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

1237 lines
31 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/>.
*
*/
#include "graphics/cursorman.h"
#include "gnap/gnap.h"
#include "gnap/datarchive.h"
#include "gnap/gamesys.h"
#include "gnap/resource.h"
#include "gnap/sound.h"
#include "common/config-manager.h"
#include "common/debug-channels.h"
#include "common/timer.h"
#include "common/winexe_pe.h"
#include "graphics/wincursor.h"
#include "engines/util.h"
namespace Gnap {
static const int kCursors[] = {
LOOK_CURSOR,
GRAB_CURSOR,
TALK_CURSOR,
PLAT_CURSOR
};
static const int kDisabledCursors[] = {
NOLOOK_CURSOR,
NOGRAB_CURSOR,
NOTALK_CURSOR,
NOPLAT_CURSOR
};
static const char *kCursorNames[] = {
"LOOK_CURSOR",
"GRAB_CURSOR",
"TALK_CURSOR",
"PLAT_CURSOR",
"NOLOOK_CURSOR",
"NOGRAB_CURSOR",
"NOTALK_CURSOR",
"NOPLAT_CURSOR",
"EXIT_L_CURSOR",
"EXIT_R_CURSOR",
"EXIT_U_CURSOR",
"EXIT_D_CURSOR",
"EXIT_NE_CURSOR",
"EXIT_NW_CURSOR",
"EXIT_SE_CURSOR",
"EXIT_SW_CURSOR",
"WAIT_CURSOR"
};
static const int kCursorSpriteIds[30] = {
0x005, 0x008, 0x00A, 0x004, 0x009, 0x003,
0x006, 0x007, 0x00D, 0x00F, 0x00B, 0x00C,
0x019, 0x01C, 0x015, 0x014, 0x010, 0x01A,
0x018, 0x013, 0x011, 0x012, 0x01B, 0x016,
0x017, 0x01D, 0x01E, 0x01F, 0x76A, 0x76B
};
static const char *kSceneNames[] = {
"open", "pigpn", "truck", "creek", "mafrm", "frbrn", "inbrn", "crash",
"porch", "barbk", "kitch", "bar", "juke", "wash", "john", "jkbox",
"brawl", "stret", "frtoy", "intoy", "frgro", "park", "cash", "ingro",
"frcir", "booth", "circ", "outcl", "incln", "monk", "elcir", "beer",
"pig2", "trk2", "creek", "frbrn", "inbrn", "mafrm", "infrm", "efair",
"fair", "souv", "chick", "ship", "kiss", "disco", "boot", "can",
"can2", "drive", "tung", "puss", "space", "phone", "can3"
};
GnapEngine::GnapEngine(OSystem *syst, const ADGameDescription *gd) :
Engine(syst), _gameDescription(gd) {
_random = new Common::RandomSource("gnap");
Engine::syncSoundSettings();
_exe = nullptr;
_dat = nullptr;
_spriteCache = nullptr;
_soundCache = nullptr;
_sequenceCache = nullptr;
_gameSys = nullptr;
_soundMan = nullptr;
_debugger = nullptr;
_gnap = nullptr;
_plat = nullptr;
_font = nullptr;
_scene = nullptr;
_music = nullptr;
_tempThumbnail = nullptr;
_menuBackgroundSurface = nullptr;
_menuQuitQuerySprite = nullptr;
_largeSprite = nullptr;
_menuSaveLoadSprite = nullptr;
_menuSprite2 = nullptr;
_menuSprite1 = nullptr;
_spriteHandle = nullptr;
_cursorSprite = nullptr;
_pauseSprite = nullptr;
_backgroundSurface = nullptr;
_wasSavegameLoaded = false;
_isWaiting = false;
_sceneWaiting = false;
_menuDone = false;
_sceneDone = false;
_isLeavingScene = false;
_isStockDatLoaded = false;
_gameDone = false;
_isPaused = false;
_sceneSavegameLoaded = false;
for (int i = 0; i < kMaxTimers; ++i)
_savedTimers[i] = _timers[i] = 0;
_mousePos = Common::Point(0, 0);
_currGrabCursorX = _currGrabCursorY = 0;
_idleTimerIndex = -1;
_menuStatus = 0;
_menuSpritesIndex = -1;
_savegameIndex = -1;
_gridMinX = 0;
_gridMinY = 0;
_gridMaxX = 0;
_gridMaxY = 0;
_toyUfoNextSequenceId = -1;
_toyUfoSequenceId = -1;
_toyUfoId = -1;
_toyUfoActionStatus = -1;
_toyUfoX = 0;
_toyUfoY = 0;
_s18GarbageCanPos = 0;
for (int i = 0; i < 7; i++)
_savegameSprites[i] = nullptr;
for (int i = 0; i < 30; i++)
_menuInventorySprites[i] = nullptr;
_newSceneNum = 0;
_inventory = 0;
_gameFlags = 0;
_hotspotsCount = 0;
_sceneClickedHotspot = -1;
_newCursorValue = 0;
_cursorValue = 0;
_verbCursor = 0;
_cursorIndex = -1;
_leftClickMouseX = 0;
_leftClickMouseY = 0;
_grabCursorSprite = nullptr;
_grabCursorSpriteIndex = 0;
_newGrabCursorSpriteIndex = 0;
_fullScreenSprite = nullptr;
_fullScreenSpriteId = 0;
_deviceX1 = 0;
_deviceY1 = 0;
_soundTimerIndexA = 0;
_soundTimerIndexB = 0;
