import java.io.*;

public class parameters
{
  float VRP_x, VRP_y, VRP_z, VPN_x, VPN_y, VPN_z, VUP_x, VUP_y, VUP_z, view_angle;
  int img_pixels_x, img_pixels_y, img_dim_x, img_dim_y;
  String splat_method, strip_integral;
  String volume_filename;
  String interp_kernel;
  float interp_coeff_B, interp_coeff_C;
  int smooth_interp_code;
  float smooth_interp_coeff;
  String gradient_kernel;
  float gradient_coeff_B, gradient_coeff_C;
  int smooth_deriv_code;
  float smooth_deriv_coeff;
  String deriv_method;
  String normal_method;
  String isovalue, num_runs, floating_splat;
  float ray_stepsize;
  float light_pos_x, light_pos_y, light_pos_z;
  float light_col_r, light_col_g, light_col_b;
  float ambient_col_r, ambient_col_g, ambient_col_b;
  float diffuse_coeff, ambient_coeff, specular_coeff;
  int specular_exp;
  float material_col_r, material_col_g, material_col_b;
  String intersection_image, gradient_vol;

  public void ReadFile() throws IOException
    {
      DataInput s = new DataInputStream(new FileInputStream("params"));
      char dummy = '\0';
      String line, temp;

      // VRP
      line = s.readLine(); line = bypass_label(line);
      temp = line.substring(0,line.indexOf(' '));
      line = line.substring(line.indexOf(' ') + 1);
      VRP_x = Float.valueOf(temp).floatValue();
      temp = line.substring(0,line.indexOf(' '));
      line = line.substring(line.indexOf(' ') + 1);
      VRP_y = Float.valueOf(temp).floatValue();
      VRP_z = Float.valueOf(line).floatValue();


      // VPN
      line = s.readLine(); line = bypass_label(line);
      temp = line.substring(0,line.indexOf(' '));
      line = line.substring(line.indexOf(' ') + 1);
      VPN_x = Float.valueOf(temp).floatValue();
      temp = line.substring(0,line.indexOf(' '));
      line = line.substring(line.indexOf(' ') + 1);
      VPN_y = Float.valueOf(temp).floatValue();
      VPN_z = Float.valueOf(line).floatValue();

      // VUP
      line = s.readLine(); line = bypass_label(line);
      temp = line.substring(0,line.indexOf(' '));
      line = line.substring(line.indexOf(' ') + 1);
      VUP_x = Float.valueOf(temp).floatValue();
      temp = line.substring(0,line.indexOf(' '));
      line = line.substring(line.indexOf(' ') + 1);
      VUP_y = Float.valueOf(temp).floatValue();
      VUP_z = Float.valueOf(line).floatValue();

      // view angle

      line = s.readLine(); line = bypass_label(line);
      view_angle = Float.valueOf(line).floatValue();

      // image pixels

      line = s.readLine(); line = bypass_label(line);
      temp = line.substring(0,line.indexOf(' '));
      line = line.substring(line.indexOf(' ') + 1);
      img_pixels_x = Integer.valueOf(temp).intValue();
      img_pixels_y = Integer.valueOf(line).intValue();

      // Image dimensions

      line = s.readLine(); line = bypass_label(line);
      temp = line.substring(0,line.indexOf(' '));
      line = line.substring(line.indexOf(' ') + 1);
      img_dim_x = Integer.valueOf(temp).intValue();
      img_dim_y = Integer.valueOf(line).intValue();

      // Splat method and strip integral (these are kept as is)
      
      splat_method = s.readLine();
      strip_integral = s.readLine();

      // volume filename, interp kernel

      line = s.readLine(); volume_filename = bypass_label(line);
      line = s.readLine(); interp_kernel = bypass_label(line);

      // Interp. B & C

      line = s.readLine(); line = bypass_label(line);
      interp_coeff_B = Float.valueOf(line).floatValue();
      line = s.readLine(); line = bypass_label(line);
      interp_coeff_C = Float.valueOf(line).floatValue();

