//Tasha Wallage
//Period 7


	//herbivore species that eats Food and gets eaten by Predator
    public class Organism implements Species
   {
      private int speed, energy, defense, gender, xregen, stepper, range;
      private double deathRate, age;
      private World wd;
      private Location myLoc;
      private Food food;
      
       public Organism(World wd, int range)
      {
         this.wd = wd;
         this.range = range;
         int x = (int)(Math.random()*range);
         int y = (int)(Math.random()*range);
         myLoc = new Location(x, y);
         speed = 1;
         energy = 500;
         age = 0;
         defense = 5;
         gender = 1;
         xregen = 10;
         stepper = 0;
         deathRate = 0.009;
         food = (Food)wd.getClosest("Food",getLoc());
      }
       public Organism(World wd, Location loc, int speed, int defense, int gender, int xregen, int range)
      {
         this.range = range;
         this.wd = wd;
         myLoc = loc;
         this.speed = speed;
         this.defense = defense;
         this.gender = gender;
         this.xregen = xregen;
         energy = 500;
         age = 0;
         stepper = 0;
         deathRate = 0.009;
         food = (Food)wd.getClosest("Food",getLoc());
      }
      //determines the next action of an Organism based on age (different preferences such as breeding)
       public void act()
      {
         stepper ++;
         energy --;
         age = ((double)stepper/(double)speed)/365.25;
	 food = (Food)wd.getClosest("Food",getLoc());
         if(age < 1){
            if(food !=null)
               move(food.getLoc());
            die();
         }
         else if (age >=1 && age < 40){
            deathRate+=.005;
            if(!breed(((Organism)wd.getClosest("Organism",getLoc()))))
               if(food !=null)
                  move(food.getLoc());
            die();
         }
         else if (age >=40 && age < 60){
            deathRate+=.001;
            if((int)Math.random()*2%2==0 || !breed(((Organism)wd.getClosest("Organism",getLoc()))))
               if(food !=null)
                  move(food.getLoc());
            die();
         }
         else if(age > 60){
            deathRate+=.01;
            if(food !=null)
               move(food.getLoc());
            die();
         }
         if(energy==0)
            wd.remove(this);
      }
      //moves the Organism closer to the specified Location
       public void move(Location loc)
      {
         Location oldLoc = getLoc();
         int x = myLoc.getX();
         int y = myLoc.getY();
         int xLoc = loc.getX();
         int yLoc = loc.getY();
         
         if(xLoc==-1 && yLoc == -1)
            return;		
         else if(x==xLoc && y==yLoc && wd.consume(food, this))
         {
            food = (Food)wd.getClosest("Food", getLoc());
	    return;   
         }
         else if((xLoc!=x) && (yLoc == y || (int)(Math.random()*2)%2==0))
         {
            wd.remove(this);
            if(x > xLoc && x>0 )
               x--;
            else if( x < xLoc && x<range)
               x++;
         }
         else{
            wd.remove(this);
            if(y > yLoc && y>0)
               y--;
            else if(y < yLoc && y <range)
               y++;
         }
         myLoc.setLoc(x, y);
         wd.add(this);
      }
      //removes the Organism from the World based on the deathRate probability (increases with age)
       public void die()
      {
         if(Math.random() < deathRate)
            wd.remove(this);
      }
      //recharges energy (eating Food)
       public void eat(int units)
      {
         energy+=units;
      }
      //creates a new Organsim only if there is space and a partner to breed with
       public boolean breed(Organism o)
      {
         if(gender==2 || xregen==0)
            return false;
         if(wd.getVacantSpot(o.getLoc())==null)
            return false;
         wd.add(breed2(o));
         return true;
      }
      //reduces energy and xregen and creates a new Organism based on the traits of itself and the father
       public Organism breed2(Organism o)
      {
         energy-=10;
         xregen-=1;
      
         int childSpeed = crossOver(speed, o.getSpeed());
         int childDefense = crossOver(defense, o.getDefense());
         int childGender = (int)(Math.random()*2+1);
         int childXregen = crossOver(xregen, o.getXregen());
      
         if(childDefense>3 && childSpeed >3)
            childSpeed=2;
         else if(childDefense>6 && childSpeed>2)
            childSpeed=1;
      
         Organism child = new Organism(wd, wd.getVacantSpot(o.getLoc()), childSpeed, childDefense, childGender, childXregen, range);
         return child;			
      }
      //crosses over the genes of the parents to form a new unique individual (sometimes mutation occurs)
       public int crossOver(int trait1, int trait2)
      {
      //determines the trait of the organism based on that of the parents
         int childTrait = 0;
         if(trait2<trait1){
            childTrait = trait1+1;
            while(childTrait > trait1){
               childTrait = (int)(Math.random()*trait1) + trait2;
               if(((int)(Math.random()*101)==9))
                  break;
            }
         }
         else{
            childTrait = trait2+1;
            while(childTrait > trait2){
               int rand = (int)(Math.random()*3);
               if(rand==0)
                  childTrait = (int)(Math.random()*trait2) + trait1; 
               else if(rand==1)
                  childTrait = (int)(Math.random()*trait1) + trait2;
               else
                  childTrait = (int)(Math.random()*trait2) + (int)(Math.random()*trait1); 
               if(((int)(Math.random()*10)==9))
                  break;
            }
         }
         return childTrait;
      }
       public Location getLoc()
      {
         return myLoc;
      }
       public int getSpeed()
      {
         return speed;
      }
       public int getDefense()
      {
         return defense;
      }
       public int getXregen()
      {
         return xregen;
      }
       public String getName()
      {
         return "Organism";
      }
       public String toString()
      {
         return "O["+myLoc.getX()+", "+myLoc.getY()+"]"+"S"+speed+" D"+defense+" E"+energy+" A"+age+"G"+gender;
      }
   }