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scummvm/engines/lab/engine.cpp
Filippos Karapetis f59ccf534c LAB: Get rid of the _doNotDrawMessage hack (from the original) 
This is actually a nasty hack in the original to avoid duplicate
messages, but it ended up hiding some game messages. This hack isn't
really necessary at all for game functionality, so it has been
removed, without any notable side-effects
2015-12-23 21:35:35 +01:00

1190 lines
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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 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 Labyrinth of Time code with assistance of
*
* Copyright (c) 1993 Terra Nova Development
* Copyright (c) 2004 The Wyrmkeep Entertainment Co.
*
*/
#include "lab/lab.h"
#include "lab/anim.h"
#include "lab/dispman.h"
#include "lab/eventman.h"
#include "lab/image.h"
#include "lab/intro.h"
#include "lab/labsets.h"
#include "lab/music.h"
#include "lab/processroom.h"
#include "lab/resource.h"
#include "lab/tilepuzzle.h"
#include "lab/utils.h"
namespace Lab {
// LAB: Labyrinth specific code for the special puzzles
#define SPECIALLOCK 100
#define SPECIALBRICK 101
#define SPECIALBRICKNOMOUSE 102
enum Items {
kItemHelmet = 1,
kItemBelt = 3,
kItemPithHelmet = 7,
kItemJournal = 9,
kItemNotes = 12,
kItemWestPaper = 18,
kItemWhiskey = 25,
kItemLamp = 27,
kItemMap = 28,
kItemQuarter = 30
};
#define kCondLampOn 151
#define kCondBeltGlowing 70
#define kCondUsedHelmet 184
enum Monitors {
kMonitorMuseum = 71,
kMonitorGramophone = 72,
kMonitorUnicycle = 73,
kMonitorStatue = 74,
kMonitorTalisman = 75,
kMonitorLute = 76,
kMonitorClock = 77,
kMonitorWindow = 78,
//kMonitorBelt = 79,
kMonitorLibrary = 80,
kMonitorTerminal = 81
//kMonitorLevers = 82
};
enum MainButtons {
kButtonPickup,
kButtonUse,
kButtonOpen,
kButtonClose,
kButtonLook,
kButtonInventory,
kButtonLeft,
kButtonForward,
kButtonRight,
kButtonMap
};
enum AltButtons {
kButtonMainDisplay,
kButtonSaveLoad,
kButtonUseItem,
kButtonLookAtItem,
kButtonPrevItem,
kButtonNextItem,
kButtonBreadCrumbs,
kButtonFollowCrumbs
};
static char initcolors[] = { '\x00', '\x00', '\x00', '\x30',
'\x30', '\x30', '\x10', '\x10',
'\x10', '\x14', '\x14', '\x14',
'\x20', '\x20', '\x20', '\x24',
'\x24', '\x24', '\x2c', '\x2c',
'\x2c', '\x08', '\x08', '\x08' };
uint16 LabEngine::getQuarters() {
return _inventory[kItemQuarter]._quantity;
}
void LabEngine::setQuarters(uint16 quarters) {
_inventory[kItemQuarter]._quantity = quarters;
}
void LabEngine::drawRoomMessage(uint16 curInv, CloseDataPtr closePtr) {
if (_lastTooLong) {
_lastTooLong = false;
return;
}
if (_alternate) {
if ((curInv <= _numInv) && _conditions->in(curInv) && !_inventory[curInv]._bitmapName.empty()) {
if ((curInv == kItemLamp) && _conditions->in(kCondLampOn))
// LAB: Labyrinth specific
drawStaticMessage(kTextkLampOn);
else if (_inventory[curInv]._quantity > 1) {
Common::String roomMessage = _inventory[curInv]._name + " (" + Common::String::format("%d", _inventory[curInv]._quantity) + ")";
_graphics->drawMessage(roomMessage.c_str());
} else
_graphics->drawMessage(_inventory[curInv]._name.c_str());
}
} else
drawDirection(closePtr);
