/* 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/avalanche.h" #include "avalanche/shootemup.h" #include "common/random.h" namespace Avalanche { const byte ShootEmUp::kStocks = 27; const byte ShootEmUp::kAvvyShoots = 86; const byte ShootEmUp::kFacingRight = 87; const byte ShootEmUp::kFacingLeft = 93; const long int ShootEmUp::kFlag = -20047; const byte ShootEmUp::kFrameDelayMax = 2; const byte ShootEmUp::kAvvyY = 150; const byte ShootEmUp::kShooting[7] = { 87, 80, 81, 82, 81, 80, 87 }; const byte ShootEmUp::kTimesASecond = 18; const byte ShootEmUp::kFlashTime = 20; // If flash_time is <= this, the word "time" will flash. Should be about 20. ShootEmUp::ShootEmUp(AvalancheEngine *vm) { _vm = vm; _time = 0; for (int i = 0; i < 7; i++) _stockStatus[i] = 0; for (int i = 0; i < 99; i++) { _sprites[i]._ix = 0; _sprites[i]._iy = 0; _sprites[i]._x = 0; _sprites[i]._y = 0; _sprites[i]._p = 0; _sprites[i]._timeout = 0; _sprites[i]._cameo = false; _sprites[i]._cameoFrame = 0; _sprites[i]._missile = false; _sprites[i]._wipe = false; } _rectNum = 0; _avvyWas = 0; _avvyPos = 0; _avvyAnim = 0; _avvyFacing = 0; _altWasPressedBefore = false; _throwNext = 0; _firing = false; for (int i = 0; i < 4; i++) { _running[i]._x = 0; _running[i]._y = 0; _running[i]._frame = 0; _running[i]._tooHigh = 0; _running[i]._lowest = 0; _running[i]._ix = 0; _running[i]._iy = 0; _running[i]._frameDelay = 0; } for (int i = 0; i < 7; i++) _hasEscaped[i] = false; _count321 = 0; _howManyHaveEscaped = 0; _escapeCount = 0; _escaping = false; _timeThisSecond = 0; _cp = false; _wasFacing = 0; _score = 0; _escapeStock = 0; _gotOut = false; } void ShootEmUp::run() { CursorMan.showMouse(false); _vm->_graphics->saveScreen(); _vm->fadeOut(); _vm->_graphics->seuDrawTitle(); _vm->fadeIn(); _vm->_graphics->seuLoad(); // Should we show the instructions? while (!_vm->shouldQuit()) { Common::Event event; _vm->getEvent(event); if (event.type == Common::EVENT_KEYDOWN) { if ((event.kbd.keycode == Common::KEYCODE_i) || (event.kbd.keycode == Common::KEYCODE_F1)) instructions(); break; // We don't show the instructions and simply go on with the minigame if not I or F1 was pressed. } } setup(); do { uint32 beginLoop = _vm->_system->getMillis(); blankIt(); hitPeople(); plotThem(); moveThem(); moveAvvy(); bumpFolk(); peopleRunning(); animate(); escapeCheck(); collisionCheck(); updateTime(); check321(); readKbd(); _cp = !_cp; _vm->_graphics->refreshScreen(); uint32 delay = _vm->_system->getMillis() - beginLoop; if (delay <= 55) _vm->_system->delayMillis(55 - delay); // Replaces slowdown(); 55 comes from 18.2 Hz (B Flight). } while (_time != 0); _vm->fadeOut(); _vm->_graphics->restoreScreen(); _vm->_graphics->removeBackup(); _vm->fadeIn(); CursorMan.showMouse(true); } bool ShootEmUp::overlap(uint16 a1x, uint16 a1y, uint16 a2x, uint16 a2y, uint16 b1x, uint16 b1y, uint16 b2x, uint16 b2y) { // By De Morgan's law: return (a2x >= b1x) && (b2x >= a1x) && (a2y >= b1y) && (b2y >= a1y); } byte ShootEmUp::getStockNumber(byte index) { while (_hasEscaped[index]) { index++; if (index == 7) index = 0; } return index; } void ShootEmUp::blankIt() { for (int i = 0; i < _rectNum; i++) _vm->_graphics->drawFilledRectangle(_rectangles[i], kColorBlack); _rectNum = 0; } void ShootEmUp::moveThem() { for (int i = 0; i < 99; i++) { if (_sprites[i]._x != kFlag) { _sprites[i]._x += _sprites[i]._ix; _sprites[i]._y += _sprites[i]._iy; } } } void ShootEmUp::blank(Common::Rect rect) { _rectangles[_rectNum++] = rect; } void ShootEmUp::plotThem() { for (int i = 0; i < 99; i++) { if (_sprites[i]._x != kFlag) { if (_sprites[i]._cameo) { _vm->_graphics->seuDrawCameo(_sprites[i]._x, _sprites[i]._y, _sprites[i]._p, _sprites[i]._cameoFrame); if (!