03读懂老师打印的 UML

141public class Battle {
152    private final Fighter player;
16    private final Fighter enemy;
17    private final Inventory inventory;
18    private final EnemyStrategy enemyStrategy;
19    private final Random random;
20    private final List<String> log = new ArrayList<>();
21    private boolean finished = false;
22    private boolean playerWon = false;
⋯ 省略第 23–24 行
253    public Battle(Fighter player, Fighter enemy, Inventory inventory) {
⋯ 省略第 26–29 行
303    public Battle(Fighter player, Fighter enemy, Inventory inventory,
31                  EnemyStrategy enemyStrategy, Random random) {
⋯ 省略第 32–40 行
41    public Fighter getPlayer() {
⋯ 省略第 42–44 行
45    public Fighter getEnemy() {
⋯ 省略第 46–48 行
49    public Inventory getInventory() {
⋯ 省略第 50–52 行
53    public boolean isFinished() {
⋯ 省略第 54–56 行
57    public boolean hasPlayerWon() {
⋯ 省略第 58–61 行
62    public List<String> getLog() {
⋯ 省略第 63–68 行
694    public void playTurn(Skill playerSkill) {
⋯ 省略第 70–100 行
101    public void useItem(Item item) {
⋯ 省略第 102–115 行
116    private void endTurn() {
⋯ 省略第 117–133 行
134    private void finish(boolean playerWon) {

18public class Fighter {
191    private static final int DAMAGE_SCALE = 50;
20 
21    private final Mokepon mokepon;
22    /* The stats at the start of this battle, after the terrain effect. */
23    private final Map<Stat, Integer> startingStats = new EnumMap<>(Stat.class);
24    /* The stats right now. They only change through the methods below. */
252    private final Map<Stat, Integer> stats = new EnumMap<>(Stat.class);
26    private final List<StatusEffect> effects = new ArrayList<>();
⋯ 省略第 27–30 行
313    public Fighter(Mokepon mokepon, TerrainEffect terrainEffect) {
⋯ 省略第 32–51 行
524    public int getStat(Stat stat) {
⋯ 省略第 53–81 行
825    public void takeDamage(int amount) {
⋯ 省略第 83–94 行
95    public int raiseStat(Stat stat, int amount) {
⋯ 省略第 96–117 行
1186    public int calculateDamage(Fighter target, double power) {

48        Mokepon mokepon = player.getMokepon();
49        int row = 0;
50        addRow(grid, row++, "Mokepon:", createLabel(mokepon.getName(), nameFont));
511        for (Stat stat : Stat.values()) {
52            String value = String.valueOf(mokepon.getStat(stat));
531            addRow(grid, row++, stat.getLabel() + ":", createLabel(value, numberFont));
54        }

25    /* The position one tile away in the given direction. */
26    public Position move(Direction direction) {
271        return new Position(x + direction.getXChange(), y + direction.getYChange());
28    }

9public class Player {
101    private final Mokepon mokepon;
11    private final Inventory inventory;
12    private Position position;
13    /* The tile before the last move, so the player can run back to it. */
14    private Position previousPosition;
15    private int fightsWon = 0;
16 
172    public Player(Mokepon mokepon, Position startPosition, Inventory inventory) {
⋯ 省略第 18–23 行
243    public Mokepon getMokepon() {
⋯ 省略第 25–27 行
28    public Inventory getInventory() {
⋯ 省略第 29–31 行
32    public Position getPosition() {
⋯ 省略第 33–35 行
36    public int getFightsWon() {
⋯ 省略第 37–39 行
404    void moveTo(Position newPosition) {
⋯ 省略第 41–45 行
46    void moveBack() {
⋯ 省略第 47–49 行
50    void addWin() {

65    /* Move the player one tile, then let every object on the new tile react. */
661    public void move(Direction direction) {
67        if (!canMove(direction)) {
68            return;
69        }
702        player.moveTo(player.getPosition().move(direction));
71        notifyListeners(listener -> listener.onPlayerMoved());

12public abstract class GameScreen {
13    private final GameNavigator navigator;
14    private final Pane view = new Pane();
15    /* The dialog on top of the screen, or null when there is none. */
16    private ModalDialog dialog;
17 
181    protected GameScreen(GameNavigator navigator) {
⋯ 省略第 19–23 行
24    public Pane getView() {
⋯ 省略第 25–31 行
322    public final void handleKeyPress(KeyEvent event) {
⋯ 省略第 33–41 行
42    public boolean canRunAway() {
⋯ 省略第 43–46 行
47    public boolean canReturnToMainMenu() {
⋯ 省略第 48–51 行
523    protected void handleKey(KeyEvent event) {
⋯ 省略第 53–54 行
55    protected GameNavigator getNavigator() {
⋯ 省略第 56–59 行
604    protected void addToView(Node... nodes) {
⋯ 省略第 61–63 行
64    protected void addToView(List<Node> nodes) {
⋯ 省略第 65–68 行
69    protected void showDialog(ModalDialog newDialog) {
⋯ 省略第 70–75 行
76    protected void closeDialog() {
⋯ 省略第 77–82 行
83    protected boolean isDialogOpen() {
⋯ 省略第 84–87 行
88    protected ModalDialog createGameEndDialog(String heading) {

