Add 'meshmc/' from commit 'fad6a1066616b69d7f5fef01178efdf014c59537'

git-subtree-dir: meshmc
git-subtree-mainline: 934382c8a1ce738589dee9ee0f14e1cec812770e
git-subtree-split: fad6a1066616b69d7f5fef01178efdf014c59537

1 files changed, 316 insertions, 0 deletions

diff --git a/meshmc/launcher/minecraft/LaunchProfile.cpp b/meshmc/launcher/minecraft/LaunchProfile.cpp
new file mode 100644
index 0000000000..a94a6d83a6
--- /dev/null
+++ b/meshmc/launcher/minecraft/LaunchProfile.cpp
@@ -0,0 +1,316 @@
+/* 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 "LaunchProfile.h"
+#include <Version.h>
+
+void LaunchProfile::clear()
+{
+	m_minecraftVersion.clear();
+	m_minecraftVersionType.clear();
+	m_minecraftAssets.reset();
+	m_minecraftArguments.clear();
+	m_tweakers.clear();
+	m_mainClass.clear();
+	m_appletClass.clear();
+	m_libraries.clear();
+	m_mavenFiles.clear();
+	m_traits.clear();
+	m_jarMods.clear();
+	m_mainJar.reset();
+	m_problemSeverity = ProblemSeverity::None;
+}
+
+static void applyString(const QString& from, QString& to)
+{
+	if (from.isEmpty())
+		return;
+	to = from;
+}
+
+void LaunchProfile::applyMinecraftVersion(const QString& id)
+{
+	applyString(id, this->m_minecraftVersion);
+}
+
+void LaunchProfile::applyAppletClass(const QString& appletClass)
+{
+	applyString(appletClass, this->m_appletClass);
+}
+
+void LaunchProfile::applyMainClass(const QString& mainClass)
+{
+	applyString(mainClass, this->m_mainClass);
+}
+
+void LaunchProfile::applyMinecraftArguments(const QString& minecraftArguments)
+{
+	applyString(minecraftArguments, this->m_minecraftArguments);
+}
+
+void LaunchProfile::applyMinecraftVersionType(const QString& type)
+{
+	applyString(type, this->m_minecraftVersionType);
+}
+
+void LaunchProfile::applyMinecraftAssets(MojangAssetIndexInfo::Ptr assets)
+{
+	if (assets) {
+		m_minecraftAssets = assets;
+	}
+}
+
+void LaunchProfile::applyTraits(const QSet<QString>& traits)
+{
+	this->m_traits.unite(traits);
+}
+
+void LaunchProfile::applyTweakers(const QStringList& tweakers)
+{
+	// if the applied tweakers override an existing one, skip it. this
+	// effectively moves it later in the sequence
+	QStringList newTweakers;
+	for (auto& tweaker : m_tweakers) {
+		if (tweakers.contains(tweaker)) {
+			continue;
+		}
+		newTweakers.append(tweaker);
+	}
+	// then just append the new tweakers (or moved original ones)
+	newTweakers += tweakers;
+	m_tweakers = newTweakers;
+}
+
+void LaunchProfile::applyJarMods(const QList<LibraryPtr>& jarMods)
+{
+	this->m_jarMods.append(jarMods);
+}
+
+static int findLibraryByName(QList<LibraryPtr>* haystack,
+							 const GradleSpecifier& needle)
+{
+	int retval = -1;
+	for (int i = 0; i < haystack->size(); ++i) {
+		if (haystack->at(i)->rawName().matchName(needle)) {
+			// only one is allowed.
+			if (retval != -1)
+				return -1;
+			retval = i;
+		}
+	}
+	return retval;
+}
+
+void LaunchProfile::applyMods(const QList<LibraryPtr>& mods)
+{
+	QList<LibraryPtr>* list = &m_mods;
+	for (auto& mod : mods) {
+		auto modCopy = Library::limitedCopy(mod);
+
+		// find the mod by name.
+		const int index = findLibraryByName(list, mod->rawName());
+		// mod not found? just add it.
+		if (index < 0) {
+			list->append(modCopy);
+			return;
+		}
+
+		auto existingLibrary = list->at(index);
+		// if we are higher it means we should update
+		if (Version(mod->version()) > Version(existingLibrary->version())) {
+			list->replace(index, modCopy);
+		}
+	}
+}
+
+void LaunchProfile::applyLibrary(LibraryPtr library)
+{
+	if (!library->isActive()) {
+		return;
+	}
+
+	QList<LibraryPtr>* list = &m_libraries;
+	if (library->isNative()) {
+		list = &m_nativeLibraries;
+	}
+
