libgdx 加载资源，纹理打包器

Question

很抱歉打扰你，我知道这已经被问过了，但我无法解决它。我已经开始使用 libgdx 并决定编写一本书作为教程 - “学习 LigbGDX 游戏开发”。在第 4 章之前一切都很好，我无法将资产加载到 canyonbunny.pack。我不知道发生了什么。在 ../CanyonBunny-android/assets/images 中创建了两个文件 - 一个是 png，另一个是 atlas。如果你能帮我一把，我会非常欢迎。

DesktopLauncher.java

package com.packtub.libgdx.canyonbunny.desktop;

import com.badlogic.gdx.backends.lwjgl.LwjglApplication;
import com.badlogic.gdx.backends.lwjgl.LwjglApplicationConfiguration;
import com.packtub.libgdx.canyonbunny.CanyonBunnyMain;
import com.badlogic.gdx.tools.texturepacker.TexturePacker;
import com.badlogic.gdx.tools.texturepacker.TexturePacker.Settings;


public class DesktopLauncher {
    private static boolean rebuildAtlas = true;
    private static boolean drawDebugOutline = true;

    public static void main (String[] args) {
        if (rebuildAtlas){
            Settings settings = new Settings();
            settings.maxWidth = 1024;
            settings.maxHeight = 1024;
            settings.debug = drawDebugOutline;
            TexturePacker.process(settings, "assets-raw/images", 
                    "..CanyonBunny-android/assets/images",
                    "canyonbunny.pack");
        }

        LwjglApplicationConfiguration config = new LwjglApplicationConfiguration();

        config.title = "CanyonBunny";
        config.useGL30 = false;
        config.width = 800;
        config.height = 480;
        new LwjglApplication(new CanyonBunnyMain(), config);
    }
}

Assets.java

package com.packtub.libgdx.canyonbunny.game;

import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.assets.AssetDescriptor;
import com.badlogic.gdx.assets.AssetErrorListener;
import com.badlogic.gdx.assets.AssetManager;
import com.badlogic.gdx.graphics.g2d.TextureAtlas;
import com.badlogic.gdx.utils.Disposable;
import com.packtub.libgdx.canyonbunny.util.Constants;
import com.badlogic.gdx.graphics.g2d.TextureAtlas.AtlasRegion;
import com.badlogic.gdx.graphics.Texture;
import com.badlogic.gdx.graphics.Texture.TextureFilter;

public class Assets implements Disposable, AssetErrorListener{
    public static final String TAG = Assets.class.getName();
    public static final Assets instance = new Assets();
    private AssetManager assetManager;

    //singleton: previene de inicializaciones desde otras clases
    private Assets () {}

    public AssetBunny bunny;
    public AssetRock rock;
    public AssetGoldCoin goldCoin;
    public AssetFeather feather;
    public AssetLevelDecoration levelDecoration;

    public void init (AssetManager assetManager){
        this.assetManager = assetManager;
        //Se establece el asset manager que maneja los errores
        assetManager.setErrorListener(this);
        //Carga las texturas atlas
        assetManager.load(Constants.TEXTURE_ATLAS_OBJECTS, TextureAtlas.class);
        //Se inicia a cargar los assets y se espera que termine
        assetManager.finishLoading();
        Gdx.app.debug(TAG, "# de assets cargados: " 
        + assetManager.getAssetNames().size);
        for (String a : assetManager.getAssetNames()) Gdx.app.debug(TAG, "asset: " + a);

        TextureAtlas atlas = assetManager.get(Constants.TEXTURE_ATLAS_OBJECTS);

        //activa la opcion "texture filtering" para una dibujado mas suave de los pixeles
        for (Texture t : atlas.getTextures()) t.setFilter(TextureFilter.Linear, TextureFilter.Linear);

        //Crea los objetos del juego
        bunny = new AssetBunny(atlas);
        rock = new AssetRock(atlas);
        goldCoin = new AssetGoldCoin(atlas);
        feather = new AssetFeather(atlas);
        levelDecoration = new AssetLevelDecoration(atlas);
    }

    @Override 
    public void dispose(){
        assetManager.dispose();
    }

    @Override
    public void error(AssetDescriptor asset, Throwable throwable) {
        Gdx.app.error(TAG, "No se pudo cargar el asset '" + asset + "'", (Exception)throwable);

    }

    //public void error(String filename, Class type, Throwable throwable){
        //Gdx.app.error(TAG, "No se pudo cargar el asset '" + filename + "'", (Exception)throwable);

