1

server-node/src/modules/ai/chatOrchestrator.ts

@@ -47,6 +47,75 @@ function readNumber(value: unknown, fallback = 0) {
   return typeof value === 'number' && Number.isFinite(value) ? value : fallback;
 }
 
+function countKeywordMatches(text: string, keywords: string[]) {
+  return keywords.reduce(
+    (count, keyword) => (text.includes(keyword) ? count + 1 : count),
+    0,
+  );
+}
+
+function clampAffinityDelta(value: number) {
+  return Math.max(-3, Math.min(3, value));
+}
+
+function computeNpcChatAffinityDelta(params: {
+  playerMessage: string;
+  npcReply: string;
+  chattedCount: number;
+}) {
+  const playerMessage = params.playerMessage.trim();
+  const npcReply = params.npcReply.trim();
+  const positiveKeywords = [
+    '谢谢',
+    '辛苦',
+    '抱歉',
+    '理解',
+    '相信',
+    '放心',
+    '一起',
+    '帮你',
+    '在意',
+    '关心',
+  ];
+  const negativeKeywords = [
+    '闭嘴',
+    '滚',
+    '少废话',
+    '威胁',
+    '骗',
+    '不信',
+    '别装',
+    '快说',
+    '审问',
+    '怀疑',
+  ];
+  const warmReplyKeywords = ['可以', '愿意', '放心', '谢谢', '明白', '好'];
+  const coldReplyKeywords = ['没必要', '不想', '别问', '与你无关', '算了', '住口'];
+
+  const positiveScore =
+    countKeywordMatches(playerMessage, positiveKeywords) +
+    countKeywordMatches(npcReply, warmReplyKeywords);
+  const negativeScore =
+    countKeywordMatches(playerMessage, negativeKeywords) +
+    countKeywordMatches(npcReply, coldReplyKeywords);
+
+  if (positiveScore === 0 && negativeScore === 0) {
+    return params.chattedCount === 0 ? 1 : 0;
+  }
+
+  if (positiveScore > negativeScore) {
+    const baseDelta =
+      positiveScore - negativeScore + (params.chattedCount <= 1 ? 1 : 0);
+    return clampAffinityDelta(baseDelta);
+  }
+
+  if (negativeScore > positiveScore) {
+    return clampAffinityDelta(positiveScore - negativeScore);
+  }
+
+  return 0;
+}
+
 function describeAffinityShift(affinityDelta: number) {
   if (affinityDelta >= 8) return '态度明显软化了下来。';
   if (affinityDelta >= 5) return '态度比刚才亲近了一些。';
@@ -153,7 +222,11 @@ export async function streamNpcChatTurnFromOrchestrator(
     const suggestions = parseLineListContent(suggestionText, 3);
     const npcState = readRecord(params.payload.npcState);
     const chattedCount = readNumber(npcState?.chattedCount, 0);
-    const affinityDelta = Math.max(2, 6 - chattedCount);
+    const affinityDelta = computeNpcChatAffinityDelta({
+      playerMessage: params.payload.playerMessage,
+      npcReply: npcReply || streamedReply,
+      chattedCount,
+    });
 
     writeSseEvent(params.response, 'complete', {
       npcReply: npcReply || streamedReply,

server-node/src/modules/ai/chatPromptBuilders.ts

@@ -353,7 +353,7 @@ export function buildCharacterPanelChatSummaryPrompt(
 }
 
 function buildNpcDialoguePromptBase(
-  payload: NpcChatDialogueRequest | NpcRecruitDialogueRequest,
+  payload: NpcChatDialogueRequest | NpcChatTurnRequest | NpcRecruitDialogueRequest,
 ) {
   const encounter = describeEncounter(payload.encounter);