111public class LabelledStatBar extends StatBar {
⋯ 省略第 12–16 行
17    public LabelledStatBar(double x, double y, String colour, int current, int max) {
18        super(x, y, colour, current, max);
19        numbers = UiStyle.createLabel(current + SEPARATOR + max,
20                UiStyle.createMonospaceFont(FontWeight.BOLD, FONT_SIZE));
21        numbers.setLayoutX(x);
22        numbers.setLayoutY(y);
232        numbers.setPrefSize(WIDTH, HEIGHT);
24        numbers.setAlignment(Pos.CENTER);
25    }

10public class SkillCatalogue {
111    private static final List<Skill> SKILLS = List.of(
12            new Bite(), new Tackle(), new Lance(), new Stun(), new PocketSand(),
13            new Bunker(), new Aim(), new Swole(), new Nimble(), new Wait());
14 
15    /* Find a skill by its exact, case-sensitive name. */
162    public static Skill find(String name) {
17        for (Skill skill : SKILLS) {
18            if (skill.getName().equals(name)) {
19                return skill;
20            }
21        }
22        throw new IllegalArgumentException("Unknown skill: " + name);
23    }

15public class UiStyle {
161    public static final int GAME_WIDTH = 1280;
171    public static final int GAME_HEIGHT = 768;
182    public static final String SCROLL_FILE = "assets/scroll.png";
19 
203    private static final String BACKGROUND_FILE = "assets/bg.png";
21    private static final String FONT_FILE = "assets/GrenzeGotisch-Black.ttf";
⋯ 省略第 22–65 行
66    public static ImageView createBackground() {
673        return createImageView(loadImage(BACKGROUND_FILE), 0, 0, GAME_WIDTH, GAME_HEIGHT);
68    }

9public abstract class Skill {
10    private final String name;
11    private final int energyCost;
⋯ 省略第 12–13 行
14    protected Skill(String name, int energyCost) {
⋯ 省略第 15–26 行
27    /* Template Method: pay the energy cost first (even if an attack then misses),
28     * then apply the effect. Returns the message for the battle log.
29     */
302    public final String use(Fighter user, Fighter target, Random random) {
31        user.spendEnergy(energyCost);
32        return applyEffect(user, target, random);
33    }
34 
35    /* Each subclass decides what the skill actually does. */
361    protected abstract String applyEffect(Fighter user, Fighter target, Random random);

9    private static final int ENERGY_COST = -2;
10    private static final List<String> MESSAGES = List.of(
11            "\tThey get a little more bored.",
122            "\tThey wonder if this is a good strategy.",
131            "\tThey think about what they will have for dinner.");
⋯ 省略第 14–18 行
19    @Override
20    protected String applyEffect(Fighter user, Fighter target, Random random) {
21        return MESSAGES.get(random.nextInt(MESSAGES.size()));
22    }

4public class Bite extends AttackSkill {

9public class RandomEnemyStrategy implements EnemyStrategy {

241public class OverworldScreen extends GameScreen implements OverworldListener {
⋯ 省略第 25–71 行
72    @Override
732    public void onPlayerMoved() {
⋯ 省略第 74–78 行
79    @Override
802    public void onEncounter(Encounter encounter) {
⋯ 省略第 81–95 行
96    @Override
972    public void onItemCollected(Item item) {
⋯ 省略第 98–101 行
102    @Override
1032    public void onEncounterWon(Mokepon enemy) {
⋯ 省略第 104–107 行
108    @Override
1092    public void onExitReached(int fightsWon) {
⋯ 省略第 110–114 行
115    @Override
1163    protected void handleKey(KeyEvent event) {

110    /* Called by a mystery box when the player steps onto it. A box can only be collected once. */
111    void collect(MysteryBox box) {
112        objects.remove(box);
113        player.getInventory().add(box.getItem());
1141        notifyListeners(listener -> listener.onItemCollected(box.getItem()));
115    }
⋯ 省略第 116–121 行
122    /* Send the same message to every registered listener.
123     * The lambda says which listener method to call.
124     */
125    private void notifyListeners(Consumer<OverworldListener> message) {
126        for (OverworldListener listener : listeners) {
1272            message.accept(listener);
128        }
129    }

96    @Override
97    public void onItemCollected(Item item) {
981        statusBar.setText("You picked up a " + item.getName() + "!");
99        update();
100    }
⋯ 省略第 101–132 行
133    /* Make the map, the scroll and the buttons match the world. */
134    private void update() {
135        mapView.update();
1362        statsScroll.update();

15    private final MenuBar menuBar;
161    private final MenuItem runAway;
172    private final MenuItem mainMenu;
⋯ 省略第 18–27 行
283        MenuItem exit = new MenuItem("Exit");
⋯ 省略第 29–45 行
46    public void update(GameScreen screen) {
471        runAway.setDisable(!screen.canRunAway());
482        mainMenu.setDisable(!screen.canReturnToMainMenu());
49    }