_lastTooLong = _graphics->_lastMessageLong;
}
void LabEngine::freeScreens() {
for (uint16 i = 0; i < 20; i++) {
delete _moveImages[i];
_moveImages[i] = nullptr;
}
for (uint16 imgIdx = 0; imgIdx < 10; imgIdx++) {
delete _invImages[imgIdx];
_invImages[imgIdx] = nullptr;
}
}
void LabEngine::perFlipButton(uint16 buttonId) {
for (ButtonList::iterator button = _moveButtonList.begin(); button != _moveButtonList.end(); ++button) {
Button *topButton = *button;
if (topButton->_buttonId == buttonId) {
Image *tmpImage = topButton->_image;
topButton->_image = topButton->_altImage;
topButton->_altImage = tmpImage;
if (!_alternate) {
_event->mouseHide();
topButton->_image->drawImage(topButton->_x, topButton->_y);
_event->mouseShow();
}
break;
}
}
}
void LabEngine::eatMessages() {
IntuiMessage *msg;
do {
msg = _event->getMsg();
} while (msg && !g_engine->shouldQuit());
}
bool LabEngine::doCloseUp(CloseDataPtr closePtr) {
if (!closePtr)
return false;
int luteRight;
Common::Rect textRect;
if (getPlatform() != Common::kPlatformWindows) {
textRect.left = 0;
textRect.right = 319;
textRect.top = 0;
textRect.bottom = 165;
luteRight = 124;
} else {
textRect.left = 2;
textRect.right = 317;
textRect.top = 2;
textRect.bottom = 165;
luteRight = 128;
}
switch (closePtr->_closeUpType) {
case kMonitorMuseum:
case kMonitorLibrary:
case kMonitorWindow:
doMonitor(closePtr->_graphicName, closePtr->_message, false, textRect);
break;
case kMonitorGramophone:
textRect.right = 171;
doMonitor(closePtr->_graphicName, closePtr->_message, false, textRect);
break;
case kMonitorUnicycle:
textRect.left = 100;
doMonitor(closePtr->_graphicName, closePtr->_message, false, textRect);
break;
case kMonitorStatue:
textRect.left = 117;
doMonitor(closePtr->_graphicName, closePtr->_message, false, textRect);
break;
case kMonitorTalisman:
textRect.right = 184;
doMonitor(closePtr->_graphicName, closePtr->_message, false, textRect);
break;
case kMonitorLute:
textRect.right = luteRight;
doMonitor(closePtr->_graphicName, closePtr->_message, false, textRect);
break;
case kMonitorClock:
textRect.right = 206;
doMonitor(closePtr->_graphicName, closePtr->_message, false, textRect);
break;
case kMonitorTerminal:
doMonitor(closePtr->_graphicName, closePtr->_message, true, textRect);
break;
default:
return false;
}
_curFileName = " ";
_graphics->drawPanel();
return true;
}
Common::String LabEngine::getInvName(uint16 curInv) {
if (_mainDisplay)
return _inventory[curInv]._bitmapName;
if ((curInv == kItemLamp) && _conditions->in(kCondLampOn))
return "P:Mines/120";
if ((curInv == kItemBelt) && _conditions->in(kCondBeltGlowing))
return "P:Future/kCondBeltGlowing";
if (curInv == kItemWestPaper) {
_curFileName = _inventory[curInv]._bitmapName;
_anim->_noPalChange = true;
_graphics->readPict(_curFileName, false);
_anim->_noPalChange = false;
doWestPaper();
} else if (curInv == kItemNotes) {
_curFileName = _inventory[curInv]._bitmapName;
_anim->_noPalChange = true;
_graphics->readPict(_curFileName, false);
_anim->_noPalChange = false;
doNotes();
}
return _inventory[curInv]._bitmapName;
}
void LabEngine::interfaceOff() {
if (!_interfaceOff) {
_event->attachButtonList(nullptr);
_event->mouseHide();
_interfaceOff = true;
