1 files changed, 105 insertions, 0 deletions
diff --git a/meshmc/launcher/Version.cpp b/meshmc/launcher/Version.cpp
new file mode 100644
index 0000000000..9dbc77569f
--- /dev/null
+++ b/meshmc/launcher/Version.cpp
@@ -0,0 +1,105 @@
+/* SPDX-FileCopyrightText: 2026 Project Tick
+ * SPDX-FileContributor: Project Tick
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ *
+ *   MeshMC - A Custom Launcher for Minecraft
+ *   Copyright (C) 2026 Project Tick
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation, either version 3 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 General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include "Version.h"
+
+#include <QStringList>
+#include <QUrl>
+#include <QRegularExpression>
+#include <QRegularExpressionMatch>
+
+Version::Version(const QString& str) : m_string(str)
+{
+	parse();
+}
+
+bool Version::operator<(const Version& other) const
+{
+	const int size = qMax(m_sections.size(), other.m_sections.size());
+	for (int i = 0; i < size; ++i) {
+		const Section sec1 =
+			(i >= m_sections.size()) ? Section("0") : m_sections.at(i);
+		const Section sec2 = (i >= other.m_sections.size())
+								 ? Section("0")
+								 : other.m_sections.at(i);
+		if (sec1 != sec2) {
+			return sec1 < sec2;
+		}
+	}
+
+	return false;
+}
+bool Version::operator<=(const Version& other) const
+{
+	return *this < other || *this == other;
+}
+bool Version::operator>(const Version& other) const
+{
+	const int size = qMax(m_sections.size(), other.m_sections.size());
+	for (int i = 0; i < size; ++i) {
+		const Section sec1 =
+			(i >= m_sections.size()) ? Section("0") : m_sections.at(i);
+		const Section sec2 = (i >= other.m_sections.size())
+								 ? Section("0")
+								 : other.m_sections.at(i);
+		if (sec1 != sec2) {
+			return sec1 > sec2;
+		}
+	}
+
+	return false;
+}
+bool Version::operator>=(const Version& other) const
+{
+	return *this > other || *this == other;
+}
+bool Version::operator==(const Version& other) const
+{
+	const int size = qMax(m_sections.size(), other.m_sections.size());
+	for (int i = 0; i < size; ++i) {
+		const Section sec1 =
+			(i >= m_sections.size()) ? Section("0") : m_sections.at(i);
+		const Section sec2 = (i >= other.m_sections.size())
+								 ? Section("0")
+								 : other.m_sections.at(i);
+		if (sec1 != sec2) {
+			return false;
+		}
+	}
+
+	return true;
+}
+bool Version::operator!=(const Version& other) const
+{
+	return !operator==(other);
+}
+
+void Version::parse()
+{
+	m_sections.clear();
+
+	// FIXME: this is bad. versions can contain a lot more separators...
+	QStringList parts = m_string.split('.');
+
+	for (const auto& part : parts) {
+		m_sections.append(Section(part));
+	}
+}