你好，先生们，我已经开始开发一款使用大量屏幕(介绍屏幕、闪屏、预览屏幕、主菜单屏幕等)的游戏，并且遇到了以下一些问题:
从一个屏幕切换到另一个屏幕有时会 react 迟钝或出现错误，有时会一遍又一遍地重复相同的屏幕。 我已经回收了一个后退按钮，我计划在不同的窗口中使用它，但它只在一个窗口中可见，而在另一个窗口中可见。 我将我的屏幕实现为 SCREENS，这是否与抽象屏幕类有任何关系，因为正如我在不同的示例代码中看到的那样，它们将屏幕扩展到实现屏幕的某个类。
我对这部分很困惑，我希望能找到解决这个问题的合适方法。
有没有一种方法可以让我正确地导航或使它对我的屏幕响应更快？它是否有助于提高游戏的性能我会创建一个屏幕管理器？屏幕管理器应该有哪些实例？
这是我的主菜单屏幕代码，遇到后退按钮问题。
public class MainMenuScreen implements Screen {
public static final String LOG = "MainMenu Class";
private OrthographicCamera camera;
private SpriteBatch batch;
private Texture texture = Assets.bgmenu;
private Sprite sprite;
private static Stage stage;
private static DugManMainClass game;
private TextButton tb;
private TextButton tb2;
private TextButton tb3;
private TextButton tb4;
private TextButton tb5;
private TextButton load;
private TextButton newgame;
private TextButton back;
private TextButton saveslot1;
private TextButton saveslot2;
private TextButton saveslot3;
private TextButton loadslot1;
private TextButton loadslot2;
private TextButton loadslot3;
private Window ww;
private Window storywindow;
private Window newgamesaveslotwindow;
private Window loadgameloadslotwindow;
private static float time = 0;
private float temp;
public MainMenuScreen(DugManMainClass game)
{
this.game = game;
}
@Override
public void dispose() {
Gdx.app.log(MainMenuScreen.LOG, "Disposing...");
batch.dispose();
texture.dispose();
stage.dispose();
}
@Override
public void resize(int width, int height) {
}
@Override
public void pause() {
}
@Override
public void resume() {
}
@Override
public void render(float delta) {
Gdx.app.log(MainMenuScreen.LOG, "Rendering...");
temp += Gdx.graphics.getDeltaTime();
while(temp>1.0f/60.0f)
{
MainMenuScreen.tick();
temp -=1.0f/60.0f;
}
Gdx.gl.glClearColor(1, 1, 1, 1);
Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);
stage.act(Gdx.graphics.getDeltaTime());
batch.setProjectionMatrix(camera.combined);
batch.begin();
batch.disableBlending();
sprite.draw(batch);
batch.end();
batch.begin();
batch.enableBlending();
stage.draw();
batch.end();
// TODO Auto-generated method stub
}
@Override
public void show() {
Gdx.app.log(MainMenuScreen.LOG, "Showing SplashScreen...");
float w = Gdx.graphics.getWidth();
float h = Gdx.graphics.getHeight();
camera = new OrthographicCamera(1, h/w);
//(x,y)
//camera = new
batch = new SpriteBatch();
stage = new Stage(w,h,true);
Assets.bgsound.play(1f);
Gdx.input.setInputProcessor(stage);
stage.clear();
texture.setFilter(TextureFilter.Linear, TextureFilter.Linear);
TextureRegion region = new TextureRegion(texture, 0, 0, texture.getWidth(), texture.getHeight());
sprite = new Sprite(region);
sprite.setSize(1f, 1f * sprite.getHeight() / sprite.getWidth());
sprite.setOrigin(sprite.getWidth()/2, sprite.getHeight()/2);
sprite.setPosition(-sprite.getWidth()/2, -sprite.getHeight()/2);
Skin skin = new Skin(Assets.atlas);
TextButtonStyle ts = new TextButtonStyle();
ts.up = skin.getDrawable("btnpressed");
ts.down = skin.getDrawable("btnunpressed");
ts.font = Assets.menufont2;
//main menu
tb = new TextButton("Story mode", ts);
tb.padTop(5).padBottom(5).padLeft(5).padRight(5);
tb.addListener(new InputListener()
{
public boolean touchDown(InputEvent event, float x, float y,
int pointer, int button) {
return true;
}
public void touchUp(InputEvent event, float x, float y,
int pointer, int button) {
time = 0;
storywindow.setVisible(true);
ww.setVisible(false);
Assets.pressedsound.play(1f);
}
});
tb2 = new TextButton("Arcade", ts);
tb2.padTop(5).padBottom(5).padLeft(5).padRight(5);
tb2.addListener(new InputListener()
{
