//sunflow libraries
//import hipstersinc.sunflow.*;
//import hipstersinc.sunflow.shader.*;
//import hipstersinc.*;

//dxf
import processing.dxf.*;

//opengl
import processing.opengl.*;


//set up xyz arrays
float [] x=new float[100];
float [] y=new float[100];
float [] z=new float[100];

//set record to false
boolean record=false;

//create output object for writing to txt
//PrintWriter output;

void setup(){

  // size(300,300,"hipstersinc.P5Sunflow"); // requires lights to be off

  //size(300,300,P3D);
  size(300,300,OPENGL);

  //set txt output file name
  //output=createWriter("xyzpoints.txt");

}

void draw(){
  //if(record) beginRaw(DXF,"test-####.dxf");

  background(0);
  //lights must be turned off for sunflow render
  lights(); 


  //camera(eyeX, eyeY, eyeZ, centerX, centerY, centerZ, upX, upY, upZ)
  camera(mouseX*2,mouseY*2,300,width/2,height/2,0,0,1,0);

  //fill x y z arrays with positions
  for (int i=1; i<100; i++){
    for(int j=1; j<100; j++){

      //spacing of 4 pixels
      int spacing=4;
      x[i]=i*spacing;
      y[j]=j*spacing;
      //z is based on sin to create a wave of amplitude 25 and frequency of 6
      z[j]=sin(TWO_PI*j/100*6)*25;


      //if we're recording, save x y z to txt file
      //if(record)output.println(x[i]+","+y[j]+","+z[j]);

    } 
  }

  //draw quads 
  fill(100);
  noStroke();
  for (int i=1; i<100-1; i++){
    for(int j=1; j<100-1; j++){
      fill(255);
      beginShape(QUADS);
      vertex(x[i],y[j],z[j]);
      vertex(x[i+1],y[j],z[j]);
      vertex(x[i+1],y[j+1],z[j+1]);
      vertex(x[i],y[j+1],z[j+1]);
      endShape();
    }
  }


  //if we're recording, save dxf, save txt file, and exit
   if(record){
   endRaw();
   record=false;
   
   //output.flush();
   //output.close();
   exit();
   }

}


void keyPressed(){
  if(key=='r')record=true;
}