1 files changed, 22 insertions, 4 deletions

diff --git a/src/Generating/StructGen.h b/src/Generating/StructGen.h
index 9176bc192..55d5bc1c7 100644
--- a/src/Generating/StructGen.h
+++ b/src/Generating/StructGen.h
@@ -76,11 +76,29 @@ class cStructGenOreNests :
 	public cFinishGen
 {
 public:
-	cStructGenOreNests(int a_Seed) : m_Noise(a_Seed), m_Seed(a_Seed) {}
-	
+	struct OreInfo
+	{
+		BLOCKTYPE BlockType;  // The type of the nest.
+		int       MaxHeight;  // The highest possible a nest can occur
+		int       NumNests;   // How many nests per chunk
+		int       NestSize;   // The amount of blocks a nest can have.
+	};
+
+	typedef std::vector<OreInfo> OreList;
+
+	cStructGenOreNests(int a_Seed, OreList a_OreList, BLOCKTYPE a_ToReplace) :
+		m_Noise(a_Seed),
+		m_Seed(a_Seed),
+		m_OreList(a_OreList),
+		m_ToReplace(a_ToReplace)
+	{}
+
 protected:
-	cNoise m_Noise;
-	int    m_Seed;
+	cNoise  m_Noise;
+	int     m_Seed;
+
+	OreList   m_OreList;  // A list of possible ores.
+	BLOCKTYPE m_ToReplace;
 	
 	// cFinishGen override:
 	virtual void GenFinish(cChunkDesc & a_ChunkDesc) override;