/**
 * Dna carrying Particles. The dna is expressed in the fronds around the Plankton
 * Allocation to devouring Amoebas is handled through an internal reference to
 * said Amoeba (this makes life really bloody easy).
 *
 * Original sketch by Aaron Steed:
 * - http://robotacid.com/PBeta/eye4anEye/
 *
 * 2010-02-12 subpixel v01:
 * - PROBLEM: Don't know what to do for gene.kill() in draw(); seems nothing to do
 */

/*
 * 2010-02-12 subpixel:
 * - GeneticAlgorithm.makeChromosome() replaced by createChromosome()
 * - GeneticAlgorithm.dnaLength() method replaced by dnaLength property
 * - GeneticAlgorithm.traitBits() method (and traitBits property) replaced by valueBits property
 * - Chromosome.dna() method replaced by dna property
 * - Chromosome.crossOver() method replaced by splice()
 * - Particle.addVelocity() replaced by Particle.vlocity().add()
 * - Paritcle.kill() replaced by ParticleEngine.removeParticle() methods
 *
 *  2010-02-12 subpixel v02:
 * - Simplify plankton.remove(plankton.indexOf(this)) to plankton.remove(this)
 */

class Plankton{
  Particle body;
  Amoeba allocatedTo;
  Chromosome gene;
  int allocationNum = -1;
  color col, highCol, lowCol;
  boolean allocated = false;
  // Random Plankton constructor
  Plankton(){
    body = ether.makeParticle(1.0, random(-wide * 0.5, wide * 0.5), random(-high * 0.5, high * 0.5), 0.0);
//  gene = soup.makeChromosome();
    gene = soup.createChromosome();
    col = color(150);
//  if(gene.dna()[0] < colorTable.length){
    if(gene.dna[0] < colorTable.length){
//    col = colorTable[gene.dna()[0]];
      col = colorTable[gene.dna[0]];
    }
    highCol = col + color(50, 50, 50);
    lowCol = color(red(col) - 50, green(col) - 50, blue(col) - 50);
  }
  // Amoeba generated Plankton constructor
  Plankton(float x, float y, float theta, Chromosome gene){
    body = ether.makeParticle(1.0, x, y, 0.0);
//  body.addVelocity(cos(theta), sin(theta), 0.0);
    body.velocity().add(cos(theta), sin(theta), 0.0);
    this.gene = gene;
    col = color(150);
    if(gene.dna[0] < colorTable.length){
      col = colorTable[gene.dna[0]];
    }
    highCol = col + color(50, 50, 50);
    lowCol = color(red(col) - 50, green(col) - 50, blue(col) - 50);
  }
  void draw(){
    // Sensors
    if(allocated){
      if(collide()){
        allocatedTo.makeSkin(1);
        allocatedTo.iris = 0.5;
        allocatedTo.state = STARING;
//      allocatedTo.gene.crossOver(gene);
        allocatedTo.gene.splice(gene);
        allocatedTo.newSkin = (allocatedTo.gene.dna[2] % 4) + 5;
        allocatedTo.irisTheta = -HALF_PI;
        ether.removeAttraction(allocatedTo.attraction); // new in v02
        allocatedTo.attraction = null; // new in v02
//TODO: find out if gene.kill() did anything that needs to be replicated
//      gene.kill();
//      body.kill();
        ether.removeParticle(body);
//      plankton.remove(plankton.indexOf(this));
        plankton.remove(this);
      }
    }
    if(body.position().x() > (wide * 0.5) + 8){
//    body.addVelocity(-1.0, 0.0, 0.0);
      body.velocity().add(-1.0, 0.0, 0.0);
    }
    if(body.position().y() > (high * 0.5) + 8){
//    body.addVelocity(0.0, -1.0, 0.0);
      body.velocity().add(0.0, -1.0, 0.0);
    }
    if(body.position().x() < -(wide * 0.5) - 8){
//    body.addVelocity(1.0, 0.0, 0.0);
      body.velocity().add(1.0, 0.0, 0.0);
    }
    if(body.position().y() < -(high * 0.5) - 8){
//    body.addVelocity(0.0, 1.0, 0.0);
      body.velocity().add(0.0, 1.0, 0.0);
    }
    // Drawing stuff
    strokeWeight(1.0);
//  int spokes = soup.dnaLength() * soup.traitBits;
    int spokes = soup.dnaLength * soup.valueBits;
    float rad = TWO_PI / spokes;
    stroke(lowCol);
//  for(int i = 0; i < soup.dnaLength(); i++){
    for(int i = 0; i < soup.dnaLength; i++){
//    for(int j = 0; j < soup.traitBits(); j++){
      for(int j = 0; j < soup.valueBits; j++){
//      if((gene.dna()[i] & soup.singleBitMask[j]) > 0){
        if((gene.dna[i] & soup.singleBitMask[j]) > 0){
//        float ix = body.position().x() + cos(rad * (j + i * soup.traitBits())) * 7;
          float ix = body.position().x() + cos(rad * (j + i * soup.valueBits)) * 7;
//        float iy = body.position().y() + sin(rad * (j + i * soup.traitBits())) * 7;
          float iy = body.position().y() + sin(rad * (j + i * soup.valueBits)) * 7;
          line(body.position().x(), body.position().y(), ix, iy);
        }
      }
    }
    stroke(col);
    fill(highCol);
    ellipse(body.position().x(), body.position().y(), 7, 7);
  }
  // Set to Amoeba
  void allocate(Amoeba allocation, int num){
    allocatedTo = allocation;
    allocatedTo.iris = 0.8;
    allocationNum = num;
    allocated = true;
  }
  // Collision
  boolean collide(){
    Particle temp = (Particle)allocatedTo.engine.get(allocationNum);
    allocatedTo.irisTheta = atan2(body.position().y() - allocatedTo.nucleus.position().y(), body.position().x() - allocatedTo.nucleus.position().x());
    if(dist(temp.position().x(), temp.position().y(), body.position().x(), body.position().y()) < allocatedTo.mySize * 0.3){
      return true;
    }
    return false;
  }
}