_soundTimerIndexC = 0;
_loadGameSlot = -1;
_lastUpdateClock = 0;
_prevSceneNum = -1;
_currentSceneNum = -1;
}
GnapEngine::~GnapEngine() {
delete _random;
delete _music;
delete _tempThumbnail;
}
Common::Error GnapEngine::run() {
// Initialize the graphics mode to RGBA8888
#if defined(SCUMM_BIG_ENDIAN)
Graphics::PixelFormat format = Graphics::PixelFormat(4, 8, 8, 8, 8, 0, 8, 16, 24);
#else
Graphics::PixelFormat format = Graphics::PixelFormat(4, 8, 8, 8, 8, 24, 16, 8, 0);
#endif
initGraphics(800, 600, &format);
// We do not support color conversion yet
if (_system->getScreenFormat() != format)
return Common::kUnsupportedColorMode;
_lastUpdateClock = 0;
// >>>>> Variable initialization
_cursorIndex = -1;
_verbCursor = 1;
if (ConfMan.hasKey("save_slot"))
_loadGameSlot = ConfMan.getInt("save_slot");
invClear();
clearFlags();
_grabCursorSprite = nullptr;
_newGrabCursorSpriteIndex = -1;
_backgroundSurface = nullptr;
_isStockDatLoaded = false;
_gameDone = false;
_isPaused = false;
_pauseSprite = nullptr;
////////////////////////////////////////////////////////////////////////////
_exe = new Common::PEResources();
if (!_exe->loadFromEXE("ufos.exe"))
error("Could not load ufos.exe");
#ifdef USE_FREETYPE2
Common::SeekableReadStream *stream = _exe->getResource(Common::kWinFont, 2000);
_font = Graphics::loadTTFFont(*stream, 24);
if (!_font)
warning("Unable to load font");
delete stream;
#else
_font = nullptr;
#endif
_dat = new DatManager();
_spriteCache = new SpriteCache(_dat);
_soundCache = new SoundCache(_dat);
_sequenceCache = new SequenceCache(_dat);
_gameSys = new GameSys(this);
_soundMan = new SoundMan(this);
_debugger = new Debugger();
setDebugger(_debugger);
_gnap = new PlayerGnap(this);
_plat = new PlayerPlat(this);
_menuBackgroundSurface = nullptr;
initGlobalSceneVars();
mainLoop();
delete _plat;
delete _gnap;
delete _soundMan;
delete _gameSys;
delete _sequenceCache;
delete _soundCache;
delete _spriteCache;
delete _dat;
//delete _debugger; Debugger is deleted by Engine
delete _font;
delete _exe;
return Common::kNoError;
}
void GnapEngine::updateEvents() {
Common::Event event;
while (_eventMan->pollEvent(event)) {
switch (event.type) {
case Common::EVENT_KEYDOWN:
_keyPressState[event.kbd.keycode] = true;
_keyDownState[event.kbd.keycode] = true;
break;
case Common::EVENT_KEYUP:
_keyDownState[event.kbd.keycode] = false;
break;
case Common::EVENT_MOUSEMOVE:
_mousePos = event.mouse;
break;
case Common::EVENT_LBUTTONUP:
_mouseButtonState._left = false;
break;
case Common::EVENT_LBUTTONDOWN:
_leftClickMouseX = event.mouse.x;
_leftClickMouseY = event.mouse.y;
_mouseButtonState._left = true;
_mouseClickState._left = true;
break;
case Common::EVENT_RBUTTONUP:
_mouseButtonState._right = false;
break;
case Common::EVENT_RBUTTONDOWN:
_mouseButtonState._right = true;
_mouseClickState._right = true;
break;
case Common::EVENT_QUIT:
quitGame();
break;
default:
break;
}
}
}
void GnapEngine::gameUpdateTick() {
updateEvents();
if (shouldQuit()) {
_gameDone = true;
_sceneDone = true;
}
int currClock = _system->getMillis();
if (currClock >= _lastUpdateClock + 66) {
_gameSys->fatUpdate();
_gameSys->drawSprites();
_gameSys->updateScreen();
_gameSys->updatePlaySounds();
_gameSys->_gameSysClock++;
updateTimers();
_lastUpdateClock = currClock;
}
_soundMan->update();
_system->updateScreen();
_system->delayMillis(5);
}
void GnapEngine::saveTimers() {
for (int i = 0; i < kMaxTimers; ++i )
_savedTimers[i] = _timers[i];
}
void GnapEngine::restoreTimers() {
for (int i = 0; i < kMaxTimers; ++i )
_timers[i] = _savedTimers[i];
}
void GnapEngine::pauseGame() {
if (!_isPaused) {
saveTimers();
hideCursor();
setGrabCursorSprite(-1);
_pauseSprite = _gameSys->createSurface(0x1076C);
