Initial commit

engines/director/lingo/xtras/keypoll.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/keypoll.h"
+
+/**************************************************
+ *
+ * USED IN:
+ * Safecracker
+ * Teazle
+ *
+ **************************************************/
+
+/*
+-- -- KeyPoll Xtra
+-- by Brian Gray
+-- (c) 1996 Macromedia, Inc.  All Rights Reserved.
+
+xtra KeyPoll
+new object me
+
+-- KeyPoll handlers --
+* bgOneKey integer keyCode -- returns TRUE if key (argument) is down, else FALSE
+* bgAllKeys -- returns a linear list of the keycodes of every key currently down
+
+ */
+
+namespace Director {
+
+const char *const KeypollXtra::xlibName = "Keypoll";
+const XlibFileDesc KeypollXtra::fileNames[] = {
+	{ "keypoll",   nullptr },
+	{ "KeyPollFat",   nullptr },
+	{ nullptr,        nullptr },
+};
+
+static const MethodProto xlibMethods[] = {
+	{ "xtra",				KeypollXtra::m_xtra,		 0, 0,	500 },
+	{ "new",				KeypollXtra::m_new,		 0, 0,	500 },
+	{ nullptr, nullptr, 0, 0, 0 }
+};
+
+static const BuiltinProto xlibBuiltins[] = {
+	{ "bgOneKey", KeypollXtra::m_bgOneKey, 1, 1, 500, HBLTIN },
+	{ "bgAllKeys", KeypollXtra::m_bgAllKeys, 0, 0, 500, HBLTIN },
+	{ nullptr, nullptr, 0, 0, 0, VOIDSYM }
+};
+
+KeypollXtraObject::KeypollXtraObject(ObjectType ObjectType) :Object<KeypollXtraObject>("Keypoll") {
+	_objType = ObjectType;
+}
+
+bool KeypollXtraObject::hasProp(const Common::String &propName) {
+	return (propName == "name");
+}
+
+Datum KeypollXtraObject::getProp(const Common::String &propName) {
+	if (propName == "name")
+		return Datum(KeypollXtra::xlibName);
+	warning("KeypollXtra::getProp: unknown property '%s'", propName.c_str());
+	return Datum();
+}
+
+void KeypollXtra::open(ObjectType type, const Common::Path &path) {
+    KeypollXtraObject::initMethods(xlibMethods);
+    KeypollXtraObject *xobj = new KeypollXtraObject(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 KeypollXtra::close(ObjectType type) {
+    KeypollXtraObject::cleanupMethods();
+    g_lingo->_globalvars[xlibName] = Datum();
+
+}
+
+void KeypollXtra::m_new(int nargs) {
+	g_lingo->printSTUBWithArglist("KeypollXtra::m_new", nargs);
+	g_lingo->dropStack(nargs);
+	g_lingo->push(g_lingo->_state->me);
+}
+
+XOBJSTUB(KeypollXtra::m_xtra, 0)
+
+void KeypollXtra::m_bgOneKey(int nargs) {
+	ARGNUMCHECK(1);
+
+	Common::Event event;
+
+	int requestedKey = g_lingo->pop().asInt();
+
+	while (g_system->getEventManager()->pollEvent(event)) {
+		switch (event.type) {
+		case Common::EVENT_KEYDOWN:
+			if (event.kbd.keycode == requestedKey) {
+				g_lingo->push(1);
+				return;
+			}
+		default:
+			break;
+		}
+	}
+
+	g_lingo->push(0);
+}
+
+XOBJSTUB(KeypollXtra::m_bgAllKeys, 0)
+
+}