package example7_2.game;

import java.util.List;
import java.util.Random;

/**
 * Moves the character randomly
 * @author macavaneys
 *
 */
public class RandomMoveBehavior implements MoveBehavior {
	
	/**
	 * The maximum amount of movement allowed per turn.
	 */
	private final int RANDOM_INCREMENT = 3;
	
	/**
	 * The character associted with this behavior
	 */
	private GameCharacter gc;
	
	/**
	 * Creates a new RandomMoveBehavior for the specified character
	 */
	public RandomMoveBehavior(GameCharacter character) {
		this.gc = character;
	}
	
	/**
	 * Moves randomly.
	 */
	@Override
	public void planMove(List<GameCharacter> list) {
		int deltaR; // incremental movement value in row direction
		int deltaC; // same, but in column direction
		Random r = new Random();
		deltaR = r.nextInt(2*RANDOM_INCREMENT+1)-RANDOM_INCREMENT;	// generate random values between -INCREMENT and INCREMENT
		deltaC = r.nextInt(2*RANDOM_INCREMENT+1)-RANDOM_INCREMENT;  	//  to determine how far the Bee will move this turn
		
		int rowNext = gc.getCurrentRow() + deltaR;		// the new target row and column to move to
		int colNext = gc.getCurrentColumn() + deltaC;
		
		gc.setTargetPosition(rowNext, colNext); // set the new target position; the Game framework will do the actual move
		Game.validateMove(gc);	// This MUST be called for the Game framework to validate the target position
	}
	
}