import noc.*;

//World variables
int maxThings = 10;
int maxFood = 150;
float foodMass = 0.5;
float minMass_ = 2;
float maxMass_ = 5;
float dMin = 5;
float repForce = 0.001;
float mutationRate = 0.01;

// Initial DNA
float hunger_ = 10000; //10000
float hornyFactor_ = 100; //50
float foodInc_ = 0.001;
float deathRate_ = 0.005;
float max_vel_ = 3;
float foodDist = 10;
//Perlin noise variables
float xoff = 0.1;
float yoff = 0.1;
float xincrement = 0.05; 
float yincrement = 0.01; 
float px;
float py;

PFont font;

int maxAttractors = 2;
int trailAmount = 25;

int aNum = 4;
int pNum = 0;
int aMouse;

boolean showVectors = false;
boolean started = false;
boolean show = true;

ThingParticleSystem tPs;
FoodParticleSystem fPs;

int numDead = 0;
int foodTimer = 0;

void setup() {
  font = loadFont("ACaslonPro-Bold-48.vlw");
  textFont(font, 12); 
  size(800,400);
  //size(screen.width,screen.height);
  smooth();
  colorMode(RGB,255,255,255,100);

  tPs = new ThingParticleSystem();
  fPs = new FoodParticleSystem();

  frameRate(30);
}

void draw() {
  fill(0,trailAmount);
  rect(0,0,width,height);

  tPs.run();
  fPs.run();

  if (foodTimer%200 == 0){
    fPs.addParticle(1);
  }
  
  foodTimer++;
  
  if (tPs.total() <= 1){
    reset();
  }
  
  if (tPs.total() > 100){
    tPs.delParticle(0);
  }
  
    text("Press M or N for more or less things. B or V for more or less food. R to RESET", 10,height-10);

}

void mousePressed() {

}
void mouseReleased() {
  //reset();
}
void keyPressed() {
  //  showVectors = !showVectors;

  if (key == 'r' || key == 'R'){
    reset();
  }
  else if(key == 's' || key == 'S'){
    showVectors = !showVectors;
  }
  else if (key == 'm'|| key == 'M'){
    tPs.addParticle();
  }
  else if (key == 'b'|| key == 'B'){
    fPs.addParticle(1);
  }  
  else if (key == 'n'|| key == 'N'){
    tPs.delParticle(0);
  }
  else if (key == 'v'|| key == 'V'){
    fPs.remParticle(0);
  }
  else if (pNum < aNum){
    pNum = aNum;
    aNum++;
    if (aNum == maxAttractors){
      aNum--;
      pNum = maxAttractors;
    }
  }
  else{
    aNum--;
    if(aNum == 0 ){
      pNum = 0;
      aNum++;
    }
  }
} 

// Renders a vector object 'v' as an arrow and a location 'loc'
void drawVector(Vector3D v, Vector3D loc, float scayl) {
  if (v.magnitude() > 0.0) {
    pushMatrix();
    float arrowsize = 4;
    // Translate to location to render vector
    translate(loc.x,loc.y);
    stroke(255);
    // Call vector heading function to get direction (note that pointing up is a heading of 0) and rotate
    rotate(v.heading2D());
    // Calculate length of vector & scale it to be bigger or smaller if necessary
    float len = v.magnitude()*scayl;
    // Draw three lines to make an arrow (draw pointing up since we've rotate to the proper direction)
    line(0,0,len,0);
    line(len,0,len-arrowsize,+arrowsize/2);
    line(len,0,len-arrowsize,-arrowsize/2);
    popMatrix();
  }
}

void reset(){
 started = false;
    aNum = 1;
    pNum = 0;
    for (int i = 0; i < tPs.total(); i++){
    tPs.delAllParticles(i);
  }
  for (int i = 0; i < fPs.total(); i++){
    fPs.delParticle(i);
  }    
  tPs = new ThingParticleSystem();
  fPs = new FoodParticleSystem(); 
}