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modify pathcomponts

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This commit is contained in:
brige 2025-11-11 21:35:15 +08:00
parent a544348789
commit dc6de38b46
1 changed files with 9 additions and 7 deletions
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16
src/entities/PathComponent.cpp
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@ -17,7 +17,7 @@
PathComponent::PathComponent(SceneComponent* parent) PathComponent::PathComponent(SceneComponent* parent)
: SceneComponent(parent) { : SceneComponent(parent) {
animationPath_ = new osg::AnimationPath(); animationPath_ = new osg::AnimationPath();
animationPath_->setLoopMode(osg::AnimationPath::SWING); animationPath_->setLoopMode(osg::AnimationPath::NO_LOOPING);
} }
PathComponent::~PathComponent() { PathComponent::~PathComponent() {
@ -70,16 +70,18 @@ void PathComponent::Begin() {
if (hasPathTimes) { if (hasPathTimes) {
const auto& times = transformPath_->GetTimes(); const auto& times = transformPath_->GetTimes();
if (timeStep_->HasManualRange()) { 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 // 使用文件时间为主：仅截取手动范围内的原始时间点
double srcMin = times.front();
double srcMax = times.back();
double dstMin = timeStep_->GetManualStart(); double dstMin = timeStep_->GetManualStart();
double dstMax = timeStep_->GetManualEnd(); double dstMax = timeStep_->GetManualEnd();
double srcSpan = std::max(1e-9, srcMax - srcMin);
mappedSteps.reserve(times.size()); mappedSteps.reserve(times.size());
for (double t : times) { for (double t : times) {
double alpha = (t - srcMin) / srcSpan; if (t >= dstMin && t <= dstMax) {
mappedSteps.push_back(dstMin + alpha * (dstMax - dstMin)); 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 { } else {
mappedSteps = times; mappedSteps = times;