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Source/Engine/Navigation/NavigationSettings.h

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+// Copyright (c) 2012-2020 Wojciech Figat. All rights reserved.
+
+#pragma once
+
+#include "Engine/Core/Config/Settings.h"
+#include "Engine/Serialization/Serialization.h"
+
+/// <summary>
+/// The navigation system settings container.
+/// </summary>
+/// <seealso cref="Settings{NavigationSettings}" />
+class NavigationSettings : public Settings<NavigationSettings>
+{
+public:
+
+    /// <summary>
+    /// The height of a grid cell in the navigation mesh building steps using heightfields. 
+    /// A lower number means higher precision on the vertical axis but longer build times.
+    /// </summary>
+    float CellHeight = 10.0f;
+
+    /// <summary>
+    /// The width/height of a grid cell in the navigation mesh building steps using heightfields. 
+    /// A lower number means higher precision on the horizontal axes but longer build times.
+    /// </summary>
+    float CellSize = 30.0f;
+
+    /// <summary>
+    /// Tile size used for Navigation mesh tiles, the final size of a tile is CellSize*TileSize.
+    /// </summary>
+    int32 TileSize = 64;
+
+    /// <summary>
+    /// The minimum number of cells allowed to form isolated island areas.
+    /// </summary>
+    int32 MinRegionArea = 0;
+
+    /// <summary>
+    /// Any regions with a span count smaller than this value will, if possible, be merged with larger regions.
+    /// </summary>
+    int32 MergeRegionArea = 20;
+
+    /// <summary>
+    /// The maximum allowed length for contour edges along the border of the mesh.
+    /// </summary>
+    float MaxEdgeLen = 1200.0f;
+
+    /// <summary>
+    /// The maximum distance a simplified contour's border edges should deviate from the original raw contour.
+    /// </summary>
+    float MaxEdgeError = 1.3f;
+
+    /// <summary>
+    /// The sampling distance to use when generating the detail mesh.
+    /// </summary>
+    float DetailSamplingDist = 600.0f;
+
+    /// <summary>
+    /// The maximum distance the detail mesh surface should deviate from heightfield data.
+    /// </summary>
+    float MaxDetailSamplingError = 1.0f;
+
+    /// <summary>
+    /// The radius of the smallest objects to traverse this nav mesh. Objects can't pass through gaps of less than twice the radius.
+    /// </summary>
+    float WalkableRadius = 34.0f;
+
+    /// <summary>
+    /// The height of the smallest objects to traverse this nav mesh. Objects can't enter areas with ceilings lower than this value.
+    /// </summary>
+    float WalkableHeight = 144.0f;
+
+    /// <summary>
+    /// The maximum ledge height that is considered to still be traversable.
+    /// </summary>
+    float WalkableMaxClimb = 35.0f;
+
+    /// <summary>
+    /// The maximum slope that is considered walkable (in degrees). Objects can't go up or down slopes higher than this value.
+    /// </summary>
+    float WalkableMaxSlopeAngle = 60.0f;
+
+public:
+
+    // [Settings]
+    void RestoreDefault() final override
+    {
+        CellHeight = 10.0f;
+        CellSize = 30.0f;
+        TileSize = 64;
+        MinRegionArea = 0;
+        MergeRegionArea = 20;
+        MaxEdgeLen = 1200.0f;
+        MaxEdgeError = 1.3f;
+        DetailSamplingDist = 600.0f;
+        MaxDetailSamplingError = 1.0f;
+        WalkableRadius = 34.0f;
+        WalkableHeight = 144.0f;
+        WalkableMaxClimb = 35.0f;
+        WalkableMaxSlopeAngle = 60.0f;
+    }
+
+    void Deserialize(DeserializeStream& stream, ISerializeModifier* modifier) final override
+    {
+        DESERIALIZE(CellHeight);
+        DESERIALIZE(CellSize);
+        DESERIALIZE(TileSize);
+        DESERIALIZE(MinRegionArea);
+        DESERIALIZE(MergeRegionArea);
+        DESERIALIZE(MaxEdgeLen);
+        DESERIALIZE(MaxEdgeError);
+        DESERIALIZE(DetailSamplingDist);
+        DESERIALIZE(MaxDetailSamplingError);
+        DESERIALIZE(WalkableRadius);
+        DESERIALIZE(WalkableHeight);
+        DESERIALIZE(WalkableMaxClimb);
+        DESERIALIZE(WalkableMaxSlopeAngle);
+    }
+};