Initial commit

engines/avalanche/mainmenu.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 the original source code of Lord Avalot d'Argent version 1.3.
+ * Copyright (c) 1994-1995 Mike, Mark and Thomas Thurman.
+ */
+
+#include "avalanche/avalanche.h"
+#include "avalanche/mainmenu.h"
+
+#include "common/system.h"
+
+namespace Avalanche {
+
+MainMenu::MainMenu(AvalancheEngine *vm) {
+	_vm = vm;
+
+	_registrant = Common::String("");
+}
+
+void MainMenu::run() {
+	CursorMan.showMouse(false);
+	_vm->_graphics->menuInitialize();
+	_vm->_graphics->menuLoadPictures();
+	loadRegiInfo();
+	loadFont();
+
+	option(1, "Play the game.");
+	option(2, "Read the background.");
+	option(3, "Preview... perhaps...");
+	option(4, "View the documentation.");
+	option(5, "Registration info.");
+	option(6, "Exit back to DOS.");
+	centre(274, _registrant);
+	centre(301, "Make your choice, or wait for the demo.");
+
+	_vm->_graphics->menuRefreshScreen();
+
+	wait();
+}
+
+void MainMenu::loadFont() {
+	Common::File file;
+	if (!file.open("avalot.fnt"))
+		error("AVALANCHE: Scrolls: File not found: avalot.fnt");
+	for (int16 i = 0; i < 256; i++)
+		file.read(_font[i], 16);
+	file.close();
+}
+
+void MainMenu::loadRegiInfo() {
+	_registrant = "(Unregistered evaluation copy.)";
+	warning("STUB: MainMenu::loadRegiInfo()");
+}
+
+void MainMenu::option(byte which, Common::String what) {
+	_vm->_graphics->menuDrawBigText(_font, 127, 39 + which * 33, Common::String(which + 48) + ')', kColorBlack);
+	_vm->_graphics->menuDrawBigText(_font, 191, 39 + which * 33, what, kColorBlack);
+}
+
+void MainMenu::centre(int16 y, Common::String text) {
+	_vm->_graphics->menuDrawBigText(_font, 320 - text.size() * 8, y, text, kColorLightgray);
+}
+
+void MainMenu::wait() {
+	int x = 0;
+	while (!_vm->shouldQuit()) {
+		_vm->_graphics->menuDrawIndicator(x);
+		_vm->_system->delayMillis(40);
+		x++;
+		if (x == 641)
+			x = 0;
+		Common::Event event;
+		_vm->getEvent(event);
+		if (event.type == Common::EVENT_KEYDOWN) {
+			switch (event.kbd.keycode) {
+			case Common::KEYCODE_SPACE:
+			case Common::KEYCODE_RETURN:
+			case Common::KEYCODE_1: // Falltroughs are inteded.
+				// Play the game
+				_vm->_graphics->menuFree();
+				_vm->_graphics->menuRestoreScreen();
+				CursorMan.showMouse(true);
+				return;
+			case Common::KEYCODE_ESCAPE:
+			case Common::KEYCODE_6: // Falltroughs are inteded.
+				// Exit back to DOS
+				_vm->_letMeOut = true;
+				_vm->_graphics->menuFree();
+				return;
+			default:
+				break;
+			}
+		}
+	}
+}
+
+} // End of namespace Avalanche