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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 "gui/message.h"
#include "lab/lab.h"
#include "lab/anim.h"
#include "lab/dispman.h"
#include "lab/labsets.h"
#include "lab/music.h"
#include "lab/processroom.h"
#include "lab/resource.h"
#include "lab/utils.h"
namespace Lab {
#define NOFILE "no file"
/**
* Checks whether all the conditions in a condition list are met.
*/
bool LabEngine::checkConditions(int16 *condition) {
if (!condition)
return true;
if (condition[0] == 0)
return true;
int counter = 1;
bool res = _conditions->in(condition[0]);
while (condition[counter] && res) {
res = _conditions->in(condition[counter]);
counter++;
}
return res;
}
/**
* Gets the current ViewDataPointer.
*/
ViewData *LabEngine::getViewData(uint16 roomNum, uint16 direction) {
if (!_rooms[roomNum]._roomMsg)
_resource->readViews(roomNum);
ViewData *view = _rooms[roomNum]._view[direction];
do {
if (checkConditions(view->_condition))
break;
view = view->_nextCondition;
} while (true);
return view;
}
/**
* Gets an object, if any, from the user's click on the screen.
*/
CloseData *LabEngine::getObject(Common::Point pos, CloseDataPtr closePtr) {
CloseDataPtr wrkClosePtr;
if (!closePtr)
wrkClosePtr = getViewData(_roomNum, _direction)->_closeUps;
else
wrkClosePtr = closePtr->_subCloseUps;
while (wrkClosePtr) {
if ((pos.x >= _utils->scaleX(wrkClosePtr->_x1)) && (pos.y >= _utils->scaleY(wrkClosePtr->_y1)) &&
(pos.x <= _utils->scaleX(wrkClosePtr->_x2)) && (pos.y <= _utils->scaleY(wrkClosePtr->_y2)))
return wrkClosePtr;
wrkClosePtr = wrkClosePtr->_nextCloseUp;
}
return nullptr;
}
/**
* Goes through the list of closeups to find a match.
* NYI: Known bug here. If there are two objects that have closeups, and
* some of the closeups have the same hit boxes, then this returns the
* first occurrence of the object with the same hit box.
*/
CloseDataPtr LabEngine::findClosePtrMatch(CloseDataPtr closePtr, CloseDataPtr closePtrList) {
CloseDataPtr resClosePtr;
while (closePtrList) {
if ((closePtr->_x1 == closePtrList->_x1) && (closePtr->_x2 == closePtrList->_x2) &&
(closePtr->_y1 == closePtrList->_y1) && (closePtr->_y2 == closePtrList->_y2) &&
(closePtr->_depth == closePtrList->_depth))
return closePtrList;
resClosePtr = findClosePtrMatch(closePtr, closePtrList->_subCloseUps);
if (resClosePtr)
return resClosePtr;
else
closePtrList = closePtrList->_nextCloseUp;
}
return nullptr;
}
/**
* Returns the current picture name.
*/
char *LabEngine::getPictName(CloseDataPtr *closePtrList) {
ViewData *viewPtr = getViewData(_roomNum, _direction);
if (*closePtrList) {
*closePtrList = findClosePtrMatch(*closePtrList, viewPtr->_closeUps);
if (*closePtrList)
return (*closePtrList)->_graphicName;
}
return viewPtr->_graphicName;
}
/**
* Draws the current direction to the screen.
*/
void LabEngine::drawDirection(CloseDataPtr closePtr) {
if (closePtr && closePtr->_message) {
_graphics->drawMessage(closePtr->_message);
return;
}
Common::String message;
if (_rooms[_roomNum]._roomMsg) {
message += _rooms[_roomNum]._roomMsg;
message += ", ";
}
if (_direction == NORTH)
message += _resource->getStaticText(kTextFacingNorth);
else if (_direction == EAST)
message += _resource->getStaticText(kTextFacingEast);
else if (_direction == SOUTH)
message += _resource->getStaticText(kTextFacingSouth);
else if (_direction == WEST)
message += _resource->getStaticText(kTextFacingWest);
_graphics->drawMessage(message.c_str());
}
/**
* process a arrow gadget movement.
