355 lines
8.2 KiB
C++
355 lines
8.2 KiB
C++
#include "STDInclude.hpp"
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namespace Components
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{
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std::string Script::ScriptName;
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std::vector<int> Script::ScriptHandles;
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std::vector<Script::Function> Script::ScriptFunctions;
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std::vector<std::string> Script::ScriptNameStack;
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unsigned short Script::FunctionName;
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Utils::Signal<Script::Callback> Script::VMShutdownSignal;
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void Script::FunctionError()
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{
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std::string funcName = Game::SL_ConvertToString(Script::FunctionName);
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Game::Scr_ShutdownAllocNode();
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Logger::Print(23, "\n");
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Logger::Print(23, "******* script compile error *******\n");
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Logger::Print(23, "Error: unknown function %s in %s\n", funcName.data(), Script::ScriptName.data());
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Logger::Print(23, "************************************\n");
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Logger::Error(5, "script compile error\nunknown function %s\n%s\n\n", funcName.data(), Script::ScriptName.data());
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}
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__declspec(naked) void Script::StoreFunctionNameStub()
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{
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__asm
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{
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mov eax, [esp - 8h]
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mov Script::FunctionName, ax
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sub esp, 0Ch
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push 0
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push edi
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mov eax, 612DB6h
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jmp eax
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}
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}
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void Script::StoreScriptName(const char* name)
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{
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Script::ScriptNameStack.push_back(Script::ScriptName);
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Script::ScriptName = name;
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if (!Utils::String::EndsWith(Script::ScriptName, ".gsc"))
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{
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Script::ScriptName.append(".gsc");
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}
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}
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__declspec(naked) void Script::StoreScriptNameStub()
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{
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__asm
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{
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pushad
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lea ecx, [esp + 30h]
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push ecx
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call Script::StoreScriptName
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add esp, 4h
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popad
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push ebp
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mov ebp, ds:1CDEAA8h
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push 427DC3h
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retn
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}
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}
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void Script::RestoreScriptName()
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{
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Script::ScriptName = Script::ScriptNameStack.back();
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Script::ScriptNameStack.pop_back();
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}
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__declspec(naked) void Script::RestoreScriptNameStub()
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{
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__asm
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{
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pushad
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call Script::RestoreScriptName
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popad
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mov ds:1CDEAA8h, ebp
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push 427E77h
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retn
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}
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}
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void Script::PrintSourcePos(const char* filename, unsigned int offset)
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{
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FileSystem::File script(filename);
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if (script.exists())
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{
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std::string buffer = script.getBuffer();
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Utils::String::Replace(buffer, "\t", " ");
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int line = 1;
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int lineOffset = 0;
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int inlineOffset = 0;
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for (unsigned int i = 0; i < buffer.size(); ++i)
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{
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// Terminate line
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if (i == offset)
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{
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while (buffer[i] != '\r' && buffer[i] != '\n' && buffer[i] != '\0')
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{
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++i;
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}
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buffer[i] = '\0';
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break;
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}
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if (buffer[i] == '\n')
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{
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++line;
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lineOffset = i; // Includes the line break!
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inlineOffset = 0;
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}
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else
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{
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++inlineOffset;
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}
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}
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Logger::Print(23, "in file %s, line %d:", filename, line);
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Logger::Print(23, "%s\n", buffer.data() + lineOffset);
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for (int i = 0; i < (inlineOffset - 1); ++i)
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{
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Logger::Print(23, " ");
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}
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Logger::Print(23, "*\n");
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}
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else
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{
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Logger::Print(23, "in file %s, offset %d\n", filename, offset);
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}
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}
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void Script::CompileError(unsigned int offset, const char* message, ...)
