使用com.badlogic.gdx.utils.JsonValue.iterator()方法解析JSON数据

本文总结了 Java 中 com.badlogic.gdx.utils.JsonValue.iterator() 方法的应用实例，通过具体的代码示例展示了该方法的使用方式。这些示例主要来自 GitHub、Stack Overflow 和 Maven 等平台，均从精选项目中提取，具有较高的参考价值。

JsonValue.iterator 方法介绍

JsonValue.iterator() 方法用于获取一个迭代器，该迭代器可以用来遍历 JsonValue 对象中的所有子节点。此方法特别适用于处理包含多个子元素的 JSON 对象或数组。

代码示例

以下是一些具体的应用示例：

示例 1: 解析武器数据
来源：Stack Overflow

JsonValue json = new JsonReader().parse(text);
Array weapOns= new Array();
JsonValue weapOnsJson= json.get("weapons");
for (JsonValue weaponJson : weaponsJson.iterator()) {
    Weapon newWeapon = new Weapon();
    newWeapon.name = weaponJson.getString("name");
    newWeapon.price = weaponJson.getInt("price");
    weapons.add(newWeapon);
}

示例 2: 读取缩放因子模型
来源：crashinvaders/gdx-texture-packer-gui

@Override
public ScaleFactorModel read(Json json, JsonValue jsonData, Class type) {
    String suffix = "";
    float factor = 1f;
    TexturePacker.Resampling resampling = TexturePacker.Resampling.bicubic;
    JsonValue.JsonIterator iterator = jsonData.iterator();
    while (iterator.hasNext()) {
        JsonValue value = iterator.next();
        switch (value.name) {
            case "suffix":
                suffix = value.asString();
                break;
            case "factor":
                factor = value.asFloat();
                break;
            case "resampling":
                resampling = TexturePacker.Resampling.valueOf(value.asString());
                break;
        }
    }
    return new ScaleFactorModel(suffix, factor, resampling);
}

示例 3: 加载音效数据
来源：dsaltares/libgdx-cookbook

private void loadSoundData(FileHandle handle) {
    try {
        JsonReader reader = new JsonReader();
        JsonIterator it = reader.parse(handle).iterator();
        while (it.hasNext()) {
            JsonValue value = it.next();
            String name = value.getString("name");
            Sound sound = Gdx.audio.newSound(Gdx.files.internal(name));
            float duration = value.getFloat("duration");
            float falloffStart = value.getFloat("falloffStart", 0.0f);
            float maxDistance = value.getFloat("maxDistance", 10.0f);
            SoundData soundData = new SoundData(sound, duration, falloffStart, maxDistance);
            soundsData.put(name, soundData);
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
}

示例 4: 加载材质文件
来源：dsaltares/libgdx-cookbook

private void loadMaterialsFile(FileHandle materialsFile) {
    logger.info("adding default material");
    FixtureDef fixtureDef = new FixtureDef();
    fixtureDef.density = 1.0f;
    fixtureDef.friction = 1.0f;
    fixtureDef.restitution = 0.0f;
    materials.put("default", fixtureDef);
    logger.info("loading materials file");
    try {
        JsonReader reader = new JsonReader();
        JsonValue root = reader.parse(materialsFile);
        JsonIterator materialIt = root.iterator();
        while (materialIt.hasNext()) {
            JsonValue materialValue = materialIt.next();
            if (!materialValue.has("name")) {
                logger.error("material without name");
                continue;
            }
            String name = materialValue.getString("name");
            fixtureDef = new FixtureDef();
            fixtureDef.density = materialValue.getFloat("density", 1.0f);
            fixtureDef.friction = materialValue.getFloat("friction", 1.0f);
            fixtureDef.restitution = materialValue.getFloat("restitution", 0.0f);
            logger.info("adding material " + name);
            materials.put(name, fixtureDef);
        }
    } catch (Exception e) {
        logger.error("error loading " + materialsFile.name() + " " + e.getMessage());
    }
}

示例 5: 遍历动画集合
来源：dsaltares/libgdx-cookbook

JsonIterator animatiOnsIt= animations.iterator();
boolean first = true;

示例 6: 加载材质资产
来源：mbrlabs/Mundus

for(JsonValue mat : mats.iterator()) {
    mc.getMaterials().put(mat.name, (MaterialAsset) assetManager.findAssetByID(mats.getString(mat.name)));
}