*/
uint16 LabEngine::processArrow(uint16 curDirection, uint16 arrow) {
if (arrow == 1) { // Forward
uint16 room = 1;
if (curDirection == NORTH)
room = _rooms[_roomNum]._northDoor;
else if (curDirection == SOUTH)
room = _rooms[_roomNum]._southDoor;
else if (curDirection == EAST)
room = _rooms[_roomNum]._eastDoor;
else if (curDirection == WEST)
room = _rooms[_roomNum]._westDoor;
if (room != 0)
_roomNum = room;
return curDirection;
} else if (arrow == 0) { // Left
if (curDirection == NORTH)
return WEST;
else if (curDirection == WEST)
return SOUTH;
else if (curDirection == SOUTH)
return EAST;
else
return NORTH;
} else if (arrow == 2) { // Right
if (curDirection == NORTH)
return EAST;
else if (curDirection == EAST)
return SOUTH;
else if (curDirection == SOUTH)
return WEST;
else
return NORTH;
}
// Should never reach here!
return curDirection;
}
/**
* Sets the current close up data.
*/
void LabEngine::setCurrentClose(Common::Point pos, CloseDataPtr *closePtrList, bool useAbsoluteCoords) {
CloseDataPtr closePtr;
if (!*closePtrList)
closePtr = getViewData(_roomNum, _direction)->_closeUps;
else
closePtr = (*closePtrList)->_subCloseUps;
Common::Rect target;
while (closePtr) {
if (!useAbsoluteCoords)
target = Common::Rect(closePtr->_x1, closePtr->_y1, closePtr->_x2, closePtr->_y2);
else
target = Common::Rect(_utils->scaleX(closePtr->_x1), _utils->scaleY(closePtr->_y1), _utils->scaleX(closePtr->_x2), _utils->scaleY(closePtr->_y2));
if (target.contains(pos) && closePtr->_graphicName) {
*closePtrList = closePtr;
return;
}
closePtr = closePtr->_nextCloseUp;
}
}
/**
* Takes the currently selected item.
*/
bool LabEngine::takeItem(uint16 x, uint16 y, CloseDataPtr *closePtrList) {
CloseDataPtr closePtr;
if (!*closePtrList) {
closePtr = getViewData(_roomNum, _direction)->_closeUps;
} else if ((*closePtrList)->_closeUpType < 0) {
_conditions->inclElement(abs((*closePtrList)->_closeUpType));
return true;
} else
closePtr = (*closePtrList)->_subCloseUps;
while (closePtr) {
if ((x >= _utils->scaleX(closePtr->_x1)) && (y >= _utils->scaleY(closePtr->_y1)) &&
(x <= _utils->scaleX(closePtr->_x2)) && (y <= _utils->scaleY(closePtr->_y2)) &&
(closePtr->_closeUpType < 0)) {
_conditions->inclElement(abs(closePtr->_closeUpType));
return true;
}
closePtr = closePtr->_nextCloseUp;
}
return false;
}
/**
* Processes the action list.
