From 447d929da18b656227c77d9c00958bcf52afeeb2 Mon Sep 17 00:00:00 2001
From: peterbell10 <peterbell10@live.co.uk>
Date: Sun, 20 Aug 2017 23:23:23 +0100
Subject: Implement anvil chunk sparsing

---
 src/ChunkData.cpp | 123 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 123 insertions(+)

(limited to 'src/ChunkData.cpp')

diff --git a/src/ChunkData.cpp b/src/ChunkData.cpp
index c2b09bafb..310945f17 100644
--- a/src/ChunkData.cpp
+++ b/src/ChunkData.cpp
@@ -422,6 +422,129 @@ void cChunkData::CopySkyLight(NIBBLETYPE * a_Dest) const
 
 
 
+void cChunkData::FillBlockTypes(BLOCKTYPE a_Value)
+{
+	// If needed, allocate any missing sections
+	if (a_Value != 0x00)
+	{
+		for (auto & Section : m_Sections)
+		{
+			if (Section == nullptr)
+			{
+				Section = Allocate();
+				std::fill(std::begin(Section->m_BlockMetas),    std::end(Section->m_BlockMetas),    0x00);
+				std::fill(std::begin(Section->m_BlockLight),    std::end(Section->m_BlockLight),    0x00);
+				std::fill(std::begin(Section->m_BlockSkyLight), std::end(Section->m_BlockSkyLight), 0xff);
+			}
+		}
+	}
+
+	for (auto Section : m_Sections)
+	{
+		if (Section != nullptr)
+		{
+			std::fill(std::begin(Section->m_BlockTypes), std::end(Section->m_BlockTypes), a_Value);
+		}
+	}
+}
+
+
+
+
+
+void cChunkData::FillMetas(NIBBLETYPE a_Value)
+{
+	// If needed, allocate any missing sections
+	if (a_Value != 0x00)
+	{
+		for (auto & Section : m_Sections)
+		{
+			if (Section == nullptr)
+			{
+				Section = Allocate();
+				std::fill(std::begin(Section->m_BlockTypes),    std::end(Section->m_BlockTypes),    0x00);
+				std::fill(std::begin(Section->m_BlockLight),    std::end(Section->m_BlockLight),    0x00);
+				std::fill(std::begin(Section->m_BlockSkyLight), std::end(Section->m_BlockSkyLight), 0xff);
+			}
+		}
+	}
+
+	NIBBLETYPE NewMeta = static_cast<NIBBLETYPE>((a_Value << 4) | a_Value);
+	for (auto Section : m_Sections)
+	{
+		if (Section != nullptr)
+		{
+			std::fill(std::begin(Section->m_BlockMetas), std::end(Section->m_BlockMetas), NewMeta);
+		}
+	}
+}
+
+
+
+
+
+void cChunkData::FillBlockLight(NIBBLETYPE a_Value)
+{
+	// If needed, allocate any missing sections
+	if (a_Value != 0x00)
+	{
+		for (auto & Section : m_Sections)
+		{
+			if (Section == nullptr)
+			{
+				Section = Allocate();
+				std::fill(std::begin(Section->m_BlockTypes), std::end(Section->m_BlockTypes), 0x00);
+				std::fill(std::begin(Section->m_BlockMetas), std::end(Section->m_BlockMetas), 0x00);
+				std::fill(std::begin(Section->m_BlockSkyLight), std::end(Section->m_BlockSkyLight), 0xff);
+			}
+		}
+	}
+
+	NIBBLETYPE NewLight = static_cast<NIBBLETYPE>((a_Value << 4) | a_Value);
+	for (auto Section : m_Sections)
+	{
+		if (Section != nullptr)
+		{
+			std::fill(std::begin(Section->m_BlockLight), std::end(Section->m_BlockLight), NewLight);
+		}
+	}
+}
+
+
+
+
+
+void cChunkData::FillSkyLight(NIBBLETYPE a_Value)
+{
+	// If needed, allocate any missing sections
+	if (a_Value != 0x0f)
+	{
+		for (auto & Section : m_Sections)
+		{
+			if (Section == nullptr)
+			{
+				Section = Allocate();
+				std::fill(std::begin(Section->m_BlockTypes), std::end(Section->m_BlockTypes), 0x00);
+				std::fill(std::begin(Section->m_BlockMetas), std::end(Section->m_BlockMetas), 0x00);
+				std::fill(std::begin(Section->m_BlockLight), std::end(Section->m_BlockLight), 0x00);
+			}
+		}
+	}
+
+	NIBBLETYPE NewSkyLight = static_cast<NIBBLETYPE>((a_Value << 4) | a_Value);
+	for (auto Section : m_Sections)
+	{
+		if (Section != nullptr)
+		{
+			std::fill(std::begin(Section->m_BlockSkyLight), std::end(Section->m_BlockSkyLight), NewSkyLight);
+		}
+	}
+}
+
+
+
+
+
 void cChunkData::SetBlockTypes(const BLOCKTYPE * a_Src)
 {
 	ASSERT(a_Src != nullptr);
-- 
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