_gameSys->insertSpriteDrawItem(_pauseSprite, (800 - _pauseSprite->w) / 2, (600 - _pauseSprite->h) / 2, 356);
_lastUpdateClock = 0;
gameUpdateTick();
playMidi("pause.mid");
_isPaused = true;
}
}
void GnapEngine::resumeGame() {
if (_isPaused) {
restoreTimers();
_gameSys->removeSpriteDrawItem(_pauseSprite, 356);
_lastUpdateClock = 0;
gameUpdateTick();
deleteSurface(&_pauseSprite);
stopMidi();
_isPaused = false;
clearAllKeyStatus1();
_mouseClickState._left = false;
_mouseClickState._right = false;
showCursor();
_gameSys->_gameSysClock = 0;
_gameSys->_lastUpdateClock = 0;
}
}
void GnapEngine::updatePause() {
while (_isPaused && !_gameDone) {
gameUpdateTick();
if (isKeyStatus1(Common::KEYCODE_p)) {
clearKeyStatus1(Common::KEYCODE_p);
resumeGame();
}
}
}
int GnapEngine::getRandom(int max) {
return _random->getRandomNumber(max - 1);
}
int GnapEngine::readSavegameDescription(int savegameNum, Common::String &description) {
description = Common::String::format("Savegame %d", savegameNum);
return 0;
}
int GnapEngine::loadSavegame(int savegameNum) {
return 1;
}
void GnapEngine::delayTicks(int val, int idx = 0, bool updateCursor = false) {
int startTick = _timers[idx];
_timers[idx] = val;
while (_timers[idx] && !_gameDone) {
gameUpdateTick();
if (updateCursor)
updateGrabCursorSprite(0, 0);
}
startTick -= _timers[idx];
if (startTick < 0)
startTick = 0;
_timers[idx] = startTick;
}
void GnapEngine::delayTicksA(int val, int idx) {
delayTicks(val, idx);
}
void GnapEngine::delayTicksCursor(int val) {
delayTicks(val, 0, true);
}
void GnapEngine::setHotspot(int index, int16 x1, int16 y1, int16 x2, int16 y2, uint16 flags,
int16 walkX, int16 walkY) {
_hotspots[index]._rect = Common::Rect(x1, y1, x2, y2);
_hotspots[index]._flags = flags;
_hotspotsWalkPos[index] = Common::Point(walkX, walkY);
}
int GnapEngine::getHotspotIndexAtPos(Common::Point pos) {
for (int i = 0; i < _hotspotsCount; ++i) {
if (!_hotspots[i].isFlag(SF_DISABLED) && _hotspots[i].isPointInside(pos))
return i;
}
return -1;
}
void GnapEngine::updateCursorByHotspot() {
if (!_isWaiting) {
int hotspotIndex = getHotspotIndexAtPos(_mousePos);
if (_debugger->_showHotspotNumber) {
// NOTE This causes some display glitches
char t[256];
sprintf(t, "hotspot = %2d", hotspotIndex);
if (!_font)
_gameSys->fillSurface(nullptr, 10, 10, 80, 16, 0, 0, 0);
else
_gameSys->fillSurface(nullptr, 8, 9, _font->getStringWidth(t) + 10, _font->getFontHeight() + 2, 0, 0, 0);
_gameSys->drawTextToSurface(nullptr, 10, 10, 255, 255, 255, t);
}
if (hotspotIndex < 0)
setCursor(kDisabledCursors[_verbCursor]);
else if (_hotspots[hotspotIndex]._flags & SF_EXIT_L_CURSOR)
setCursor(EXIT_L_CURSOR);
else if (_hotspots[hotspotIndex]._flags & SF_EXIT_R_CURSOR)
setCursor(EXIT_R_CURSOR);
else if (_hotspots[hotspotIndex]._flags & SF_EXIT_U_CURSOR)
setCursor(EXIT_U_CURSOR);
else if (_hotspots[hotspotIndex]._flags & SF_EXIT_D_CURSOR)
setCursor(EXIT_D_CURSOR);
else if (_hotspots[hotspotIndex]._flags & SF_EXIT_NE_CURSOR)
setCursor(EXIT_NE_CURSOR);
else if (_hotspots[hotspotIndex]._flags & SF_EXIT_NW_CURSOR)
setCursor(EXIT_NW_CURSOR);
else if (_hotspots[hotspotIndex]._flags & SF_EXIT_SE_CURSOR)
setCursor(EXIT_SE_CURSOR);
else if (_hotspots[hotspotIndex]._flags & SF_EXIT_SW_CURSOR)
setCursor(EXIT_SW_CURSOR);
else if (_hotspots[hotspotIndex]._flags & (1 << _verbCursor))
setCursor(kCursors[_verbCursor]);
else
setCursor(kDisabledCursors[_verbCursor]);
}
// Update platypus hotspot
_hotspots[0]._rect = Common::Rect(_gridMinX + 75 * _plat->_pos.x - 30, _gridMinY + 48 * _plat->_pos.y - 100
, _gridMinX + 75 * _plat->_pos.x + 30, _gridMinY + 48 * _plat->_pos.y);
}
int GnapEngine::getClickedHotspotId() {
int result = -1;
if (_isWaiting)
_mouseClickState._left = false;
