From dc6de38b468c953654e6762643ed7ba2766e523c Mon Sep 17 00:00:00 2001
From: brige <jiegeaiai@163.com>
Date: Tue, 11 Nov 2025 21:35:15 +0800
Subject: [PATCH] modify pathcomponts

---
 src/entities/PathComponent.cpp | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/src/entities/PathComponent.cpp b/src/entities/PathComponent.cpp
index 2d6f25c8..40b2b5a6 100644
--- a/src/entities/PathComponent.cpp
+++ b/src/entities/PathComponent.cpp
@@ -17,7 +17,7 @@
 PathComponent::PathComponent(SceneComponent* parent)
     : SceneComponent(parent) {
     animationPath_ = new osg::AnimationPath();
-    animationPath_->setLoopMode(osg::AnimationPath::SWING);
+    animationPath_->setLoopMode(osg::AnimationPath::NO_LOOPING);
 }
 
 PathComponent::~PathComponent() {
@@ -70,16 +70,18 @@ void PathComponent::Begin() {
     if (hasPathTimes) {
         const auto& times = transformPath_->GetTimes();
         if (timeStep_->HasManualRange()) {
-            // 将路径文件时间列线性映射到用户指定的手动区间，保证相对时间关系不变
-            double srcMin = times.front();
-            double srcMax = times.back();
+            // 使用文件时间为主：仅截取手动范围内的原始时间点
             double dstMin = timeStep_->GetManualStart();
             double dstMax = timeStep_->GetManualEnd();
-            double srcSpan = std::max(1e-9, srcMax - srcMin);
             mappedSteps.reserve(times.size());
             for (double t : times) {
-                double alpha = (t - srcMin) / srcSpan;
-                mappedSteps.push_back(dstMin + alpha * (dstMax - dstMin));
+                if (t >= dstMin && t <= dstMax) {
+                    mappedSteps.push_back(t);
+                }
+            }
+            // 若截取后为空，回退为原始时间列，避免动画路径为空
+            if (mappedSteps.empty()) {
+                mappedSteps = times;
             }
         } else {
             mappedSteps = times;