_cp) { _sprites[i]._cameoFrame += 2; _sprites[i]._p += 2; } } else _vm->_graphics->seuDrawPicture(_sprites[i]._x, _sprites[i]._y, _sprites[i]._p); if (_sprites[i]._wipe) blank(Common::Rect(_sprites[i]._x, _sprites[i]._y, _sprites[i]._x + _vm->_graphics->seuGetPicWidth(_sprites[i]._p), _sprites[i]._y + _vm->_graphics->seuGetPicHeight(_sprites[i]._p))); if (_sprites[i]._timeout > 0) { _sprites[i]._timeout--; if (_sprites[i]._timeout == 0) _sprites[i]._x = kFlag; } } } } void ShootEmUp::define(int16 x, int16 y, int8 p, int8 ix, int8 iy, int16 time, bool isAMissile, bool doWeWipe) { for (int i = 0; i < 99; i++) { if (_sprites[i]._x == kFlag) { _sprites[i]._x = x; _sprites[i]._y = y; _sprites[i]._p = p - 1; _sprites[i]._ix = ix; _sprites[i]._iy = iy; _sprites[i]._timeout = time; _sprites[i]._cameo = false; _sprites[i]._missile = isAMissile; _sprites[i]._wipe = doWeWipe; return; } } } void ShootEmUp::defineCameo(int16 x, int16 y, int8 p, int16 time) { for (int i = 0; i < 99; i++) { if (_sprites[i]._x == kFlag) { _sprites[i]._x = x; _sprites[i]._y = y; _sprites[i]._p = p; _sprites[i]._ix = 0; _sprites[i]._iy = 0; _sprites[i]._timeout = time; _sprites[i]._cameo = true; _sprites[i]._cameoFrame = p + 1; _sprites[i]._missile = false; _sprites[i]._wipe = false; return; } } } void ShootEmUp::showStock(byte index) { if (_escaping && (index == _escapeStock)) { _vm->_graphics->seuDrawPicture(index * 90 + 20, 30, kStocks + 2); return; } if (_stockStatus[index] > 5) return; _vm->_graphics->seuDrawPicture(index * 90 + 20, 30, kStocks + _stockStatus[index]); _stockStatus[index] = 1 - _stockStatus[index]; } void ShootEmUp::drawNumber(int number, int size, int x) { for (int i = 0; i < size - 1; i++) { int divisor = 10; for (int j = 0; j < size - 2 - i; j++) divisor *= 10; char value = number / divisor; _vm->_graphics->seuDrawPicture(x + i * 10, 0, value); number -= value * divisor; } _vm->_graphics->seuDrawPicture(x + (size - 1) * 10, 0, number % 10); } void ShootEmUp::showScore() { drawNumber(_score, 5, 40); } void ShootEmUp::showTime() { drawNumber(_time, 3, 140); } void ShootEmUp::gain(int8 howMuch) { if ((_score + howMuch) < 0) // howMuch can be negative! _score = 0; else _score += howMuch; showScore(); } void ShootEmUp::newEscape() { _escapeCount = _vm->_rnd->getRandomNumber(17) * 20; _escaping = false; } void ShootEmUp::nextPage() { _vm->_graphics->drawNormalText("Press a key for next page >", _vm->_font, 8, 400, 190, kColorWhite); _vm->_graphics->refreshScreen(); while (!_vm->shouldQuit()) { Common::Event event; _vm->getEvent(event); if (event.type == Common::EVENT_KEYDOWN) { break; } } _vm->_graphics->drawFilledRectangle(Common::Rect(0, 0, 639, 199), kColorBlack); } void ShootEmUp::instructions() { _vm->_graphics->blackOutScreen(); _vm->_graphics->seuDrawPicture(25, 25, kFacingRight); _vm->_graphics->drawNormalText("< Avvy, our hero, needs your help - you must move him around.", _vm->_font, 8, 60, 35, kColorWhite); _vm->_graphics->drawNormalText("(He''s too terrified to move himself!)", _vm->_font, 8, 80, 45, kColorWhite); _vm->_graphics->drawNormalText("Your