else if (_mouseClickState._left) {
int hotspotIndex = getHotspotIndexAtPos(Common::Point(_leftClickMouseX, _leftClickMouseY));
if (hotspotIndex >= 0) {
_mouseClickState._left = false;
_timers[3] = 300;
result = hotspotIndex;
}
}
return result;
}
int GnapEngine::getInventoryItemSpriteNum(int index) {
return kCursorSpriteIds[index];
}
void GnapEngine::updateMouseCursor() {
if (_mouseClickState._right) {
// Switch through the verb cursors
_mouseClickState._right = false;
_timers[3] = 300;
_verbCursor = (_verbCursor + 1) % 4;
if (!isFlag(kGFPlatypus) && _verbCursor == PLAT_CURSOR && _cursorValue == 1)
_verbCursor = (_verbCursor + 1) % 4;
if (!_isWaiting)
setCursor(kDisabledCursors[_verbCursor]);
setGrabCursorSprite(-1);
}
if (_isWaiting && ((_gnap->_actionStatus < 0 && _plat->_actionStatus < 0) || _sceneWaiting)) {
setCursor(kDisabledCursors[_verbCursor]);
showCursor();
_isWaiting = false;
} else if (!_isWaiting && (_gnap->_actionStatus >= 0 || _plat->_actionStatus >= 0) && !_sceneWaiting) {
setCursor(WAIT_CURSOR);
hideCursor();
_isWaiting = true;
}
}
void GnapEngine::setVerbCursor(int verbCursor) {
_verbCursor = verbCursor;
if (!_isWaiting)
setCursor(kDisabledCursors[_verbCursor]);
}
void GnapEngine::setCursor(int cursorIndex) {
if (_cursorIndex != cursorIndex) {
const char *cursorName = kCursorNames[cursorIndex];
Graphics::WinCursorGroup *cursorGroup = Graphics::WinCursorGroup::createCursorGroup(_exe, Common::WinResourceID(cursorName));
if (cursorGroup) {
Graphics::Cursor *cursor = cursorGroup->cursors[0].cursor;
CursorMan.replaceCursor(cursor);
delete cursorGroup;
}
_cursorIndex = cursorIndex;
}
}
void GnapEngine::showCursor() {
CursorMan.showMouse(true);
}
void GnapEngine::hideCursor() {
CursorMan.showMouse(false);
}
void GnapEngine::setGrabCursorSprite(int index) {
freeGrabCursorSprite();
if (index >= 0) {
createGrabCursorSprite(makeRid(1, kCursorSpriteIds[index]));
setVerbCursor(GRAB_CURSOR);
}
_grabCursorSpriteIndex = index;
}
void GnapEngine::createGrabCursorSprite(int spriteId) {
_grabCursorSprite = _gameSys->createSurface(spriteId);
_gameSys->insertSpriteDrawItem(_grabCursorSprite,
_mousePos.x - (_grabCursorSprite->w / 2),
_mousePos.y - (_grabCursorSprite->h / 2),
300);
delayTicks(5);
}
void GnapEngine::freeGrabCursorSprite() {
if (_grabCursorSprite) {
_gameSys->removeSpriteDrawItem(_grabCursorSprite, 300);
_gameSys->removeSpriteDrawItem(_grabCursorSprite, 301);
delayTicks(5);
deleteSurface(&_grabCursorSprite);
}
}
void GnapEngine::updateGrabCursorSprite(int x, int y) {
if (_grabCursorSprite) {
int newGrabCursorX = _mousePos.x - (_grabCursorSprite->w / 2) - x;
int newGrabCursorY = _mousePos.y - (_grabCursorSprite->h / 2) - y;
if (_currGrabCursorX != newGrabCursorX || _currGrabCursorY != newGrabCursorY) {
_currGrabCursorX = newGrabCursorX;
_currGrabCursorY = newGrabCursorY;
Common::Rect rect(newGrabCursorX, newGrabCursorY,
newGrabCursorX + _grabCursorSprite->w, newGrabCursorY + _grabCursorSprite->h);
_gameSys->invalidateGrabCursorSprite(300, rect, _grabCursorSprite, _grabCursorSprite);
}
}
}
void GnapEngine::invClear() {
_inventory = 0;
}
void GnapEngine::invAdd(int itemId) {
_inventory |= (1 << itemId);
}
void GnapEngine::invRemove(int itemId) {
_inventory &= ~(1 << itemId);
}
bool GnapEngine::invHas(int itemId) {
return (_inventory & (1 << itemId)) != 0;
}
void GnapEngine::clearFlags() {
_gameFlags = 0;
}
void GnapEngine::setFlag(int num) {
_gameFlags |= (1 << num);
}
void GnapEngine::clearFlag(int num) {
_gameFlags &= ~(1 << num);
}
bool GnapEngine::isFlag(int num) {
return (_gameFlags & (1 << num)) != 0;
}
Graphics::Surface *GnapEngine::addFullScreenSprite(int resourceId, int id) {
_fullScreenSpriteId = id;
_fullScreenSprite = _gameSys->createSurface(resourceId);