}
}
void LabEngine::interfaceOn() {
if (_interfaceOff) {
_interfaceOff = false;
_event->mouseShow();
}
if (_graphics->_longWinInFront)
_event->attachButtonList(nullptr);
else if (_alternate)
_event->attachButtonList(&_invButtonList);
else
_event->attachButtonList(&_moveButtonList);
}
bool LabEngine::doUse(uint16 curInv) {
switch (curInv) {
case kItemMap:
drawStaticMessage(kTextUseMap);
interfaceOff();
_anim->stopDiff();
_curFileName = " ";
_closeDataPtr = nullptr;
doMap(_roomNum);
_graphics->setPalette(initcolors, 8);
_graphics->drawMessage(nullptr);
_graphics->drawPanel();
return true;
case kItemJournal:
drawStaticMessage(kTextUseJournal);
interfaceOff();
_anim->stopDiff();
_curFileName = " ";
_closeDataPtr = nullptr;
doJournal();
_graphics->drawPanel();
_graphics->drawMessage(nullptr);
return true;
case kItemLamp:
interfaceOff();
if (_conditions->in(kCondLampOn)) {
drawStaticMessage(kTextTurnLampOff);
_conditions->exclElement(kCondLampOn);
} else {
drawStaticMessage(kTextTurnkLampOn);
_conditions->inclElement(kCondLampOn);
}
_anim->_doBlack = false;
_anim->_waitForEffect = true;
_graphics->readPict("Music:Click");
_anim->_waitForEffect = false;
_anim->_doBlack = false;
_nextFileName = getInvName(curInv);
return true;
case kItemBelt:
if (!_conditions->in(kCondBeltGlowing))
_conditions->inclElement(kCondBeltGlowing);
_anim->_doBlack = false;
_nextFileName = getInvName(curInv);
return true;
case kItemWhiskey:
_conditions->inclElement(kCondUsedHelmet);
drawStaticMessage(kTextUseWhiskey);
return true;
case kItemPithHelmet:
_conditions->inclElement(kCondUsedHelmet);
drawStaticMessage(kTextUsePith);
return true;
case kItemHelmet:
_conditions->inclElement(kCondUsedHelmet);
drawStaticMessage(kTextUseHelmet);
return true;
default:
return false;
}
}
void LabEngine::decIncInv(uint16 *curInv, bool decreaseFl) {
int8 step = (decreaseFl) ? -1 : 1;
uint newInv = *curInv + step;
// Handle wrapping
if (newInv < 1)
newInv = _numInv;
if (newInv > _numInv)
newInv = 1;
interfaceOff();
while (newInv && (newInv <= _numInv)) {
if (_conditions->in(newInv) && !_inventory[newInv]._bitmapName.empty()) {
_nextFileName = getInvName(newInv);
*curInv = newInv;
break;
}
newInv += step;
// Handle wrapping
if (newInv < 1)
newInv = _numInv;
if (newInv > _numInv)
newInv = 1;
}
}
void LabEngine::mainGameLoop() {
uint16 actionMode = 4;
uint16 curInv = kItemMap;
bool forceDraw = false;
bool gotMessage = true;
_graphics->setPalette(initcolors, 8);
_closeDataPtr = nullptr;
_roomNum = 1;
_direction = NORTH;
_resource->readRoomData("LAB:Doors");
if (!(_inventory = _resource->readInventory("LAB:Inventor")))
return;
if (!(_conditions = new LargeSet(_highestCondition + 1, this)))
return;
if (!(_roomsFound = new LargeSet(_manyRooms + 1, this)))
return;
_conditions->readInitialConditions("LAB:Conditio");
_graphics->_longWinInFront = false;
_graphics->drawPanel();
perFlipButton(actionMode);
// Set up initial picture.
while (1) {
_event->processInput();
g_system->delayMillis(10);
if (gotMessage) {
if (_quitLab || g_engine->shouldQuit()) {
_anim->stopDiff();
break;
}
_music->resumeBackMusic();
// Sees what kind of close up we're in and does the appropriate stuff, if any.
