import javafx.geometry.Pos;

import java.util.Random;

public class Monster {

    private int health = 100;
    private boolean alive = true;
    private int moveCol;
    private int moveRow;
    private Position monsterLocation;
    private int direction = 1;
    public static final int NORTH = 0;
    public static final int EAST = 1;
    public static final int SOUTH = 2;
    public static final int WEST = 3;
    private TowerDefenceLevel level;


    public Monster(int rowStart, int colStart, TowerDefenceLevel level){
        monsterLocation = new Position(rowStart,colStart);
        this.level = level;
    }

    public int getHealth() {
        return health;
    }

    public Position getPosition() {
        return monsterLocation;
    }

    public void setHealth(int damage){
        health = health - damage;
    }

    public boolean frontIsClear() {
        if (){
        }
        int row = monsterLocation.getRow();
        int col = monsterLocation.getCol();
        if (direction == NORTH)
            row = row -1;
        else if (direction == SOUTH)
            row = row +1;
        else if (direction == EAST)
            col = col +1;
        else
            col = col -1;
        return level.passable[row][col];

        //return world.isValid(loc) && world.getImage(loc) == null;
    }//frontIsClear
    public boolean leftIsClear() {
        int row = monsterLocation.getRow();
        int col = monsterLocation.getCol();
        if (direction == NORTH)
            col = col - 1;
        else if (direction == SOUTH)
            col = col +1;
        else if (direction == EAST)
            row = row -1;
        else
            row = row + 1;
        return level.passable[row][col];
    }//leftisclear

    //före: roboten vet inte vad som finns till höger i körriktningen
    //efter: roboten vet vad som finns till höger i körriktningen
    public boolean rightIsClear() {
        int row = monsterLocation.getRow();
        int col = monsterLocation.getCol();
        if (direction == NORTH)
            col = col +1;
        else if (direction == SOUTH)
            col = col -1;
        else if (direction == EAST)
            row = row + 1;
        else
            row = row - 1;
        return level.passable[row][col];
    }//frontIsClear

    public boolean[] wallCheck(){
        boolean[] whatWay = {false,false,false};
        if (frontIsClear())
            whatWay[0] = true;
        if(leftIsClear())
            whatWay[1] = true;
        if(rightIsClear())
            whatWay[2] = true;
        return whatWay;
    }
    public int directionPlanner(){
        boolean[] whatWay;
        whatWay = wallCheck();
        int t=0;
        int r;
        Random random = new Random();
        r = random.nextInt(3);
        System.out.println("Skriv ut r: "+r);
        for(int i = 0;i < 3;i++) {
            if (whatWay[i]) {
                t = r;
            }
        }
        //System.out.println(t);
        return t;
    }
    public void move(){
        int row = monsterLocation.getRow();
        int col = monsterLocation.getCol();
        Position newPosition;
        if (direction == NORTH)//up
            newPosition = new Position(row - 1, col);
        else if (direction == SOUTH)//down
            newPosition = new Position(row + 1, col);
        else if (direction == WEST)//right
            newPosition = new Position(row, col - 1);
        else//left
            newPosition = new Position(row, col + 1);
        monsterLocation = newPosition;
    }
    public void turnLeft() {
        if (direction == NORTH) {
            direction = WEST;
        } else if (direction == SOUTH) {
            direction = EAST;
        } else if (direction == WEST) {
            direction = SOUTH;
        } else {
            direction = NORTH;
        }
    }
    public void turnRight() {
        if (direction == NORTH) {
            direction = EAST;
        } else if (direction == SOUTH) {
            direction = WEST;
        } else if (direction == EAST) {
            direction = SOUTH;
        } else {
            direction = NORTH;
        }
    }//turnRight

    public void setDirection(int direction){
        this.direction = direction;
    }
    public int getDirection(){
        return this.direction;
    }
    public boolean getIsAlive(){
        return alive;
    }
    public void setIsAlive(boolean death){
        alive = death;
    }
}