场景对象增删改查调研：命令系统入口 + 新建对象的真实落点
- Commands.java：Editor -> pE(命令系统) -> void D(String) 按名字执行命令 - Launcher：新增 -Dspine.runCommand="<命令名>" 便于验证 - SceneReader：Tree/选中项探针（actor 树按 SnapshotArray 结构遍历） - 混淆名对照表.md：补命令系统一节、可执行命令名单、skeleton/root 删除边界、 以及 New X 最终落到静态 KP.B(target, 类型名) 的结论与待办
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@@ -22,6 +22,10 @@ public final class SceneReader {
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public static String read(ClassLoader editorLoader, Object stage) {
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StringBuilder out = new StringBuilder();
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// 找"当前选中项"的专用探针（-Dspine.probeTree=1 时只输出它，便于只看这一段）。
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if (System.getProperty("spine.probeTree") != null) {
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return probeTrees(stage);
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}
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// 面板里的文字全部用英文：编辑器这套运行时只装了 NotoSans 拉丁字形，
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// 中文会渲染成一排小方块（tofu）。
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out.append("=== Scene actors ===\n");
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@@ -54,6 +58,129 @@ public final class SceneReader {
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return out.toString();
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}
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/**
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* 探针：在 actor 树里找 `Tree` 控件（这个类名是保名的），把它的节点结构有界地 dump 出来。
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*
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* 目的：编辑器的层级树里挂着"骨骼 / 插槽 / 附件"的对象，找到它就能拿到
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* **当前选中的那个对象**，这是面板要用的真正输入。
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* 只做有界遍历（深度 + 元素个数都限死）—— 这套运行时对大范围反射很敏感，扫猛了会崩。
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*/
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static String probeTrees(Object stage) {
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StringBuilder out = new StringBuilder();
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out.append("=== Tree widgets (selection probe) ===\n");
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int[] budget = new int[] {3};
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int[] visited = new int[] {0};
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try {
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Object root = firstFieldOfType(stage, "do");
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out.append("stage=").append(stage.getClass().getName())
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.append(" root=").append(root == null ? "null" : root.getClass().getName()).append('\n');
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findTrees(root, out, 0, budget, visited);
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out.append("visited actors=").append(visited[0]).append('\n');
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} catch (Throwable error) {
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out.append("probe failed: ").append(error).append('\n');
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}
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System.err.println(out);
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return out.toString();
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}
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/** Stage 的 root 是 Group（载荷里 do），它才是 UI 树真正的根。 */
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private static Object firstFieldOfType(Object target, String typeName) {
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for (Class<?> type = target.getClass(); type != null && type != Object.class;
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type = type.getSuperclass()) {
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for (Field field : type.getDeclaredFields()) {
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if (Modifier.isStatic(field.getModifiers())) continue;
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if (!field.getType().getName().equals(typeName)) continue;
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try {
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field.setAccessible(true);
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Object value = field.get(target);
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if (value != null) return value;
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} catch (Throwable ignored) {
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// 跳过
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}
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}
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}
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return null;
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}
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private static void findTrees(Object actor, StringBuilder out, int depth, int[] budget,
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int[] visited) {
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if (actor == null || depth > 20 || budget[0] <= 0 || visited[0] > 800) return;
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visited[0]++;
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if (visited[0] <= 120) {
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out.append(indent(depth)).append(actor.getClass().getName()).append('\n');
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}
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if (actor.getClass().getName().startsWith("com.badlogic.gdx.scenes.scene2d.ui.Tree")) {
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budget[0]--;
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out.append("--- ").append(actor.getClass().getName()).append(" ---\n");
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dumpFields(actor, out, 1, 3, 12);
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}
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Object children = children(actor);
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if (children instanceof Object[]) {
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for (Object child : (Object[]) children) {
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findTrees(child, out, depth + 1, budget, visited);
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}
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}
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}
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/** 列出对象的字段：标量直接给值，数组/集合只列前几个元素的类名，最多往下 maxDepth 层。 */
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private static void dumpFields(Object target, StringBuilder out, int depth, int maxDepth,
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int maxItems) {
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if (target == null || depth > maxDepth) return;
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for (Class<?> type = target.getClass(); type != null && type != Object.class;
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type = type.getSuperclass()) {
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for (Field field : type.getDeclaredFields()) {
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if (Modifier.isStatic(field.getModifiers())) continue;
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Object value;
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try {
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field.setAccessible(true);
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value = field.get(target);
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} catch (Throwable error) {
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continue;
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}
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out.append(indent(depth)).append(field.getName()).append(':')
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.append(field.getType().getSimpleName()).append(" = ");
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if (value == null) {
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out.append("null\n");
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} else if (value instanceof Number || value instanceof Boolean
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|| value instanceof CharSequence) {
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out.append(value).append('\n');
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} else if (value.getClass().isArray() || arrayItems(value) != null) {
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Object[] items = arrayItems(value);
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out.append(value.getClass().getSimpleName()).append(" size=").append(items.length)
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.append(" [");
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for (int i = 0; i < Math.min(items.length, maxItems); i++) {
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Object item = items[i];
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out.append(i > 0 ? ", " : "")
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.append(item == null ? "null" : item.getClass().getSimpleName());
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}
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out.append("]\n");
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// 把前几个元素也展开一层：Tree 的节点对象就在里面。
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for (int i = 0; i < Math.min(items.length, 2); i++) {
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Object item = items[i];
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if (item == null) continue;
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String name = item.getClass().getName();
