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From: =?UTF-8?q?=E5=BC=A0=E6=96=8C?= <259278618@qq.com>
Date: Thu, 13 Aug 2026 15:33:58 +0800
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---
 ui-src/src/utils/theater.js | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100644 ui-src/src/utils/theater.js

diff --git a/ui-src/src/utils/theater.js b/ui-src/src/utils/theater.js
new file mode 100644
index 0000000..d79529f
--- /dev/null
+++ b/ui-src/src/utils/theater.js
@@ -0,0 +1,29 @@
+// 剧场化工具：互动形态判定 + 开场演出数据提取（决策树模型零改动）
+
+const INTERACTION_MAP = { 2: 'PropPick', 3: 'StepSort', 5: 'DragPlace', 7: 'FindSpot', 8: 'LinkMatch' }
+
+// 互动形态判定：config 互动节点 → 对应触控组件；普通决策节点 → 动作卡
+// （触控组件只有 success/fail 双出口，普通节点多分支选项语义由 ActionCard 完整保留）
+export function pickInteraction(node) {
+  if (node && node.config && INTERACTION_MAP[node.interaction_type]) {
+    return INTERACTION_MAP[node.interaction_type]
+  }
+  return 'ActionCard'
+}
+
+// 开场演出道具：入口节点选项的道具名去重，最多 4 个
+export function entryProps(entry) {
+  const names = []
+  for (const o of (entry && entry.options) || []) {
+    if (o.prop && o.prop.name && !names.includes(o.prop.name)) {
+      names.push(o.prop.name)
+      if (names.length >= 4) break
+    }
+  }
+  return names
+}
+
+// 开场演出角色：入口节点人物（可能为空）
+export function entryCharacter(entry) {
+  return entry && entry.character ? entry.character : null
+}