PIbd21.LyovushkinaA.A.Container_ship.Complicated/ShipGenericCollection.java

import java.awt.image.BufferedImage;
import java.awt.Color;
import java.awt.Graphics2D;

public class ShipGenericCollection<T extends DrawingShip, U extends IMoveableObject>
{
    private int _pictureWidth;
        
    private int _pictureHeight;
       
    private int _placeSizeWidth = 210;
        
    private int _placeSizeHeight = 90;
        
    private SetGeneric<T> _collection;
        
    public ShipGenericCollection(int picWidth, int picHeight)
    {
        int width = picWidth / _placeSizeWidth;
        int height = picHeight / _placeSizeHeight;
        _pictureWidth = picWidth;
         _pictureHeight = picHeight;
        _collection = new SetGeneric<T>(width * height);
    }
        
    public int Add(T obj)
    {
        if (obj == null)
        {
            return -1;
        }
       return _collection.Insert(obj);
    }
        
    public T remove(int pos)
    {
        T obj = _collection.Get(pos);
        if (obj != null)
        {
            _collection.Remove(pos);
        }
        return obj;
    }
        
    public U GetU(int pos)
    {
        return (U)_collection.Get(pos).GetMoveableObject();
    }
        
    public BufferedImage ShowShips()
    {
        BufferedImage bmp = new BufferedImage(_pictureWidth, _pictureHeight, BufferedImage.TYPE_INT_ARGB);
        Graphics2D gr = bmp.createGraphics();
        DrawBackground(gr);
        DrawObjects(gr);
        gr.dispose();
        return bmp;
    }
        
    private void DrawBackground(Graphics2D gr)
    {
        gr.setColor(Color.BLACK);
        for (int i = 0; i < _pictureWidth / _placeSizeWidth; i++)
        {
            for (int j = 0; j < _pictureHeight / _placeSizeHeight + 1; ++j)
                {//линия рамзетки места
                    gr.drawLine(i * _placeSizeWidth, j * _placeSizeHeight, i * _placeSizeWidth + _placeSizeWidth / 2, j * _placeSizeHeight);
                }
            gr.drawLine(i * _placeSizeWidth, 0, i * _placeSizeWidth, _pictureHeight / _placeSizeHeight * _placeSizeHeight);
        }
    }
        
    private void DrawObjects(Graphics2D gr)
    {
         int i = 0;
        for (T ship: _collection.GetShips(100))
        {
           
            if (ship != null)
            {
                ship.SetPosition(((_collection._maxCount -i - 1) % (_pictureWidth / _placeSizeWidth)) * _placeSizeWidth, (_collection._maxCount - i-1) / (_pictureWidth / _placeSizeWidth) * _placeSizeHeight);
                ship.DrawShip(gr);
            }
            i++;
        }
    }
    
}