Initial commit

engines/sword25/script/lua_extensions.cpp

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+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * 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 <http://www.gnu.org/licenses/>.
+ *
+ */
+
+/*
+ * This code is based on Broken Sword 2.5 engine
+ *
+ * Copyright (c) Malte Thiesen, Daniel Queteschiner and Michael Elsdoerfer
+ *
+ * Licensed under GNU GPL v2
+ *
+ */
+
+#include "sword25/script/luascript.h"
+#include "sword25/script/luabindhelper.h"
+
+namespace Sword25 {
+
+static int warning(lua_State *L) {
+#ifdef DEBUG
+	int __startStackDepth = lua_gettop(L);
+#endif
+
+	luaL_checkstring(L, 1);
+	luaL_where(L, 1);
+	lua_pushstring(L, "WARNING - ");
+	lua_pushvalue(L, 1);
+	lua_concat(L, 3);
+	lua_pop(L, 1);
+
+#ifdef DEBUG
+	assert(__startStackDepth == lua_gettop(L));
+#endif
+
+	return 0;
+}
+
+static const luaL_reg GLOBAL_FUNCTIONS[] = {
+	{"warning", warning},
+	{0, 0}
+};
+
+bool LuaScriptEngine::registerStandardLibExtensions() {
+	lua_State *L = _state;
+	assert(_state);
+
+	if (!LuaBindhelper::addFunctionsToLib(L, "", GLOBAL_FUNCTIONS))
+		return false;
+
+	return true;
+}
+
+} // End of namespace Sword25