public boolean touchDown(InputEvent event, float x, float y,
int pointer, int button) {
return true;
}
public void touchUp(InputEvent event, float x, float y,
int pointer, int button) {
Assets.pressedsound.play(1f);
}
});
tb3 = new TextButton("Time Trial", ts);
tb3.padTop(5).padBottom(5).padLeft(5).padRight(5);
tb3.addListener(new InputListener()
{
public boolean touchDown(InputEvent event, float x, float y,
int pointer, int button) {
return true;
}
public void touchUp(InputEvent event, float x, float y,
int pointer, int button) {
time = 0;
Assets.pressedsound.play(1f);
}
});
tb4 = new TextButton("Option",ts);
tb4.padTop(5).padBottom(5).padLeft(5).padRight(5);
tb4.addListener(new InputListener()
{
public boolean touchDown(InputEvent event, float x, float y,
int pointer, int button) {
return true;
}
public void touchUp(InputEvent event, float x, float y,
int pointer, int button) {
Assets.pressedsound.play(1f);
}
});
tb5 = new TextButton("Exit",ts);
tb5.padTop(5).padBottom(5).padLeft(5).padRight(5);
tb5.addListener(new InputListener()
{
public boolean touchDown(InputEvent event, float x, float y,
int pointer, int button) {
return true;
}
public void touchUp(InputEvent event, float x, float y,
int pointer, int button) {
Assets.pressedsound.play(1f);
Gdx.app.exit();
}
});
//storymode-newgame
newgame = new TextButton("New Game", ts);
newgame.padTop(5).padBottom(5).padLeft(5).padRight(5);
newgame.addListener(new InputListener()
{
public boolean touchDown(InputEvent event, float x, float y,
int pointer, int button) {
return true;
}
public void touchUp(InputEvent event, float x, float y,
int pointer, int button) {
newgamesaveslotwindow.setVisible(true);
storywindow.setVisible(false);
Assets.pressedsound.play(1f);
}
});
//newgamesaveslot
saveslot1 = new TextButton("Save slot 1", ts);
saveslot1.padTop(5).padBottom(5).padLeft(5).padRight(5);
saveslot1.addListener(new InputListener()
{
public boolean touchDown(InputEvent event, float x, float y,
int pointer, int button) {
return true;
}
public void touchUp(InputEvent event, float x, float y,
int pointer, int button) {
game.setScreen(new LoadingScreen(game));
Assets.ekek.play(1f);
Assets.bgsound.stop();
}
});
saveslot2 = new TextButton("Save slot 2", ts);
saveslot2.padTop(5).padBottom(5).padLeft(5).padRight(5);
saveslot2.addListener(new InputListener()
{
public boolean touchDown(InputEvent event, float x, float y,
int pointer, int button) {
return true;
}
public void touchUp(InputEvent event, float x, float y,
int pointer, int button) {
game.setScreen(new DugManGameScreen(game));
Assets.ekek.play(1f);
Assets.bgsound.stop();
}
});
saveslot3 = new TextButton("Save slot 3", ts);
saveslot3.padTop(5).padBottom(5).padLeft(5).padRight(5);
saveslot3.addListener(new InputListener()
{
public boolean touchDown(InputEvent event, float x, float y,
int pointer, int button) {
return true;
}
public void touchUp(InputEvent event, float x, float y,
int pointer, int button) {
game.setScreen(new DugManGameScreen(game));
Assets.ekek.play(1f);
Assets.bgsound.stop();
}
});
//storymode-loadgames
load = new TextButton("Load game", ts);
load.padTop(5).padBottom(5).padLeft(5).padRight(5);
load.addListener(new InputListener()
{
public boolean touchDown(InputEvent event, float x, float y,
int pointer, int button) {
return true;
}
public void touchUp(InputEvent event, float x, float y,
int pointer, int button) {
loadgameloadslotwindow.setVisible(true);
ww.setVisible(false);
storywindow.setVisible(false);
Assets.pressedsound.play(1f);
}
});
//loadsaveslot
loadslot1 = new TextButton("load slot 1", ts);