*/
void LabEngine::doActions(Action *actionList, CloseDataPtr *closePtrList) {
while (actionList) {
_music->updateMusic();
switch (actionList->_actionType) {
case PLAYSOUND:
_music->_loopSoundEffect = false;
_music->_waitTillFinished = true;
_music->readMusic((char *)actionList->_data, true);
_music->_waitTillFinished = false;
break;
case PLAYSOUNDB:
_music->_loopSoundEffect = false;
_music->_waitTillFinished = false;
_music->readMusic((char *)actionList->_data, false);
break;
case PLAYSOUNDCONT:
_music->_doNotFilestopSoundEffect = true;
_music->_loopSoundEffect = true;
_music->readMusic((char *)actionList->_data, _music->_waitTillFinished);
break;
case SHOWDIFF:
_graphics->readPict((char *)actionList->_data, true);
break;
case SHOWDIFFCONT:
_graphics->readPict((char *)actionList->_data, false);
break;
case LOADDIFF:
if (actionList->_data)
// Puts a file into memory
_graphics->loadPict((char *)actionList->_data);
break;
case TRANSITION:
_graphics->doTransition((TransitionType)actionList->_param1, closePtrList, (char *)actionList->_data);
break;
case NOUPDATE:
_noUpdateDiff = true;
_anim->_doBlack = false;
break;
case FORCEUPDATE:
_curFileName = " ";
break;
case SHOWCURPICT: {
char *test = getPictName(closePtrList);
if (strcmp(test, _curFileName) != 0) {
_curFileName = test;
_graphics->readPict(_curFileName, true);
}
}
break;
case SETELEMENT:
_conditions->inclElement(actionList->_param1);
break;
case UNSETELEMENT:
_conditions->exclElement(actionList->_param1);
break;
case SHOWMESSAGE:
_graphics->_doNotDrawMessage = false;
if (_graphics->_longWinInFront)
_graphics->longDrawMessage((char *)actionList->_data);
else
_graphics->drawMessage((char *)actionList->_data);
_graphics->_doNotDrawMessage = true;
break;
case CSHOWMESSAGE:
if (!*closePtrList) {
_graphics->_doNotDrawMessage = false;
_graphics->drawMessage((char *)actionList->_data);
_graphics->_doNotDrawMessage = true;
}
break;
case SHOWMESSAGES: {
char **str = (char **)actionList->_data;
_graphics->_doNotDrawMessage = false;
_graphics->drawMessage(str[_rnd.getRandomNumber(actionList->_param1)]);
_graphics->_doNotDrawMessage = true;
}
break;
case SETPOSITION:
if (actionList->_param1 & 0x8000) {
// This is a Wyrmkeep Windows trial version, thus stop at this
// point, since we can't check for game payment status
_graphics->readPict(getPictName(closePtrList), true);
actionList = nullptr;
GUI::MessageDialog trialMessage("This is the end of the trial version. You can play the full game using the original interpreter from Wyrmkeep");
trialMessage.runModal();
continue;
}
_roomNum = actionList->_param1;
_direction = actionList->_param2 - 1;
*closePtrList = nullptr;
_anim->_doBlack = true;
break;
case SETCLOSEUP: {
Common::Point curPos = Common::Point(_utils->scaleX(actionList->_param1), _utils->scaleY(actionList->_param2));
CloseDataPtr tmpClosePtr = getObject(curPos, *closePtrList);
if (tmpClosePtr)
*closePtrList = tmpClosePtr;
}
break;
case MAINVIEW:
*closePtrList = nullptr;
break;
case SUBINV:
if (_inventory[actionList->_param1]._many)
(_inventory[actionList->_param1]._many)--;
if (_inventory[actionList->_param1]._many == 0)
_conditions->exclElement(actionList->_param1);
break;
case ADDINV:
(_inventory[actionList->_param1]._many) += actionList->_param2;
_conditions->inclElement(actionList->_param1);
break;
case SHOWDIR:
_graphics->_doNotDrawMessage = false;
break;
case WAITSECS: {
uint32 targetMillis = g_system->getMillis() + actionList->_param1 * 1000;
_graphics->screenUpdate();
while (g_system->getMillis() < targetMillis) {
_music->updateMusic();
