package laba1Loco;

import java.awt.*;
import java.util.*;
import javax.swing.*;
import javax.swing.Timer;
import java.awt.event.*;

public class DrawingTrain {
    public IMoveableObject GetMoveableObject() { return new DrawningObjectTrain(this);}

    protected IWheelDrawing wheelDrawing;
    /// <summary>
    /// Класс-сущность
    /// </summary>
    public EntityTrain EntityTrain;
    /// <summary>
    /// Ширина окна
    /// </summary>
    public  int _pictureWidth;
    /// <summary>
    /// Высота окна
    /// </summary>
    public  int _pictureHeight;
    /// <summary>
    /// Левая координата прорисовки локомотива
    /// </summary>
    protected int _startPosX;
    /// <summary>
    /// Верхняя кооридната прорисовки локомотива
    /// </summary>
    protected int _startPosY;
    /// <summary>
    /// Ширина прорисовки локомотива
    /// </summary>
    protected int _locoWidth = 83;
    /// <summary>
    /// Высота прорисовки локомотива
    /// </summary>
    protected int _locoHeight = 41;
    /// <summary>
    /// Инициализация свойств
    /// </summary>
    /// <param name="speed">Скорость</param>
    /// <param name="weight">Вес</param>
    /// <param name="bodyColor">Цвет кузова</param>
    /// <param name="width">Ширина картинки</param>
    /// <param name="height">Высота картинки</param>
    public DrawingTrain(int speed, double weight, Color bodyColor, int _numWheel, int width, int height)
    {
        _pictureWidth = width;
        _pictureHeight = height;
        if (_pictureHeight < _locoHeight || _pictureWidth < _locoWidth)
            return;
        EntityTrain = new EntityTrain(speed, weight, bodyColor, _numWheel);
        Random random = new Random();
        switch(random.nextInt(0, 3)){
            case 0:
                wheelDrawing = new WheelDrawingSimple();
                break;
            case 1:
                wheelDrawing = new WheelDrawingBalls();
                break;
            case 2:
                wheelDrawing = new WheelDrawingDavidStar();
                break;
            default:
                wheelDrawing = new WheelDrawingSimple();
                break;
        }
        wheelDrawing.setNumWheel(_numWheel);
    }
    // конструктор для 3 сложной лабы
    public DrawingTrain(EntityTrain train, IWheelDrawing _wheelDrawing, int width, int height ){
        if (height < _locoHeight || width < _locoWidth)
            return;
        _pictureWidth = width;
        _pictureHeight = height;
        EntityTrain = train;
        wheelDrawing = _wheelDrawing;
        wheelDrawing.setNumWheel(EntityTrain.numWheel);
    }
    /// <summary>
    /// Установка позиции
    /// </summary>
    /// <param name="x">Координата X</param>
    /// <param name="y">Координата Y</param>
    public void SetPosition(int x, int y)
    {
        _startPosX = Math.min(x, _pictureWidth - _locoWidth);
        _startPosY = Math.min(y, _pictureHeight - _locoHeight);
    }
    /// <summary>
    /// Координата X объекта
    /// </summary>
    public int GetPosX (){return  _startPosX;}
    /// <summary>
    /// Координата Y объекта
    /// </summary>
    public int GetPosY (){return _startPosY;}
    /// <summary>
    /// Ширина объекта
    /// </summary>
    public int GetWidth (){return  _locoWidth;}
    /// <summary>
    /// Высота объекта
    /// </summary>
    public int GetHeight (){return  _locoHeight;}
    /// <summary>
    /// Проверка, что объект может переместится по указанному направлению
    /// </summary>
    /// <param name="direction">Направление</param>
    /// <returns>true - можно переместится по указанному направлению</returns>
    public boolean CanMove(Direction direction)
    {
        if (EntityTrain == null)
        {
            return false;
        }
        switch (direction)
        {
            case Left:
                return _startPosX - EntityTrain.Step > 0;
            case Right:
                return _startPosX + _locoWidth + EntityTrain.Step < _pictureWidth;
            case Up:
                return _startPosY - EntityTrain.Step > 0;
            case Down:
                return _startPosY + _locoHeight + EntityTrain.Step < _pictureHeight;
            default:
                return false;
        }
    }
    /// <summary>
    /// Изменение направления перемещения
    /// </summary>
    /// <param name="direction">Направление</param>
    public void MoveTransport(Direction direction)
    {
        if (!CanMove(direction) || EntityTrain == null)
        {
            return;
        }
        switch (direction)
        {
            //влево
            case Left:
                _startPosX -= (int)EntityTrain.Step;
                break;
            //вверх
            case Up:
                _startPosY -= (int)EntityTrain.Step;
                break;
            // вправо
            case Right:
                _startPosX += (int)EntityTrain.Step;
                break;
            //вниз
            case Down:
                _startPosY += (int)EntityTrain.Step;
                break;
        }
    }
    
    /// <summary>
        /// Прорисовка объекта
        /// </summary>
        /// <param name="g"></param>
        public void DrawTransport(Graphics2D g2d)
        {

            if (EntityTrain == null)
            {
                return;
            }

            // body
            g2d.setColor(EntityTrain.BodyColor);
            g2d.drawPolyline(new int[]{
                _startPosX + 8, _startPosX + 79, _startPosX + 79, _startPosX + 4, _startPosX + 4, _startPosX + 8,
            }, new int[]{
                _startPosY+10, _startPosY+10, _startPosY+32, _startPosY+32, _startPosY+20, _startPosY+10
            }, 6);
            g2d.drawPolyline(new int[]{
                _startPosX + 4, _startPosX + 29, _startPosX + 29, _startPosX + 37, _startPosX + 37, _startPosX + 79, _startPosX + 37, _startPosX + 37, _startPosX + 29, _startPosX + 29,
            }, new int[]{
                _startPosY+21, _startPosY+21, _startPosY+14, _startPosY+14, _startPosY+21, _startPosY+21, _startPosY+21, _startPosY+29, _startPosY+29, _startPosY+21
            }, 10);

            // trucks
            g2d.fillPolygon(new int[]{
_startPosX + 0,_startPosX + 5,_startPosX + 32,_startPosX + 36,
            }, new int[]{
_startPosY+37,_startPosY+33,_startPosY+33,_startPosY+37
            }, 4);
            g2d.fillPolygon(new int[]{
_startPosX + 44,_startPosX + 49,_startPosX + 76,_startPosX + 80,
            }, new int[]{
_startPosY+37,_startPosY+33,_startPosY+33,_startPosY+37
            }, 4);

            //back
            g2d.fillPolygon(new int[]{
_startPosX + 79,_startPosX + 82,_startPosX + 82,_startPosX + 79,
            }, new int[]{
_startPosY+12,_startPosY+12,_startPosY+30,_startPosY+30
            }, 4);


            //windows
            g2d.setColor(Color.BLUE);
            g2d.drawRect(_startPosX + 10, _startPosY + 12, 6, 7);
            g2d.drawRect(_startPosX + 19, _startPosY + 12, 6, 7);
            g2d.drawRect(_startPosX + 72, _startPosY + 12, 6, 7);

            //wheels
            wheelDrawing.Draw(_startPosX, _startPosY, false, EntityTrain.BodyColor, g2d);
        }
}