scummvm/engines/avalanche/mainmenu.cpp
2021-12-26 18:48:43 +01:00

118 lines
3.2 KiB
C++

/* 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