task is to prevent the people in the stocks from escaping", _vm->_font, 8, 0, 75, kColorWhite); _vm->_graphics->drawNormalText("by pelting them with rotten fruit, eggs and bread. The keys are:", _vm->_font, 8, 0, 85, kColorWhite); _vm->_graphics->drawNormalText("LEFT SHIFT", _vm->_font, 8, 80, 115, kColorWhite); _vm->_graphics->drawNormalText("Move left.", _vm->_font, 8, 200, 115, kColorWhite); _vm->_graphics->drawNormalText("RIGHT SHIFT", _vm->_font, 8, 72, 135, kColorWhite); _vm->_graphics->drawNormalText("Move right.", _vm->_font, 8, 200, 135, kColorWhite); _vm->_graphics->drawNormalText("ALT", _vm->_font, 8, 136, 155, kColorWhite); _vm->_graphics->drawNormalText("Throw something.", _vm->_font, 8, 200, 155, kColorWhite); nextPage(); _vm->_graphics->seuDrawPicture(25, 35, kStocks); _vm->_graphics->drawNormalText("This man is in the stocks. Your job is to stop him getting out.", _vm->_font, 8, 80, 35, kColorWhite); _vm->_graphics->drawNormalText("UNFORTUNATELY... the locks on the stocks are loose, and every", _vm->_font, 8, 88, 45, kColorWhite); _vm->_graphics->drawNormalText("so often, someone will discover this and try to get out.", _vm->_font, 8, 88, 55, kColorWhite); _vm->_graphics->seuDrawPicture(25, 85, kStocks + 2); _vm->_graphics->drawNormalText("< Someone who has found a way out!", _vm->_font, 8, 80, 85, kColorWhite); _vm->_graphics->drawNormalText("You MUST IMMEDIATELY hit people smiling like this, or they", _vm->_font, 8, 88, 95, kColorWhite); _vm->_graphics->drawNormalText("will disappear and lose you points.", _vm->_font, 8, 88, 105, kColorWhite); _vm->_graphics->seuDrawPicture(25, 125, kStocks + 5); _vm->_graphics->seuDrawPicture(25, 155, kStocks + 4); _vm->_graphics->drawNormalText("< Oh dear!", _vm->_font, 8, 80, 125, kColorWhite); nextPage(); _vm->_graphics->drawNormalText("Your task is made harder by:", _vm->_font, 8, 0, 35, kColorWhite); _vm->_graphics->seuDrawPicture(25, 55, 48); _vm->_graphics->drawNormalText("< Yokels. These people will run in front of you. If you hit", _vm->_font, 8, 60, 55, kColorWhite); _vm->_graphics->drawNormalText("them, you will lose MORE points than you get hitting people", _vm->_font, 8, 68, 65, kColorWhite); _vm->_graphics->drawNormalText("in the stocks. So BEWARE!", _vm->_font, 8, 68, 75, kColorWhite); _vm->_graphics->drawNormalText("Good luck with the game!", _vm->_font, 8, 80, 125, kColorWhite); nextPage(); } void ShootEmUp::setup() { _score = 0; _time = 120; _cp = true; _avvyWas = 320; _avvyPos = 320; _avvyAnim = 1; _avvyFacing = kFacingLeft; _altWasPressedBefore = false; _throwNext = 74; _firing = false; for (int i = 0; i < 4; i++) _running[i]._x = kFlag; for (int i = 0; i < 99; i++) _sprites[i]._x = kFlag; newEscape(); _count321 = 255; // Counting down. _vm->_graphics->blackOutScreen(); for (int i = 0; i < 7; i++) { _stockStatus[i] = _vm->_rnd->getRandomNumber(1); showStock(i); } // Set up status line: _vm->_graphics->seuDrawPicture(0, 0, 16); // Score: showScore(); // Value of score (00000 here). _vm->_graphics->seuDrawPicture(110, 0, 19); // Time: showTime(); // Value of time. _vm->_graphics->refreshScreen(); // From the original core cycle: initRunner(20, 70, 48, 54, _vm->_rnd->getRandomNumber(4) + 1, _vm->_rnd->getRandomNumber(3) - 2); initRunner(600, 70, 48, 54, _vm->_rnd->getRandomNumber(4) + 1, _vm->_rnd->getRandomNumber(3) - 2); initRunner(600, 100, 61, 