1 files changed, 0 insertions, 262 deletions
diff --git a/source/LineBlockTracer.cpp b/source/LineBlockTracer.cpp
deleted file mode 100644
index 7cc14089d..000000000
--- a/source/LineBlockTracer.cpp
+++ /dev/null
@@ -1,262 +0,0 @@
-
-// LineBlockTracer.cpp
-
-// Implements the cLineBlockTracer class representing a cBlockTracer that traces along a straight line between two points
-
-#include "Globals.h"
-#include "LineBlockTracer.h"
-#include "Vector3d.h"
-#include "World.h"
-#include "Chunk.h"
-
-
-
-
-
-
-cLineBlockTracer::cLineBlockTracer(cWorld & a_World, cCallbacks & a_Callbacks) :
-	super(a_World, a_Callbacks)
-{
-}
-
-
-
-
-
-bool cLineBlockTracer::Trace(cWorld & a_World, cBlockTracer::cCallbacks & a_Callbacks, const Vector3d & a_Start, const Vector3d & a_End)
-{
-	cLineBlockTracer Tracer(a_World, a_Callbacks);
-	return Tracer.Trace(a_Start.x, a_Start.y, a_Start.z, a_End.x, a_End.y, a_End.z);
-}
-
-
-
-
-
-bool cLineBlockTracer::Trace(cWorld & a_World, cBlockTracer::cCallbacks &a_Callbacks, double a_StartX, double a_StartY, double a_StartZ, double a_EndX, double a_EndY, double a_EndZ)
-{
-	cLineBlockTracer Tracer(a_World, a_Callbacks);
-	return Tracer.Trace(a_StartX, a_StartY, a_StartZ, a_EndX, a_EndY, a_EndZ);
-}
-
-
-
-
-
-bool cLineBlockTracer::Trace(double a_StartX, double a_StartY, double a_StartZ, double a_EndX, double a_EndY, double a_EndZ)
-{
-	// Initialize the member veriables:
-	m_StartX = a_StartX;
-	m_StartY = a_StartY;
-	m_StartZ = a_StartZ;
-	m_EndX = a_EndX;
-	m_EndY = a_EndY;
-	m_EndZ = a_EndZ;
-	m_DirX = (m_StartX < m_EndX) ? 1 : -1;
-	m_DirY = (m_StartY < m_EndY) ? 1 : -1;
-	m_DirZ = (m_StartZ < m_EndZ) ? 1 : -1;
-	m_CurrentFace = BLOCK_FACE_NONE;
-	
-	// Check the start coords, adjust into the world:
-	if (m_StartY < 0)
-	{
-		if (m_EndY < 0)
-		{
-			// Nothing to trace
-			m_Callbacks->OnNoMoreHits();
-			return true;
-		}
-		FixStartBelowWorld();
-		m_Callbacks->OnIntoWorld(m_StartX, m_StartY, m_StartZ);
-	}
-	else if (m_StartY >= cChunkDef::Height)
-	{
-		if (m_EndY >= cChunkDef::Height)
-		{
-			m_Callbacks->OnNoMoreHits();
-			return true;
-		}
-		FixStartAboveWorld();
-		m_Callbacks->OnIntoWorld(m_StartX, m_StartY, m_StartZ);
-	}
-
-	m_CurrentX = (int)floor(m_StartX);
-	m_CurrentY = (int)floor(m_StartY);
-	m_CurrentZ = (int)floor(m_StartZ);
-	
-	m_DiffX = m_EndX - m_StartX;
-	m_DiffY = m_EndY - m_StartY;
-	m_DiffZ = m_EndZ - m_StartZ;
-	
-	// The actual trace is handled with ChunkMapCS locked by calling our Item() for the specified chunk
-	int BlockX = (int)floor(m_StartX);
-	int BlockZ = (int)floor(m_StartZ);
-	int ChunkX, ChunkZ;
-	cChunkDef::BlockToChunk(BlockX, BlockZ, ChunkX, ChunkZ);
-	return m_World->DoWithChunk(ChunkX, ChunkZ, *this);
-}
-
-
-
-
-
-void cLineBlockTracer::FixStartAboveWorld(void)
-{
-	// We must set the start Y to less than cChunkDef::Height so that it is considered inside the world later on
-	// Therefore we use an EPS-offset from the height, as small as reasonably possible.