_anim->diffNextFrame();
}
}
break;
case STOPMUSIC:
_music->setMusic(false);
break;
case STARTMUSIC:
_music->setMusic(true);
break;
case CHANGEMUSIC:
_music->changeMusic((const char *)actionList->_data);
_music->setMusicReset(false);
break;
case RESETMUSIC:
_music->resetMusic();
_music->setMusicReset(true);
break;
case FILLMUSIC:
_music->updateMusic();
break;
case WAITSOUND:
while (_music->isSoundEffectActive()) {
_music->updateMusic();
_anim->diffNextFrame();
waitTOF();
}
break;
case CLEARSOUND:
if (_music->_loopSoundEffect) {
_music->_loopSoundEffect = false;
_music->stopSoundEffect();
} else if (_music->isSoundEffectActive())
_music->stopSoundEffect();
break;
case WINMUSIC:
_music->_winmusic = true;
_music->freeMusic();
_music->initMusic();
break;
case WINGAME:
_quitLab = true;
break;
case LOSTGAME:
_quitLab = true;
break;
case RESETBUFFER:
_graphics->freePict();
break;
case SPECIALCMD:
if (actionList->_param1 == 0)
_anim->_doBlack = true;
else if (actionList->_param1 == 1)
_anim->_doBlack = (_closeDataPtr == nullptr);
else if (actionList->_param1 == 2)
_anim->_doBlack = (_closeDataPtr != nullptr);
else if (actionList->_param1 == 5) {
// inverse the palette
for (uint16 idx = (8 * 3); idx < (255 * 3); idx++)
_anim->_diffPalette[idx] = 255 - _anim->_diffPalette[idx];
waitTOF();
_graphics->setPalette(_anim->_diffPalette, 256);
waitTOF();
waitTOF();
} else if (actionList->_param1 == 4) {
// white the palette
_graphics->whiteScreen();
waitTOF();
waitTOF();
} else if (actionList->_param1 == 6) {
// Restore the palette
waitTOF();
_graphics->setPalette(_anim->_diffPalette, 256);
waitTOF();
waitTOF();
} else if (actionList->_param1 == 7) {
// Quick pause
waitTOF();
waitTOF();
waitTOF();
}
break;
}
actionList = actionList->_nextAction;
}
if (_music->_loopSoundEffect) {
_music->_loopSoundEffect = false;
_music->stopSoundEffect();
} else {
while (_music->isSoundEffectActive()) {
_music->updateMusic();
_anim->diffNextFrame();
waitTOF();
}
}
_music->_doNotFilestopSoundEffect = false;
}
/**
* Does the work for doActionRule.
*/
bool LabEngine::doActionRuleSub(int16 action, int16 roomNum, CloseDataPtr closePtr, CloseDataPtr *setCloseList, bool allowDefaults) {
action++;
if (closePtr) {
RuleList *rules = _rooms[_roomNum]._rules;
if (!rules && (roomNum == 0)) {
_resource->readViews(roomNum);
rules = _rooms[roomNum]._rules;
}
for (RuleList::iterator rule = rules->begin(); rule != rules->end(); ++rule) {
if (((*rule)->_ruleType == ACTION) &&
(((*rule)->_param1 == action) || (((*rule)->_param1 == 0) && allowDefaults))) {
if ((((*rule)->_param2 == closePtr->_closeUpType) ||
(((*rule)->_param2 == 0) && allowDefaults)) ||
((action == 1) && ((*rule)->_param2 == (-closePtr->_closeUpType)))) {
if (checkConditions((*rule)->_condition)) {
doActions((*rule)->_actionList, setCloseList);
return true;
}
}
}
}
}
return false;
}
/**
* Goes through the rules if an action is taken.
*/
bool LabEngine::doActionRule(Common::Point pos, int16 action, int16 roomNum, CloseDataPtr *closePtrList) {
if (roomNum)
_newFileName = NOFILE;
else
_newFileName = _curFileName;
CloseDataPtr curClosePtr = getObject(pos, *closePtrList);
if (doActionRuleSub(action, roomNum, curClosePtr, closePtrList, false))
return true;
else if (doActionRuleSub(action, roomNum, *closePtrList, closePtrList, false))
return true;
else if (doActionRuleSub(action, roomNum, curClosePtr, closePtrList, true))
return true;
else if (doActionRuleSub(action, roomNum, *closePtrList, closePtrList, true))
return true;
return false;
}
/**
* Does the work for doActionRule.
