407 lines
11 KiB
C++
407 lines
11 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#include "tetraedge/tetraedge.h"
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#include "tetraedge/te/te_lua_thread.h"
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#include "tetraedge/te/te_lua_context.h"
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#include "tetraedge/te/te_variant.h"
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#include "common/config-manager.h"
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#include "common/str.h"
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#include "common/debug.h"
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#include "common/file.h"
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#include "common/lua/lua.h"
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#include "common/lua/lauxlib.h"
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#include "common/lua/lualib.h"
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//#define TETRAEDGE_LUA_DEBUG 1
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//#define TETRAEDGE_RESTORE_EXPERIMENTAL 1
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namespace Tetraedge {
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/*static*/
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Common::Array<TeLuaThread *> *TeLuaThread::_threadList = nullptr;
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TeLuaThread::TeLuaThread(TeLuaContext *context) : _resumeCount(0), _lastResumeResult(0), _released(false) {
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_luaThread = lua_newthread(context->luaState());
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_bottomRef = luaL_ref(context->luaState(), LUA_REGISTRYINDEX);
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threadList()->push_back(this);
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}
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TeLuaThread::~TeLuaThread() {
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luaL_unref(_luaThread, LUA_REGISTRYINDEX, _bottomRef);
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uint i;
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Common::Array<TeLuaThread *> *threads = threadList();
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for (i = 0; i < threads->size(); i++)
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if ((*threads)[i] == this)
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break;
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if (i < threads->size())
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threads->remove_at(i);
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}
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/*static*/ TeLuaThread *TeLuaThread::create(TeLuaContext *context) {
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return new TeLuaThread(context);
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}
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void TeLuaThread::_resume(int nargs) {
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_resumeCount++;
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_lastResumeResult = lua_resume(_luaThread, nargs);
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if (_lastResumeResult > 1) {
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const char *msg = lua_tolstring(_luaThread, -1, nullptr);
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warning("TeLuaThread::_resume: %s", msg);
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}
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if (_lastResumeResult != 1 && _released) {
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//debug("TeLuaThread:: deleting this?");
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delete this;
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}
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}
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void TeLuaThread::execute(const Common::String &fname) {
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if (!_luaThread)
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return;
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#ifdef TETRAEDGE_LUA_DEBUG
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if (fname != "Update" && fname != "UpdateHelp")
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debug("TeLuaThread::execute: %s()", fname.c_str());
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#endif
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lua_getglobal(_luaThread, fname.c_str());
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if (lua_type(_luaThread, -1) == LUA_TFUNCTION) {
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_resume(0);
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} else {
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if (!fname.contains("Update"))
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debug("[TeLuaThread::Execute0] Function: \"%s\" does not exist", fname.c_str());
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lua_settop(_luaThread, -2);
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}
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}
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void TeLuaThread::execute(const Common::String &fname, const TeVariant &p1) {
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if (!_luaThread)
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return;
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#ifdef TETRAEDGE_LUA_DEBUG
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debug("TeLuaThread::execute: %s(%s)", fname.c_str(), p1.dumpStr().c_str());
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#endif
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lua_getglobal(_luaThread, fname.c_str());
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if (lua_type(_luaThread, -1) == LUA_TFUNCTION) {
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pushValue(p1);
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_resume(1);
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} else {
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// Don't report Update (as original) or some other functions which are not
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// implemented in both games
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if (!fname.contains("Update") && !fname.equals("OnCellCharacterAnimationPlayerFinished")
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&& !fname.equals("OnCharacterAnimationFinished") && !fname.equals("OnCellDialogFinished")
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&& !fname.equals("OnCellFreeSoundFinished"))
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debug("[TeLuaThread::Execute1] Function: \"%s\" does not exist", fname.c_str());
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lua_settop(_luaThread, -2);
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}
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}
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void TeLuaThread::execute(const Common::String &fname, const TeVariant &p1, const TeVariant &p2) {
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if (!_luaThread)
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return;
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#ifdef TETRAEDGE_LUA_DEBUG
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debug("TeLuaThread::execute: %s(%s, %s)", fname.c_str(), p1.dumpStr().c_str(),
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p2.dumpStr().c_str());
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#endif
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lua_getglobal(_luaThread, fname.c_str());
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if (lua_type(_luaThread, -1) == LUA_TFUNCTION) {
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pushValue(p1);
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pushValue(p2);
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_resume(2);
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} else {
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if (!fname.contains("Update"))
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debug("[TeLuaThread::Execute2] Function: \"%s\" does not exist.", fname.c_str());
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lua_settop(_luaThread, -2);
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}
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}
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void TeLuaThread::execute(const Common::String &fname, const TeVariant &p1, const TeVariant &p2, const TeVariant &p3) {
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if (!_luaThread)
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return;
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#ifdef TETRAEDGE_LUA_DEBUG
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debug("TeLuaThread::execute: %s(%s, %s, %s)", fname.c_str(), p1.dumpStr().c_str(),
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p2.dumpStr().c_str(), p3.dumpStr().c_str());
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#endif
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lua_getglobal(_luaThread, fname.c_str());
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if (lua_type(_luaThread, -1) == LUA_TFUNCTION) {
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pushValue(p1);
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pushValue(p2);
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pushValue(p3);
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_resume(3);
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} else {
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if (!fname.contains("Update"))
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debug("[TeLuaThread::Execute3] Function: \"%s\" does not exist.", fname.c_str());
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lua_settop(_luaThread, -4);
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}
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}
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void TeLuaThread::applyScriptWorkarounds(char *buf, const Common::String &fileNameIn) {
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char *fixline;
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Common::String fileName(fileNameIn);
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if (fileName.hasSuffix(".data")) {
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fileName = fileName.substr(0, fileName.size() - 5) + ".lua";
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}
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//
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// WORKAROUND: Some script files have rogue ";" lines in them with nothing
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// else, and ScummVM common lua version doesn't like them. Clean those up.