if (doCloseUp(_closeDataPtr)) {
_closeDataPtr = nullptr;
mayShowCrumbIndicator();
_graphics->screenUpdate();
}
// Sets the current picture properly on the screen
if (_mainDisplay)
_nextFileName = getPictName(&_closeDataPtr);
if (_noUpdateDiff) {
// Potentially entered another room
_roomsFound->inclElement(_roomNum);
forceDraw |= (_nextFileName != _curFileName);
_noUpdateDiff = false;
_curFileName = _nextFileName;
} else if (_nextFileName != _curFileName) {
interfaceOff();
// Potentially entered another room
_roomsFound->inclElement(_roomNum);
_curFileName = _nextFileName;
if (_closeDataPtr) {
switch (_closeDataPtr->_closeUpType) {
case SPECIALLOCK:
if (_mainDisplay)
_tilePuzzle->showCombination(_curFileName);
break;
case SPECIALBRICK:
case SPECIALBRICKNOMOUSE:
if (_mainDisplay)
_tilePuzzle->showTile(_curFileName, (_closeDataPtr->_closeUpType == SPECIALBRICKNOMOUSE));
break;
default:
_graphics->readPict(_curFileName, false);
break;
}
} else
_graphics->readPict(_curFileName, false);
drawRoomMessage(curInv, _closeDataPtr);
forceDraw = false;
mayShowCrumbIndicator();
_graphics->screenUpdate();
if (!_followingCrumbs)
eatMessages();
}
if (forceDraw) {
drawRoomMessage(curInv, _closeDataPtr);
forceDraw = false;
_graphics->screenUpdate();
}
}
// Make sure we check the music at least after every message
updateMusicAndEvents();
interfaceOn();
IntuiMessage *curMsg = _event->getMsg();
if (g_engine->shouldQuit()) {
_quitLab = true;
return;
}
if (!curMsg) {
// Does music load and next animation frame when you've run out of messages
gotMessage = false;
_music->checkRoomMusic();
updateMusicAndEvents();
_anim->diffNextFrame();
if (_followingCrumbs) {
int result = followCrumbs();
if (result != 0) {
uint16 code = 0;
switch (result) {
case VKEY_UPARROW:
code = kButtonForward;
break;
case VKEY_LTARROW:
code = kButtonLeft;
break;
case VKEY_RTARROW:
code = kButtonRight;
break;
default:
break;
}
gotMessage = true;
mayShowCrumbIndicator();
_graphics->screenUpdate();
if (!fromCrumbs(kMessageButtonUp, code, 0, _event->updateAndGetMousePos(), curInv, curMsg, forceDraw, code, actionMode))
break;
}
}
mayShowCrumbIndicator();
_graphics->screenUpdate();
} else {
gotMessage = true;
_followingCrumbs = false;
if (!fromCrumbs(curMsg->_msgClass, curMsg->_code, curMsg->_qualifier, curMsg->_mouse, curInv, curMsg, forceDraw, curMsg->_code, actionMode))
break;
}
}
}
void LabEngine::showLab2Teaser() {
_graphics->blackAllScreen();
_graphics->readPict("P:End/L2In.1");
for (uint16 i = 0; i < 120; i++) {
updateMusicAndEvents();
waitTOF();
}
_graphics->readPict("P:End/L2In.9");
_graphics->readPict("P:End/Lost");
while (!_event->getMsg() && !shouldQuit()) {
updateMusicAndEvents();
_anim->diffNextFrame();
waitTOF();
}
}
bool LabEngine::fromCrumbs(uint32 tmpClass, uint16 code, uint16 qualifier, Common::Point tmpPos,
uint16 &curInv, IntuiMessage *curMsg, bool &forceDraw, uint16 buttonId, uint16 &actionMode) {
uint32 msgClass = tmpClass;
Common::Point curPos = tmpPos;
uint16 oldDirection = 0;
uint16 lastInv = kItemMap;
CloseDataPtr wrkClosePtr = nullptr;
bool leftButtonClick = false;
bool rightButtonClick = false;
_anim->_doBlack = false;
if (g_engine->shouldQuit())
return false;
if ((msgClass == kMessageRawKey) && !_graphics->_longWinInFront) {
if (!processKey(curMsg, msgClass, qualifier, curPos, curInv, forceDraw, code))
return false;
}
leftButtonClick = (msgClass == kMessageLeftClick);