_gameSys->insertSpriteDrawItem(_fullScreenSprite, 0, 0, id);
return _fullScreenSprite;
}
void GnapEngine::removeFullScreenSprite() {
_gameSys->removeSpriteDrawItem(_fullScreenSprite, _fullScreenSpriteId);
deleteSurface(&_fullScreenSprite);
}
void GnapEngine::showFullScreenSprite(int resourceId) {
hideCursor();
setGrabCursorSprite(-1);
addFullScreenSprite(resourceId, 256);
while (!_mouseClickState._left && !isKeyStatus1(Common::KEYCODE_ESCAPE)
&& !isKeyStatus1(Common::KEYCODE_SPACE) && !isKeyStatus1(Common::KEYCODE_RETURN) && !_gameDone) {
gameUpdateTick();
}
_mouseClickState._left = false;
clearKeyStatus1(Common::KEYCODE_ESCAPE);
clearKeyStatus1(Common::KEYCODE_RETURN);
clearKeyStatus1(Common::KEYCODE_SPACE);
removeFullScreenSprite();
showCursor();
}
void GnapEngine::queueInsertDeviceIcon() {
_gameSys->insertSequence(0x10849, 20, 0, 0, kSeqNone, 0, _deviceX1, _deviceY1);
}
void GnapEngine::insertDeviceIconActive() {
_gameSys->insertSequence(0x1084A, 21, 0, 0, kSeqNone, 0, _deviceX1, _deviceY1);
}
void GnapEngine::removeDeviceIconActive() {
_gameSys->removeSequence(0x1084A, 21, true);
}
void GnapEngine::setDeviceHotspot(int hotspotIndex, int x1, int y1, int x2, int y2) {
_deviceX1 = x1;
_deviceY1 = y1;
int deviceX2 = x2;
int deviceY2 = y2;
if (x1 == -1)
_deviceX1 = 730;
if (x2 == -1)
deviceX2 = 780;
if (y1 == -1)
_deviceY1 = 14;
if (y2 == -1)
deviceY2 = 79;
_hotspots[hotspotIndex]._rect = Common::Rect(_deviceX1, _deviceY1, deviceX2, deviceY2);
_hotspots[hotspotIndex]._flags = SF_TALK_CURSOR | SF_GRAB_CURSOR | SF_LOOK_CURSOR;
}
int GnapEngine::getSequenceTotalDuration(int resourceId) {
SequenceResource *sequenceResource = _sequenceCache->get(resourceId);
int maxValue = 0;
for (int i = 0; i < sequenceResource->_animationsCount; ++i) {
SequenceAnimation *animation = &sequenceResource->_animations[i];
if (animation->_additionalDelay + animation->_maxTotalDuration > maxValue)
maxValue = animation->_additionalDelay + animation->_maxTotalDuration;
}
int totalDuration = maxValue + sequenceResource->_totalDuration;
_sequenceCache->release(resourceId);
return totalDuration;
}
bool GnapEngine::isSoundPlaying(int resourceId) {
return _soundMan->isSoundPlaying(resourceId);
}
void GnapEngine::playSound(int resourceId, bool looping) {
debugC(kDebugBasic, "playSound(%08X, %d)", resourceId, looping);
_soundMan->playSound(resourceId, looping);
}
void GnapEngine::stopSound(int resourceId) {
_soundMan->stopSound(resourceId);
}
void GnapEngine::setSoundVolume(int resourceId, int volume) {
_soundMan->setSoundVolume(resourceId, volume);
}
void GnapEngine::updateTimers() {
for (int i = 0; i < kMaxTimers; ++i)
if (_timers[i] > 0)
--_timers[i];
}
void GnapEngine::initGameFlags(int num) {
invClear();
invAdd(kItemMagazine);
switch (num) {
case 1:
setFlag(kGFPlatypusTalkingToAssistant);
break;
case 2:
clearFlags();
break;
case 3:
invAdd(kItemDiceQuarterHole);
clearFlags();
break;
case 4:
invAdd(kItemDiceQuarterHole);
invAdd(kItemHorn);
invAdd(kItemLightbulb);
clearFlags();
setFlag(kGFPlatypus);
setFlag(kGFMudTaken);
setFlag(kGFNeedleTaken);
setFlag(kGFTwigTaken);
setFlag(kGFUnk04);
setFlag(kGFKeysTaken);
setFlag(kGFGrassTaken);
setFlag(kGFBarnPadlockOpen);
break;
default:
break;
}
}
void GnapEngine::loadStockDat() {
if (!_isStockDatLoaded) {
_isStockDatLoaded = true;
_dat->open(1, "stock_n.dat");
// The pre-loading of data is skipped as it's no longer required on modern hardware
}
}
void GnapEngine::mainLoop() {
_newCursorValue = 1;
_cursorValue = -1;
_newSceneNum = 0;
_currentSceneNum = 55;
_prevSceneNum = 55;
invClear();
clearFlags();
_grabCursorSpriteIndex = -1;
_grabCursorSprite = nullptr;
loadStockDat();
if (_loadGameSlot != -1) {
// Load a savegame