      // Smooth interp code & coeff.
      line = s.readLine(); line = bypass_label(line);
      smooth_interp_code = Integer.valueOf(line).intValue();
      line = s.readLine(); line = bypass_label(line);
      smooth_interp_coeff = Float.valueOf(line).floatValue();

      // Gradient Kernel & coeffs

      line = s.readLine(); line = bypass_label(line);
      gradient_kernel = line;
      line = s.readLine(); line = bypass_label(line);
      gradient_coeff_B = Float.valueOf(line).floatValue();
      line = s.readLine(); line = bypass_label(line);
      gradient_coeff_C = Float.valueOf(line).floatValue();

      // smooth derivative coeff. and code

      line = s.readLine(); line = bypass_label(line);
      smooth_deriv_code = Integer.valueOf(line).intValue();
      line = s.readLine(); line = bypass_label(line);
      smooth_deriv_coeff = Float.valueOf(line).floatValue();

      // derivative method, normal method

      deriv_method = s.readLine();
      line = s.readLine(); line = bypass_label(line);
      normal_method = line;

      // a few unused ones
      isovalue = s.readLine();
      num_runs = s.readLine();
      floating_splat = s.readLine();

      // Rendering options
      line = s.readLine(); line = bypass_label(line);
      ray_stepsize = Float.valueOf(line).floatValue();

      line = s.readLine(); line = bypass_label(line);
      temp = line.substring(0,line.indexOf(' '));
      line = line.substring(line.indexOf(' ') + 1);
      light_pos_x = Float.valueOf(temp).floatValue();
      temp = line.substring(0,line.indexOf(' '));
      line = line.substring(line.indexOf(' ') + 1);
      light_pos_y = Float.valueOf(temp).floatValue();
      light_pos_z = Float.valueOf(line).floatValue();

      line = s.readLine(); line = bypass_label(line);
      temp = line.substring(0,line.indexOf(' '));
      line = line.substring(line.indexOf(' ') + 1);
      light_col_r = Float.valueOf(temp).floatValue();
      temp = line.substring(0,line.indexOf(' '));
      line = line.substring(line.indexOf(' ') + 1);
      light_col_g = Float.valueOf(temp).floatValue();
      light_col_b = Float.valueOf(line).floatValue();

      line = s.readLine(); line = bypass_label(line);
      temp = line.substring(0,line.indexOf(' '));
      line = line.substring(line.indexOf(' ') + 1);
      ambient_col_r = Float.valueOf(temp).floatValue();
      temp = line.substring(0,line.indexOf(' '));
      line = line.substring(line.indexOf(' ') + 1);
      ambient_col_g = Float.valueOf(temp).floatValue();
      ambient_col_b = Float.valueOf(line).floatValue();

      line = s.readLine(); line = bypass_label(line);
      diffuse_coeff = Float.valueOf(line).floatValue();

      line = s.readLine(); line = bypass_label(line);
      ambient_coeff = Float.valueOf(line).floatValue();

      line = s.readLine(); line = bypass_label(line);
      specular_coeff = Float.valueOf(line).floatValue();

      line = s.readLine(); line = bypass_label(line);
      specular_exp = Integer.valueOf(line).intValue();

      line = s.readLine(); line = bypass_label(line);
      temp = line.substring(0,line.indexOf(' '));
      line = line.substring(line.indexOf(' ') + 1);
      material_col_r = Float.valueOf(temp).floatValue();
      temp = line.substring(0,line.indexOf(' '));
      line = line.substring(line.indexOf(' ') + 1);
      material_col_g = Float.valueOf(temp).floatValue();
      material_col_b = Float.valueOf(line).floatValue();

      line = s.readLine(); line = bypass_label(line);
      intersection_image = line;