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{
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char msgbuf[1024] = { 0 };
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va_list v;
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va_start(v, message);
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_vsnprintf_s(msgbuf, sizeof(msgbuf), message, v);
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va_end(v);
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Game::Scr_ShutdownAllocNode();
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Logger::Print(23, "\n");
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Logger::Print(23, "******* script compile error *******\n");
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Logger::Print(23, "Error: %s ", msgbuf);
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Script::PrintSourcePos(Script::ScriptName.data(), offset);
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Logger::Print(23, "************************************\n\n");
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Logger::Error(5, "script compile error\n%s\n%s\n(see console for actual details)\n", msgbuf, Script::ScriptName.data());
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}
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int Script::LoadScriptAndLabel(std::string script, std::string label)
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{
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Logger::Print("Loading script %s.gsc...\n", script.data());
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if (!Game::Scr_LoadScript(script.data()))
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{
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Logger::Print("Script %s encountered an error while loading. (doesn't exist?)", script.data());
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Logger::Error(1, reinterpret_cast<char*>(0x70B810), script.data());
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}
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else
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{
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Logger::Print("Script %s.gsc loaded successfully.\n", script.data());
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}
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Logger::Print("Finding script handle %s::%s...\n", script.data(), label.data());
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int handle = Game::Scr_GetFunctionHandle(script.data(), label.data());
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if (handle)
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{
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Logger::Print("Script handle %s::%s loaded successfully.\n", script.data(), label.data());
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return handle;
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}
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Logger::Print("Script handle %s::%s couldn't be loaded. (file with no entry point?)\n", script.data(), label.data());
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return handle;
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}
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void Script::LoadGameType()
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{
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for (auto handle : Script::ScriptHandles)
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{
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Game::Scr_FreeThread(Game::Scr_ExecThread(handle, 0));
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}
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Game::Scr_LoadGameType();
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}
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void Script::LoadGameTypeScript()
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{
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Script::ScriptHandles.clear();
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auto list = FileSystem::GetFileList("scripts/", "gsc");
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for (auto file : list)
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{
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file = "scripts/" + file;
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if (Utils::String::EndsWith(file, ".gsc"))
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{
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file = file.substr(0, file.size() - 4);
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}
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int handle = Script::LoadScriptAndLabel(file, "init");
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if (handle) Script::ScriptHandles.push_back(handle);
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else
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{
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handle = Script::LoadScriptAndLabel(file, "main");
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if (handle) Script::ScriptHandles.push_back(handle);
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}
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}
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Game::GScr_LoadGameTypeScript();
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}
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void Script::AddFunction(std::string name, Game::scr_function_t function, bool isDev)
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{
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for(auto i = Script::ScriptFunctions.begin(); i != Script::ScriptFunctions.end();)
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{
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if(i->getName() == name)
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{
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i = Script::ScriptFunctions.erase(i);
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continue;
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}
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++i;
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}
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Script::ScriptFunctions.push_back({ name, function, isDev });
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}
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void Script::OnVMShutdown(Utils::Slot<Script::Callback> callback)
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{
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Script::VMShutdownSignal.connect(callback);
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}
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Game::scr_function_t Script::GetFunction(void* caller, const char** name, int* isDev)
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{
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for (auto& function : Script::ScriptFunctions)
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{
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if (name && *name)
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{
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if(Utils::String::ToLower(*name) == Utils::String::ToLower(function.getName()))
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{
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*name = function.getName();
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*isDev = function.isDev();
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return function.getFunction();
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}
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}
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else if(caller == reinterpret_cast<void*>(0x465781))
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{
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Game::Scr_RegisterFunction(function.getFunction());
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}
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}
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return nullptr;
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}
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__declspec(naked) void Script::GetFunctionStub()
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{
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__asm
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{
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test eax, eax
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jnz returnSafe
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sub esp, 8h
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push [esp + 10h]
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call Script::GetFunction
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add esp, 0Ch
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returnSafe:
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pop edi
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pop esi
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retn
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}
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}
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void Script::ScrShutdownSystemStub(int num)
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{
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Script::VMShutdownSignal();
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// Scr_ShutdownSystem
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Utils::Hook::Call<void(int)>(0x421EE0)(num);
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}
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int Script::SetExpFogStub()
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{
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if (Game::Scr_GetNumParam() == 6)
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{
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std::memmove(&Game::scriptContainer->stack[-4], &Game::scriptContainer->stack[-5], sizeof(Game::VariableValue) * 6);
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Game::scriptContainer->stack += 1;
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Game::scriptContainer->stack[-6].type = Game::VAR_FLOAT;
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Game::scriptContainer->stack[-6].u.floatValue = 0;
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++Game::scriptContainer->numParam;
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}
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return Game::Scr_GetNumParam();
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}
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Script::Script()
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{
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Utils::Hook(0x612DB0, Script::StoreFunctionNameStub, HOOK_JUMP).install()->quick();
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Utils::Hook(0x427E71, Script::RestoreScriptNameStub, HOOK_JUMP).install()->quick();
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Utils::Hook(0x427DBC, Script::StoreScriptNameStub, HOOK_JUMP).install()->quick();
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Utils::Hook(0x612E8D, Script::FunctionError, HOOK_CALL).install()->quick();
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Utils::Hook(0x612EA2, Script::FunctionError, HOOK_CALL).install()->quick();
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Utils::Hook(0x434260, Script::CompileError, HOOK_JUMP).install()->quick();
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Utils::Hook(0x48EFFE, Script::LoadGameType, HOOK_CALL).install()->quick();
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Utils::Hook(0x45D44A, Script::LoadGameTypeScript, HOOK_CALL).install()->quick();
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Utils::Hook(0x44E736, Script::GetFunctionStub, HOOK_JUMP).install()->quick(); // Scr_GetFunction
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//Utils::Hook(0x4EC8E5, Script::GetFunctionStub, HOOK_JUMP).install()->quick(); // Scr_GetMethod
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Utils::Hook(0x5F41A3, Script::SetExpFogStub, HOOK_CALL).install()->quick();
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Utils::Hook(0x47548B, Script::ScrShutdownSystemStub, HOOK_CALL).install()->quick();
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Utils::Hook(0x4D06BA, Script::ScrShutdownSystemStub, HOOK_CALL).install()->quick();
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Script::AddFunction("debugBox", [](Game::scr_entref_t)
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{
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MessageBoxA(nullptr, Game::Scr_GetString(0), "DEBUG", 0);
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}, true);
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}
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Script::~Script()
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{
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Script::ScriptName.clear();
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Script::ScriptHandles.clear();
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Script::ScriptNameStack.clear();
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Script::ScriptFunctions.clear();
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Script::VMShutdownSignal.clear();
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}
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}
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