int slot = _loadGameSlot;
_loadGameSlot = -1;
loadGameState(slot);
_wasSavegameLoaded = true;
showCursor();
}
while (!_gameDone) {
debugC(kDebugBasic, "New scene: %d", _newSceneNum);
_prevSceneNum = _currentSceneNum;
_currentSceneNum = _newSceneNum;
debugC(kDebugBasic, "GnapEngine::mainLoop() _prevSceneNum: %d; _currentSceneNum: %d", _prevSceneNum, _currentSceneNum);
if (_newCursorValue != _cursorValue) {
debugC(kDebugBasic, "_newCursorValue: %d", _newCursorValue);
_cursorValue = _newCursorValue;
if (!_wasSavegameLoaded)
initGameFlags(_cursorValue);
}
_sceneSavegameLoaded = _wasSavegameLoaded;
_wasSavegameLoaded = false;
initScene();
runSceneLogic();
afterScene();
_soundMan->stopAll();
// Force purge all resources
_sequenceCache->purge(true);
_soundCache->purge(true);
_spriteCache->purge(true);
}
if (_backgroundSurface)
deleteSurface(&_backgroundSurface);
_dat->close(1);
}
void GnapEngine::initScene() {
Common::String datFilename;
_isLeavingScene = false;
_sceneDone = false;
_newSceneNum = 55;
_gnap->_actionStatus = -1;
_plat->_actionStatus = -1;
_gnap->initBrainPulseRndValue();
hideCursor();
clearAllKeyStatus1();
_mouseClickState._left = false;
_mouseClickState._right = false;
_sceneClickedHotspot = -1;
datFilename = Common::String::format("%s_n.dat", kSceneNames[_currentSceneNum]);
debugC(kDebugBasic, "GnapEngine::initScene() datFilename: %s", datFilename.c_str());
_dat->open(0, datFilename.c_str());
int backgroundId = initSceneLogic();
if (!_backgroundSurface) {
if (_currentSceneNum != 0)
_backgroundSurface = _gameSys->loadBitmap(makeRid(1, 0x8AA));
else
_backgroundSurface = _gameSys->loadBitmap(makeRid(0, backgroundId));
_gameSys->setBackgroundSurface(_backgroundSurface, 0, 500, 1, 1000);
}
if (_currentSceneNum != 0 && _currentSceneNum != 16 && _currentSceneNum != 47 &&
_currentSceneNum != 48 && _currentSceneNum != 54) {
_gameSys->drawBitmap(backgroundId);
}
if ((_cursorValue == 4 && isFlag(kGFGnapControlsToyUFO)) || _currentSceneNum == 41)
playSound(makeRid(1, 0x8F6), true);
}
void GnapEngine::endSceneInit() {
showCursor();
if (_newGrabCursorSpriteIndex >= 0)
setGrabCursorSprite(_newGrabCursorSpriteIndex);
}
void GnapEngine::afterScene() {
if (_gameDone)
return;
if (_newCursorValue == _cursorValue && _newSceneNum != 0 && _newSceneNum != 16 &&
_newSceneNum != 47 && _newSceneNum != 48 && _newSceneNum != 54 && _newSceneNum != 49 &&
_newSceneNum != 50 && _newSceneNum != 51 && _newSceneNum != 52)
_newGrabCursorSpriteIndex = _grabCursorSpriteIndex;
else
_newGrabCursorSpriteIndex = -1;
setGrabCursorSprite(-1);
_gameSys->requestClear2(false);
_gameSys->requestClear1();
_gameSys->waitForUpdate();
_gameSys->requestClear2(false);
_gameSys->requestClear1();
_gameSys->waitForUpdate();
screenEffect(0, 0, 0, 0);
_dat->close(0);
for (int animationIndex = 0; animationIndex < 12; ++animationIndex)
_gameSys->setAnimation(0, 0, animationIndex);
clearKeyStatus1(Common::KEYCODE_p);
_mouseClickState._left = false;
_mouseClickState._right = false;
}
void GnapEngine::checkGameKeys() {
if (isKeyStatus1(Common::KEYCODE_p)) {
clearKeyStatus1(Common::KEYCODE_p);
pauseGame();
updatePause();
}
}
void GnapEngine::startSoundTimerA(int timerIndex) {
_soundTimerIndexA = timerIndex;
_timers[timerIndex] = getRandom(50) + 100;
}
int GnapEngine::playSoundA() {
static const int kSoundIdsA[] = {
0x93E, 0x93F, 0x941, 0x942, 0x943, 0x944,
0x945, 0x946, 0x947, 0x948, 0x949
};
int soundId = -1;
if (!_timers[_soundTimerIndexA]) {
_timers[_soundTimerIndexA] = getRandom(50) + 100;
soundId = kSoundIdsA[getRandom(11)];
playSound(soundId | 0x10000, false);
}
return soundId;
}
void GnapEngine::startSoundTimerB(int timerIndex) {
_soundTimerIndexB = timerIndex;
_timers[timerIndex] = getRandom(50) + 150;
