Initial commit

engines/director/lingo/xtras/timextra.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/>.
+ *
+ */
+
+#include "common/system.h"
+
+#include "director/director.h"
+#include "director/lingo/lingo.h"
+#include "director/lingo/lingo-object.h"
+#include "director/lingo/lingo-utils.h"
+#include "director/lingo/xtras/timextra.h"
+
+/**************************************************
+ *
+ * USED IN:
+ * Safecracker
+ *
+ **************************************************/
+
+/*
+-- xtra TimeXtra
+new object me, any
+* getTime -- add two numbers
+
+ */
+
+
+/**************************************************
+ Return value is hours * 3600 + minutes * 60 + seconds in UTC.
+ The underlying function in the XTRA is GetSystemTime:
+	https://learn.microsoft.com/en-us/windows/win32/api/sysinfoapi/nf-sysinfoapi-getsystemtime
+
+ Safecrackers only needs the number of seconds since the start of the game.
+ Since not all platforms that run ScummVM have a clock, it's implemented as
+ the number of seconds since the start of ScummVM.
+ **************************************************/
+
+
+namespace Director {
+
+const char *const TimextraXtra::xlibName = "Timextra";
+const XlibFileDesc TimextraXtra::fileNames[] = {
+	{ "timextra",   nullptr },
+	{ nullptr,        nullptr },
+};
+
+static const MethodProto xlibMethods[] = {
+	{ "new",				TimextraXtra::m_new,		 1, 0,	500 },
+	{ nullptr, nullptr, 0, 0, 0 }
+};
+
+static const BuiltinProto xlibBuiltins[] = {
+	{ "getTime", TimextraXtra::m_getTime, 0, 0, 500, HBLTIN },
+	{ nullptr, nullptr, 0, 0, 0, VOIDSYM }
+};
+
+TimextraXtraObject::TimextraXtraObject(ObjectType ObjectType) :Object<TimextraXtraObject>("Timextra") {
+	_objType = ObjectType;
+}
+
+bool TimextraXtraObject::hasProp(const Common::String &propName) {
+	return (propName == "name");
+}
+
+Datum TimextraXtraObject::getProp(const Common::String &propName) {
+	if (propName == "name")
+		return Datum(TimextraXtra::xlibName);
+	warning("TimextraXtra::getProp: unknown property '%s'", propName.c_str());
+	return Datum();
+}
+
+void TimextraXtra::open(ObjectType type, const Common::Path &path) {
+    TimextraXtraObject::initMethods(xlibMethods);
+    TimextraXtraObject *xobj = new TimextraXtraObject(type);
+	if (type == kXtraObj) {
+		g_lingo->_openXtras.push_back(xlibName);
+		g_lingo->_openXtraObjects.push_back(xobj);
+	}
+    g_lingo->exposeXObject(xlibName, xobj);
+    g_lingo->initBuiltIns(xlibBuiltins);
+}
+
+void TimextraXtra::close(ObjectType type) {
+    TimextraXtraObject::cleanupMethods();
+    g_lingo->_globalvars[xlibName] = Datum();
+}
+
+void TimextraXtra::m_new(int nargs) {
+	g_lingo->printSTUBWithArglist("TimextraXtra::m_new", nargs);
+	g_lingo->dropStack(nargs);
+	g_lingo->push(g_lingo->_state->me);
+}
+
+void TimextraXtra::m_getTime(int nargs) {
+	ARGNUMCHECK(0);
+	int seconds = g_system->getMillis() / 1000;
+	Datum const res(seconds);
+	g_lingo->push(res);
+}
+
+}