*/
bool LabEngine::doOperateRuleSub(int16 itemNum, int16 roomNum, CloseDataPtr closePtr, CloseDataPtr *setCloseList, bool allowDefaults) {
if (closePtr)
if (closePtr->_closeUpType > 0) {
RuleList *rules = _rooms[roomNum]._rules;
if (!rules && (roomNum == 0)) {
_resource->readViews(roomNum);
rules = _rooms[roomNum]._rules;
}
for (RuleList::iterator rule = rules->begin(); rule != rules->end(); ++rule) {
if (((*rule)->_ruleType == OPERATE) &&
(((*rule)->_param1 == itemNum) || (((*rule)->_param1 == 0) && allowDefaults)) &&
(((*rule)->_param2 == closePtr->_closeUpType) || (((*rule)->_param2 == 0) && allowDefaults))) {
if (checkConditions((*rule)->_condition)) {
doActions((*rule)->_actionList, setCloseList);
return true;
}
}
}
}
return false;
}
/**
* Goes through the rules if the user tries to operate an item on an object.
*/
bool LabEngine::doOperateRule(Common::Point pos, int16 ItemNum, CloseDataPtr *closePtrList) {
_newFileName = NOFILE;
CloseDataPtr closePtr = getObject(pos, *closePtrList);
if (doOperateRuleSub(ItemNum, _roomNum, closePtr, closePtrList, false))
return true;
else if (doOperateRuleSub(ItemNum, _roomNum, *closePtrList, closePtrList, false))
return true;
else if (doOperateRuleSub(ItemNum, _roomNum, closePtr, closePtrList, true))
return true;
else if (doOperateRuleSub(ItemNum, _roomNum, *closePtrList, closePtrList, true))
return true;
else {
_newFileName = _curFileName;
if (doOperateRuleSub(ItemNum, 0, closePtr, closePtrList, false))
return true;
else if (doOperateRuleSub(ItemNum, 0, *closePtrList, closePtrList, false))
return true;
else if (doOperateRuleSub(ItemNum, 0, closePtr, closePtrList, true))
return true;
else if (doOperateRuleSub(ItemNum, 0, *closePtrList, closePtrList, true))
return true;
}
return false;
}
/**
* Goes through the rules if the user tries to go forward.
*/
bool LabEngine::doGoForward(CloseDataPtr *closePtrList) {
RuleList *rules = _rooms[_roomNum]._rules;
for (RuleList::iterator ruleIter = rules->begin(); ruleIter != rules->end(); ++ruleIter) {
Rule *rule = *ruleIter;
if ((rule->_ruleType == GOFORWARD) && (rule->_param1 == (_direction + 1))) {
if (checkConditions(rule->_condition)) {
doActions(rule->_actionList, closePtrList);
return true;
}
}
}
return false;
}
/**
* Goes through the rules if the user tries to turn.
*/
bool LabEngine::doTurn(uint16 from, uint16 to, CloseDataPtr *closePtrList) {
from++;
to++;
RuleList *rules = _rooms[_roomNum]._rules;
for (RuleList::iterator rule = rules->begin(); rule != rules->end(); ++rule) {
if (((*rule)->_ruleType == TURN) ||
(((*rule)->_ruleType == TURNFROMTO) &&
((*rule)->_param1 == from) && ((*rule)->_param2 == to))) {
if (checkConditions((*rule)->_condition)) {
doActions((*rule)->_actionList, closePtrList);
return true;
}
}
}
return false;
}
/**
* Goes through the rules if the user tries to go to the main view
*/
bool LabEngine::doMainView(CloseDataPtr *closePtrList) {
RuleList *rules = _rooms[_roomNum]._rules;
for (RuleList::iterator rule = rules->begin(); rule != rules->end(); ++rule) {
if ((*rule)->_ruleType == GOMAINVIEW) {
if (checkConditions((*rule)->_condition)) {
doActions((*rule)->_actionList, closePtrList);
return true;
}
}
}
return false;
}
} // End of namespace Lab
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