using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
using Microsoft.Xna.Framework.Input;
using System;


class Tractor
{
    private Vector2 Position;
    private Vector2 TargetPosition;
    private Vector2 Direction;
    private int Spacing, sizeTile;
    private int Speed = 1;
    private Random r = new Random();

    public void updateSizing(int newSize, int newSpacingSize)
    {
        Spacing = newSpacingSize;
        sizeTile = newSize;
    }
    private void updateDirection(Vector2 Size) /// Runs when the tractor reaches a tile
    {
        Vector2 DeltaPosition = TargetPosition - Position;
        if (DeltaPosition.X == 0)
        {
            if (DeltaPosition.Y == 0)
            {
                Direction = new Vector2(0, 0);
                setTargetPosition(new Vector2(r.Next(0, (int)Size.X), r.Next(0, (int)Size.Y)) * (sizeTile + Spacing)); //Sets a random Target
                /// Do Nothing - is currently located on the targetPos
                return;
            }
            else if (DeltaPosition.Y > 0)
            {
                Direction = new Vector2(0, 1);
                return;
            }
            else if (DeltaPosition.Y < 0)
            {
                Direction = new Vector2(0, -1);
                return;
            }
        }
        else if (DeltaPosition.X > 0)
        {
            Direction = new Vector2(1, 0);
            return;
        }
        else if (DeltaPosition.X < 0)
        {
            Direction = new Vector2(-1, 0);
            return;
        }

    }

    public void updatePosition(Vector2 Size) /// updates the position
    {
        for (int i = 0; i < Speed; i++)
        {
            updateDirection(Size);
            Position = Position + Direction;
        }


    }



    public Vector2 getPos()
    {
        return Position;
    }
    
    public void increaseSpeed()
    {
        Speed++;
    }
    
    public void decreaseSpeed()
    {
        if (Speed > 0)
        {
            Speed--;
        }

    }

    private void setTargetPosition(Vector2 newPosition) /// sets the TargetPosition once it reaches its destination
    {
        TargetPosition = newPosition;
    }
    public void setSpeed(int newSpeed)
    {
        Speed = newSpeed;
    }

    public int getSpeed()
    {
        return Speed;
    }

    public Vector2 getTargetPosition()
    {
        return TargetPosition;
    }
}