1e6f4b338b
Backend: - Add /api/v1/ue/* endpoints (compute-points, cables, landing-points, satellites, status) returning flat JSON optimised for UE5 C++ parsing UE5 client (ue_client/): - PlanetDataManager: HTTP fetch + local mock JSON loader, spawns ComputePointActors - ComputePointActor / InteractiveObjectBase: hover/select state, material switching - GlobeInteractionComponent: drag-to-rotate via CesiumGeoreference origin shift, inertia, zoom - StereoRenderingManager: runtime SbS/TbB stereo toggle, IPD control (format TBD) - MotionCaptureInterface: protocol-agnostic gesture/rotate/zoom delegate interface (impl TBD) - PlanetPlayerController: unified mouse + motion-capture input routing - PlanetGameMode, Build.cs, Config, mock data Docs: - ue5_mvp_fused_plan.md updated to v3.0 for LED display context - ue_client_setup_guide.md: step-by-step editor setup guide - ue_todo.md: pending items blocked on vendor answers (stereo format + mocap protocol) Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
123 lines
4.0 KiB
C++
123 lines
4.0 KiB
C++
#include "GlobeInteractionComponent.h"
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#include "CesiumGeoreference.h"
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#include "Engine/World.h"
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#include "GameFramework/Pawn.h"
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#include "GameFramework/PlayerController.h"
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#include "Kismet/GameplayStatics.h"
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UGlobeInteractionComponent::UGlobeInteractionComponent()
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{
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PrimaryComponentTick.bCanEverTick = true;
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}
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void UGlobeInteractionComponent::BeginPlay()
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{
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Super::BeginPlay();
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FindGeoreference();
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}
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void UGlobeInteractionComponent::FindGeoreference()
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{
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Georeference = ACesiumGeoreference::GetDefaultGeoreference(GetWorld());
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if (!Georeference)
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{
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UE_LOG(LogTemp, Error,
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TEXT("GlobeInteractionComponent: 场景中没有 CesiumGeoreference，请添加一个"));
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}
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}
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// ---------------------------------------------------------------------------
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// 旋转
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// ---------------------------------------------------------------------------
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void UGlobeInteractionComponent::RotateGlobe(float DeltaYaw, float DeltaPitch)
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{
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if (!Georeference) return;
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// 累积惯性速度（本帧的输入叠加到惯性上）
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InertiaYaw += DeltaYaw * RotateSensitivity;
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InertiaPitch += DeltaPitch * RotateSensitivity;
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// 立即应用（Tick 里再处理惯性衰减）
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double NewLon = Georeference->GetOriginLongitude() - InertiaYaw;
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double NewLat = FMath::Clamp(
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Georeference->GetOriginLatitude() + InertiaPitch,
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-85.0, 85.0
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);
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Georeference->SetOriginLongitude(NewLon);
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Georeference->SetOriginLatitude(NewLat);
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// 保持经度在 [-180, 180]
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if (NewLon > 180.0) Georeference->SetOriginLongitude(NewLon - 360.0);
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if (NewLon < -180.0) Georeference->SetOriginLongitude(NewLon + 360.0);
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}
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// ---------------------------------------------------------------------------
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// 缩放
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// ---------------------------------------------------------------------------
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void UGlobeInteractionComponent::ZoomGlobe(float Value)
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{
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if (FMath::IsNearlyZero(Value)) return;
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// Value > 0 = 拉近（高度减小），Value < 0 = 推远（高度增大）
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CurrentAltitudeMeters -= Value * ZoomSensitivity;
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CurrentAltitudeMeters = FMath::Clamp(CurrentAltitudeMeters,
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MinAltitudeMeters,
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MaxAltitudeMeters);
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ApplyAltitudeToCamera();
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}
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void UGlobeInteractionComponent::ApplyAltitudeToCamera()
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{
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if (!Georeference) return;
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// 把当前 Origin 经纬度 + 新高度转换为 Unreal 世界坐标，然后移动拥有者 Pawn
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AController* Controller = Cast<AController>(GetOwner());
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APawn* Pawn = Controller ? Controller->GetPawn() : Cast<APawn>(GetOwner());
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if (!Pawn) return;
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double Lon = Georeference->GetOriginLongitude();
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double Lat = Georeference->GetOriginLatitude();
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FVector NewPos = Georeference->TransformLongitudeLatitudeHeightPositionToUnreal(
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FVector(Lon, Lat, CurrentAltitudeMeters)
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);
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Pawn->SetActorLocation(NewPos);
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}
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// ---------------------------------------------------------------------------
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// 惯性 Tick
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// ---------------------------------------------------------------------------
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void UGlobeInteractionComponent::TickComponent(float DeltaTime, ELevelTick TickType,
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FActorComponentTickFunction* ThisTickFunction)
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{
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Super::TickComponent(DeltaTime, TickType, ThisTickFunction);
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// 只有惯性速度足够大时才继续转动
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if (FMath::IsNearlyZero(InertiaYaw, 0.001f) &&
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FMath::IsNearlyZero(InertiaPitch, 0.001f)) return;
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if (!Georeference) return;
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double NewLon = Georeference->GetOriginLongitude() - InertiaYaw;
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double NewLat = FMath::Clamp(
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Georeference->GetOriginLatitude() + InertiaPitch,
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-85.0, 85.0
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);
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Georeference->SetOriginLongitude(NewLon);
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Georeference->SetOriginLatitude(NewLat);
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// 惯性衰减
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InertiaYaw *= InertiaDamping;
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InertiaPitch *= InertiaDamping;
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}
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void UGlobeInteractionComponent::StopInertia()
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{
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InertiaYaw = 0.f;
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InertiaPitch = 0.f;
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}
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