1 files changed, 28 insertions, 3 deletions

diff --git a/src/BlockInfo.h b/src/BlockInfo.h
index 567070a7f..bfa62a132 100644
--- a/src/BlockInfo.h
+++ b/src/BlockInfo.h
@@ -11,14 +11,27 @@ class cBlockHandler;
 
 
 
-
 // tolua_begin
 class cBlockInfo
 {
 public:
 
 	/** Returns the associated BlockInfo structure for the specified block type. */
-	static cBlockInfo & Get(BLOCKTYPE a_Type);
+	
+	/** This accessor makes sure that the cBlockInfo structures are properly initialized exactly once.
+It does so by using the C++ singleton approximation - storing the actual singleton as the function's static variable.
+It works only if it is called for the first time before the app spawns other threads. */
+	static cBlockInfo & Get(BLOCKTYPE a_Type)
+	{
+		static cBlockInfo ms_Info[256];
+		static bool IsBlockInfoInitialized = false;
+		if (!IsBlockInfoInitialized)
+		{
+			cBlockInfo::Initialize(ms_Info);
+			IsBlockInfoInitialized = true;
+		}
+		return ms_Info[a_Type];
+	}
 
 
 	/** How much light do the blocks emit on their own? */
@@ -78,7 +91,19 @@ protected:
 	typedef cBlockInfo cBlockInfoArray[256];
 
 	/** Creates a default BlockInfo structure, initializes all values to their defaults */
-	cBlockInfo();
+	cBlockInfo()
+		: m_LightValue(0x00)
+		, m_SpreadLightFalloff(0x0f)
+		, m_Transparent(false)
+		, m_OneHitDig(false)
+		, m_PistonBreakable(false)
+		, m_IsSnowable(false)
+		, m_IsSolid(true)
+		, m_FullyOccupiesVoxel(false)
+		, m_CanBeTerraformed(false)
+		, m_PlaceSound("")
+		, m_Handler(NULL)
+	{}
 
 	/** Cleans up the stored values */
 	~cBlockInfo();