.
if (rawvalue[0] == '(')
{
string[] values = rawvalue.Replace("(", "").Replace(")", "").Split(' ');
VmfVector3 p1 = new VmfVector3(float.Parse(values[0], CultureInfo.InvariantCulture), float.Parse(values[1], CultureInfo.InvariantCulture), float.Parse(values[2], CultureInfo.InvariantCulture));
VmfVector3 p2 = new VmfVector3(float.Parse(values[3], CultureInfo.InvariantCulture), float.Parse(values[4], CultureInfo.InvariantCulture), float.Parse(values[5], CultureInfo.InvariantCulture));
VmfVector3 p3 = new VmfVector3(float.Parse(values[6], CultureInfo.InvariantCulture), float.Parse(values[7], CultureInfo.InvariantCulture), float.Parse(values[8], CultureInfo.InvariantCulture));
value = new VmfPlane(p1, p2, p3);
return(true);
}
// detect uv definition.
else if (rawvalue[0] == '[')
{
string[] values = rawvalue.Replace("[", "").Replace("]", "").Split(' ');
value = new VmfAxis(new VmfVector3(float.Parse(values[0], CultureInfo.InvariantCulture), float.Parse(values[1], CultureInfo.InvariantCulture), float.Parse(values[2], CultureInfo.InvariantCulture)), float.Parse(values[3], CultureInfo.InvariantCulture), float.Parse(values[4], CultureInfo.InvariantCulture));
return(true);
}
// detect floating point value.
else if (rawvalue.Contains('.') && float.TryParse(rawvalue, out vf))
{
value = vf;
return(true);
}
// detect integer value.
else if (Int32.TryParse(rawvalue, out vi))
{
value = vi;
return(true);
}
// probably a string value.
else
{
value = rawvalue;
return(true);
}
}
// shoutouts to Aleksi Juvani for your vmf importer giving me a clue on why my textures were misaligned.
// had to add the world space position of the brush to the calculations! https://github.com/aleksijuvani
private static void CalculateTextureCoordinates(PrimitiveBrush pr, Polygon polygon, int textureWidth, int textureHeight, VmfAxis UAxis, VmfAxis VAxis)
{
UAxis.Translation = UAxis.Translation % textureWidth;
VAxis.Translation = VAxis.Translation % textureHeight;
if (UAxis.Translation < -textureWidth / 2f)
{
UAxis.Translation += textureWidth;
}
if (VAxis.Translation < -textureHeight / 2f)
{
VAxis.Translation += textureHeight;
}
// calculate texture coordinates.
for (int i = 0; i < polygon.Vertices.Length; i++)
{
var vertex = pr.transform.position + polygon.Vertices[i].Position;
Vector3 uaxis = new Vector3(UAxis.Vector.X, UAxis.Vector.Z, UAxis.Vector.Y);
Vector3 vaxis = new Vector3(VAxis.Vector.X, VAxis.Vector.Z, VAxis.Vector.Y);
var u = Vector3.Dot(vertex, uaxis) / (textureWidth * (UAxis.Scale * inchesInMeters)) + UAxis.Translation / textureWidth;
var v = Vector3.Dot(vertex, vaxis) / (textureHeight * (VAxis.Scale * inchesInMeters)) + VAxis.Translation / textureHeight;
polygon.Vertices[i].UV.x = u;
polygon.Vertices[i].UV.y = -v;
}
}