loadslot1 .padTop(5).padBottom(5).padLeft(5).padRight(5);
loadslot1 .addListener(new InputListener()
{
public boolean touchDown(InputEvent event, float x, float y,
int pointer, int button) {
return true;
}
public void touchUp(InputEvent event, float x, float y,
int pointer, int button) {
game.setScreen(new DugManGameScreen(game));
Assets.pressedsound.play(1f);
Assets.bgsound.stop();
}
});
loadslot2 = new TextButton("load slot 2", ts);
loadslot2 .padTop(5).padBottom(5).padLeft(5).padRight(5);
loadslot2 .addListener(new InputListener()
{
public boolean touchDown(InputEvent event, float x, float y,
int pointer, int button) {
return true;
}
public void touchUp(InputEvent event, float x, float y,
int pointer, int button) {
game.setScreen(new DugManGameScreen(game));
Assets.pressedsound.play(1f);
Assets.bgsound.stop();
}
});
loadslot3 = new TextButton("load slot 3", ts);
loadslot3 .padTop(5).padBottom(5).padLeft(5).padRight(5);
loadslot3 .addListener(new InputListener()
{
public boolean touchDown(InputEvent event, float x, float y,
int pointer, int button) {
return true;
}
public void touchUp(InputEvent event, float x, float y,
int pointer, int button) {
game.setScreen(new DugManGameScreen(game));
Assets.pressedsound.play(1f);
Assets.bgsound.stop();
}
});
back = new TextButton("back", ts);
back.padTop(5).padBottom(5).padLeft(5).padRight(5);
back.addListener(new InputListener()
{
public boolean touchDown(InputEvent event, float x, float y,
int pointer, int button) {
return true;
}
public void touchUp(InputEvent event, float x, float y,
int pointer, int button) {
if(storywindow.isVisible()==true)
{
ww.setVisible(true);
storywindow.setVisible(false);
Assets.pressedsound.play(1f);
}
else if(newgamesaveslotwindow.isVisible()==true)
{
ww.setVisible(false);
storywindow.setVisible(true);
newgamesaveslotwindow.setVisible(false);
Assets.pressedsound.play(1f);
}
else if(loadgameloadslotwindow.isVisible()==true)
{
ww.setVisible(false);
storywindow.setVisible(true);
loadgameloadslotwindow.setVisible(false);
Assets.pressedsound.play(1f);
}
}
});
WindowStyle www = new WindowStyle();
www.background = skin.getDrawable("windowmenu1");
www.titleFont = Assets.menufont2;
ww = new Window("", www);
ww.setPosition(0,0);
ww.setY(10);
ww.setX(260);
ww.defaults().spaceBottom(10);
ww.padTop(25);
ww.padLeft(50);
ww.padRight(50);
ww.row().fill().expandX();
ww.add(tb);
ww.row().fill().expandX();
ww.add(tb2);
ww.row().fill().expandX();
ww.add(tb3);
ww.row().fill().expandX();
ww.add(tb4);
ww.row().fill().expandX();
ww.add(tb5);
ww.padBottom(25);
ww.pack();
storywindow = new Window("",www);
storywindow.setPosition(0, 0);
storywindow.setY(10);
storywindow.setX(260);
storywindow.defaults().spaceBottom(10);
storywindow.padTop(25);
storywindow.padLeft(50);
storywindow.padRight(50);
storywindow.row().fill().expandX();
storywindow.add(newgame);
storywindow.row();
storywindow.add(load);
storywindow.row();
storywindow.add(back);
storywindow.padBottom(25);
storywindow.pack();
storywindow.setVisible(false);
newgamesaveslotwindow = new Window("",www);
newgamesaveslotwindow.setPosition(0, 0);
newgamesaveslotwindow.setY(10);
newgamesaveslotwindow.setX(260);
newgamesaveslotwindow.defaults().spaceBottom(10);
newgamesaveslotwindow.padTop(25);
newgamesaveslotwindow.padLeft(50);
newgamesaveslotwindow.padRight(50);
newgamesaveslotwindow.row();
newgamesaveslotwindow.add(saveslot1);
newgamesaveslotwindow.row();
newgamesaveslotwindow.add(saveslot2);
newgamesaveslotwindow.row();
newgamesaveslotwindow.add(saveslot3);
newgamesaveslotwindow.row();
newgamesaveslotwindow.add(back);
