import java.util.*;
import java.awt.*;



public class Animal implements Agent {


	protected Environment world = null;
	protected ArrayList<Agent> agents = null;
	protected int x = 0;
	protected int y = 0;
	
	// Neighbourhood variables.
	
	// Neighbourhood 'radius'.
	// At the moment the neighbourhood is a hexagon by default, so this is the longest 
	// distance from the centre to the edge.

	private int neighbourhoodRadius = 5;
	
	// Trig result used for laying out the hexagonal neighbourhood. 
	
	private int opp = (int)Math.abs((Math.sin(Math.toRadians(30.0)) * (double)neighbourhoodRadius));
	
	// Trig result used for laying out the hexagonal neighbourhood. 
	
	private int adj = (int)Math.abs((Math.cos(Math.toRadians(30.0)) * (double)neighbourhoodRadius));

	

	public Animal (Environment world, ArrayList<Agent> agents) {
	
		this.world = world;
		this.agents = agents;
		x = 50;
		y = 150;

	}
	
	
	

	public void run () {
	}
	

	

	public int getX() {
	
		return x;
		
	}
	
	
	
	

	public int getY() {
	
		return y;
		
	}
	
	
	// Polymorphic neighbourhood methods.
	
	

	// Gets the hexagonal neighbourhood around the current location.
	// The advantage with a Polygon is that you can use Polygon.contains(x,y) to see if 
	// other agents etc. fall inside it.

	public Polygon getNeighbourhood() {
	
		return getNeighbourhood(this.x,this.y);
	
	}
	
	
	
	

	// Gets a hexagonal neighbourhood around an arbitrary location.
	// Can be used, for example, to check future neighbourhoods for suitability 
	// before moving to them.
	// The advantage with a Polygon is that you can use Polygon.contains(x,y) to see if 
	// other agents etc. fall inside it.

	public Polygon getNeighbourhood (int x, int y) {
	
		// Make an array of x coordinates.
		int[] xs = {
			x - adj, 
			x, 
			x + adj,	
			x + adj, 
			x, 
			x - adj
		};
		
		// Make an array of y coordinates.
		int[] ys = {
			y - opp, 
			y - neighbourhoodRadius,	
			y - opp, 
			y + opp,	
			y + neighbourhoodRadius, 
			y + opp
		};
		
		// Use these to make and return a Polygon.
		return new Polygon (xs,ys, xs.length);
	}
	
}