// CSE 142 Winter 2008, Marty Stepp
//
// A Snake slithers by moving in the following way:
// 1 east, 1 south, 2 west, 1 south, 3 east, 1 south, 4 west, 1 south, 5 west, ...

import java.awt.*;   // for Color
import java.util.*;  // for Random

public class Snake extends Critter {
	// fields
	private int horizontal;            // how wide of a horizontal cycle I'm on right now
	private int distanceTraveled;      // how much of this cycle have I completed?
	private Direction cycleDirection;  // which way is the current cycle?
	
	// constructor
	// This initializes the state of a new Snake object as it is created.
	public Snake() {
		horizontal = 1;
		distanceTraveled = 0;
		cycleDirection = Direction.EAST;
	}
	
	public Direction getMove() {
		// for debugging
//		System.out.println("Snake move: horiz=" + horizontal + ", dist=" + 
//			distanceTraveled + ", cycleDir=" + cycleDirection);
	
		if (distanceTraveled < horizontal) {
			// a move in the middle of a cycle
			distanceTraveled++;
			return cycleDirection;
		} else {
			// we have just reached the end of the cycle
			horizontal++;
			distanceTraveled = 0;
			if (cycleDirection == Direction.EAST) {
				cycleDirection = Direction.WEST;
			} else {
				cycleDirection = Direction.EAST;
			}
			return Direction.SOUTH;
		}
	}
	
	public Attack fight(String opponent) {
		Random randy = new Random();
		int choice = randy.nextInt(2);
		if (choice == 0) {
			return Attack.ROAR;
		} else {
			return Attack.POUNCE;
		}
	}
	
	public Color getColor() {
		// red=64, green=228, blue=32
		return new Color(64, 228, 32);
	}
	
	public String toString() {
		return "S";
	}

//	I don't need an eat method since the default is to return false anyway	
//	public boolean eat() {
//		return false;
//	}
}