67, (-(int8)_vm->_rnd->getRandomNumber(4)) + 1, _vm->_rnd->getRandomNumber(3) - 2); initRunner(20, 100, 61, 67, (-(int8)_vm->_rnd->getRandomNumber(4)) + 1, _vm->_rnd->getRandomNumber(3) - 2); } void ShootEmUp::initRunner(int16 x, int16 y, byte f1, byte f2, int8 ix, int8 iy) { for (int i = 0; i < 4; i++) { if (_running[i]._x == kFlag) { _running[i]._x = x; _running[i]._y = y; _running[i]._frame = f1; _running[i]._tooHigh = f2; _running[i]._lowest = f1; _running[i]._ix = ix; _running[i]._iy = iy; if ((ix = 0) && (iy = 0)) _running[i]._ix = 2; // To stop them running on the spot! _running[i]._frameDelay = kFrameDelayMax; return; } } } void ShootEmUp::moveAvvy() { if (_avvyWas < _avvyPos) _avvyFacing = kFacingRight; else if (_avvyWas > _avvyPos) _avvyFacing = kFacingLeft; if (!_firing) { if (_avvyWas == _avvyPos) _avvyAnim = 1; else { _avvyAnim++; if (_avvyAnim == 6) _avvyAnim = 0; } } if (_avvyFacing == kAvvyShoots) define(_avvyPos, kAvvyY, kShooting[_avvyAnim], 0, 0, 1, false, true); else define(_avvyPos, kAvvyY, _avvyAnim + _avvyFacing, 0, 0, 1, false, true); _avvyWas = _avvyPos; if (_avvyFacing == kAvvyShoots) { if (_avvyAnim == 6) { _avvyFacing = _wasFacing; _avvyAnim = 0; _firing = false; } else _avvyAnim++; } } void ShootEmUp::readKbd() { warning("STUB: ShootEmUp::readKbd()"); } void ShootEmUp::animate() { if (_vm->_rnd->getRandomNumber(9) == 1) showStock(getStockNumber(_vm->_rnd->getRandomNumber(5))); for (int i = 0; i < 7; i++) { if (_stockStatus[i] > 5) { _stockStatus[i]--; if (_stockStatus[i] == 8) { _stockStatus[i] = 0; showStock(i); } } } } void ShootEmUp::collisionCheck() { for (int i = 0; i < 99; i++) { if ((_sprites[i]._x != kFlag) && (_sprites[i]._missile) && (_sprites[i]._y < 60) && (_sprites[i]._timeout == 1)) { int distFromSide = (_sprites[i]._x - 20) % 90; int thisStock = (_sprites[i]._x - 20) / 90; if ((!_hasEscaped[thisStock]) && (distFromSide > 17) && (distFromSide < 34)) { _vm->_sound->playNote(999, 3); _vm->_system->delayMillis(3); define(_sprites[i]._x + 20, _sprites[i]._y, 26 + _vm->_rnd->getRandomNumber(1), 3, 1, 12, false, true); // Well done! define(thisStock * 90 + 20, 30, 31, 0, 0, 7, false, false); // Face of man defineCameo(thisStock * 90 + 20 + 10, 35, 40, 7); // Splat! define(thisStock * 90 + 20 + 20, 50, 34 + _vm->_rnd->getRandomNumber(4), 0, 2, 9, false, true); // Oof! _stockStatus[thisStock] = 17; gain(3); // Score for hitting a face. if (_escaping && (_escapeStock = thisStock)) { // Hit the escaper. _vm->_sound->playNote(1777, 1); _vm->_system->delayMillis(1); gain(5); // Bonus for hitting escaper. _escaping = false; newEscape(); } } else { define(_sprites[i]._x, _sprites[i]._y, 83 + _vm->_rnd->getRandomNumber(2), 2, 2, 17, false, true); // Missed! if ((!_hasEscaped[thisStock]) && (distFromSide > 3) && (distFromSide < 43)) { define(thisStock * 90 + 20, 30, 30, 0, 0, 7, false, false); // Face of man if (distFromSide > 35) defineCameo(_sprites[i]._x - 27, 35, 40, 7); // Splat! else defineCameo(_sprites[i]._x - 7, 35, 40, 7); _stockStatus[thisStock] = 17; } } } } } void ShootEmUp::turnAround(byte who, bool randomX) { if (randomX) { int8 ix = (_vm->_rnd->getRandomNumber(4) + 1); if (_running[who]._ix > 0) _running[who]._ix = -(ix); else _running[who]._ix = ix; } else _running[who]._ix = -(_running[who]._ix); _running[who]._iy = -(_running[who]._iy); } void ShootEmUp::bumpFolk() { for (int i = 0; i < 