scummvm/engines/avalanche/clock.cpp
2014-02-18 02:39:32 +01:00

117 lines
3.3 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 2
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
/*
* 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/clock.h"
#include "avalanche/avalanche.h"
namespace Avalanche {
Clock::Clock(AvalancheEngine *vm) {
_vm = vm;
// Magic value to determine if we just created the instance
_oldHour = _oldHourAngle = _oldMinute = 17717;
_hour = _minute = _second = 0;
_hourAngle = 0;
}
void Clock::update() {
TimeDate t;
_vm->_system->getTimeAndDate(t);
_hour = t.tm_hour;
_minute = t.tm_min;
_second = t.tm_sec;
_hourAngle = (_hour % 12) * 30 + _minute / 2;
if (_oldHour != _hour) {
plotHands();
chime();
}
if (_oldMinute != _minute)
plotHands();
if ((_hour == 0) && (_oldHour != 0) && (_oldHour != 17717)) {
Common::String tmpStr = Common::String::format("Good morning!%c%cYes, it's just past " \
"midnight. Are you having an all-night Avvy session? Glad you like the game that much!",
kControlNewLine, kControlNewLine);
_vm->_dialogs->displayText(tmpStr);
}
_oldHour = _hour;
_oldHourAngle = _hourAngle;
_oldMinute = _minute;
}
Common::Point Clock::calcHand(uint16 angle, uint16 length, Color color) {
if (angle > 900) {
return(Common::Point(177, 177));
}
return(_vm->_graphics->drawScreenArc(kCenterX, kCenterY, 449 - angle, 450 - angle, length, color));
}
void Clock::drawHand(const Common::Point &endPoint, Color color) {
if (endPoint.x == 177)
return;
_vm->_graphics->drawScreenLine(kCenterX, kCenterY, endPoint.x, endPoint.y, color);
}
void Clock::plotHands() {
_clockHandHour = calcHand(_oldHourAngle, 14, kColorYellow);
_clockHandMinute = calcHand(_oldMinute * 6, 17, kColorYellow);
drawHand(_clockHandHour, kColorBrown);
drawHand(_clockHandMinute, kColorBrown);
_clockHandHour = calcHand(_hourAngle, 14, kColorBrown);
_clockHandMinute = calcHand(_minute * 6, 17, kColorBrown);
drawHand(_clockHandHour, kColorYellow);
drawHand(_clockHandMinute, kColorYellow);
}
void Clock::chime() {
// Too high - must be first time around
// Mute - skip the sound generation
if ((_oldHour == 17717) || (!_vm->_soundFx))
return;
byte hour = _hour % 12;
if (hour == 0)
hour = 12;
_vm->_graphics->loadMouse(kCurWait);
for (int i = 1; i <= hour; i++) {
for (int j = 1; j <= 3; j++)
_vm->_sound->playNote((i % 3) * 64 + 140 - j * 30, 50 - j * 12);
if (i != hour)
_vm->_system->delayMillis(100);
}
}
} // End of namespace Avalanche