}
int GnapEngine::playSoundB() {
static const int kSoundIdsB[] = {
0x93D, 0x929, 0x92A, 0x92B, 0x92C, 0x92D,
0x92E, 0x92F, 0x930, 0x931, 0x932, 0x933,
0x934, 0x935, 0x936, 0x937, 0x938, 0x939,
0x93A
};
int soundId = -1;
if (!_timers[_soundTimerIndexB]) {
_timers[_soundTimerIndexB] = getRandom(50) + 150;
soundId = kSoundIdsB[getRandom(19)];
playSound(soundId | 0x10000, false);
}
return soundId;
}
void GnapEngine::startSoundTimerC(int timerIndex) {
_soundTimerIndexC = timerIndex;
_timers[timerIndex] = getRandom(50) + 150;
}
int GnapEngine::playSoundC() {
static const int kSoundIdsC[] = {
0x918, 0x91F, 0x920, 0x922, 0x923, 0x924,
0x926
};
int soundId = -1;
if (!_timers[_soundTimerIndexC]) {
_timers[_soundTimerIndexC] = getRandom(50) + 150;
soundId = kSoundIdsC[getRandom(7)];
playSound(soundId | 0x10000, false);
}
return soundId;
}
void GnapEngine::startIdleTimer(int timerIndex) {
_idleTimerIndex = timerIndex;
_timers[timerIndex] = 3000;
}
void GnapEngine::updateIdleTimer() {
if (!_timers[_idleTimerIndex]) {
_timers[_idleTimerIndex] = 3000;
_gameSys->insertSequence(0x1088B, 255, 0, 0, kSeqNone, 0, 0, 75);
}
}
void GnapEngine::screenEffect(int dir, byte r, byte g, byte b) {
int startVal = 0;
if (dir == 1)
startVal = 300;
for (int y = startVal; y < startVal + 300 && !_gameDone; y += 50) {
_gameSys->fillSurface(nullptr, 0, y, 800, 50, r, g, b);
_gameSys->fillSurface(nullptr, 0, 549 - y + 1, 800, 50, r, g, b);
gameUpdateTick();
_system->delayMillis(50);
}
}
bool GnapEngine::isKeyStatus1(int key) {
return _keyPressState[key];
}
bool GnapEngine::isKeyStatus2(int key) {
return _keyDownState[key];
}
void GnapEngine::clearKeyStatus1(int key) {
_keyPressState[key] = false;
_keyDownState[key] = false;
}
void GnapEngine::clearAllKeyStatus1() {
memset(_keyPressState, 0, sizeof(_keyPressState));
memset(_keyDownState, 0, sizeof(_keyDownState));
}
void GnapEngine::deleteSurface(Graphics::Surface **surface) {
if (surface && *surface) {
(*surface)->free();
delete *surface;
*surface = nullptr;
}
}
bool GnapEngine::testWalk(int animationIndex, int someStatus, int gridX1, int gridY1, int gridX2, int gridY2) {
if (_mouseClickState._left && someStatus == _gnap->_actionStatus) {
_isLeavingScene = false;
_gameSys->setAnimation(0, 0, animationIndex);
_gnap->_actionStatus = -1;
_plat->_actionStatus = -1;
_gnap->walkTo(Common::Point(gridX1, gridY1), -1, -1, 1);
_plat->walkTo(Common::Point(gridX2, gridY2), -1, -1, 1);
_mouseClickState._left = false;
return true;
}
return false;
}
void GnapEngine::doCallback(int callback) {
switch (callback) {
case 8:
case 10:
case 20:
_scene->updateAnimationsCb();
break;
default:
break;
}
}
////////////////////////////////////////////////////////////////////////////////
void GnapEngine::initGlobalSceneVars() {
// Shared by scenes 17 && 18
_s18GarbageCanPos = 8;
// Toy UFO
_toyUfoId = 0;
_toyUfoActionStatus = -1;
_toyUfoX = 0;
_toyUfoY = 50;
}
void GnapEngine::playSequences(int fullScreenSpriteId, int sequenceId1, int sequenceId2, int sequenceId3) {
setGrabCursorSprite(-1);
_gameSys->setAnimation(sequenceId2, _gnap->_id, 0);
_gameSys->insertSequence(sequenceId2, _gnap->_id,
makeRid(_gnap->_sequenceDatNum, _gnap->_sequenceId), _gnap->_id,
kSeqSyncWait, 0, 15 * (5 * _gnap->_pos.x - 25), 48 * (_gnap->_pos.y - 8));
_gnap->_sequenceId = sequenceId2;
_gnap->_sequenceDatNum = 0;
while (_gameSys->getAnimationStatus(0) != 2 && !_gameDone)
gameUpdateTick();
hideCursor();
addFullScreenSprite(fullScreenSpriteId, 255);
_gameSys->setAnimation(sequenceId1, 256, 0);
_gameSys->insertSequence(sequenceId1, 256, 0, 0, kSeqNone, 0, 0, 0);
while (_gameSys->getAnimationStatus(0) != 2 && !_gameDone)
gameUpdateTick();
_gameSys->setAnimation(sequenceId3, _gnap->_id, 0);