4; i++) { if (_running[i]._x != kFlag) { for (int j = i + 1; j < 4; j++) { bool overlaps = overlap(_running[i]._x, _running[i]._y, _running[i]._x + 17, _running[i]._y + 24, _running[j]._x, _running[j]._y, _running[j]._x + 17, _running[j]._y + 24); if ((_running[i]._x != kFlag) && overlaps) { turnAround(i, false); // Opp. directions. turnAround(j, false); } } } } } void ShootEmUp::peopleRunning() { if (_count321 != 0) return; for (int i = 0; i < 4; i++) { if (_running[i]._x != kFlag) { if (((_running[i]._y + _running[i]._iy) <= 53) || ((_running[i]._y + _running[i]._iy) >= 120)) _running[i]._iy = -(_running[i]._iy); byte frame = 0; if (_running[i]._ix < 0) frame = _running[i]._frame; else frame = _running[i]._frame + 7; define(_running[i]._x, _running[i]._y, frame, 0, 0, 1, false, true); if (_running[i]._frameDelay == 0) { _running[i]._frame++; if (_running[i]._frame == _running[i]._tooHigh) _running[i]._frame = _running[i]._lowest; _running[i]._frameDelay = kFrameDelayMax; _running[i]._y += _running[i]._iy; } else _running[i]._frameDelay--; if (((_running[i]._x + _running[i]._ix) <= 0) || ((_running[i]._x + _running[i]._ix) >= 620)) turnAround(i, true); _running[i]._x += _running[i]._ix; } } } void ShootEmUp::updateTime() { if (_count321 != 0) return; _timeThisSecond++; if (_timeThisSecond < kTimesASecond) return; _time--; showTime(); _timeThisSecond = 0; if (_time <= kFlashTime) { int timeMode = 0; if ((_time % 2) == 1) timeMode = 20; // Normal 'Time:' else timeMode = 86; // Flash 'Time:' _vm->_graphics->seuDrawPicture(110, 0, timeMode); } } void ShootEmUp::hitPeople() { if (_count321 != 0) return; for (int i = 0; i < 99; i++) { if ((_sprites[i]._missile) && (_sprites[i]._x != kFlag)) { for (int j = 0; j < 4; j++) { bool overlaps = overlap(_sprites[i]._x, _sprites[i]._y, _sprites[i]._x + 7, _sprites[i]._y + 10, _running[j]._x, _running[j]._y, _running[j]._x + 17, _running[j]._y + 24); if ((_running[j]._x != kFlag) && (overlaps)) { _vm->_sound->playNote(7177, 1); _sprites[i]._x = kFlag; gain(-5); define(_running[j]._x + 20, _running[j]._y + 3, 34 + _vm->_rnd->getRandomNumber(5), 1, 3, 9, false, true); // Oof! define(_sprites[i]._x, _sprites[i]._y, 83, 1, 0, 17, false, true); // Oops! } } } } } void ShootEmUp::escapeCheck() { if (_count321 != 0) return; if (_escapeCount > 0) { _escapeCount--; return; } // Escape_count = 0; now what ? if (_escaping) { if (_gotOut) { newEscape(); _escaping = false; _vm->_graphics->seuDrawPicture(_escapeStock * 90 + 20, 30, kStocks + 4); } else { _vm->_graphics->seuDrawPicture(_escapeStock * 90 + 20, 30, kStocks + 5); _escapeCount = 20; _gotOut = true; define(_escapeStock * 90 + 20, 50, 25, 0, 2, 17, false, true); // Escaped! gain(-10); _hasEscaped[_escapeStock] = true; _howManyHaveEscaped++; if (_howManyHaveEscaped == 7) _time = 0; } } else { _escapeStock = getStockNumber(_vm->_rnd->getRandomNumber(6)); _escaping = true; _gotOut = false; _vm->_graphics->seuDrawPicture(_escapeStock * 90 + 20, 30, kStocks + 2); // Smiling! _escapeCount = 200; } } void ShootEmUp::check321() { if (_count321 == 0) return; _count321--; switch (_count321) { case 84: define(320, 60, 16, 2, 1, 94, false, true); break; case 169: define(320, 60, 15, 0, 1, 94, false, true); break; case 254: define(320, 60, 14, -2, 1, 94, false, true); define(0, 100, 18, 2, 0, 254, false, true); break; default: break; } } } // End of namespace Avalanche