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//
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fixline = strstr(buf, "\n\t;");
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if (fixline)
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fixline[2] = '\t';
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//
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// Restore Syberia 1 scenes by patching up the scripts
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//
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if (g_engine->gameType() == TetraedgeEngine::kSyberia && ConfMan.getBool("restore_scenes")) {
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if (fileName.contains("Logic11070.lua")) {
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// Allow Kate to enter scene 11100
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fixline = strstr(buf, "\"11110\"");
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if (fixline) // 11110 -> 11100
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fixline[4] = '0';
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fixline = strstr(buf, "\"11110\"");
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if (fixline)
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fixline[4] = '0';
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} else if (fileName.contains("Logic11110.lua")) {
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// Allow Kate to enter scene 11100
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fixline = strstr(buf, "\"11070\"");
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if (fixline) // 11070 -> 11100
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memcpy(fixline + 3, "10 ", 2);
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fixline = strstr(buf, "\"11070\"");
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if (fixline)
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memcpy(fixline + 3, "10 ", 2);
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#ifdef TETRAEDGE_RESTORE_EXPERIMENTAL
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// The 11170 scene is not usable yet - it seems
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// to not have any free move zone data?
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} else if (fileName.contains("Logic11160.lua")) {
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fixline = strstr(buf, "\"11180\"");
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if (fixline) // 11180 -> 11170
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fixline[4] = '7';
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fixline = strstr(buf, "\"11180\"");
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if (fixline)
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fixline[4] = '7';
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} else if (fileName.contains("Logic11180.lua")) {
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fixline = strstr(buf, "\"11160\"");
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if (fixline) // 11160 -> 11170
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fixline[4] = '7';
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fixline = strstr(buf, "\"11160\"");
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if (fixline)
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fixline[4] = '7';
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#endif
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} else if (fileName.contains("Logic11100.lua")) {
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fixline = strstr(buf, " , 55 ,70, ");
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if (fixline) // 70 -> 65 to fix speech marker location
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memcpy(fixline + 7, "65 ", 2);
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} else if (fileName.contains("Int11100.lua") || fileName.contains("Int11170.lua")) {
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fixline = strstr(buf, "ratio = 16/9,");
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if (fixline) // 16/9 -> 4/3
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memcpy(fixline + 8, "4/3 ", 4);
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fixline = strstr(buf, "ratioMode = PanScan,");
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if (fixline)
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memcpy(fixline + 9, "=LetterBox", 10);
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} else if (fileName.contains("For11100.lua") || fileName.contains("For11170.lua")) {
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fixline = strstr(buf, "size = {1.0");
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if (fixline) // 1.0 -> 1.5
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fixline[10] = '5';
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}
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}
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//
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// WORKAROUND: Syberia 2 constantly re-seeds the random number generator.
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// This fails on ScummVM Lua because os.time() returns a large Number and
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// math.randomseed() clamps the number to an int, so it always seeds on the
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// same value. It's also kind of pointless, so just patch it out.
