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author | Mattes D <github@xoft.cz> | 2015-12-03 13:07:23 +0100 |
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committer | Mattes D <github@xoft.cz> | 2015-12-03 13:07:23 +0100 |
commit | 3fb356648453169758a9f5649f0ed4c5925d911f (patch) | |
tree | 57c90ff51aaeac4b1c2e05538a9f486da0a19f28 /src/Generating/VerticalLimit.cpp | |
parent | Merge pull request #2696 from Gargaj/breeding (diff) | |
parent | Changed Nether defaults to use PieceStructures. (diff) | |
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Diffstat (limited to '')
-rw-r--r-- | src/Generating/VerticalLimit.cpp | 414 |
1 files changed, 414 insertions, 0 deletions
diff --git a/src/Generating/VerticalLimit.cpp b/src/Generating/VerticalLimit.cpp new file mode 100644 index 000000000..5cc003749 --- /dev/null +++ b/src/Generating/VerticalLimit.cpp @@ -0,0 +1,414 @@ + +// VerticalLimit.cpp + +#include "Globals.h" +#include "VerticalLimit.h" + + + + + +// Emit a warning if the first param is true +#define CONDWARNING(ShouldLog, Fmt, ...) \ + if (ShouldLog) \ + { \ + LOGWARNING(Fmt, __VA_ARGS__); \ + } + + + + + +//////////////////////////////////////////////////////////////////////////////// +// Globals: + +/** Parses a string containing a range in which both values are optional ("<MinHeight>|<MaxHeight>") into Min, Max. +Returns true if successful, false on failure. +If a_LogWarnings is true, outputs failure reasons to console. +The range is returned in a_Min and a_Max. +If no value is in the string, both values are left unchanged. +If only the minimum is in the string, it is assigned to both a_Min and a_Max. */ +static bool ParseRange(const AString & a_Params, int & a_Min, int & a_Max, bool a_LogWarnings) +{ + auto params = StringSplitAndTrim(a_Params, "|"); + if (params.size() == 0) + { + // No params, generate directly on top: + return true; + } + if (!StringToInteger(params[0], a_Min)) + { + // Failed to parse the min rel height: + CONDWARNING(a_LogWarnings, "Cannot parse minimum height from string \"%s\"!", params[0].c_str()); + return false; + } + if (params.size() == 1) + { + // Only one param was given, there's no range + a_Max = a_Min; + return true; + } + if (!StringToInteger(params[1], a_Max)) + { + CONDWARNING(a_LogWarnings, "Cannot parse maximum height from string \"%s\"!", params[1].c_str()); + return false; + } + if (a_Max < a_Min) + { + std::swap(a_Max, a_Min); + } + return true; +} + + + + + +//////////////////////////////////////////////////////////////////////////////// +/** Limit that accepts any height. The default for all pieces. */ +class cVerticalLimitNone: + public cPiece::cVerticalLimit +{ +public: + virtual bool CanBeAtHeight(int a_BlockX, int a_BlockZ, int a_Height) override + { + // Any height is okay + return true; + } + + + virtual bool InitializeFromString(const AString & a_Params, bool a_LogWarnings) override + { + // No parameters to read, no checks being done + return true; + } +}; + + + + + +//////////////////////////////////////////////////////////////////////////////// +/** Limit that accepts heights above the specified minimum fixed height. */ +class cVerticalLimitAbove: + public cPiece::cVerticalLimit +{ +public: + virtual bool CanBeAtHeight(int a_BlockX, int a_BlockZ, int a_Height) override + { + return (a_Height >= m_MinHeight); + } + + + virtual bool InitializeFromString(const AString & a_Params, bool a_LogWarnings) override + { + // Parameters: "<MinHeight>", compulsory + if (!StringToInteger(a_Params, m_MinHeight)) + { + CONDWARNING(a_LogWarnings, "Cannot parse the minimum height from string \"%s\"!", a_Params.c_str()); + return false; + } + return true; + } + +protected: + /** The minimum accepted height. */ + int m_MinHeight; +}; + + + + + +//////////////////////////////////////////////////////////////////////////////// +/** Limit that accepts heights that are a specified number of blocks above terrain. */ +class cVerticalLimitAboveTerrain: + public cPiece::cVerticalLimit +{ +public: + virtual bool CanBeAtHeight(int a_BlockX, int a_BlockZ, int