Adjust folder structure (#242)

* Adjust folder structure

* change launcher directory name

1 files changed, 156 insertions, 0 deletions

diff --git a/NorthstarDLL/modmanager.h b/NorthstarDLL/modmanager.h
new file mode 100644
index 00000000..d605eec2
--- /dev/null
+++ b/NorthstarDLL/modmanager.h
@@ -0,0 +1,156 @@
+#pragma once
+#include "convar.h"
+#include <string>
+#include <vector>
+#include <filesystem>
+#include "rapidjson/document.h"
+#include "memalloc.h"
+
+namespace fs = std::filesystem;
+
+const std::string MOD_FOLDER_SUFFIX = "/mods";
+const fs::path MOD_OVERRIDE_DIR = "mod";
+const std::string COMPILED_ASSETS_SUFFIX = "/runtime/compiled";
+
+struct ModConVar
+{
+  public:
+	std::string Name;
+	std::string DefaultValue;
+	std::string HelpString;
+	int Flags;
+};
+
+struct ModScriptCallback
+{
+  public:
+	// would've liked to make it possible to hook arbitrary codecallbacks, but couldn't find a function that calls some ui ones
+	// std::string HookedCodeCallback;
+
+	ScriptContext Context;
+
+	// called before the codecallback is executed
+	std::string BeforeCallback;
+	// called after the codecallback has finished executing
+	std::string AfterCallback;
+};
+
+struct ModScript
+{
+  public:
+	std::string Path;
+	std::string RsonRunOn;
+
+	std::vector<ModScriptCallback> Callbacks;
+};
+
+// these are pretty much identical, could refactor to use the same stuff?
+struct ModVPKEntry
+{
+  public:
+	bool m_bAutoLoad;
+	std::string m_sVpkPath;
+};
+
+struct ModRpakEntry
+{
+  public:
+	bool m_bAutoLoad;
+	std::string m_sPakName;
+	std::string m_sLoadAfterPak;
+};
+
+class Mod
+{
+  public:
+	// runtime stuff
+	fs::path ModDirectory;
+	bool Enabled = true;
+
+	// mod.json stuff:
+
+	// the mod's name
+	std::string Name;
+	// the mod's description
+	std::string Description;
+	// the mod's version, should be in semver
+	std::string Version;
+	// a download link to the mod, for clients that try to join without the mod
+	std::string DownloadLink;
+
+	// whether clients need the mod to join servers running this mod
+	bool RequiredOnClient;
+	// the priority for this mod's files, mods with prio 0 are loaded first, then 1, then 2, etc
+	int LoadPriority;
+
+	// custom scripts used by the mod
+	std::vector<ModScript> Scripts;
+	// convars created by the mod
+	std::vector<ModConVar*> ConVars;
+	// custom localisation files created by the mod
+	std::vector<std::string> LocalisationFiles;
+
+	// other files:
+
+	std::vector<ModVPKEntry> Vpks;
+	std::unordered_map<size_t, std::string> KeyValues;
+	std::vector<std::string> BinkVideos;
+	std::string Pdiff; // only need one per mod
+
+	std::vector<ModRpakEntry> Rpaks;
+	std::unordered_map<std::string, std::string>
+		RpakAliases; // paks we alias to other rpaks, e.g. to load sp_crashsite paks on the map mp_crashsite
+	// iterated over to create squirrel VM constants depending if a mod exists or not.
+	// this only exists because we cannot access g_ModManager whilst mods are being loaded for the first time for some reason.
+	std::unordered_map<std::string, std::string> DependencyConstants;
+
+	// other stuff
+
+	bool wasReadSuccessfully = false;
+
+  public:
+	Mod(fs::path modPath, char* jsonBuf);
+};
+
+struct ModOverrideFile
+{
+  public:
+	Mod* owningMod;
+	fs::path path;
+};
+
+class ModManager
+{
+  private:
+	bool m_hasLoadedMods = false;
+	bool m_hasEnabledModsCfg;
+	rapidjson_document m_enabledModsCfg;
+
+	// precalculated hashes
+	size_t m_hScriptsRsonHash;
+	size_t m_hPdefHash;
+
+  public:
+	std::vector<Mod> m_loadedMods;
+	std::unordered_map<std::string, ModOverrideFile> m_modFiles;
+	// iterated over to create squirrel VM constants depending if a mod exists or not.
+	// here because constants are global anyways.
+	std::unordered_map<std::string, std::string> DependencyConstants;
+
+  public:
+	ModManager();
+	void LoadMods();
+	void UnloadMods();
+	void CompileAssetsForFile(const char* filename);
+
+	// compile asset type stuff, these are done in files under Mods/Compiled/
+	void BuildScriptsRson();
+	void TryBuildKeyValues(const char* filename);
+	void BuildPdef();
+};
+
+void InitialiseModManager(HMODULE baseAddress);
+fs::path GetModFolderPath();
+fs::path GetCompiledAssetsPath();
+
+extern ModManager* g_ModManager;
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