初始提交: UE5.3项目基础框架

Plugins/CesiumForUnreal/Source/CesiumRuntime/Public/CesiumSubLevel.h

@@ -0,0 +1,87 @@
+// Copyright 2020-2024 CesiumGS, Inc. and Contributors
+
+#pragma once
+
+#include "CoreMinimal.h"
+#include "GameFramework/Actor.h"
+#include "CesiumSubLevel.generated.h"
+
+class ULevelStreaming;
+
+struct UE_DEPRECATED(
+    5.0,
+    "The FCesiumSubLevel struct has been deprecated. Use Level Instance Actors and UCesiumSubLevelComponent instead.")
+    FCesiumSubLevel;
+
+/*
+ * Sublevels can be georeferenced to the globe by filling out this struct.
+ */
+USTRUCT()
+struct FCesiumSubLevel {
+  GENERATED_BODY()
+
+  /**
+   * The plain name of the sub level, without any prefixes.
+   */
+  UPROPERTY(VisibleAnywhere, Category = "Cesium")
+  FString LevelName;
+
+  /**
+   * Whether this sub-level is enabled. An enabled sub-level will be
+   * automatically loaded when the camera moves within its LoadRadius and
+   * no other levels are closer, and the Georeference will be updated so that
+   * this level's Longitude, Latitude, and Height bcome (0, 0, 0) in the Unreal
+   * World. A sub-level that is not enabled will be ignored by Cesium.
+   *
+   * If this option is greyed out, check that World Composition is enabled
+   * in the World Settings and that this sub-level is in a Layer that has
+   * Distance-based streaming DISABLED.
+   */
+  UPROPERTY(
+      EditAnywhere,
+      Category = "Cesium",
+      Meta = (EditCondition = "CanBeEnabled"))
+  bool Enabled = true;
+
+  /**
+   * The WGS84 latitude in degrees of where this level should sit on the globe,
+   * in the range [-90, 90]
+   */
+  UPROPERTY(
+      EditAnywhere,
+      Category = "Cesium",
+      meta = (ClampMin = -90.0, ClampMax = 90.0, EditCondition = "Enabled"))
+  double LevelLatitude = 0.0;
+
+  /**
+   * The WGS84 longitude in degrees of where this level should sit on the
+   * globe, in the range [-180, 180]
+   */
+  UPROPERTY(
+      EditAnywhere,
+      Category = "Cesium",
+      meta = (ClampMin = -180.0, ClampMax = 180.0, EditCondition = "Enabled"))
+  double LevelLongitude = 0.0;
+
+  /**
+   * The height in meters above the WGS84 globe this level should sit.
+   */
+  UPROPERTY(
+      EditAnywhere,
+      Category = "Cesium",
+      meta = (EditCondition = "Enabled"))
+  double LevelHeight = 0.0;
+
+  /**
+   * How far in meters from the sublevel local origin the camera needs to be to
+   * load the level.
+   */
+  UPROPERTY(
+      EditAnywhere,
+      Category = "Cesium",
+      meta = (ClampMin = 0.0, EditCondition = "Enabled"))
+  double LoadRadius = 0.0;
+
+  UPROPERTY(VisibleDefaultsOnly, Category = "Cesium")
+  bool CanBeEnabled = false;
+};