rightButtonClick = (msgClass == kMessageRightClick);
if (_graphics->_longWinInFront) {
if ((msgClass == kMessageRawKey) || (leftButtonClick || rightButtonClick)) {
_graphics->_longWinInFront = false;
_graphics->drawPanel();
drawRoomMessage(curInv, _closeDataPtr);
_graphics->screenUpdate();
}
} else if ((msgClass == kMessageButtonUp) && !_alternate) {
processMainButton(curInv, lastInv, oldDirection, forceDraw, buttonId, actionMode);
} else if ((msgClass == kMessageButtonUp) && _alternate) {
processAltButton(curInv, lastInv, buttonId, actionMode);
} else if (leftButtonClick && _mainDisplay) {
interfaceOff();
_mainDisplay = true;
if (_closeDataPtr) {
switch (_closeDataPtr->_closeUpType) {
case SPECIALLOCK:
if (_mainDisplay)
_tilePuzzle->mouseCombination(curPos);
break;
case SPECIALBRICK:
if (_mainDisplay)
_tilePuzzle->mouseTile(curPos);
break;
default:
performAction(actionMode, curPos, curInv);
break;
}
} else
performAction(actionMode, curPos, curInv);
mayShowCrumbIndicator();
_graphics->screenUpdate();
} else if (rightButtonClick) {
eatMessages();
_alternate = !_alternate;
_anim->_doBlack = true;
_mainDisplay = true;
// Sets the correct button list
interfaceOn();
if (_alternate) {
if (lastInv && _conditions->in(lastInv))
curInv = lastInv;
else
decIncInv(&curInv, false);
}
_graphics->drawPanel();
drawRoomMessage(curInv, _closeDataPtr);
mayShowCrumbIndicator();
_graphics->screenUpdate();
} else if (msgClass == kMessageDeltaMove) {
ViewData *vptr = getViewData(_roomNum, _direction);
CloseDataPtr oldClosePtr = vptr->_closeUps;
CloseDataPtr tmpClosePtr = _closeDataPtr;
setCurrentClose(curPos, &tmpClosePtr, true);
if (!tmpClosePtr || (tmpClosePtr == _closeDataPtr)) {
if (!_closeDataPtr)
wrkClosePtr = oldClosePtr;
else
wrkClosePtr = _closeDataPtr->_subCloseUps;
} else
wrkClosePtr = tmpClosePtr->_nextCloseUp;
if (!wrkClosePtr) {
if (!_closeDataPtr)
wrkClosePtr = oldClosePtr;
else
wrkClosePtr = _closeDataPtr->_subCloseUps;
}
if (wrkClosePtr)
_event->setMousePos(Common::Point(_utils->scaleX((wrkClosePtr->_x1 + wrkClosePtr->_x2) / 2), _utils->scaleY((wrkClosePtr->_y1 + wrkClosePtr->_y2) / 2)));
}
return true;
}
bool LabEngine::processKey(IntuiMessage *curMsg, uint32 &msgClass, uint16 &qualifier, Common::Point &curPos, uint16 &curInv, bool &forceDraw, uint16 code) {
if (code == Common::KEYCODE_RETURN) {
// The return key
msgClass = kMessageLeftClick;
qualifier = 0;
curPos = _event->getMousePos();
} else if ((getPlatform() == Common::kPlatformWindows) && (code == Common::KEYCODE_b)) {
// Start bread crumbs
_breadCrumbs[0]._roomNum = 0;
_numCrumbs = 0;
_droppingCrumbs = true;
mayShowCrumbIndicator();
_graphics->screenUpdate();
} else if ((code == Common::KEYCODE_f) || (code == Common::KEYCODE_r)) {
// Follow bread crumbs
if (_droppingCrumbs) {
if (_numCrumbs > 0) {
_followingCrumbs = true;
_followCrumbsFast = (code == Common::KEYCODE_r);
_isCrumbTurning = false;
_isCrumbWaiting = false;
_crumbTimestamp = g_system->getMillis();
if (_alternate) {
eatMessages();
_alternate = false;
_anim->_doBlack = true;
_mainDisplay = true;
// Sets the correct button list
interfaceOn();
_graphics->drawPanel();
drawRoomMessage(curInv, _closeDataPtr);
_graphics->screenUpdate();
}
} else {
_breadCrumbs[0]._roomNum = 0;
_droppingCrumbs = false;
// Need to hide indicator!!!!
mayShowCrumbIndicatorOff();
_graphics->screenUpdate();
}
}
} else if ((code == Common::KEYCODE_x) || (code == Common::KEYCODE_q)) {
// Quit?