-	const double Height = (double)cChunkDef::Height - 0.00001;
-	CalcXZIntersection(Height, m_StartX, m_StartZ);
-	m_StartY = Height;
-}
-
-
-
-
-
-void cLineBlockTracer::FixStartBelowWorld(void)
-{
-	CalcXZIntersection(0, m_StartX, m_StartZ);
-	m_StartY = 0;
-}
-
-
-
-
-
-void cLineBlockTracer::CalcXZIntersection(double a_Y, double & a_IntersectX, double & a_IntersectZ)
-{
-	double Ratio = (m_StartY - a_Y) / (m_StartY - m_EndY);
-	a_IntersectX = m_StartX + (m_EndX - m_StartX) * Ratio;
-	a_IntersectZ = m_StartZ + (m_EndZ - m_StartZ) * Ratio;
-}
-
-
-
-
-
-bool cLineBlockTracer::MoveToNextBlock(void)
-{
-	// Find out which of the current block's walls gets hit by the path:
-	static const double EPS = 0.00001;
-	double Coeff = 1;
-	enum eDirection
-	{
-		dirNONE,
-		dirX,
-		dirY,
-		dirZ,
-	} Direction = dirNONE;
-	if (abs(m_DiffX) > EPS)
-	{
-		double DestX = (m_DirX > 0) ? (m_CurrentX + 1) : m_CurrentX;
-		Coeff = (DestX - m_StartX) / m_DiffX;
-		if (Coeff <= 1)
-		{
-			Direction = dirX;
-		}
-	}
-	if (abs(m_DiffY) > EPS)
-	{
-		double DestY = (m_DirY > 0) ? (m_CurrentY + 1) : m_CurrentY;
-		double CoeffY = (DestY - m_StartY) / m_DiffY;
-		if (CoeffY < Coeff)
-		{
-			Coeff = CoeffY;
-			Direction = dirY;
-		}
-	}
-	if (abs(m_DiffZ) > EPS)
-	{
-		double DestZ = (m_DirZ > 0) ? (m_CurrentZ + 1) : m_CurrentZ;
-		double CoeffZ = (DestZ - m_StartZ) / m_DiffZ;
-		if (CoeffZ < Coeff)
-		{
-			Coeff = CoeffZ;
-			Direction = dirZ;
-		}
-	}
-	
-	// Based on the wall hit, adjust the current coords
-	switch (Direction)
-	{
-		case dirX:    m_CurrentX += m_DirX; m_CurrentFace = (m_DirX > 0) ? BLOCK_FACE_EAST   : BLOCK_FACE_WEST;  break;
-		case dirY:    m_CurrentY += m_DirY; m_CurrentFace = (m_DirY > 0) ? BLOCK_FACE_BOTTOM : BLOCK_FACE_TOP;   break;
-		case dirZ:    m_CurrentZ += m_DirZ; m_CurrentFace = (m_DirZ > 0) ? BLOCK_FACE_SOUTH  : BLOCK_FACE_NORTH; break;
-		case dirNONE: return false;
-	}
-	return true;
-}
-
-
-
-
-
-bool cLineBlockTracer::Item(cChunk * a_Chunk)
-{
-	ASSERT((m_CurrentY >= 0) && (m_CurrentY < cChunkDef::Height));  // This should be provided by FixStartAboveWorld() / FixStartBelowWorld()
-	
-	// This is the actual line tracing loop.
-	bool Finished = false;
-	while (true)
-	{
-		// Report the current block through the callbacks:
-		if (a_Chunk == NULL)
-		{
-			m_Callbacks->OnNoChunk();
-			return false;
-		}
-		if (a_Chunk->IsValid())
-		{
-			BLOCKTYPE BlockType;
-			NIBBLETYPE BlockMeta;
-			int RelX = m_CurrentX - a_Chunk->GetPosX() * cChunkDef::Width;
-			int RelZ = m_CurrentZ - a_Chunk->GetPosZ() * cChunkDef::Width;
-			a_Chunk->GetBlockTypeMeta(RelX, m_CurrentY, RelZ, BlockType, BlockMeta);
-			if (m_Callbacks->OnNextBlock(m_CurrentX, m_CurrentY, m_CurrentZ, BlockType, BlockMeta, m_CurrentFace))
-			{
-				// The callback terminated the trace
-				return false;
-			}
-		}
-		else
-		{
-			if (m_Callbacks->OnNextBlockNoData(m_CurrentX, m_CurrentY, m_CurrentZ, m_CurrentFace))
-			{
-				// The callback terminated the trace
-				return false;
-			}
-		}
-		
-		// Move to next block
-		if (!MoveToNextBlock())
-		{
-			// We've reached the end
-			m_Callbacks->OnNoMoreHits();
-			return true;
-		}
-		
-		// Update the current chunk
-		if (a_Chunk != NULL)
-		{
-			a_Chunk = a_Chunk->GetNeighborChunk(m_CurrentX, m_CurrentZ);
-		}
-		
-		if ((m_CurrentY < 0) || (m_CurrentY >= cChunkDef::Height))
-		{
-			// We've gone out of the world, that's the end of this trace
-			double IntersectX, IntersectZ;
-			CalcXZIntersection(m_CurrentY, IntersectX, IntersectZ);
-			if (m_Callbacks->OnOutOfWorld(IntersectX, m_CurrentY, IntersectZ))
-			{
-				// The callback terminated the trace
-				return false;
-			}
-			m_Callbacks->OnNoMoreHits();
-			return true;
-		}
-	}
-}
-
-
-
-