_gameSys->insertSequence(sequenceId3, _gnap->_id,
makeRid(_gnap->_sequenceDatNum, _gnap->_sequenceId), _gnap->_id,
kSeqSyncWait, 0, 15 * (5 * _gnap->_pos.x - 25), 48 * (_gnap->_pos.y - 8));
removeFullScreenSprite();
showCursor();
_gnap->_sequenceId = sequenceId3;
}
void GnapEngine::toyUfoSetStatus(int flagNum) {
clearFlag(kGFUnk16);
clearFlag(kGFJointTaken);
clearFlag(kGFUnk18);
clearFlag(kGFGroceryStoreHatTaken);
setFlag(flagNum);
}
int GnapEngine::toyUfoGetSequenceId() {
if (isFlag(kGFUnk16))
return 0x84E;
if (isFlag(kGFJointTaken))
return 0x84B;
if (isFlag(kGFUnk18))
return 0x84D;
if (isFlag(kGFGroceryStoreHatTaken))
return 0x84C;
return 0x84E;
}
bool GnapEngine::toyUfoCheckTimer() {
if (!isFlag(kGFGnapControlsToyUFO) || isFlag(kGFUnk18) || _timers[9] ||
_toyUfoSequenceId == 0x870 || _toyUfoSequenceId == 0x871 || _toyUfoSequenceId == 0x872 || _toyUfoSequenceId == 0x873)
return false;
_sceneDone = true;
_newSceneNum = 41;
return true;
}
void GnapEngine::toyUfoFlyTo(int destX, int destY, int minX, int maxX, int minY, int maxY, int animationIndex) {
GridStruct flyNodes[34];
if (destX == -1)
destX = _leftClickMouseX;
if (destY == -1)
destY = _leftClickMouseY;
int clippedDestX = CLIP(destX, minX, maxX);
int clippedDestY = CLIP(destY, minY, maxY);
int dirX = 0, dirY = 0; // 0, -1 or 1
if (clippedDestX != _toyUfoX)
dirX = (clippedDestX - _toyUfoX) / ABS(clippedDestX - _toyUfoX);
if (clippedDestY != _toyUfoY)
dirY = (clippedDestY - _toyUfoY) / ABS(clippedDestY - _toyUfoY);
int deltaX = ABS(clippedDestX - _toyUfoX);
int deltaY = ABS(clippedDestY - _toyUfoY);
int i = 0;
if (deltaY > deltaX) {
int flyDirYIncr = 32;
int gridDistY = deltaY / flyDirYIncr;
int curMove = 0;
while (curMove < deltaY && i < 34) {
if (gridDistY - 5 >= i) {
flyDirYIncr = MIN(36, 8 * i + 8);
} else {
flyDirYIncr = MAX(6, flyDirYIncr - 3);
}
curMove += flyDirYIncr;
flyNodes[i]._gridX1 = _toyUfoX + dirX * deltaX * curMove / deltaY;
flyNodes[i]._gridY1 = _toyUfoY + dirY * curMove;
++i;
}
} else {
int flyDirXIncr = 36;
int gridDistX = deltaX / flyDirXIncr;
int curMove = 0;
while (curMove < deltaX && i < 34) {
if (gridDistX - 5 >= i) {
flyDirXIncr = MIN(38, 8 * i + 8);
} else {
flyDirXIncr = MAX(6, flyDirXIncr - 3);
}
curMove += flyDirXIncr;
flyNodes[i]._gridX1 = _toyUfoX + dirX * curMove;
flyNodes[i]._gridY1 = _toyUfoY + dirY * deltaY * curMove / deltaX;
++i;
}
}
int nodesCount = i - 1;
_toyUfoX = clippedDestX;
_toyUfoY = clippedDestY;
if (nodesCount > 0) {
int seqId = 0;
if (isFlag(kGFUnk16))
seqId = 0x867;
else if (isFlag(kGFJointTaken))
seqId = 0x84F;
else if (isFlag(kGFUnk18))
seqId = 0x85F;
else if (isFlag(kGFGroceryStoreHatTaken))
seqId = 0x857;
else
error("Unhandled flag in GnapEngine::toyUfoFlyTo(): 0x%x", _gameFlags);
flyNodes[0]._sequenceId = seqId;
flyNodes[0]._id = 0;
_gameSys->insertSequence(seqId | 0x10000, 0,
_toyUfoSequenceId | 0x10000, _toyUfoId,
kSeqSyncWait, 0, flyNodes[0]._gridX1 - 365, flyNodes[0]._gridY1 - 128);
for (i = 1; i < nodesCount; ++i) {
flyNodes[i]._sequenceId = seqId + (i % 8);
flyNodes[i]._id = i;
_gameSys->insertSequence(flyNodes[i]._sequenceId | 0x10000, flyNodes[i]._id,
flyNodes[i - 1]._sequenceId | 0x10000, flyNodes[i - 1]._id,
kSeqSyncWait, 0,
flyNodes[i]._gridX1 - 365, flyNodes[i]._gridY1 - 128);
}
_toyUfoSequenceId = flyNodes[nodesCount - 1]._sequenceId;
_toyUfoId = flyNodes[nodesCount - 1]._id;
if (animationIndex >= 0)
_gameSys->setAnimation(_toyUfoSequenceId | 0x10000, _toyUfoId, animationIndex);
}
}
void GnapEngine::playMidi(const char *name) {
if (_music)
return;
_music = new MusicPlayer(name);
_music->playSMF(true);
}
void GnapEngine::stopMidi() {
if (_music) {
_music->stop();
delete _music;
_music = nullptr;
}
}
} // End of namespace Gnap