X-Git-Url: https://git.lizzy.rs/?a=blobdiff_plain;f=src%2Fitemstackmetadata.cpp;h=7a26fbb0ea2a26661cccc0e90622b33be78ca1de;hb=a049e8267fabd101cb5c6528b3270214cb0647f0;hp=f63671425d390222397a35df81aa0a0dbbe68b10;hpb=557bbc670451f82c384032383df80a1a92ffe724;p=dragonfireclient.git

diff --git a/src/itemstackmetadata.cpp b/src/itemstackmetadata.cpp
index f63671425..7a26fbb0e 100644
--- a/src/itemstackmetadata.cpp
+++ b/src/itemstackmetadata.cpp
@@ -1,6 +1,27 @@
+/*
+Minetest
+Copyright (C) 2017-8 rubenwardy <rw@rubenwardy.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 "itemstackmetadata.h"
 #include "util/serialize.h"
 #include "util/strfnd.h"
+#include <algorithm>
 
 #define DESERIALIZE_START '\x01'
 #define DESERIALIZE_KV_DELIM '\x02'
@@ -9,6 +30,34 @@
 #define DESERIALIZE_KV_DELIM_STR "\x02"
 #define DESERIALIZE_PAIR_DELIM_STR "\x03"
 
+#define TOOLCAP_KEY "tool_capabilities"
+
+void ItemStackMetadata::clear()
+{
+	Metadata::clear();
+	updateToolCapabilities();
+}
+
+static void sanitize_string(std::string &str)
+{
+	str.erase(std::remove(str.begin(), str.end(), DESERIALIZE_START), str.end());
+	str.erase(std::remove(str.begin(), str.end(), DESERIALIZE_KV_DELIM), str.end());
+	str.erase(std::remove(str.begin(), str.end(), DESERIALIZE_PAIR_DELIM), str.end());
+}
+
+bool ItemStackMetadata::setString(const std::string &name, const std::string &var)
+{
+	std::string clean_name = name;
+	std::string clean_var = var;
+	sanitize_string(clean_name);
+	sanitize_string(clean_var);
+
+	bool result = Metadata::setString(clean_name, clean_var);
+	if (clean_name == TOOLCAP_KEY)
+		updateToolCapabilities();
+	return result;
+}
+
 void ItemStackMetadata::serialize(std::ostream &os) const
 {
 	std::ostringstream os2;
@@ -41,4 +90,29 @@ void ItemStackMetadata::deSerialize(std::istream &is)
 			m_stringvars[""] = in;
 		}
 	}
+	updateToolCapabilities();
+}
+
+void ItemStackMetadata::updateToolCapabilities()
+{
+	if (contains(TOOLCAP_KEY)) {
+		toolcaps_overridden = true;
+		toolcaps_override = ToolCapabilities();
+		std::istringstream is(getString(TOOLCAP_KEY));
+		toolcaps_override.deserializeJson(is);
+	} else {
+		toolcaps_overridden = false;
+	}
+}
+
+void ItemStackMetadata::setToolCapabilities(const ToolCapabilities &caps)
+{
+	std::ostringstream os;
+	caps.serializeJson(os);
+	setString(TOOLCAP_KEY, os.str());
+}
+
+void ItemStackMetadata::clearToolCapabilities()
+{
+	setString(TOOLCAP_KEY, "");
 }