96 lines
2.5 KiB
C++
96 lines
2.5 KiB
C++
// Copyright (c) 2012-2021 Wojciech Figat. All rights reserved.
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#include "NavMeshData.h"
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#include "Engine/Core/Log.h"
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#include "Engine/Serialization/MemoryReadStream.h"
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void NavMeshData::Save(WriteStream& stream)
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{
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// Write header
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NavMeshDataHeader header;
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header.Version = 1;
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header.TileSize = TileSize;
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header.TilesCount = Tiles.Count();
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stream.Write(&header);
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// Write tiles
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for (int32 tileIndex = 0; tileIndex < Tiles.Count(); tileIndex++)
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{
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auto& tile = Tiles[tileIndex];
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// Write tile header
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NavMeshTileDataHeader tileHeader;
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tileHeader.PosX = tile.PosX;
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tileHeader.PosY = tile.PosY;
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tileHeader.Layer = tile.Layer;
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tileHeader.DataSize = tile.Data.Length();
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stream.Write(&tileHeader);
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// Write tile data
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if (tileHeader.DataSize)
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{
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stream.WriteBytes(tile.Data.Get(), tileHeader.DataSize);
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}
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else
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{
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LOG(Warning, "Empty navmesh tile data.");
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}
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}
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}
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bool NavMeshData::Load(BytesContainer& data, bool copyData)
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{
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// No data
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if (data.Length() < sizeof(NavMeshDataHeader))
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{
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LOG(Warning, "No valid navmesh data.");
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return true;
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}
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MemoryReadStream stream(data.Get(), data.Length());
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// Read header
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const auto header = stream.Read<NavMeshDataHeader>(1);
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if (header->Version != 1)
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{
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LOG(Warning, "Invalid valid navmesh data version {0}.", header->Version);
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return true;
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}
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if (header->TilesCount < 0 || header->TileSize < 1)
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{
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LOG(Warning, "Invalid navmesh data.");
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return true;
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}
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TileSize = header->TileSize;
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Tiles.Resize(header->TilesCount);
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// Read tiles
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for (int32 tileIndex = 0; tileIndex < Tiles.Count(); tileIndex++)
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{
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auto& tile = Tiles[tileIndex];
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// Read tile header
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const auto tileHeader = stream.Read<NavMeshTileDataHeader>(1);
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if (tileHeader->DataSize <= 0)
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{
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LOG(Warning, "Invalid navmesh tile data.");
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return true;
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}
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tile.PosX = tileHeader->PosX;
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tile.PosY = tileHeader->PosY;
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tile.Layer = tileHeader->Layer;
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// Read tile data
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const auto tileData = stream.Read<byte>(tileHeader->DataSize);
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if (copyData)
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{
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tile.Data.Copy(tileData, tileHeader->DataSize);
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}
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else
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{
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tile.Data.Link(tileData, tileHeader->DataSize);
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}
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}
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return false;
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}
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