import peasy.org.apache.commons.math.*;
import peasy.*;
import peasy.org.apache.commons.math.geometry.*;

import processing.opengl.*;
import javax.media.opengl.*;

PeasyCam cam;
static final float CAM_DEFAULT = 2000;
static final float CAM_MINIMUM = 50;
static final float CAM_MAXIMUM = 4500;

PointCloud cloud;
static final int CLOUD_DEPTH = 5;
static final float CLOUD_GIRTH = 20000;
static final int POINT_LIFETIME = 17500; //15000;

Spawner spawner;
LinkedList crawlers;
static final int NUM_CRAWLERS = 25;
static final int CRAWLER_COLOR = 25;
static final float CRAWLER_RADIUS = 450;//500;
static final float CRAWLER_STEP = 150;
static final float CRAWLER_SPREAD = 600;
static final int CRAWLER_LIFETIME_MIN = 10000;
static final int CRAWLER_LIFETIME_MAX = 25000;

LineCloud lines;
static final int NUM_LINES = 20000;
static final float LINE_SPACE = .01;

static final String[] PALETTES = { "palette_psychogreen.png", "palette_redgreen.png",
                                 "palette_midwarm.png", "palette_seaturtle.png" };

GameTime time;

void setup()
{
  size(645, 645, OPENGL );
  GLSetup();

  // Draw Settings
  ellipseMode( CENTER );
  strokeCap(ROUND);
  strokeWeight( .25 );
  
  noFill();
  smooth();
  
  time = new GameTime();
  
  cam = new PeasyCam( this, CAM_DEFAULT );
  cam.setMinimumDistance( CAM_MINIMUM );
  cam.setMaximumDistance( CAM_MAXIMUM );
  
  Fire();
}

void draw()
{
  time.Update();
  GLDraw();
  background( REVERSECOLOR ? 255 : 0 );
  
  ListIterator it = crawlers.listIterator();
  while( it.hasNext() )
  {
    Crawler crawler = (Crawler)it.next();
    crawler.Update( time );
    if ( crawler.IsDead() )
    {
      it.set( spawner.Spawn() );
    } 
  }
  for( int i = 0; i < crawlers.size(); i++ )
  {
    Crawler crawler = (Crawler)crawlers.get(i);
    crawler.Update( time );
  }
  
  cloud.Update( time.Delta );
  lines.Update( time.Delta );
  
  beginShape( LINES );
  lines.AddToShape();
  endShape();
}


void Fire()
{
  cloud = new PointCloud( CLOUD_DEPTH, CLOUD_GIRTH );
  crawlers = new LinkedList();
  lines = new LineCloud( NUM_LINES );
  spawner = new Spawner( CRAWLER_SPREAD, CRAWLER_RADIUS, CRAWLER_STEP );
  
  for( int i = 0; i < NUM_CRAWLERS; i++ )
  {
    crawlers.add( spawner.Spawn() );
  }
}
/*
void Fire()
{
  cloud = new PointCloud( CLOUD_DEPTH, CLOUD_GIRTH );
  crawlers = new ArrayList();
  lines = new LineCloud( NUM_LINES );
  
  PVector hotspot = new PVector( random(-1,1), random(-1,1), random(-1,1) );
  PVector center = new PVector( random(-100,100), random(-100,100), random(-100,100) );
  PVector wind = PVector.sub( center, hotspot);
  wind.normalize();
  
  float scalar = CRAWLER_STEP;
  
  Palette pal = new Palette( PALETTES[(int)random( PALETTES.length )] );
  
  for( int i = 0; i < NUM_CRAWLERS; i++ )
  {
    PVector pos = new PVector( random( -CRAWLER_SPREAD, CRAWLER_SPREAD), random( -CRAWLER_SPREAD, CRAWLER_SPREAD ), random( -CRAWLER_SPREAD, CRAWLER_SPREAD ));
    PVector vel = PVector.add( wind, new PVector( random( -1.2, 1.2), random( -1.2, 1.2 ), random( -1.2, 1.2 )) );
    vel.mult( scalar );
    crawlers.add( new Crawler( pos.get(), vel.get(), CRAWLER_RADIUS, pal.GetColor() ) );
  }
  
}
*/

void keyPressed()
{
  if( key == ' ' )
  {
    Fire();
  }
}