package lilWorld;

import java.util.ArrayList;
import java.util.List;

import processing.core.PApplet;
import processing.core.PVector;

public class CreeperSystem {
Creeper temp;
Creeper c;
List<Creeper>allCreepers;
PApplet parent;
int creatureNo;
int G = 10;
int size1;
int size2;
float crPlus = 0;
float forceVal = 10;


CreeperSystem(PApplet p, int n, int s1, int s2) 
{
	
	allCreepers = new ArrayList<Creeper>();
	parent= p;
	creatureNo = n;
	size1 = s1;
	size2 = s2;
		for(int i = 0;i < creatureNo; i++)	
		{	
		    PVector a = new PVector(0.0f,0.0f);
		    PVector v = new PVector(parent.random(-3,3),parent.random(-3,3));
		    //PVector l = new PVector(parent.random(parent.width),parent.random((parent.height)-(parent.height/8)), parent.height);
		    PVector l = new PVector(parent.random(parent.width),parent.random(600, parent.height/3));
		    System.out.println(l.y);
		    System.out.println((parent.height)-(parent.height/8));
			Creeper creep = new Creeper(l, a, v, (int)parent.random(size1,size2), parent);
			System.out.println("new creature here " + i);
			creep.graphicsNum = (int) parent.random(3);
			//System.out.println(creep.graphicsNum + "THIS IS THE NUMBER");
			allCreepers.add(creep);
			
	}
	}

public void pushCreepers()
{
	for (int i = 0; i < allCreepers.size(); i++)
	{
		c = allCreepers.get(i); // pick a creeper
		//System.out.println(c.getClass().toString());

		for(int j = 0; j <allCreepers.size(); j++) // step through array
		{
			if (j != i) //make sure not to compare with self
			{
				 temp =  allCreepers.get(j); //get a creeper

				if (checkProx(temp, c))
				{
					if (c.loc.x == temp.loc.x && c.loc.y == temp.loc.y)//creatures are in same spot
					{
						System.out.println("a direct hit!");
						PVector dir = new PVector(parent.random(-15,15),parent.random(-15,15));
						dir.normalize(); 
						float force = -1 * forceVal;            // Repelling force is inversely proportional to distance
						dir.mult(force); 
						temp.applyForce(dir);
						//temp.changeColor();
						//System.out.println(c.loc+" "+temp.loc+" should be the same");

					}
					else//creatures are just near each other
					{
						/*if(c.isReady() && temp.isReady())//check if ready to mate
						{

						}
						else
						{*/
							//System.out.println("repelling!");
							//System.out.println(c.loc+" "+temp.loc+" should be different");
							PVector dir = PVector.sub(c.loc,temp.loc); // Calculate direction of force
							float dist = dir.mag();                       // Distance between objects
							dir.normalize();                           // Normalize to between 0 and 1
							dist = parent.constrain(dist,1,100);             // Keep distance within a reasonable range
							float force = -1 * forceVal * G / (dist * dist);            // Repelling force is inversely proportional to distance
							//float force = -1 * forceVal; 
							dir.mult(force);                           // Get force vector --> magnitude * direction
							temp.applyForce(dir);
							temp.changeColor();
							c.changeColor();
							c.startTime(500);
							temp.startTime(500);
						

					}

				}
			}

		}

	}
}



public void moveCreepers()
{
	for(int i = 0;i < allCreepers.size(); i++)
	{
		temp = allCreepers.get(i);
		temp.move();
	}
		
}


public void showCreepers()
{
	for(int i = 0;i < allCreepers.size(); i++)
	{
		//System.out.println("HERE");
		temp = allCreepers.get(i);
		temp.show();
	}
		
}


public void meetReaper()
{
	for (int i = 0; i < allCreepers.size(); i++)
	{
		c =  allCreepers.get(i); // pick a drifter
		if(c.lifespan.isFinished())
		{
			//System.out.println("DIE");
			allCreepers.remove(i);
		}
		//System.out.println("still alive!");
		
	}
}


public Boolean checkProx(Creature a, Creature c)
{
	float aR;
	
	aR = a.getSize()/2; // get radius temp
	float cR = c.getSize()/2; //get radius c
    //cr+= crPlus;
    float tempR = cR + aR;
   //System.out.println("against " + tempR);
    if (PApplet.dist(c.loc.x, c.loc.y,a.loc.x, a.loc.y)<= tempR)
    {
    	//System.out.println("NEAR!!!!!!");
    	return true; //they are near each other
    	
    }
    else
    {	
        //System.out.println("not near!");
    return false; //they are not near each other
    }
    
}
      

void makeBabies(PVector location)
{
	int numberOfBabies = (int) parent.random(1, Vars.creeperBabies);
	System.out.println(numberOfBabies+"creeper babies!");
	for(int i = 0; i<numberOfBabies; i++)
	{
		PVector a = new PVector(0.0f,0.0f);
		PVector v = new PVector(parent.random(-0.15f,0.15f),parent.random(2,5f));
		PVector l = new PVector(location.x, location.y+1*5);
		Creeper baby = new Creeper(l, a, v, 12, parent);
		allCreepers.add(baby);
	}
}


public void eatOthers(DrifterSystem other)
{
	for (int i = 0; i < allCreepers.size(); i++)
	{
		Drifter someDrifter;
		c =  allCreepers.get(i); // pick a creeper
		if (c.isHungry())
		{
		for(int j = 0; j <other.allDrifters.size(); j++) // step through array
		{
			someDrifter = (Drifter) other.allDrifters.get(j);
			
			{
				if(checkProx(someDrifter, c))
				{
					if (someDrifter.isReadyToGetEaten())
					{
						c.grow();
						//c.changeColor();
						makeBabies(c.loc);
						other.allDrifters.remove(j);
						System.out.println("DELICIOUS DRIFTER MMMMMMM!");
					}	
				}
				
			}		
		}
	  }
	}	
}

public void huntDrifters(DrifterSystem other)
{
	for (int i = 0; i < allCreepers.size(); i++)
	{
		Drifter someDrifter;
		c =  allCreepers.get(i); // pick a creeper
		for(int j = 0; j <other.allDrifters.size(); j++) // step through array
		{
			someDrifter = (Drifter) other.allDrifters.get(j);
			
			{
				if (someDrifter.isReadyToGetEaten())
				{
					//System.out.println("found a baby drifter");
					c.huntForFood(someDrifter.loc);
				}
				else
				{
					//System.out.println("not a baby");
				}
				
			}		
		}
	}	
}



}