public static Texture AcquireTexture(string filename)
{
if (textures.ContainsKey(filename))
return textures[filename];
Texture texture = new Texture(filename);
textures.Add(filename, texture);
return texture;
}
public Material(string filename)
{
useDefault();
pathFileName = filename;
FileStream fs = new FileStream(filename, FileMode.Open, FileAccess.Read);
StreamReader sr = new StreamReader(fs);
string sLine;
char[] seperators = new char[] { ' ', '/' };
string[] s;
float[] fTemp;
string absolutePath = fs.Name;
char[] sep = new char[] { '\\' };
string[] splitAbsolutePath = absolutePath.Split(sep);
for (int i = 0; i < splitAbsolutePath.Length - 1; i++)
relativePath += splitAbsolutePath[i] + "\\";
int ic = sr.Read();
uint lineNumber = 1;
while (ic != -1)
{
char c = (char)ic;
if(c == 'n') //New Material
{
sLine = sr.ReadLine();
s = sLine.Split(seperators, StringSplitOptions.RemoveEmptyEntries);
matName = s[1];
}
else if (c == 'N')
{
int iNext = sr.Read();
if (iNext == 's')
{
sLine = sr.ReadLine();
s = sLine.Split(seperators, StringSplitOptions.RemoveEmptyEntries);
fTemp = new float[s.Length];
float.TryParse(s[0], out fTemp[0]);
setShine(fTemp[0]);
}
else
{
sLine = sr.ReadLine();
}
}
else if (c == 'i')
{
sLine = sr.ReadLine();
Console.WriteLine("WARNING: Material File " + filename + " Illumination Parameter Not Supported on Line " + lineNumber);
}
else if (c == 'T')
{
sLine = sr.ReadLine();
Console.WriteLine("WARNING: Material File " + filename + " Transmission Filter Parameter Not Supported on Line " + lineNumber);
}
else if (c == 'K')
{
int iNext = sr.Read();
if (iNext == 'd')
{
sLine = sr.ReadLine();
s = sLine.Split(seperators, StringSplitOptions.RemoveEmptyEntries);
fTemp = new float[s.Length];
float.TryParse(s[0], out fTemp[0]);
float.TryParse(s[1], out fTemp[1]);
float.TryParse(s[2], out fTemp[2]);
if (s.Length == 4)
float.TryParse(s[3], out fTemp[3]);
setDiffuse(fTemp[0], fTemp[1], fTemp[2], fTemp.Length == 4 ? fTemp[3] : 1.0f);
}
else if (iNext == 'a')
{
sLine = sr.ReadLine();
s = sLine.Split(seperators, StringSplitOptions.RemoveEmptyEntries);
fTemp = new float[s.Length];
float.TryParse(s[0], out fTemp[0]);
float.TryParse(s[1], out fTemp[1]);
float.TryParse(s[2], out fTemp[2]);
if (s.Length == 4)
float.TryParse(s[3], out fTemp[3]);
setAmbient(fTemp[0], fTemp[1], fTemp[2], fTemp.Length == 4 ? fTemp[3] : 1.0f);
}
else if (iNext == 's')
{
sLine = sr.ReadLine();
s = sLine.Split(seperators, StringSplitOptions.RemoveEmptyEntries);
fTemp = new float[s.Length];
float.TryParse(s[0], out fTemp[0]);
float.TryParse(s[1], out fTemp[1]);
float.TryParse(s[2], out fTemp[2]);
if (s.Length == 4)
float.TryParse(s[3], out fTemp[3]);
setSpecular(fTemp[0], fTemp[1], fTemp[2], fTemp.Length == 4 ? fTemp[3] : 1.0f);
}
}
else if (c == 'm') //Texture file
{
sr.Read(); //'a'
sr.Read(); //'p'
sr.Read(); //'_'
sr.Read(); //'K'
int iNext = sr.Read();
if (iNext == 'd' || iNext == 'a' || iNext == 's')
{
Console.WriteLine("WARNING: Material File " + filename + " Texture and Material Parameter Not Supported on Line " + lineNumber);
sr.Read();
string texFileName = sr.ReadLine();
texture = Texture.AcquireTexture(relativePath + texFileName);
}
}
else if (c != '\n')
{
sLine = sr.ReadLine();
}
lineNumber++;
ic = sr.Read();
}
sr.Close();
fs.Close();
}
public void setTexture(Texture tex)
{
texture = tex;
}
