String LOAD_FILE="creatureEx.gen";
int timeSteps=0;

position genomeAnchor=new position(25,50);
position scrollPos=new position(genomeAnchor.x,genomeAnchor.y-15);
scrollBar genomeScroll=new scrollBar(scrollPos,400);

PFont uiFont;
boolean displayUI=false;
boolean displayNeuronUI=false;
boolean displayGenomeUI=true;
boolean useSmooth=false;
int displayMode=2;
position vpos;
position vposT;
float zoomAmount=0;
float zoomTarget=0;

boolean dragCreature=false;
boolean stimulateNeuron=false;

boolean useGravity=false;
boolean useMirror=true;

float LIGHT_VALUE=1;


cell selected=null;
int selectedID=0;

float FRICTION_FORCE=0.95;
float FLUID_FORCE=.2;
vector GRAVITY_VECTOR=new vector(270,.1);

position lightSource;

position spawnPos;

creature currentCreature;
//EVOLUTION VARS
boolean simulationMode=true;
boolean recording=false;

lightHolder curs=new lightHolder(200);

void setup()
{

  useRK=true;
  size(500,500);
  uiFont=loadFont("KnockoutHTF30JuniorWelterwt-48.vlw");
  textFont(uiFont);
  textMode(CORNER);  
  ellipseMode(CENTER);
  rectMode(CORNER);
  if(useSmooth) 
    smooth();  
  vpos=new position(0,0);  
  vposT=new position(0,0);
  spawnPos=new position(width/2,height/2);
  currentCreature=new creature(spawnPos); 
  currentCreature.importGen("creatureEx.gen");
  bestCreature=currentCreature; 
  initTextBuffer();
//generate a list of random creatures
  if(!simulationMode)
  {
    for(int i=0;i<clist.length;i++)
    {
      clist[i]=new creature(spawnPos);
    }
  }
  lightSource=new position(width/2,-600);  
  timeSteps=0;  
}

void draw()
{
  if(!simulationMode)
  {
    smooth();
    background(35);
    printTextBuffer();    
    evolution();  
    printTopicalData();
  }
  if(simulationMode)
  {
    timeSteps++;  
    lightSource=new position((mouseX-vposT.x),(mouseY-vposT.y));
    if(displayUI)
      doUI(currentCreature);  
    else
    {
      background(0);
      stroke(70);
      noFill();
      if(!recording)
//      rect(10,50,480,400);       
      noStroke();
      fill(160);
      textFont(uiFont,20);
      if(!recording)
      {
        text("press 'h' for interface",15,470); 
        text("press keys 6-0 to see various creatures",15,490);  
//        text("press 'q' to continue evolving",15,490);     
      }
    }    
    if(!currentCreature.checkStability())
      currentCreature=new creature(spawnPos);
    currentCreature.update(lightSource);
    vposT=vposT.displace(getHeading(vposT,vpos),dist(vposT,vpos)/5);
    cameraFollow(currentCreature);    
    cameraZoom();
//    if(!recording)
      drawArrowToLight();

    
    push();
    translate(vposT.x,vposT.y,zoomAmount);
    display(currentCreature);
    curs.update(lightSource);    
    curs.draw(); 
    

    if(!displayUI)
      drawGrid();       
//    if(!recording)
//    {
//        drawLight(); 
//        drawSpawn();       
//        displayCreatureData(currentCreature);
//    }
        
    pop();  
  }
    if(recording)
    {
      saveFrame("cc-#####.tif");
    }  
}

void mousePressed()
{
     
}
void mouseWheelMoved(MouseWheelEvent e)
{
  int notches = e.getWheelRotation();
  zoomAmount+=notches;    
  if(notches!=0)
    println(notches);
}

void cameraFollow(creature c)
{
  vpos=new position(width/2-c.p.x,height/2-c.p.y);
}
void cameraZoom()
{
  if(keyPressed)
  {
    if(key=='+')
      zoomTarget+=20;
    if(key=='-')
      zoomTarget-=20;  
    zoomTarget=constrain(zoomTarget,-500,600);
  }
  zoomAmount+=(zoomTarget-zoomAmount)/4;
}
void drawLight()
{
  noFill();
  stroke(255,50);
  ellipse(lightSource,50);  
}
void drawSpawn()
{
  noStroke();
  fill(255,20);
  ellipse(spawnPos,70);    
}

void drawGrid()
{
  stroke(30);
  fill(60,80,120);
  noStroke();

  for(int y=-1000;y<1000;y+=50)
  {
    //stroke(60,60,80*(y+1000)/500);  

    for(int x=-1000;x<1000;x+=50)
    {
      ellipse(x,y,2,2);    
    }  
  }  
}
void drawArrowToLight()
{
  position s=new position(450,450);
  float h=getHeading(currentCreature.p,lightSource);
  position e=s.displace(h,20);
  stroke(150,180,160);  
  noFill();  
  ellipse(s,25); 
  fill(150,180,160);  
  drawArrow(s,e);
}