我正在编写一个选择您自己的冒险游戏，其中每个游戏状态都是不同的屏幕类别。当您之前单击屏幕上的相应按钮时，您会创建该类的一个实例（将显示该实例）（想想亨利火柴人游戏，但要简单得多）。我不知道还能怎么做；这是我的第一个真正的游戏。
这是我迄今为止所上的两门课：
public class MarketScreen implements Screen {
final Heist game;
private final Texture backgroundImage;
private final Music backgroundMusic;
private Stage stage;
private Table table;
private TextButton button1;
private TextButton button2;
private TextArea text;
private OrthographicCamera camera;
public MarketScreen(final Heist game) {
this.game = game;
//load images (64x64 pixels)
backgroundImage = new Texture("background.jpeg");
//load sound effects and music
backgroundMusic = Gdx.audio.newMusic(Gdx.files.internal("ironLung.mp3"));
backgroundMusic.setLooping(true);
//create camera and spriteBatch
camera = new OrthographicCamera();
camera.setToOrtho(false, 800, 480);
//stage setup
stage = new Stage(new ScreenViewport());
Gdx.input.setInputProcessor(stage);
//table setup
table = new Table();
table.setFillParent(true);
stage.addActor(table);
table.pad(50);
table.padTop(100);
//button and text box setup
String dialogue = "You turn around from the market stall to the sound of your name at a shout. It's your long-time friend and " +
" fellow bounty hunter, Wesdru. There's an urgency to her mannerisms that raises your heart rate immediately, " +
"your hand flying to your sword pommel at your hip. 'It's Lorena. Dras has her.' Keegin Dras, this lawless town's " +
"most feared crime boss. 'What,' you intone breathlessly. 'She doesn't stoop to meddle with cowboys!' Wesdru grabs " +
"your shoulders roughly and makes brutal eye contact. 'I don't know why. But I do know we have to go NOW. You and I " +
"both know how cruel Dras can be.'\n\n\n\nYou only have enough time to buy one thing from the market. What do you take?";
text = new TextArea(dialogue, Heist.skin);
table.add(text).grow().colspan(2);
table.row();
button1 = new TextButton("Modded Grenade", Heist.skin);
table.add(button1).width(200).expand();
button2 = new TextButton("Lockpick", Heist.skin);
table.add(button2).width(100).expand();
button1.addListener(new ChangeListener() {
@Override
public void changed(ChangeEvent event, Actor actor) {
game.hasGrenade = true;
game.setScreen(new OutsideScreen(game));
dispose();
}
});
button2.addListener(new ChangeListener() {
@Override
public void changed(ChangeEvent event, Actor actor) {
game.hasLockpick = true;
game.setScreen(new OutsideScreen(game));
dispose();
}
});
}
@Override
public void show() { //called when screen is shown.
backgroundMusic.play();
}
@Override
public void render(float delta) {
ScreenUtils.clear(1, 0, 0, 1);
game.batch.begin();
game.batch.draw(backgroundImage, 0, 0);
game.batch.end();
stage.draw();
}
@Override
public void resize(int width, int height) {
}
@Override
public void pause() {
}
@Override
public void resume() {
}
@Override
public void hide() {
Gdx.input.setInputProcessor(null);
}
@Override
public void dispose() {
game.batch.dispose();
backgroundImage.dispose();
backgroundMusic.dispose();
stage.dispose();
}
}
public class OutsideScreen implements Screen {
final Heist game;
private final Texture backgroundImage;
private final Music backgroundMusic;
private TextButton button1;
private TextButton button2;
private TextButton button3;
private TextArea text;
private Stage stage;
private Table table;
private OrthographicCamera camera;
public OutsideScreen(final Heist game) {
this.game = game;
//load images (64x64 pixels)
backgroundImage = new Texture("state2.png");
//load sound effects and music
backgroundMusic = Gdx.audio.newMusic(Gdx.files.internal("Doom City.mp3"));
backgroundMusic.setLooping(true);
//create camera and spriteBatch
camera = new OrthographicCamera();
camera.setToOrtho(false, 800, 480);
//stage setup
stage = new Stage(new ScreenViewport());
Gdx.input.setInputProcessor(stage);
//table setup
table = new Table();
table.setFillParent(true);
stage.addActor(table);
table.pad(50);
table.padTop(100);
//button and text box setup
String dialogue = "Hello";
text = new TextArea(dialogue, Heist.skin);
table.add(text).grow().colspan(3);
table.row();
button1 = new TextButton("Storm them", Heist.skin);
table.add(button1).width(150).expand();
button2 = new TextButton("Sweet talk them", Heist.skin);
table.add(button2).width(150).expand();
button3 = new TextButton("Climb the building", Heist.skin);
table.add(button3).width(175).expand();
//STORM THEM
button1.addListener(new ChangeListener() {
@Override
public void changed(ChangeEvent event, Actor actor) {
game.hasGrenade = true;
// game.setScreen(new NEXTSCREEN(game));
// dispose();
}
});
//SWEET TALK THEM
button2.addListener(new ChangeListener() {
@Override
public void changed(ChangeEvent event, Actor actor) {
game.hasLockpick = true;
// game.setScreen(new NEXTSCREEN(game));
// dispose();
}
});
//CLIMB THE BUILDING
button3.addListener(new ChangeListener() {
@Override
public void changed(ChangeEvent event, Actor actor) {
game.hasLockpick = false;
game.hasGrenade = false;
}
});
}
@Override
public void show() {
backgroundMusic.play();
}
@Override
public void render(float delta) {
ScreenUtils.clear(1, 0, 0, 1);
game.batch.begin();
game.batch.draw(backgroundImage, 0, 0);
game.batch.end();
stage.draw();
}
@Override
public void resize(int width, int height) {
}
@Override
public void pause() {
}
@Override
public void resume() {
}
@Override
public void hide() {
Gdx.input.setInputProcessor(null);
}
@Override
public void dispose() {
backgroundImage.dispose();
backgroundMusic.dispose();
stage.dispose();
}
}
每次我单击 MarketScreen 实例中的按钮时，下一个屏幕就会崩溃。有时它会持续大约 15 秒，然后在没有背景图像的情况下再运行几次（只是在渲染方法中显示默认的屏幕填充），然后崩溃，但它总是崩溃。错误消息始终以 “Java 运行时环境检测到致命错误： SIGSEGV (0xb) 位于 pc=0x000000010d7fa85c，pid=22079，tid=23555 " 我认为这描述了通常由内存泄漏引起的分段错误。
可能是什么问题？为什么它会以不同的速度崩溃？
我最初将 TextButton、Stage、Table 和其他对象作为游戏属性，并简单地更改了它们在每个屏幕中的文本和排列，但我认为 Stage 可能是针对特定类编写的，所以我重构为每个屏幕类创建自己的对象。现在游戏通常崩溃速度变慢，但仍然会崩溃。
我认为你创造了意大利面。
错误行：
game.setScreen(new OutsideScreen(game));
描述：每次单击第二个线程时都会创建新类。然后在第一个（渲染）线程中进行绘制。竞赛发生在 2 个线程之间，天知道接下来会发生什么。
修复： 在 create() 方法（init）中调用它
OutsideScreen os = new OutsideScreen(game);
NEXTSCREEN ns = new NEXTSCREEN(game);
//to swap
game.setScreen(ns);
game.setScreen(os);