    //}

    public class AssetBunny {
        public final AtlasRegion head;
        public AssetBunny (TextureAtlas atlas){
            head = atlas.findRegion("bunny_head");
        }
    }

    public class AssetRock {
        public final AtlasRegion edge;
        public final AtlasRegion middle;
        public AssetRock(TextureAtlas atlas){
            edge = atlas.findRegion("rock_edge");
            middle = atlas.findRegion("rock_middle");
        }
    }

    public class AssetGoldCoin {
        public final AtlasRegion goldCoin;
        public AssetGoldCoin(TextureAtlas atlas){
            goldCoin = atlas.findRegion("item_gold_coin");
        }
    }

    public class AssetFeather{
        public final AtlasRegion feather;
        public AssetFeather(TextureAtlas atlas){
            feather = atlas.findRegion("item_feather");
        }
    }

    public class AssetLevelDecoration{
        public final AtlasRegion cloud01;
        public final AtlasRegion cloud02;
        public final AtlasRegion cloud03;
        public final AtlasRegion mountainLeft;
        public final AtlasRegion mountainRight;
        public final AtlasRegion waterOverlay;

        public AssetLevelDecoration(TextureAtlas atlas){
            cloud01 = atlas.findRegion("cloud01");
            cloud02 = atlas.findRegion("cloud02");
            cloud03 = atlas.findRegion("cloud03");
            mountainLeft = atlas.findRegion("mountain_left");
            mountainRight = atlas.findRegion("mountain_right");
            waterOverlay = atlas.findRegion("water_overlay");
        }
    }




}

控制台

图像打包............ 1024x1024 书写： ..CanyonBunny-android\assets\images\canyonbunny.pack.png com.packtub.libgdx.canyonbunny.game.Assets：没有 se pudo cargar el 资产 '图像/canyonbunny.pack，com.badlogic.gdx.graphics.g2d.TextureAtlas' com.badlogic.gdx.utils.GdxRuntimeException：找不到文件： 图像\canyonbunny.pack（内部）在 com.badlogic.gdx.files.FileHandle.read(FileHandle.java:136) 在 com.badlogic.gdx.graphics.g2d.TextureAtlas$TextureAtlasData.(TextureAtlas.java:103) 在 com.badlogic.gdx.assets.loaders.TextureAtlasLoader.getDependencies(TextureAtlasLoader.java:58) 在 com.badlogic.gdx.assets.loaders.TextureAtlasLoader.getDependencies(TextureAtlasLoader.java:34) 在 com.badlogic.gdx.assets.AssetLoadingTask.handleSyncLoader(AssetLoadingTask.java:98) 在 com.badlogic.gdx.assets.AssetLoadingTask.update(AssetLoadingTask.java:87) 在 com.badlogic.gdx.assets.AssetManager.updateTask(AssetManager.java:466) 在 com.badlogic.gdx.assets.AssetManager.update(AssetManager.java:354) 在 com.badlogic.gdx.assets.AssetManager.finishLoading(AssetManager.java:377) 在 com.packtub.libgdx.canyonbunny.game.Assets.init(Assets.java:35) 在 com.packtub.libgdx.canyonbunny.CanyonBunnyMain.create(CanyonBunnyMain.java:25) 在 com.badlogic.gdx.backends.lwjgl.LwjglApplication.mainLoop(LwjglApplication.java:137) 在 com.badlogic.gdx.backends.lwjgl.LwjglApplication$1.run(LwjglApplication.java:114) com.packtub.libgdx.canyonbunny.game.Assets: # de assets cargados: 0 线程“LWJGL 应用程序”中的异常 com.badlogic.gdx.utils.GdxRuntimeException：资产未加载： 图片/canyonbunny.pack 在 com.badlogic.gdx.assets.AssetManager.get(AssetManager.java:110) 在 com.packtub.libgdx.canyonbunny.game.Assets.init(Assets.java:40) 在 com.packtub.libgdx.canyonbunny.CanyonBunnyMain.create(CanyonBunnyMain.java:25) 在 com.badlogic.gdx.backends.lwjgl.LwjglApplication.mainLoop(LwjglApplication.java:137) 在 com.badlogic.gdx.backends.lwjgl.LwjglApplication$1.run(LwjglApplication.java:114)

Answer 1

TexturePacker 会自动放置 settings.atlasExtension(".atlas") 定义的扩展。

更改此设置或将 Constants.TEXTURE_ATLAS_OBJECTS 变量的值更改为“canyonbunny.pack.atlas”。

Answer 2

将设置 atlasExtension 设置为“”。

if (rebuildAtlas) {
            Settings settings = new Settings();
            settings.maxWidth = 1024;
            settings.maxHeight = 1024;
            settings.duplicatePadding = false;
            settings.atlasExtension="";
...
}