feat(console): load console variables from WTF files

src/client/Client.cpp

@@ -136,6 +136,24 @@ int32_t InitializeEngineCallback(const void* a1, void* a2) {
     return 1;
 }
 
+void SetPaths() {
+    // SFile::DisableSFileCheckDisk();
+    // SFile::EnableDirectAccess(0);
+
+    char buffer[STORM_MAX_PATH] = {0};
+
+    const char* datadir = CmdLineGetString(CMD_DATA_DIR);
+    if (*datadir == '\0') {
+        OsGetExePath(buffer, STORM_MAX_PATH);
+        datadir = buffer;
+    }
+
+    SFile::SetBasePath(datadir);
+    SFile::SetDataPath("Data\\");
+
+    OsSetCurrentDirectory(datadir);
+}
+
 int32_t InitializeGlobal() {
     // TODO
 
@@ -155,10 +173,11 @@ int32_t InitializeGlobal() {
 
     // ClientServices::LoadCDKey();
 
+    SetPaths();
+
     ConsoleInitializeClientCommand();
 
-    ConsoleInitializeClientCVar("Config.wtf");
-
+    CVar::Initialize("Config.wtf");
     // sub_7663F0();
 
     // v18 = 0;

src/console/CVar.cpp

@@ -3,6 +3,8 @@
 #include "console/Types.hpp"
 #include "console/Line.hpp"
 
+
+#include <bc/os/File.hpp>
 #include <storm/String.hpp>
 
 bool CVar::m_needsSave;
@@ -165,6 +167,103 @@ int32_t CVar::Update() {
     return 1;
 }
 
+static int32_t s_CreatePathDirectories(const char* szPath) {
+    return true == OsCreateDirectory(szPath, 1);
+}
+
+int32_t CVar::Load(HOSFILE file) {
+    char fastData[2048] = {0};
+    char line[2048] = {0};
+
+    auto size = OsGetFileSize(file);
+
+    char* data = nullptr;
+
+    if (0x1fff < size) {
+        data = SMemAlloc(size + 1, __FILE__, __LINE__, 0);
+    } else {
+        data = fastData;
+    }
+
+    auto grown = 0x1FFF >= size;
+
+    int32_t result    = 0;
+    size_t  bytesRead = 0;
+
+    if (OsReadFile(file, data, size, &bytesRead) == 0) {
+        result = 0;
+    } else {
+        data[size] = '\0';
+        auto curr = data;
+
+        // Skip over UTF-8 byte order mark
+        if ((((data != nullptr) && (2 < bytesRead)) && (data[0] == 0xef)) && ((data[1] == 0xbb && (data[2] == 0xbf)))) {
+            curr = data + 3;
+        }
+
+        do {
+            SStrTokenize(&curr, line, 0x800, "\r\n", 0);
+
+            // Do not execute commands other than "set ..."
+            if (SStrCmpI(line, "SET ", 4) == 0) {
+                // Execute without adding to history
+                ConsoleCommandExecute(line, 0);
+            }
+
+            result = 1;
+        } while ((curr != nullptr) && (*curr != '\0'))
+    }
+
+    if (grown) {
+        SMemFree(data, __FILE__, __LINE__, 0);
+    }
+
+    return result;
+}
+
+int32_t CVar::Load(const char* filename) {
+    char path[STORM_MAX_PATH] = {0};
+
+    auto file = OsCreateFile(filename, OS_GENERIC_READ, 0, OS_CREATE_NEW | OS_CREATE_ALWAYS, OS_FILE_ATTRIBUTE_NORMAL, 0x3f3f3f3f);
+
+    if (file == HOSFILE_INVALID) {
+        SStrPrintf(path, STORM_MAX_PATH, "WTF\\%s", filename);
+        file = OsCreateFile(filename, OS_GENERIC_READ, 0, OS_CREATE_NEW | OS_CREATE_ALWAYS, OS_FILE_ATTRIBUTE_NORMAL, 0x3f3f3f3f);
+        if (file == HOSFILE_INVALID) {
+            return 0;
+        }
+    }
+
+    auto result = CVar::Load(file);
+
+    OsCloseFile(file);
+
+    return result;
+}
+
+void CVar::Initialize(const char* filename) {
+    STORM_ASSERT(filename);
+    s_filename = filename;
+
+    // Get data path
+    char path[STORM_MAX_PATH] = {0};
+    SFile::GetBasePath(path, STORM_MAX_PATH);
+    SStrPrintf(path, STORM_MAX_PATH, "%s%s\\", path, "WTF");
+
+    s_CreatePathDirectories(path);
+
+    static ConsoleCommandList baseCommands[] = {
+        { "set",          SetCommandHandler,         "Set the value of a CVar"                             },
+        { "cvar_reset",   CvarResetCommandHandler,   "Set the value of a CVar to it's startup value"       },
+        { "cvar_default", CvarDefaultCommandHandler, "Set the value of a CVar to it's coded default value" },
+        { "cvarlist",     CvarListCommandHandler,    "List cvars"                                          }
+    };
+
+    CONSOLE_REGISTER_LIST(DEFAULT, baseCommands);
+
+    CVar::Load(s_filename);
+}
+
 int32_t CvarCommandHandler(const char* command, const char* arguments) {
     auto cvar = CVar::Lookup(command);
     STORM_ASSERT(cvar);