+	auto libraryCopy = Library::limitedCopy(library);
+
+	// find the library by name.
+	const int index = findLibraryByName(list, library->rawName());
+	// library not found? just add it.
+	if (index < 0) {
+		list->append(libraryCopy);
+		return;
+	}
+
+	auto existingLibrary = list->at(index);
+	// if we are higher it means we should update
+	if (Version(library->version()) > Version(existingLibrary->version())) {
+		list->replace(index, libraryCopy);
+	}
+}
+
+void LaunchProfile::applyMavenFile(LibraryPtr mavenFile)
+{
+	if (!mavenFile->isActive()) {
+		return;
+	}
+
+	if (mavenFile->isNative()) {
+		return;
+	}
+
+	// unlike libraries, we do not keep only one version or try to dedupe them
+	m_mavenFiles.append(Library::limitedCopy(mavenFile));
+}
+
+const LibraryPtr LaunchProfile::getMainJar() const
+{
+	return m_mainJar;
+}
+
+void LaunchProfile::applyMainJar(LibraryPtr jar)
+{
+	if (jar) {
+		m_mainJar = jar;
+	}
+}
+
+void LaunchProfile::applyProblemSeverity(ProblemSeverity severity)
+{
+	if (m_problemSeverity < severity) {
+		m_problemSeverity = severity;
+	}
+}
+
+const QList<PatchProblem> LaunchProfile::getProblems() const
+{
+	// FIXME: implement something that actually makes sense here
+	return {};
+}
+
+QString LaunchProfile::getMinecraftVersion() const
+{
+	return m_minecraftVersion;
+}
+
+QString LaunchProfile::getAppletClass() const
+{
+	return m_appletClass;
+}
+
+QString LaunchProfile::getMainClass() const
+{
+	return m_mainClass;
+}
+
+const QSet<QString>& LaunchProfile::getTraits() const
+{
+	return m_traits;
+}
+
+const QStringList& LaunchProfile::getTweakers() const
+{
+	return m_tweakers;
+}
+
+bool LaunchProfile::hasTrait(const QString& trait) const
+{
+	return m_traits.contains(trait);
+}
+
+ProblemSeverity LaunchProfile::getProblemSeverity() const
+{
+	return m_problemSeverity;
+}
+
+QString LaunchProfile::getMinecraftVersionType() const
+{
+	return m_minecraftVersionType;
+}
+
+std::shared_ptr<MojangAssetIndexInfo> LaunchProfile::getMinecraftAssets() const
+{
+	if (!m_minecraftAssets) {
+		return std::make_shared<MojangAssetIndexInfo>("legacy");
+	}
+	return m_minecraftAssets;
+}
+
+QString LaunchProfile::getMinecraftArguments() const
+{
+	return m_minecraftArguments;
+}
+
+const QList<LibraryPtr>& LaunchProfile::getJarMods() const
+{
+	return m_jarMods;
+}
+
+const QList<LibraryPtr>& LaunchProfile::getLibraries() const
+{
+	return m_libraries;
+}
+
+const QList<LibraryPtr>& LaunchProfile::getNativeLibraries() const
+{
+	return m_nativeLibraries;
+}
+
+const QList<LibraryPtr>& LaunchProfile::getMavenFiles() const
+{
+	return m_mavenFiles;
+}
+
+void LaunchProfile::getLibraryFiles(const QString& architecture,
+									QStringList& jars, QStringList& nativeJars,
+									const QString& overridePath,
+									const QString& tempPath) const
+{
+	QStringList native32, native64;
+	jars.clear();
+	nativeJars.clear();
+	for (auto lib : getLibraries()) {
+		lib->getApplicableFiles(currentSystem, jars, nativeJars, native32,
+								native64, overridePath);
+	}
+	// NOTE: order is important here, add main jar last to the lists
+	if (m_mainJar) {
+		// FIXME: HACK!! jar modding is weird and unsystematic!
+		if (m_jarMods.size()) {
+			QDir tempDir(tempPath);
+			jars.append(tempDir.absoluteFilePath("minecraft.jar"));
+		} else {
+			m_mainJar->getApplicableFiles(currentSystem, jars, nativeJars,
+										  native32, native64, overridePath);
+		}
+	}
+	for (auto lib : getNativeLibraries()) {
+		lib->getApplicableFiles(currentSystem, jars, nativeJars, native32,
+								native64, overridePath);
+	}
+	if (architecture == "32") {
+		nativeJars.append(native32);
+	} else if (architecture == "64") {
+		nativeJars.append(native64);
+	}
+}