a_Height) override + { + auto terrainHeight = m_TerrainHeightGen->GetHeightAt(a_BlockX, a_BlockZ); + int compareHeight = a_Height - terrainHeight; + return ( + (compareHeight >= m_MinBlocksAbove) && // Above the minimum + (compareHeight <= m_MaxBlocksAbove) // and below the maximum + ); + } + + + virtual bool InitializeFromString(const AString & a_Params, bool a_LogWarnings) override + { + // Parameters: "<MinBlocksAbove>|<MaxBlocksAbove>", both optional + m_MinBlocksAbove = 0; + m_MaxBlocksAbove = 0; + return ParseRange(a_Params, m_MinBlocksAbove, m_MaxBlocksAbove, a_LogWarnings); + } + + + virtual void AssignGens(int a_Seed, cBiomeGenPtr & a_BiomeGen, cTerrainHeightGenPtr & a_TerrainHeightGen, int a_SeaLevel) override + { + m_TerrainHeightGen = a_TerrainHeightGen; + } + +protected: + /** The underlying height generator. */ + cTerrainHeightGenPtr m_TerrainHeightGen; + + /** How many blocks above the terrain level do we accept on minimum. */ + int m_MinBlocksAbove; + + /** How many blocks above the terrain level do we accept on maximum. */ + int m_MaxBlocksAbove; +}; + + + + + +//////////////////////////////////////////////////////////////////////////////// +/** Limit that accepts heights that are a specified number of blocks above terrain and sealevel, whichever is higher. */ +class cVerticalLimitAboveTerrainAndOcean: + public cPiece::cVerticalLimit +{ +public: + virtual bool CanBeAtHeight(int a_BlockX, int a_BlockZ, int a_Height) override + { + ASSERT(m_TerrainHeightGen != nullptr); + int terrainHeight = m_TerrainHeightGen->GetHeightAt(a_BlockX, a_BlockZ); + int compareHeight = a_Height - std::max(terrainHeight, m_SeaLevel); + return ( + (compareHeight >= m_MinBlocksAbove) && // Above the minimum + (compareHeight <= m_MaxBlocksAbove) // and below the maximum + ); + } + + + virtual bool InitializeFromString(const AString & a_Params, bool a_LogWarnings) override + { + // Parameters: "<MinBlocksAbove>|<MaxBlocksAbove>", both optional + m_MinBlocksAbove = 0; + m_MaxBlocksAbove = 0; + return ParseRange(a_Params, m_MinBlocksAbove, m_MaxBlocksAbove, a_LogWarnings); + } + + + virtual void AssignGens(int a_Seed, cBiomeGenPtr & a_BiomeGen, cTerrainHeightGenPtr & a_TerrainHeightGen, int a_SeaLevel) override + { + m_TerrainHeightGen = a_TerrainHeightGen; + m_SeaLevel = a_SeaLevel; + } + +protected: + /** The underlying height generator. */ + cTerrainHeightGenPtr m_TerrainHeightGen; + + /** The sealevel for the current world. */ + int m_SeaLevel; + + /** How many blocks above the terrain level / ocean do we accept on minimum. */ + int m_MinBlocksAbove; + + /** How many blocks above the terrain level / ocean do we accept on maximum. */ + int m_MaxBlocksAbove; +}; + + + + + +//////////////////////////////////////////////////////////////////////////////// +/** Limit that accepts heights below the specified fixed height. +NOTE that the query height is the BOTTOM of the piece. */ +class cVerticalLimitBelow: + public cPiece::cVerticalLimit +{ +public: + virtual bool CanBeAtHeight(int a_BlockX, int a_BlockZ, int a_Height) override + { + return (a_Height <= m_MaxHeight); + } + + + virtual bool InitializeFromString(const AString & a_Params, bool a_LogWarnings) override + { + // Parameters: "<MaxHeight>" + if (!StringToInteger(a_Params, m_MaxHeight)) + { + CONDWARNING(a_LogWarnings, "Cannot parse the maximum height from string \"%s\"!", a_Params.c_str()); + return false; + } + return true; + } + +protected: + /** The maximum accepted height. */ + int m_MaxHeight; +}; + + + + + +//////////////////////////////////////////////////////////////////////////////// +/** Limit that accepts heights that are within a specified range below terrain. +NOTE that the query height is the BOTTOM of the piece. */ +class cVerticalLimitBelowTerrain: + public cPiece::cVerticalLimit +{ +public: + virtual bool CanBeAtHeight(int a_BlockX, int a_BlockZ, int a_Height) override + { + auto terrainHeight = m_TerrainHeightGen->GetHeightAt(a_BlockX, a_BlockZ); + auto compareHeight = terrainHeight - a_Height; + return ( + (compareHeight >= m_MinBlocksBelow) && + (compareHeight <= m_MaxBlocksBelow) + ); + } + + + virtual bool InitializeFromString(const AString & a_Params, bool a_LogWarnings) override + { + // Parameters: "<MinBlocksBelow>|<MaxBlocksBelow>", both optional + m_MinBlocksBelow = 0; + m_MaxBlocksBelow = 0; + return ParseRange(a_Params, m_MinBlocksBelow, m_MaxBlocksBelow, a_LogWarnings); + } + + + virtual void AssignGens(int a_Seed, cBiomeGenPtr & a_BiomeGen, cTerrainHeightGenPtr & a_TerrainHeightGen, int a_SeaLevel) override + { + m_TerrainHeightGen = a_TerrainHeightGen; + } + +protected: + /** The underlying height generator. */ + cTerrainHeightGenPtr m_TerrainHeightGen; + + /** How many blocks below the terrain level do we accept on minimum. */ + int m_MinBlocksBelow; + + /** How many blocks below the terrain level do we accept on maximum. */ + int m_MaxBlocksBelow; +}; + + + + + +//////////////////////////////////////////////////////////////////////////////// +/** Limit that accepts heights that are a specified number of blocks below terrain or sealevel, whichever is higher. */ +class cVerticalLimitBelowTerrainOrOcean: + public cPiece::cVerticalLimit +{ +public: + virtual bool CanBeAtHeight(int a_BlockX, int a_BlockZ, int a_Height) override + { + int terrainHeight = m_TerrainHeightGen->GetHeightAt(a_BlockX, a_BlockZ); + auto compareHeight = std::max(terrainHeight, m_SeaLevel) - a_Height; + return ( + (compareHeight >= m_MinBlocksBelow) && + (compareHeight <= m_MaxBlocksBelow) + ); + } + + + virtual bool InitializeFromString(const AString & a_Params, bool a_LogWarnings) override + { + // Parameters: "<MinBlocksBelow>|<MaxBlocksBelow>", both optional + m_MinBlocksBelow = 0; + m_MaxBlocksBelow = 0; + return ParseRange(a_Params, m_MinBlocksBelow, m_MaxBlocksBelow, a_LogWarnings); + } + + + virtual void AssignGens(int a_Seed, cBiomeGenPtr & a_BiomeGen, cTerrainHeightGenPtr & a_TerrainHeightGen, int a_SeaLevel) override + { + m_TerrainHeightGen = a_TerrainHeightGen; + m_SeaLevel = a_SeaLevel; + } + +protected: + /** The underlying height generator. */ + cTerrainHeightGenPtr m_TerrainHeightGen; + + /** The sealevel for the current world. */ + int m_SeaLevel; + + /** How many blocks below the terrain level do we accept on minimum. */ + int m_MinBlocksBelow; + + /** How many blocks below the terrain level do we accept on maximum. */ + int m_MaxBlocksBelow; +}; + + + + + +//////////////////////////////////////////////////////////////////////////////// +// CreateVerticalLimitFromString: + +cPiece::cVerticalLimitPtr CreateVerticalLimitFromString(const AString & a_LimitDesc, bool a_LogWarnings) +{ + // Break apart the limit class, the first parameter before the first pipe char: + auto idxPipe = a_LimitDesc.find('|'); + if (idxPipe == AString::npos) + { + idxPipe = a_LimitDesc.length(); + } + AString LimitClass = a_LimitDesc.substr(0, idxPipe); + + // Create a strategy class based on the class string: + cPiece::cVerticalLimitPtr Limit; + if ((LimitClass == "") || (NoCaseCompare(LimitClass, "None") == 0)) + { + Limit = std::make_shared<cVerticalLimitNone>(); + } + else if (NoCaseCompare(LimitClass, "Above") == 0) + { + Limit = std::make_shared<cVerticalLimitAbove>(); + } + else if (NoCaseCompare(LimitClass, "AboveTerrain") == 0) + { + Limit = std::make_shared<cVerticalLimitAboveTerrain>(); + } + else if (NoCaseCompare(LimitClass, "AboveTerrainAndOcean") == 0) + { + Limit = std::make_shared<cVerticalLimitAboveTerrainAndOcean>(); + } + else if (NoCaseCompare(LimitClass, "Below") == 0) + { + Limit = std::make_shared<cVerticalLimitBelow>(); + } + else if (NoCaseCompare(LimitClass, "BelowTerrain") == 0) + { + Limit = std::make_shared<cVerticalLimitBelowTerrain>(); + } + else if (NoCaseCompare(LimitClass, "BelowTerrainOrOcean") == 0) + { + Limit = std::make_shared<cVerticalLimitBelowTerrainOrOcean>(); + } + else + { + return nullptr; + } + + // Initialize the limit's parameters: + AString Params; + if (idxPipe < a_LimitDesc.length()) + { + Params = a_LimitDesc.substr(idxPipe + 1); + } + if (!Limit->InitializeFromString(Params, a_LogWarnings)) + { + return nullptr; + } + + return Limit; +} + + + + |