_graphics->drawMessage("Do you want to quit? (Y/N)");
eatMessages();
interfaceOff();
while (1) {
// Make sure we check the music at least after every message
updateMusicAndEvents();
curMsg = _event->getMsg();
if (g_engine->shouldQuit())
return false;
if (!curMsg) {
// Does music load and next animation frame when you've run out of messages
updateMusicAndEvents();
_anim->diffNextFrame();
} else if (curMsg->_msgClass == kMessageRawKey) {
if ((curMsg->_code == Common::KEYCODE_y) || (curMsg->_code == Common::KEYCODE_q)) {
_anim->stopDiff();
return false;
} else if (curMsg->_code < 128)
break;
} else if ((curMsg->_msgClass == kMessageLeftClick) || (curMsg->_msgClass == kMessageRightClick))
break;
}
forceDraw = true;
interfaceOn();
} else if (code == Common::KEYCODE_TAB)
msgClass = kMessageDeltaMove;
else if (code == Common::KEYCODE_ESCAPE)
_closeDataPtr = nullptr;
eatMessages();
return true;
}
void LabEngine::processMainButton(uint16 &curInv, uint16 &lastInv, uint16 &oldDirection, bool &forceDraw, uint16 buttonId, uint16 &actionMode) {
uint16 newDir;
uint16 oldRoomNum;
switch (buttonId) {
case kButtonPickup:
case kButtonUse:
case kButtonOpen:
case kButtonClose:
case kButtonLook:
if ((actionMode == 4) && (buttonId == kButtonLook) && _closeDataPtr) {
doMainView(&_closeDataPtr);
_anim->_doBlack = true;
_closeDataPtr = nullptr;
mayShowCrumbIndicator();
} else {
uint16 oldActionMode = actionMode;
actionMode = buttonId;
if (oldActionMode < 5)
perFlipButton(oldActionMode);
perFlipButton(actionMode);
drawStaticMessage(kTextTakeWhat + buttonId);
}
break;
case kButtonInventory:
eatMessages();
_alternate = true;
_anim->_doBlack = true;
// Sets the correct button list
interfaceOn();
_mainDisplay = false;
if (lastInv && _conditions->in(lastInv)) {
curInv = lastInv;
_nextFileName = getInvName(curInv);
} else
decIncInv(&curInv, false);
_graphics->drawPanel();
drawRoomMessage(curInv, _closeDataPtr);
mayShowCrumbIndicator();
break;
case kButtonLeft:
case kButtonRight:
_closeDataPtr = nullptr;
if (buttonId == kButtonLeft)
drawStaticMessage(kTextTurnLeft);
else
drawStaticMessage(kTextTurnRight);
_curFileName = " ";
oldDirection = _direction;
newDir = processArrow(_direction, buttonId - 6);
doTurn(_direction, newDir, &_closeDataPtr);
_anim->_doBlack = true;
_direction = newDir;
forceDraw = true;
mayShowCrumbIndicator();
break;
case kButtonForward:
_closeDataPtr = nullptr;
oldRoomNum = _roomNum;
if (doGoForward(&_closeDataPtr)) {
if (oldRoomNum == _roomNum)
_anim->_doBlack = true;
} else {
_anim->_doBlack = true;
_direction = processArrow(_direction, buttonId - 6);
if (oldRoomNum != _roomNum) {
drawStaticMessage(kTextGoForward);
// Potentially entered a new room
_roomsFound->inclElement(_roomNum);
_curFileName = " ";
forceDraw = true;
} else {
_anim->_doBlack = true;
drawStaticMessage(kTextNoPath);
}
}
if (_followingCrumbs) {
if (_isCrumbTurning) {
if (_direction == oldDirection)
_followingCrumbs = false;
} else if (_roomNum == oldRoomNum) { // didn't get there?
_followingCrumbs = false;
}
} else if (_droppingCrumbs && (oldRoomNum != _roomNum)) {
// If in surreal maze, turn off DroppingCrumbs.
