From a588857ed0783712a581030807642f54f3d01d3c Mon Sep 17 00:00:00 2001
From: Matthias Schiffer <mschiffer@universe-factory.net>
Date: Sat, 21 Jul 2018 00:04:35 +0200
Subject: NBT: add support for LongArray tags

---
 src/NBT/LongArrayTag.hpp | 74 ++++++++++++++++++++++++++++++++++++++++++++++++
 src/NBT/Tag.cpp          | 11 +++++++
 src/NBT/Tag.hpp          |  1 +
 3 files changed, 86 insertions(+)
 create mode 100644 src/NBT/LongArrayTag.hpp

diff --git a/src/NBT/LongArrayTag.hpp b/src/NBT/LongArrayTag.hpp
new file mode 100644
index 0000000..6cd910f
--- /dev/null
+++ b/src/NBT/LongArrayTag.hpp
@@ -0,0 +1,74 @@
+/*
+  Copyright (c) 2015-2018, Matthias Schiffer <mschiffer@universe-factory.net>
+  All rights reserved.
+
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions are met:
+
+    1. Redistributions of source code must retain the above copyright notice,
+       this list of conditions and the following disclaimer.
+    2. Redistributions in binary form must reproduce the above copyright notice,
+       this list of conditions and the following disclaimer in the documentation
+       and/or other materials provided with the distribution.
+
+  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+  DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+  FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+  DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+  SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+  CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+  OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+
+#pragma once
+
+#include "Tag.hpp"
+
+#include <vector>
+
+
+namespace MinedMap {
+namespace NBT {
+
+class LongArrayTag : public Tag {
+private:
+	friend class Tag;
+
+	uint32_t len;
+	const uint8_t *ptr;
+
+	LongArrayTag(Buffer *buffer) {
+		len = buffer->get32();
+		ptr = buffer->get(8*len);
+	}
+
+public:
+	virtual Type getType() const {
+		return Type::LongArray;
+	}
+
+	virtual void print(std::ostream& os, const std::string &indent) const {
+		os << "(" << len << ") [" << std::endl;
+
+		std::string inner = indent + "  ";
+
+		for (size_t i = 0; i < len; i++) {
+			uint64_t v = Buffer::parse64(&ptr[4*i]);
+
+			os << inner
+			   << v << " / "
+			   << (int64_t)v << " / "
+			   << std::hex << "0x" << v << std::dec
+			   << std::endl;
+		}
+
+		os << indent << "]";
+	}
+};
+
+}
+}
diff --git a/src/NBT/Tag.cpp b/src/NBT/Tag.cpp
index c75cb9f..33dac83 100644
--- a/src/NBT/Tag.cpp
+++ b/src/NBT/Tag.cpp
@@ -38,6 +38,7 @@
 #include "ListTag.hpp"
 #include "CompoundTag.hpp"
 #include "IntArrayTag.hpp"
+#include "LongArrayTag.hpp"
 
 
 #include <stdexcept>
@@ -84,6 +85,9 @@ std::shared_ptr<const Tag> Tag::readTag(Type type, Buffer *buffer) {
 	case Type::IntArray:
 		return std::shared_ptr<IntArrayTag>(new IntArrayTag(buffer));
 
+	case Type::LongArray:
+		return std::shared_ptr<LongArrayTag>(new LongArrayTag(buffer));
+
 	default:
 		throw std::runtime_error("Tag::readTag: unknown tag type");
 	}
@@ -129,6 +133,9 @@ std::shared_ptr<const Tag> Tag::readList(Buffer *buffer) {
 	case Type::IntArray:
 		return std::shared_ptr<Tag>(new ListTag<IntArrayTag>(type, buffer));
 
+	case Type::LongArray:
+		return std::shared_ptr<Tag>(new ListTag<LongArrayTag>(type, buffer));
+
 	default:
 		throw std::runtime_error("Tag::readList: unknown tag type");
 	}
@@ -195,6 +202,10 @@ std::ostream& operator<<(std::ostream& os, Tag::Type type) {
 		os << "IntArray";
 		break;
 
+	case Tag::Type::LongArray:
+		os << "LongArray";
+		break;
+
 	default:
 		os.setstate(std::ios_base::failbit);
 	}
diff --git a/src/NBT/Tag.hpp b/src/NBT/Tag.hpp
index bb71b23..b0c20af 100644
--- a/src/NBT/Tag.hpp
+++ b/src/NBT/Tag.hpp
@@ -54,6 +54,7 @@ public:
 		List = 9,
 		Compound = 10,
 		IntArray = 11,
+		LongArray = 12,
 	};
 
 	static std::shared_ptr<const Tag> readTag(Type type, Buffer *buffer);
-- 
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