From 9d412dd0754ce9eadf0f6122437d66d1dbfbf35c Mon Sep 17 00:00:00 2001
From: Loic Blot <loic.blot@unix-experience.fr>
Date: Wed, 26 Jul 2017 23:11:46 +0200
Subject: Remove unused Map::getDayNightDiff + fix one undefined variable in
 mapblock.cpp

---
 src/map.cpp      | 57 --------------------------------------------------------
 src/map.h        |  9 ---------
 src/mapblock.cpp |  4 ++--
 3 files changed, 2 insertions(+), 68 deletions(-)

diff --git a/src/map.cpp b/src/map.cpp
index d4734cdc6..972c666e4 100644
--- a/src/map.cpp
+++ b/src/map.cpp
@@ -362,63 +362,6 @@ bool Map::removeNodeWithEvent(v3s16 p)
 	return succeeded;
 }
 
-bool Map::getDayNightDiff(v3s16 blockpos)
-{
-	try{
-		v3s16 p = blockpos + v3s16(0,0,0);
-		MapBlock *b = getBlockNoCreate(p);
-		if(b->getDayNightDiff())
-			return true;
-	}
-	catch(InvalidPositionException &e){}
-	// Leading edges
-	try{
-		v3s16 p = blockpos + v3s16(-1,0,0);
-		MapBlock *b = getBlockNoCreate(p);
-		if(b->getDayNightDiff())
-			return true;
-	}
-	catch(InvalidPositionException &e){}
-	try{
-		v3s16 p = blockpos + v3s16(0,-1,0);
-		MapBlock *b = getBlockNoCreate(p);
-		if(b->getDayNightDiff())
-			return true;
-	}
-	catch(InvalidPositionException &e){}
-	try{
-		v3s16 p = blockpos + v3s16(0,0,-1);
-		MapBlock *b = getBlockNoCreate(p);
-		if(b->getDayNightDiff())
-			return true;
-	}
-	catch(InvalidPositionException &e){}
-	// Trailing edges
-	try{
-		v3s16 p = blockpos + v3s16(1,0,0);
-		MapBlock *b = getBlockNoCreate(p);
-		if(b->getDayNightDiff())
-			return true;
-	}
-	catch(InvalidPositionException &e){}
-	try{
-		v3s16 p = blockpos + v3s16(0,1,0);
-		MapBlock *b = getBlockNoCreate(p);
-		if(b->getDayNightDiff())
-			return true;
-	}
-	catch(InvalidPositionException &e){}
-	try{
-		v3s16 p = blockpos + v3s16(0,0,1);
-		MapBlock *b = getBlockNoCreate(p);
-		if(b->getDayNightDiff())
-			return true;
-	}
-	catch(InvalidPositionException &e){}
-
-	return false;
-}
-
 struct TimeOrderedMapBlock {
 	MapSector *sect;
 	MapBlock *block;
diff --git a/src/map.h b/src/map.h
index 377e75ed0..c3a1c1897 100644
--- a/src/map.h
+++ b/src/map.h
@@ -216,15 +216,6 @@ public:
 	bool addNodeWithEvent(v3s16 p, MapNode n, bool remove_metadata = true);
 	bool removeNodeWithEvent(v3s16 p);
 
-	/*
-		Takes the blocks at the edges into account
-	*/
-	bool getDayNightDiff(v3s16 blockpos);
-
-	//core::aabbox3d<s16> getDisplayedBlockArea();
-
-	//bool updateChangedVisibleArea();
-
 	// Call these before and after saving of many blocks
 	virtual void beginSave() { return; }
 	virtual void endSave() { return; }
diff --git a/src/mapblock.cpp b/src/mapblock.cpp
index ed4f09692..910e91316 100644
--- a/src/mapblock.cpp
+++ b/src/mapblock.cpp
@@ -361,7 +361,7 @@ void MapBlock::actuallyUpdateDayNightDiff()
 		return;
 	}
 
-	bool differs;
+	bool differs = false;
 
 	/*
 		Check if any lighting value differs
@@ -465,7 +465,7 @@ static void getBlockNodeIdMapping(NameIdMapping *nimap, MapNode *nodes,
 
 			const ContentFeatures &f = nodedef->get(global_id);
 			const std::string &name = f.name;
-			if(name == "")
+			if (name.empty())
 				unknown_contents.insert(global_id);
 			else
 				nimap->set(id, name);
-- 
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