57 lines
2.0 KiB
Java
57 lines
2.0 KiB
Java
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package Trolleybus;
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import java.util.ArrayList;
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import java.util.Random;
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public class GenericDifficult <T extends EntityBus, U extends IDrawingDoors> {
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private ArrayList<T> Buses;
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private ArrayList<U> Doors;
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private int CntOfBuses;
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private int MaxCntOfBuses;
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private int CntOfDoors;
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private int MaxCntOfDoors;
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private int WidthOfPanel;
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private int HeightOfPanel;
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public GenericDifficult(int maxCountOfBuses, int maxCountOfDoors, int width, int height) {
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MaxCntOfBuses = maxCountOfBuses;
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MaxCntOfDoors = maxCountOfDoors;
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Buses = new ArrayList<T>(MaxCntOfBuses);
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Doors = new ArrayList<U>(MaxCntOfDoors);
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CntOfBuses = 0;
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CntOfDoors = 0;
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WidthOfPanel = width;
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HeightOfPanel = height;
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}
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//Полиморфные методы добавления в массив
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public boolean Add(T bus) {
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if (bus == null || CntOfBuses >= MaxCntOfBuses) {
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return false;
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}
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Buses.add(CntOfBuses++, bus);
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return true;
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}
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public boolean Add(U door) {
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if (door == null || CntOfDoors >= MaxCntOfDoors) {
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return false;
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}
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Doors.add(CntOfDoors++, door);
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return true;
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}
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public DrawingBus CreateObject() {
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if (CntOfBuses == 0 || CntOfDoors == 0) {
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return null;
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}
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// В массивах с дверьми и самими автобусами берём по 1 случайному элементу (необязательно с одинаковым индексом),
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// чтобы получить рандомное сочетание дверей и самого корпуса
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Random rand = new Random();
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int indexOfEntityBus = rand.nextInt(0, CntOfBuses);
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int indexOfDoor = rand.nextInt(0, CntOfDoors);
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T bus = Buses.get(indexOfEntityBus);
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U doors = Doors.get(indexOfDoor);
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return new DrawingBus(bus, doors, WidthOfPanel, HeightOfPanel);
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}
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}
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