import java.awt.*;

public class CruiserGenericCollection<T extends DrawingCruiser, U extends IMoveableObject> {
    private int _pictureWidth;

    private int _pictureHeight;

    private int _placeSizeWidth = 210;

    private int _placeSizeHeight = 90;

    private SetGeneric<T> _collection;
    public CruiserGenericCollection(int picWidth, int picHeight)
    {
        int width = picWidth / _placeSizeWidth;
        int height = picHeight / _placeSizeHeight;
        _pictureWidth = picWidth;
        _pictureHeight = picHeight;
        _collection = new SetGeneric<T>(width * height);
    }
    public int plus(CruiserGenericCollection<T, U> collect, T obj)
    {
        if (obj == null)
        {
            return -1;
        }
        return collect._collection.Insert(obj);
    }
    public boolean minus(CruiserGenericCollection<T, U> collect, int pos)
    {
        T obj = collect._collection.Get(pos);
        if (obj != null)
        {
            collect._collection.Remove(pos);
        }
        return true;
    }
    public U GetU(int pos)
    {
        T ans = _collection.Get(pos);
        if(ans == null)
            return null;
        return (U)ans.GetMoveableObject();
    }

    public void ShowCars(Graphics gr)
    {
        DrawBackground(gr);
        DrawObjects(gr);
    }
    private void DrawBackground(Graphics g)
    {
        for (int i = 0; i < _pictureWidth / _placeSizeWidth; i++)
        {
            for (int j = 0; j < _pictureHeight / _placeSizeHeight +
                    1; ++j)
            {//линия рамзетки места
                g.drawLine( i * _placeSizeWidth, j *
                        _placeSizeHeight, i * _placeSizeWidth + _placeSizeWidth / 2, j *
                        _placeSizeHeight);
            }
            g.drawLine(i * _placeSizeWidth, 0, i *
                    _placeSizeWidth, _pictureHeight / _placeSizeHeight * _placeSizeHeight);
        }
    }
    private void DrawObjects(Graphics g)
    {
        DrawingCruiser car;
        int numPlacesInRow = _pictureWidth / _placeSizeWidth;
        for (int i = 0; i < _collection.Count(); i++)
        {
            // TODO получение объекта
            // TODO установка позиции
            // TODO прорисовка объекта
            car = _collection.Get(i);
            if (car != null)
            {
                car.SetPosition((i % numPlacesInRow) * _placeSizeWidth + _placeSizeWidth / 20, _placeSizeHeight * (i / numPlacesInRow) + _placeSizeHeight / 10);
                car.DrawTransport(g);

            }
        }
    }

}