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//
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static const char RESEED_PATTERN[] = "math.randomseed( os.time() )";
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fixline = strstr(buf, RESEED_PATTERN);
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while (fixline != nullptr) {
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for (int i = 0; i < ARRAYSIZE(RESEED_PATTERN); i++) {
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fixline[i] = ' ';
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}
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fixline = strstr(fixline, RESEED_PATTERN);
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}
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//
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// WORKAROUND: Syberia 2 A1_Cabaret/11420/Logic11420.lua has a typo on a
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// variable name that causes the game to lock up
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//
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fixline = strstr(buf, "OBJECT_10050_Inventory_obj_coeurmec_Taketoun ");
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if (fixline) {
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// Taketoun -> Taken
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memcpy(fixline + 40, "n ", 4);
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}
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}
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void TeLuaThread::executeFile(const TetraedgeFSNode &node) {
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Common::ScopedPtr<Common::SeekableReadStream> scriptFile(node.createReadStream());
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if (!scriptFile) {
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warning("TeLuaThread::executeFile: File %s can't be opened", node.getName().c_str());
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return;
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}
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#ifdef TETRAEDGE_LUA_DEBUG
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debug("TeLuaThread::executeFile: %s", node.getName().c_str());
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#endif
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int64 fileLen = scriptFile->size();
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char *buf = new char[fileLen + 1];
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scriptFile->read(buf, fileLen);
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buf[fileLen] = 0;
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scriptFile.reset();
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applyScriptWorkarounds(buf, node.getPath().baseName());
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_lastResumeResult = luaL_loadbuffer(_luaThread, buf, fileLen, node.toString().c_str());
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if (_lastResumeResult) {
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const char *msg = lua_tostring(_luaThread, -1);
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warning("TeLuaThread::executeFile: %s", msg);
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}
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delete [] buf;
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_resume(0);
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}
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void TeLuaThread::pushValue(const TeVariant &val) {
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TeVariant::VariantType valType = val.type();
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switch(valType) {
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case TeVariant::TypeBoolean:
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lua_pushboolean(_luaThread, val.toBoolean());
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break;
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case TeVariant::TypeInt32:
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lua_pushinteger(_luaThread, val.toSigned32());
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break;
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case TeVariant::TypeUInt32:
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lua_pushinteger(_luaThread, val.toUnsigned32());
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break;
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case TeVariant::TypeInt64:
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lua_pushinteger(_luaThread, val.toSigned64());
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break;
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case TeVariant::TypeUInt64:
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lua_pushinteger(_luaThread, val.toUnsigned64());
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break;
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case TeVariant::TypeFloat32:
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lua_pushnumber(_luaThread, val.toFloat32());
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break;
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case TeVariant::TypeFloat64:
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lua_pushnumber(_luaThread, val.toFloat64());
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break;
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case TeVariant::TypeString:
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lua_pushstring(_luaThread, val.toString().c_str());
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break;
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default:
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warning("TeLuaThread::pushValue: Unknown type");
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return;
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}
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}
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void TeLuaThread::release() {
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_released = true;
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if (_lastResumeResult != 1) {
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//debug("TeLuaThread:: deleting this?");
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delete this;
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}
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}
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void TeLuaThread::resume() {
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#ifdef TETRAEDGE_LUA_DEBUG
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debug("TeLuaThread::resume");
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#endif
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if (_luaThread)
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_resume(0);
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}
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void TeLuaThread::resume(const TeVariant &p1) {
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#ifdef TETRAEDGE_LUA_DEBUG
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debug("TeLuaThread::resume(%s)", p1.dumpStr().c_str());
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#endif
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if (_luaThread) {
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pushValue(p1);
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_resume(1);
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}
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}
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void TeLuaThread::resume(const TeVariant &p1, const TeVariant &p2) {
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#ifdef TETRAEDGE_LUA_DEBUG
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debug("TeLuaThread::resume(%s, %s)", p1.dumpStr().c_str(), p2.dumpStr().c_str());
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#endif
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if (_luaThread) {
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pushValue(p1);
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pushValue(p2);
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_resume(2);
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}
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}
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void TeLuaThread::resume(const TeVariant &p1, const TeVariant &p2, const TeVariant &p3) {
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#ifdef TETRAEDGE_LUA_DEBUG
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debug("TeLuaThread::resume(%s, %s, %s)", p1.dumpStr().c_str(), p2.dumpStr().c_str(),
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p3.dumpStr().c_str());
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#endif
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if (_luaThread) {
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pushValue(p1);
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pushValue(p2);
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pushValue(p3);
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_resume(3);
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}
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}
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/*static*/
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TeLuaThread *TeLuaThread::threadFromState(lua_State *state) {
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Common::Array<TeLuaThread *> *threads = threadList();
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for (auto &thread : *threads) {
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if (thread->_luaThread == state)
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return thread;
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}
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return nullptr;
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}
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/*static*/
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Common::Array<TeLuaThread *> *TeLuaThread::threadList() {
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if (!_threadList)
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_threadList = new Common::Array<TeLuaThread *>();
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return _threadList;
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}
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/*static*/
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void TeLuaThread::cleanup() {
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delete _threadList;
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_threadList = nullptr;
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}
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int TeLuaThread::yield() {
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return lua_yield(_luaThread, 0);
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}
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} // end namespace Tetraedge
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