package example7_2.game;

import example7_2.game.characters.Flower;

import java.util.List;

/**
 * A move behavior that looks for the flower with the highest points/distance ratio and avoids
 * flowers that can change the move behavior.
 * @author macavaneys
 */
public class SuperSmartMoveBehavior implements MoveBehavior {
	
	/**
	 * A list of flowers that can change the move behavior
	 */
	public final static String[] DANGEROUS_FLOWER_NAMES = new String[] {AdvancedTagBehavior.RANDOM_FLOWER_NAME, AdvancedTagBehavior.GREEDY_FLOWER_NAME, AdvancedTagBehavior.SMART_FLOWER_NAME};
	
	/**
	 * The character associated with this move behavior
	 */
	private GameCharacter gc;
	
	/**
	 * Initializes SuperSmartMoveBehavior for the specified game character.
	 * @param character The character associated with this move behavior
	 */
	public SuperSmartMoveBehavior(GameCharacter character) {
		this.gc = character;
	}
	
	/**
	 * Moves to the flower with the highest point/distance ratio, avoiding dangerous flowers when in advanced mode. 
	 */
	@Override
	public void planMove(List<GameCharacter> list) {
		// Find the closest flower with at least 3 points.
		GameCharacter targetCharacter = null;
		double targetCharacterPointsPerDistance = Double.MIN_VALUE;
		for (GameCharacter character : list) {
			if (character instanceof Flower && !isDangerous(character)) {
				// Target this flower if it is closer than the current target
				double distance = gc.distanceTo(character);
				if (distance > 0) {
					double pointsPerDistance = character.getScore() / distance;
					if (pointsPerDistance > targetCharacterPointsPerDistance) {
						targetCharacter = character;
						targetCharacterPointsPerDistance = pointsPerDistance;
					}
				}
			}
		}
		
		if (targetCharacter != null) {
			// Move to this flower
			gc.setTargetPosition(targetCharacter.getCurrentRow(), targetCharacter.getCurrentColumn()); // set the new target position; the Game framework will do the actual move
		}
		else { // targetCharacter == null
			// There's no acceptable flower, so don't move anywhere.
			gc.setTargetPosition(gc.getCurrentRow(), gc.getCurrentColumn());
		}
		
		Game.validateMove(gc);
	}
	
	/**
	 * Returns true or false depending on whether or not the flower is "dangerous", meaning it could change gc's
	 * move behavior, making it less smart.
	 */
	private boolean isDangerous(GameCharacter character) {
		boolean isDangerous = false;
		if (Game.timeCounter <= Game.ADVANCED_GAME_MODE_TIME) {
			for (String name : DANGEROUS_FLOWER_NAMES) {
				if (isDangerous = character.getName().equals(name))
					break;
			}
		}
		return isDangerous;
	}
}