From 1bc37d576ce790c1169c5f9996be7bbc8026db2c Mon Sep 17 00:00:00 2001
From: Perttu Ahola <celeron55@gmail.com>
Date: Sun, 17 Jun 2012 01:29:13 +0300
Subject: Initially split utility.h to multiple files in util/

---
 src/util/pointedthing.cpp | 125 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 125 insertions(+)
 create mode 100644 src/util/pointedthing.cpp

(limited to 'src/util/pointedthing.cpp')

diff --git a/src/util/pointedthing.cpp b/src/util/pointedthing.cpp
new file mode 100644
index 000000000..d1be2d6b6
--- /dev/null
+++ b/src/util/pointedthing.cpp
@@ -0,0 +1,125 @@
+/*
+Minetest-c55
+Copyright (C) 2010-2012 celeron55, Perttu Ahola <celeron55@gmail.com>
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU Lesser General Public License as published by
+the Free Software Foundation; either version 2.1 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public License along
+with this program; if not, write to the Free Software Foundation, Inc.,
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include "pointedthing.h"
+
+#include "serialize.h"
+#include <sstream>
+
+PointedThing::PointedThing():
+	type(POINTEDTHING_NOTHING),
+	node_undersurface(0,0,0),
+	node_abovesurface(0,0,0),
+	object_id(-1)
+{}
+
+std::string PointedThing::dump() const
+{
+	std::ostringstream os(std::ios::binary);
+	if(type == POINTEDTHING_NOTHING)
+	{
+		os<<"[nothing]";
+	}
+	else if(type == POINTEDTHING_NODE)
+	{
+		const v3s16 &u = node_undersurface;
+		const v3s16 &a = node_abovesurface;
+		os<<"[node under="<<u.X<<","<<u.Y<<","<<u.Z
+			<< " above="<<a.X<<","<<a.Y<<","<<a.Z<<"]";
+	}
+	else if(type == POINTEDTHING_OBJECT)
+	{
+		os<<"[object "<<object_id<<"]";
+	}
+	else
+	{
+		os<<"[unknown PointedThing]";
+	}
+	return os.str();
+}
+
+void PointedThing::serialize(std::ostream &os) const
+{
+	writeU8(os, 0); // version
+	writeU8(os, (u8)type);
+	if(type == POINTEDTHING_NOTHING)
+	{
+		// nothing
+	}
+	else if(type == POINTEDTHING_NODE)
+	{
+		writeV3S16(os, node_undersurface);
+		writeV3S16(os, node_abovesurface);
+	}
+	else if(type == POINTEDTHING_OBJECT)
+	{
+		writeS16(os, object_id);
+	}
+}
+
+void PointedThing::deSerialize(std::istream &is)
+{
+	int version = readU8(is);
+	if(version != 0) throw SerializationError(
+			"unsupported PointedThing version");
+	type = (PointedThingType) readU8(is);
+	if(type == POINTEDTHING_NOTHING)
+	{
+		// nothing
+	}
+	else if(type == POINTEDTHING_NODE)
+	{
+		node_undersurface = readV3S16(is);
+		node_abovesurface = readV3S16(is);
+	}
+	else if(type == POINTEDTHING_OBJECT)
+	{
+		object_id = readS16(is);
+	}
+	else
+	{
+		throw SerializationError(
+			"unsupported PointedThingType");
+	}
+}
+
+bool PointedThing::operator==(const PointedThing &pt2) const
+{
+	if(type != pt2.type)
+		return false;
+	if(type == POINTEDTHING_NODE)
+	{
+		if(node_undersurface != pt2.node_undersurface)
+			return false;
+		if(node_abovesurface != pt2.node_abovesurface)
+			return false;
+	}
+	else if(type == POINTEDTHING_OBJECT)
+	{
+		if(object_id != pt2.object_id)
+			return false;
+	}
+	return true;
+}
+
+bool PointedThing::operator!=(const PointedThing &pt2) const
+{
+	return !(*this == pt2);
+}
+
-- 
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