newgamesaveslotwindow.padBottom(25);
newgamesaveslotwindow.pack();
newgamesaveslotwindow.setVisible(false);
loadgameloadslotwindow = new Window("",www);
loadgameloadslotwindow.setPosition(0, 0);
loadgameloadslotwindow.setY(10);
loadgameloadslotwindow.setX(260);
loadgameloadslotwindow.defaults().spaceBottom(10);
loadgameloadslotwindow.padTop(25);
loadgameloadslotwindow.padLeft(50);
loadgameloadslotwindow.padRight(50);
loadgameloadslotwindow.row().fill().expandX();
loadgameloadslotwindow.add(loadslot1);
loadgameloadslotwindow.row().fill().expandX();
loadgameloadslotwindow.add(loadslot2);
loadgameloadslotwindow.row().fill().expandX();
loadgameloadslotwindow.add(loadslot3);
loadgameloadslotwindow.row().fill().expandX();
loadgameloadslotwindow.add(back);
loadgameloadslotwindow.padBottom(25);
loadgameloadslotwindow.pack();
loadgameloadslotwindow.setVisible(false);
stage.addActor(storywindow);
stage.addActor(newgamesaveslotwindow);
stage.addActor(loadgameloadslotwindow);
stage.addActor(ww);
}
public static void tick() {
time++;
if (time > 60 * 10) {
game.setScreen(new NewPreviewScreen(game));
Assets.bgsound.stop();
}
}
至于我遇到的屏幕无响应的其他问题，这是我的预览屏幕代码。
public class PreviewScreen implements Screen {
private static DugManMainClass game;
private SpriteBatch batch;
private OrthographicCamera camera;
private Texture tx1 = Assets.bgmenu;
private BitmapFont font = Assets.menufont2;
private final static List<String> lines = new ArrayList<String>();
private static int time = 0;
private float temp = 0;
private Sprite s;
public PreviewScreen(DugManMainClass game) {
this.game = game;
try
{
BufferedReader br = new BufferedReader(new InputStreamReader(Gdx.files.internal("previewtext.txt").read()));
String line = "";
while ((line = br.readLine()) != null) {
lines.add(line);
}
br.close();
}
catch(Exception e)
{
e.printStackTrace();
}
}
@Override
public void render(float delta) {
float w = s.getHeight();
Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);
temp += Gdx.graphics.getDeltaTime();
while(temp>1.0f/60.0f)
{
PreviewScreen.tick();
temp -=1.0f/60.0f;
s.setU(temp+1f);
s.setU2(temp+1f);
}
batch.setProjectionMatrix(camera.combined);
batch.begin();
s.draw(batch);
int yo = time / 4;
for (int y = 0; y <= s.getHeight() / 12; y++)
{
int yl = yo / 12 + 420 / 12 - y;
if (yl >= 0 && yl < lines.size())
{
font.draw(batch,lines.get(yl), (800 - 30 * 12) / 2, y * 12 + yo % 12);
}
}
batch.end();
}
@Override
public void show() {
batch = new SpriteBatch();
float w = 800;
float h = 420;
camera = new OrthographicCamera();
camera.setToOrtho(false, w, h);
tx1.setWrap(TextureWrap.Repeat, TextureWrap.Repeat);
s = new Sprite(tx1);
s.setPosition(0, 0);
Assets.bgsound3.play(1f);
// TODO Auto-generated method stub
}
@Override
public void dispose() {
Assets.dispose();
}
public static void tick() {
time++;
if (Gdx.input.isKeyPressed(Keys.ENTER) || Gdx.input.isTouched()) {
game.setScreen(new splashscreen(game));
Assets.bgsound3.stop();
}
if (time / 4 > lines.size() * 10 + 250) {
game.setScreen(new splashscreen(game));
Assets.bgsound3.stop();
}
}
当它接收到输入或完成显示文本时，它会将屏幕设置为闪屏，闪屏后它将进入介绍和主菜单，反之亦然。
最佳答案
我看到了一些令人担忧的事情，但首先我会关注手头的问题:
private static int time = 0;
您在屏幕中使用了一个静态变量，并且似乎只有在您按下 MainMenuScreen 上的按钮时才将它们重置为 0。这意味着您下次显示屏幕时，该值将导致屏幕切换，并且它将永远来回翻转(并导致很多延迟)。
其他问题:
您在代码中存储了大量的静态状态，这确实令人不悦。这里有个好post (请参阅有关影响的部分)讨论与之相关的问题。大多数编程指南都会建议不要这样做。
考虑调查 better variable names ，甚至使用数组而不是编号变量。它将简化您的代码并使其更具可读性。
您还应该考虑在屏幕类之外重构/委托(delegate)代码。通过这种方式，您可以分离关注点，而不是将所有内容都放入您的类(class)中。现在这不是问题，但随着您扩展游戏，它会很快成为一个问题。
关于android - Libgdx:屏幕管理器，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/17808429/