if ((_roomNum >= 245) && (_roomNum <= 280)) {
_followingCrumbs = false;
_droppingCrumbs = false;
_numCrumbs = 0;
_breadCrumbs[0]._roomNum = 0;
} else {
bool intersect = false;
for (int idx = 0; idx < _numCrumbs; idx++) {
if (_breadCrumbs[idx]._roomNum == _roomNum) {
_numCrumbs = idx + 1;
_breadCrumbs[_numCrumbs]._roomNum = 0;
intersect = true;
}
}
if (!intersect) {
if (_numCrumbs == MAX_CRUMBS) {
_numCrumbs = MAX_CRUMBS - 1;
memcpy(&_breadCrumbs[0], &_breadCrumbs[1], _numCrumbs * sizeof _breadCrumbs[0]);
}
_breadCrumbs[_numCrumbs]._roomNum = _roomNum;
_breadCrumbs[_numCrumbs++]._direction = _direction;
}
}
}
mayShowCrumbIndicator();
break;
case kButtonMap:
doUse(kItemMap);
mayShowCrumbIndicator();
break;
}
_graphics->screenUpdate();
}
void LabEngine::processAltButton(uint16 &curInv, uint16 &lastInv, uint16 buttonId, uint16 &actionMode) {
bool doit;
_anim->_doBlack = true;
switch (buttonId) {
case kButtonMainDisplay:
eatMessages();
_alternate = false;
_anim->_doBlack = true;
_mainDisplay = true;
// Sets the correct button list
interfaceOn();
_graphics->drawPanel();
drawRoomMessage(curInv, _closeDataPtr);
break;
case kButtonSaveLoad:
interfaceOff();
_anim->stopDiff();
_curFileName = " ";
doit = !saveRestoreGame();
_closeDataPtr = nullptr;
_mainDisplay = true;
curInv = lastInv = kItemMap;
_nextFileName = getInvName(curInv);
_graphics->drawPanel();
if (doit) {
_graphics->drawMessage("Disk operation failed.");
_graphics->setPalette(initcolors, 8);
g_system->delayMillis(1000);
}
break;
case kButtonUseItem:
if (!doUse(curInv)) {
uint16 oldActionMode = actionMode;
// Use button
actionMode = 5;
if (oldActionMode < 5)
perFlipButton(oldActionMode);
drawStaticMessage(kTextUseOnWhat);
_mainDisplay = true;
}
break;
case kButtonLookAtItem:
_mainDisplay = !_mainDisplay;
if ((curInv == 0) || (curInv > _numInv)) {
curInv = 1;
while ((curInv <= _numInv) && !_conditions->in(curInv))
curInv++;
}
if ((curInv <= _numInv) && _conditions->in(curInv) && !_inventory[curInv]._bitmapName.empty())
_nextFileName = getInvName(curInv);
break;
case kButtonPrevItem:
decIncInv(&curInv, true);
lastInv = curInv;
drawRoomMessage(curInv, _closeDataPtr);
break;
case kButtonNextItem:
decIncInv(&curInv, false);
lastInv = curInv;
drawRoomMessage(curInv, _closeDataPtr);
break;
case kButtonBreadCrumbs:
_breadCrumbs[0]._roomNum = 0;
_numCrumbs = 0;
_droppingCrumbs = true;
mayShowCrumbIndicator();
break;
case kButtonFollowCrumbs:
if (_droppingCrumbs) {
if (_numCrumbs > 0) {
_followingCrumbs = true;
_followCrumbsFast = false;
_isCrumbTurning = false;
_isCrumbWaiting = false;
_crumbTimestamp = g_system->getMillis();
eatMessages();
_alternate = false;
_anim->_doBlack = true;
_mainDisplay = true;
// Sets the correct button list
interfaceOn();
_graphics->drawPanel();
drawRoomMessage(curInv, _closeDataPtr);
} else {
_breadCrumbs[0]._roomNum = 0;
_droppingCrumbs = false;
// Need to hide indicator!!!!
mayShowCrumbIndicatorOff();
}
}
break;
}
_graphics->screenUpdate();
}
void LabEngine::performAction(uint16 actionMode, Common::Point curPos, uint16 &curInv) {
eatMessages();
switch (actionMode) {
case 0:
// Take something.
