import java.util.Random;

public class DrawingEntities <T extends  EntityShip,U extends IAdditionalDrawingObject>{
    public T[] _entities;
    public U[] _decks;
    int entitiesCount = 0;
    int decksCount = 0;
    String  indx;
    String indy;
    public DrawingEntities(int countE,int countD)
    {
        _entities = (T[]) new EntityShip[countE];
        _decks = (U[]) new IAdditionalDrawingObject[countD];
    }
    public int Insert(T ship)
    {
        if(entitiesCount<_entities.length){
            _entities[entitiesCount] = ship;
            entitiesCount++;
            return entitiesCount-1;
        }
        return -1;
    }
    public int Insert(U deck)
    {
        if(decksCount<_decks.length){
            _decks[decksCount] = deck;
            decksCount++;
            return decksCount-1;
        }
        return -1;
    }
    public void SetIndexs(int ind1, int ind2)
    {
        indx=Integer.toString(ind1);
        indy=Integer.toString(ind2);
    }
    public DrawingShip CreateShip()
    {
        Random rnd = new Random();
        int indEnt=0;
        int indDeck=0;
        if(entitiesCount-1!=0 & decksCount-1!=0)
        {
            indDeck=rnd.nextInt(0,decksCount-1);
            indEnt=rnd.nextInt(0,entitiesCount-1);
        }
        T ship=(T)_entities[indEnt];
        U deck=(U)_decks[indDeck];
        SetIndexs(indEnt,indDeck);
        if(ship instanceof EntityContainerShip)
        {
            return new DrawingContainerShip(ship,deck);
        }
        return new DrawingShip(ship,deck);
    }
}