//import processing.opengl.*;
//PTablet tablet;
boolean tabletPressed=false;
penStroke ps=new penStroke();
penStroke lastps=new penStroke();
penStroke simplified=new penStroke();
float lastpsFade=1;

SVGImage imgDummy;
creature clist[]=new creature[0];

boolean paused=false;
boolean useSmooth=true;

float timer;
void setup()
{
  size(500,500,P3D);
//  if(useSmooth)
//    smooth();  
  framerate(30);

//    tablet = new PTablet();
//    tablet.startTablet();    
//    tablet.readTablet();
  ellipseMode(CENTER);
  uiFont=loadFont("Scala-Regular-25.vlw");    
  loadImages();
  createFlowField();      

}

float kp=0;
float zoom=0;
void draw()
{
  background(255);
  manageTablet();
  manageFlowField();
  manageCreatures();
  drawUI();
  
//  println(tablet.pressure);
}
void recordTablet()
{
  vec pm=nv(pmouseX,pmouseY);
  vec mp=nv(mouseX,mouseY);
  if(dist(pm,mp)>.5)
    ps.addPoint();  
}


void drawSimplified()
{
  if(!displayUI)
    return;
  simplified=simplify(ps);    
  if(simplified!=null)
  {
    for(int i=0;i<simplified.points.length;i++)
    {
      noFill();
      stroke(255);
      ellipse(simplified.points[i].p,7);
      if(i>0)
        line(simplified.points[i-1].p,simplified.points[i].p);
    }
  }
}

void manageCreatures()
{  
  if(clist==null||clist.length<1)
    return;
  if(!paused)
  {
//    float st=millis();
    for(int i=0;i<clist.length;i++)
    {
      clist[i].update();
    }
//    float sp=millis();
//    float delta=sp-st;
//    if(keyPressed)
//      println("time used simulating: "+delta);
  }
//  float st=millis();    
  for(int i=0;i<clist.length;i++)
  {
    clist[i].draw();
  }
//  float sp=millis();    
//  float delta=sp-st;
//  if(keyPressed)
//  {
//    println("time used drawing: "+delta);     
//    println("---------------------------");
//  }
     
}
void newCreature(penStroke ps,int g)
{
  switch(g)
  {
    case 1://speck
    break;
    case 2://curvy
    if(ps.totalLength<60)
    {//mush
      creature temp[]=new creature[clist.length+1];
      System.arraycopy(clist,0,temp,0,clist.length);    
      temp[clist.length]=new mush(ps);
      clist=temp;          
      return;
    }
    if(ps.totalLength>=60&&ps.totalLength<280)
    {//armor
      creature temp[]=new creature[clist.length+1];
      System.arraycopy(clist,0,temp,0,clist.length);    
      temp[clist.length]=new armor(ps);
      clist=temp;    
      return;     
    }
    if(ps.totalLength>=280&&ps.totalLength<1200)
    {//snakey
      creature temp[]=new creature[clist.length+1];
      System.arraycopy(clist,0,temp,0,clist.length);    
      temp[clist.length]=new snakey(ps);
      clist=temp;    
      return; 
    }
    break;        
    case 3:
   
    break;
  }
}
void manageTablet()
{
//  tablet.readTablet();    
  curGesture=interpretStroke(ps);
  drawTabletStroke(ps,curGesture,1);
  drawTabletStroke(lastps,0,lastpsFade);  
//  penStroke simp=simplify(ps);
//  drawTabletStroke(simp,1);
  lastpsFade*=.97;
  if(lastpsFade<.01)
    lastps=null;
  vec tabletTilt=new vec();
  float tabletTiltTotal=0;
  if(mousePressed)
  {//tabletPressed
    if(tabletTiltTotal<100)
    {//with tip
      recordTablet();      
      if(lastGesture!=3)
        lastps=null;
      tabletPressed=true;
    }
    else
    {//with eraser
      vec vf=findFlowVec(nv(mouseX,mouseY));
      vec pm=new vec(pmouseX,pmouseY);
      vec mp=new vec(mouseX,mouseY);
      vec mv=new vec(pm,mp);
      mv.mul(2);
      flowField[int(vf.x)][int(vf.y)].add(mv);      
    }
  }
  else
  {
    if(tabletPressed)
    {//tabletReleased
      if(tabletTiltTotal<100)
      {//with tip
        newCreature(ps,curGesture);
      }
      else
      {//with eraser
        
      }
    }

    //------------tablet not pressed
    lastGesture=curGesture;  
    if(lastps==null)    
    {
      lastps=new penStroke(ps);
      lastpsFade=1;
    }
    ps=new penStroke();    
    tabletPressed=false;
  }
  if(curGesture==3)
  {
    lastGesture=curGesture;
    curGesture=0;    
    //create creature 3 "flora"
    creature temp[]=new creature[clist.length+1];
    System.arraycopy(clist,0,temp,0,clist.length);    
    temp[clist.length]=new flotsam(ps);
    clist=temp;     
    lastps=new penStroke(ps);
    lastpsFade=1;
    ps=new penStroke();      
  }  
}