      line = s.readLine(); line = bypass_label(line);
      gradient_vol = line;
    }
  
  public void WriteFile() throws IOException
    {
      DataOutput s = new DataOutputStream(new FileOutputStream("params"));
      s.writeBytes("VRP : "+new Float(VRP_x).toString()+" "+new Float(VRP_y).toString()+" "+new Float(VRP_z).toString()+"\n");
      s.writeBytes("VPN : "+new Float(VPN_x).toString()+" "+new Float(VPN_y).toString()+" "+new Float(VPN_z).toString()+"\n");
      s.writeBytes("VUP : "+new Float(VUP_x).toString()+" "+new Float(VUP_y).toString()+" "+new Float(VUP_z).toString()+"\n");
      s.writeBytes("view angle : "+new Float(view_angle).toString() + "\n");
      s.writeBytes("image pixels : "+new Integer(img_pixels_x).toString()+" "+new Integer(img_pixels_y).toString()+"\n");
      s.writeBytes("image dimensions : "+new Integer(img_dim_x).toString()+" "+new Integer(img_dim_y).toString()+"\n");
      s.writeBytes(splat_method + "\n");      
      s.writeBytes(strip_integral + "\n");
      s.writeBytes("volume file : " + volume_filename + "\n");
      s.writeBytes("interpolation kernel : " + interp_kernel + "\n");
      s.writeBytes("interpolation kernel coefficient B : " + new Float(interp_coeff_B).toString()+"\n");
      s.writeBytes("interpolation kernel coefficient C : " + new Float(interp_coeff_C).toString()+"\n");
      s.writeBytes("smooth interpolation filter code : " + new Integer(smooth_interp_code).toString()+"\n");
      s.writeBytes("smooth interpolation filter coefficient : " + new Float(smooth_interp_coeff).toString()+"\n");
      s.writeBytes("gradient kernel : " + gradient_kernel + "\n");
      s.writeBytes("gradient kernel coefficient B : " + new Float(gradient_coeff_B).toString()+"\n");
      s.writeBytes("gradient kernel coefficient C : " + new Float(gradient_coeff_C).toString()+"\n");
      s.writeBytes("smooth derivative filter code : " + new Integer(smooth_deriv_code).toString()+"\n");
      s.writeBytes("smooth derivative filter coefficient : " + new Float(smooth_deriv_coeff).toString()+"\n");
      s.writeBytes(deriv_method + "\n");
      s.writeBytes("normal estimation method : " + normal_method + "\n");
      s.writeBytes(isovalue + "\n" + num_runs + "\n" + floating_splat + "\n");
      s.writeBytes("ray step size : " + new Float(ray_stepsize).toString()+"\n");
      s.writeBytes("light source position : "+new Float(light_pos_x).toString()+" "+
		   new Float(light_pos_y).toString()+" "+new Float(light_pos_z).toString()+"\n");
      s.writeBytes("light source color : "+new Float(light_col_r).toString()+" "+
		   new Float(light_col_g).toString()+" "+new Float(light_col_g).toString()+"\n");
      s.writeBytes("ambient color : "+new Float(ambient_col_r).toString()+" "+
		   new Float(ambient_col_g).toString()+" "+new Float(ambient_col_b).toString()+"\n");
      s.writeBytes("diffuse coefficient : "+new Float(diffuse_coeff).toString()+"\n");
      s.writeBytes("ambient coefficient : "+new Float(ambient_coeff).toString()+"\n");
      s.writeBytes("specular coefficient : "+new Float(specular_coeff).toString()+"\n");
      s.writeBytes("specular exponent : "+new Integer(specular_exp).toString()+"\n");
      s.writeBytes("material color : "+new Float(material_col_r).toString()+" "+
		   new Float(material_col_g).toString()+" "+new Float(material_col_b).toString()+"\n");
      s.writeBytes("intersection image : " + intersection_image + "\n");
      s.writeBytes("gradient volume : " + gradient_vol + "\n");
      s.writeBytes("end\n");
    }
  public String bypass_label(String line)
    {
      String temp;
      temp = line.substring(line.indexOf(':') + 2);
      return temp;
    }
}