class Being {
  float redVal;
  float greenVal;
  float blueVal;
  float alphaVal;
  float xloc;
  float yloc;
  int age;
  boolean isPregnant;
  boolean isAlive;
  int progeny;
  int gestation;
  float speed = 2;
  //boolean isIncest;
  //int inbreeding;

  Being() {
    alphaVal = 255;
    redVal = 255;
    greenVal = 40;
    blueVal = 100;
    xloc = random(width);
    yloc = random(height);
    gestation = 0;
    isPregnant = false;
    isAlive = true;
    progeny = 0;
    age = 200;
  }

  Being(float xloc_, float yloc_/*, color b1Color, color b2Color*/) {
    //initcolor;
    redVal = 255;
    greenVal = 40;
    blueVal = 100;
    alphaVal = 255;
    gestation = 0;
    isPregnant = false;
    isAlive = true;
    progeny = 0;
    xloc = xloc_;
    yloc = yloc_;
    age = 0;
  }

  void wander(float speed_) {
    xloc += random(-speed_,speed_);
    yloc += random(-speed_,speed_);
  }

  void rest() {
    isPregnant = true;
  }

  void incrementValues() {
    age++;
    redVal -= 20;
    if(alphaVal > 30) {
      alphaVal--;
    }
  }

  void checkAge() {
    if(age > maxAge * 5) {
      isAlive = false;
    }
  }

  void drawMe() {
    noStroke();
    fill(redVal, greenVal, blueVal, alphaVal);
    ellipse(xloc, yloc, 5, 5);
    wander(speed);
  }
  
  //upon birth, leave home
  void migrate() {
    xloc += random(-10, 10);
    yloc += random(-10, 10);
    }
}

class WorldManager {

  //instantiate objects
  void spawn(int num) {
    for (int i = 0; i < num; i++) {
      humans.add(new Being());
    }
  }
  
  //multiply at location
  void procreate(Being being1, Being being2) {
    Being b1 = being1;
    Being b2 = being2;
    Being b3 = new Being(b1.xloc + random(-width/3, width/3), b1.yloc + random(-height/3, height/3));
    //b3.migrate();
    humans.add(b3);
    b1.isPregnant = true;
    //b2.isPregnant = true;
    b1.progeny++;
    b2.progeny++;

    /*if(isIncest) {
     being3.inbreeding++;
     }*/
  }
  
  //look for mate
  void scan(Being h_) {
    if(h_.age < consentAge*10 || h_.progeny > maxChildren) {
      // do nothing 
    }
    else if(h_.isPregnant) {

      if(h_.gestation < gestationPeriod * 10) { 
        h_.gestation++;
      }
      else {
        h_.isPregnant = false;
      }
    }
    else {
      for(int i=0; i<numHumans; i++) {
        for(int j=0; j<numHumans; j++) {
          if (i != j) {
            Being b1 = (Being) humans.get(i);
            Being b2 = (Being) humans.get(j);
            //check proximity 
            if(dist(b1.xloc, b1.yloc, b2.xloc, b2.yloc) < territory) {
              if(random(1) > chanceToScore) {
                procreate(b1, b2);
              }  
            }
          }
        }
      }
    }
  }
}

//Post Apocalypse Scenario by Cameron Cundiff

int consentAge = 18; //can vary
int maxAge = 100; //chance to die before this value. increment based on population size, size life expectancy should increase with the advent of technology associated with developed populations
float gestationPeriod = .75; //fixed to 9 months, with a 2 week buffer
float territory = 15;
int maxChildren = 2;//inverse to population size
int maxHumans = 1000;//for debugging
float chanceToScore = .99;//inverse to population size. Fewer options equals better chance to score!


//too much inbreeding causes a zombie outbreak
/*
  void geneScreen(Being testSubject) {
 if(testSubject.inbreeding > 3) {
 outbreak();
 }
 }
 
 
 void outBreak() {
 //zomg zombies!
 }
 */


int numHumans = 15;
ArrayList humans = new ArrayList();
WorldManager bigBrother = new WorldManager();

void setup() {
  size(400,400); 
  //output = createWriter("positionsUnderage.txt");
  bigBrother.spawn(numHumans);
}

void draw() {
  background(255);
  smooth();
  
  //chanceToScore = 1 - float(humans.size())/maxHumans;
  
  for(int i = humans.size()-1; i >= 0; i--) { 
    Being h = (Being) humans.get(i);
    if (!h.isAlive) {
      humans.remove(i); 
    }
  }
  
  for(int i = humans.size()-1; i >= 0; i--) { 
    Being h = (Being) humans.get(i);
    h.drawMe();
    bigBrother.scan(h);
    h.incrementValues();
    h.checkAge();
  }
  
  //output.println(humans.size());
  println(humans.size());
  
}

/*
void keyPressed() {
  output.flush();
  output.close();
  exit();
}
*/