src/console/CVar.hpp

@@ -4,6 +4,7 @@
 #include <cstdint>
 #include <common/String.hpp>
 #include <storm/Hash.hpp>
+#include <bc/os/File.hpp>
 
 class CVar : public TSHashObject<CVar, HASHKEY_STRI> {
     public:
@@ -14,6 +15,7 @@ class CVar : public TSHashObject<CVar, HASHKEY_STRI> {
         // Static functions
         static CVar* Lookup(const char* name);
         static CVar* Register(const char*, const char*, uint32_t, const char*, bool (*)(CVar*, const char*, const char*, void*), uint32_t, bool, void*, bool);
+        static void  Initialize(const char* filename);
 
         // Member variables
         uint32_t m_category = 0;
@@ -33,6 +35,8 @@ class CVar : public TSHashObject<CVar, HASHKEY_STRI> {
         CVar();
         int32_t GetInt();
         const char* GetString(void);
+        int32_t Load(const char* filename);
+        int32_t Load(HOSFILE fileHandle);
         void InternalSet(const char*, bool, bool, bool, bool);
         bool Set(const char*, bool, bool, bool, bool);
         int32_t Update();

src/util/SFile.cpp

@@ -4,6 +4,9 @@
 #include <storm/Memory.hpp>
 #include <storm/String.hpp>
 
+static char s_basepath[STORM_MAX_PATH] = {0};
+static char s_datapath[STORM_MAX_PATH] = {0};
+
 // TODO Proper implementation
 int32_t SFile::Close(SFile* file) {
     delete file->m_filename;
@@ -125,3 +128,42 @@ int32_t SFile::Unload(void* ptr) {
     SMemFree(ptr, __FILE__, __LINE__, 0);
     return 1;
 }
+
+int32_t SFile::SetBasePath(const char* path) {
+    SStrCopy(s_basepath, path, STORM_MAX_PATH);
+
+    if (s_basepath != '\0') {
+        auto len = SStrLen(s_basepath);
+        if (s_basepath[len-1] != '\\') {
+            SStrPack(s_basepath, "\\", STORM_MAX_PATH);
+        }
+    }
+
+    // TODO
+
+    // SFileSetBasePath(path);
+
+    return 1;
+}
+
+int32_t SFile::SetDataPath(const char* path) {
+    SStrCopy(s_datapath, path, STORM_MAX_PATH);
+
+    if (s_datapath != '\0') {
+        auto len = SStrLen(s_datapath);
+        if (s_basepath[len-1] != '\\') {
+            SStrPack(s_datapath, "\\", STORM_MAX_PATH);
+        }
+    }
+
+    return 1;
+}
+
+int32_t SFile::GetBasePath(char* buffer, size_t bufferchars) {
+    SStrCopy(buffer, s_basepath, bufferchars);
+    return 1;
+}
+
+int32_t SFile::GetDataPath(char* buffer, size_t bufferchars) {
+    SStrCopy(buffer, s_datapath, bufferchars);
+}

src/util/SFile.hpp

@@ -21,6 +21,10 @@ class SFile {
         static int32_t OpenEx(SArchive*, const char*, uint32_t, SFile**);
         static int32_t Read(SFile*, void*, size_t, size_t*, SOVERLAPPED*, TASYNCPARAMBLOCK*);
         static int32_t Unload(void*);
+        static int32_t SetBasePath(const char* path);
+        static int32_t SetDataPath(const char* path);
+        static int32_t GetBasePath(char* path, size_t capacity);
+        static int32_t GetDataPath(char* path, size_t capacity);
 
         // Member variables
         const char* m_filename;