if (doActionRule(curPos, actionMode, _roomNum, &_closeDataPtr))
_curFileName = _newFileName;
else if (takeItem(curPos, &_closeDataPtr))
drawStaticMessage(kTextTakeItem);
else if (doActionRule(curPos, TAKEDEF - 1, _roomNum, &_closeDataPtr))
_curFileName = _newFileName;
else if (doActionRule(curPos, TAKE - 1, 0, &_closeDataPtr))
_curFileName = _newFileName;
else if (curPos.y < (_utils->vgaScaleY(149) + _utils->svgaCord(2)))
drawStaticMessage(kTextNothing);
break;
case 1:
case 2:
case 3:
// Manipulate an object, Open up a "door" or Close a "door"
if (doActionRule(curPos, actionMode, _roomNum, &_closeDataPtr))
_curFileName = _newFileName;
else if (!doActionRule(curPos, actionMode, 0, &_closeDataPtr)) {
if (curPos.y < (_utils->vgaScaleY(149) + _utils->svgaCord(2)))
drawStaticMessage(kTextNothing);
}
break;
case 4: {
// Look at closeups
CloseDataPtr tmpClosePtr = _closeDataPtr;
setCurrentClose(curPos, &tmpClosePtr, true);
if (_closeDataPtr == tmpClosePtr) {
if (curPos.y < (_utils->vgaScaleY(149) + _utils->svgaCord(2)))
drawStaticMessage(kTextNothing);
} else if (!tmpClosePtr->_graphicName.empty()) {
_anim->_doBlack = true;
_closeDataPtr = tmpClosePtr;
} else if (curPos.y < (_utils->vgaScaleY(149) + _utils->svgaCord(2)))
drawStaticMessage(kTextNothing);
}
break;
case 5:
if (_conditions->in(curInv)) {
// Use an item on something else
if (doOperateRule(curPos, curInv, &_closeDataPtr)) {
_curFileName = _newFileName;
if (!_conditions->in(curInv))
decIncInv(&curInv, false);
}
else if (curPos.y < (_utils->vgaScaleY(149) + _utils->svgaCord(2)))
drawStaticMessage(kTextNothing);
}
}
}
void LabEngine::go() {
_isHiRes = ((getFeatures() & GF_LOWRES) == 0);
_graphics->setUpScreens();
_event->initMouse();
if (_msgFont)
_graphics->closeFont(&_msgFont);
if (getPlatform() != Common::kPlatformAmiga)
_msgFont = _resource->getFont("F:AvanteG.12");
else
_msgFont = _resource->getFont("F:Map.fon");
_event->mouseHide();
Intro *intro = new Intro(this);
intro->introSequence();
delete intro;
_event->mouseShow();
mainGameLoop();
_graphics->closeFont(&_msgFont);
_graphics->freePict();
freeScreens();
_music->freeMusic();
}
int LabEngine::followCrumbs() {
// NORTH, SOUTH, EAST, WEST
int movement[4][4] = {
{ VKEY_UPARROW, VKEY_RTARROW, VKEY_RTARROW, VKEY_LTARROW },
{ VKEY_RTARROW, VKEY_UPARROW, VKEY_LTARROW, VKEY_RTARROW },
{ VKEY_LTARROW, VKEY_RTARROW, VKEY_UPARROW, VKEY_RTARROW },
{ VKEY_RTARROW, VKEY_LTARROW, VKEY_RTARROW, VKEY_UPARROW }
};
if (_isCrumbWaiting) {
if (g_system->getMillis() <= _crumbTimestamp)
return 0;
_isCrumbWaiting = false;
}
if (!_isCrumbTurning)
_breadCrumbs[_numCrumbs--]._roomNum = 0;
// Is the current crumb this room? If not, logic error.
if (_roomNum != _breadCrumbs[_numCrumbs]._roomNum) {
_numCrumbs = 0;
_breadCrumbs[0]._roomNum = 0;
_droppingCrumbs = false;
_followingCrumbs = false;
return 0;
}
int exitDir;
// which direction is last crumb
if (_breadCrumbs[_numCrumbs]._direction == EAST)
exitDir = WEST;
else if (_breadCrumbs[_numCrumbs]._direction == WEST)
exitDir = EAST;
else if (_breadCrumbs[_numCrumbs]._direction == NORTH)
exitDir = SOUTH;
else
exitDir = NORTH;
int moveDir = movement[_direction][exitDir];
if (_numCrumbs == 0) {
_isCrumbTurning = false;
_breadCrumbs[0]._roomNum = 0;
_droppingCrumbs = false;
_followingCrumbs = false;
} else {
_isCrumbTurning = (moveDir != VKEY_UPARROW);
_isCrumbWaiting = true;
int theDelay = (_followCrumbsFast ? 1000 / 4 : 1000);
_crumbTimestamp = theDelay + g_system->getMillis();
}
return moveDir;
}
void LabEngine::mayShowCrumbIndicator() {
static Image dropCrumbsImage(24, 24, nullptr, this);
if (getPlatform() != Common::kPlatformWindows)
return;
if (_droppingCrumbs && _mainDisplay) {
_event->mouseHide();
dropCrumbsImage.drawMaskImage(612, 4);
_event->mouseShow();
}
}
void LabEngine::mayShowCrumbIndicatorOff() {
static Image dropCrumbsOffImage(24, 24, nullptr, this);
if (getPlatform() != Common::kPlatformWindows)
return;
if (_mainDisplay) {
_event->mouseHide();
dropCrumbsOffImage.drawMaskImage(612, 4);
_event->mouseShow();
}
}
} // End of namespace Lab
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