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if (name.startsWith("com.esotericsoftware") || !name.contains(".")) {
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out.append(indent(depth + 1)).append("[").append(i).append("] ")
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.append(name).append('\n');
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dumpFields(item, out, depth + 2, maxDepth, maxItems);
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}
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}
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} else {
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out.append(value.getClass().getName()).append('\n');
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}
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if (depth < maxDepth && value != null && !value.getClass().isArray()
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&& !(Number.class.isAssignableFrom(value.getClass()))
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&& !(value instanceof Boolean) && !(value instanceof CharSequence)) {
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String name = value.getClass().getName();
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// 只往"编辑器 / spine 自己的类"里钻，JDK 和 libGDX 内部对象就停住。
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if (name.startsWith("com.esotericsoftware") || !name.contains(".")) {
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dumpFields(value, out, depth + 1, maxDepth, maxItems);
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}
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}
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}
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}
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}
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/** 顺着 Stage 的 actor 树把对象列出来（scene2d 里的一切都是 Actor）。 */
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private static int listActors(Object actor, StringBuilder out, int depth, int count) {
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if (actor == null || depth > 3 || count > 80) return count;
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@@ -70,23 +197,90 @@ public final class SceneReader {
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return count;
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}
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/**
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* 取 Actor 的子节点。
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*
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* libGDX 的 `Group` 用 `SnapshotArray`（载荷里叫 `hq`）装子节点，里面的 `Array`
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* 又是"`Object[] items` + `int size`"两个字段 —— 而字段名被混淆成一堆同名，
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* 所以这里**按结构找**：先找 `Object[]` 字段，再配一个 int 当 size。
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*/
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private static Object children(Object actor) {
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for (Class<?> type = actor.getClass(); type != null; type = type.getSuperclass()) {
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for (Class<?> type = actor.getClass(); type != null && type != Object.class;
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type = type.getSuperclass()) {
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for (Field field : type.getDeclaredFields()) {
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String name = field.getType().getName();
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if (!name.startsWith("[L") || !name.endsWith("dl;")) continue;
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if (Modifier.isStatic(field.getModifiers())) continue;
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Object value;
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try {
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field.setAccessible(true);
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Object value = field.get(actor);
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if (value instanceof Object[]) return value;
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value = field.get(actor);
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} catch (Throwable ignored) {
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// 跳过
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continue;
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}
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Object[] items = arrayItems(value);
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if (items != null && holdsActors(items)) return items;
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}
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// 只看 Group（do）这一层为止：再往上到 Actor（dl）会撞上 listeners 数组（也是 Object[]），
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// 那个不是子节点。
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if (type.getName().equals("do")) break;
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}
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return null;
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}
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/** 子节点数组里装的应该是 Actor（载荷名 dl）；不满足就说明这不是 children。 */
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private static boolean holdsActors(Object[] items) {
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for (Object item : items) {
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if (isActor(item)) return true;
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}
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return items.length == 0;
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}
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private static boolean isActor(Object value) {
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if (value == null) return false;
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for (Class<?> type = value.getClass(); type != null && type != Object.class;
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type = type.getSuperclass()) {
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if (type.getName().equals("dl")) return true;
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}
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return false;
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}
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/** 把 `Object[]` 或"装着 Object[] 的容器"（Array/SnapshotArray）还原成元素数组。 */
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private static Object[] arrayItems(Object value) {
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if (value instanceof Object[]) return (Object[]) value;
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if (value == null || value.getClass().isArray()) return null;
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// libGDX 的 Array（载荷名 fI）才是"真正的表"：`Object[] items` + `int size`。
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// SnapshotArray（hq）继承它，自己另外还有 snapshot/recycled 两个数组和 snapshots 计数
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// —— 所以必须只认 fI 这一层的字段，否则会拿错数组、size 也拿成 snapshots。
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Class<?> arrayClass = null;
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for (Class<?> type = value.getClass(); type != null && type != Object.class;
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type = type.getSuperclass()) {
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if (type.getName().equals("fI")) {
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arrayClass = type;
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break;
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}
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}
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if (arrayClass == null) return null;
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Object[] items = null;
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int size = -1;
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for (Field field : arrayClass.getDeclaredFields()) {
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if (Modifier.isStatic(field.getModifiers())) continue;
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try {
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field.setAccessible(true);
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if (field.getType() == Object[].class) {
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items = (Object[]) field.get(value);
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} else if (field.getType() == int.class) {
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size = field.getInt(value);
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}
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} catch (Throwable ignored) {
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// 跳过
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}
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}
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if (items == null || size < 0) return null;
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int count = size >= 0 && size <= items.length ? size : items.length;
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Object[] out = new Object[count];
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System.arraycopy(items, 0, out, 0, count);
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return out;
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}
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private static void collectComponents(java.awt.Container container, StringBuilder out, int depth) {
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if (container == null || depth > 3) return;
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for (java.awt.Component child : container.getComponents()) {
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