scummvm/engines/parallaction/dialogue.cpp
2012-09-27 22:41:51 +02:00

569 lines
13 KiB
C++

/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#include "common/events.h"
#include "common/debug-channels.h"
#include "common/textconsole.h"
#include "parallaction/exec.h"
#include "parallaction/input.h"
#include "parallaction/parallaction.h"
namespace Parallaction {
#define MAX_PASSWORD_LENGTH 7
/*
#define QUESTION_BALLOON_X 140
#define QUESTION_BALLOON_Y 10
#define QUESTION_CHARACTER_X 190
#define QUESTION_CHARACTER_Y 80
#define ANSWER_CHARACTER_X 10
#define ANSWER_CHARACTER_Y 80
*/
struct BalloonPositions {
Common::Point _questionBalloon;
Common::Point _questionChar;
Common::Point _answerChar;
};
class DialogueManager {
Parallaction *_vm;
Dialogue *_dialogue;
bool isNpc;
GfxObj *_questioner;
GfxObj *_answerer;
int _faceId;
Question *_q;
int _answerId;
int _selection, _oldSelection;
uint32 _mouseButtons;
Common::Point _mousePos;
protected:
BalloonPositions _ballonPos;
struct VisibleAnswer {
Answer *_a;
int _index; // index into Question::_answers[]
int _balloon;
} _visAnswers[5];
int _numVisAnswers;
bool _isKeyDown;
uint16 _downKey;
protected:
Gfx *_gfx;
BalloonManager *_balloonMan;
public:
DialogueManager(Parallaction *vm, ZonePtr z);
virtual ~DialogueManager();
void start();
bool isOver() {
return _state == DIALOGUE_OVER;
}
void run();
ZonePtr _z;
CommandList *_cmdList;
protected:
enum DialogueState {
DIALOGUE_START,
RUN_QUESTION,
RUN_ANSWER,
NEXT_QUESTION,
NEXT_ANSWER,
DIALOGUE_OVER
} _state;
static const int NO_ANSWER_SELECTED = -1;
void transitionToState(DialogueState newState);
bool displayQuestion();
void displayAnswers();
bool testAnswerFlags(Answer *a);
virtual void addVisibleAnswers(Question *q) = 0;
virtual int16 selectAnswer() = 0;
int16 selectAnswer1();
int16 selectAnswerN();
int16 getHoverAnswer(int16 x, int16 y);
void runQuestion();
void runAnswer();
void nextQuestion();
void nextAnswer();
};
DialogueManager::DialogueManager(Parallaction *vm, ZonePtr z) : _vm(vm), _z(z) {
_gfx = _vm->_gfx;
_balloonMan = _vm->_balloonMan;
_dialogue = _z->u._speakDialogue;
isNpc = !_z->u._filename.empty() && _z->u._filename.compareToIgnoreCase("yourself");
_questioner = isNpc ? _vm->_disk->loadTalk(_z->u._filename.c_str()) : _vm->_char._talk;
_answerer = _vm->_char._talk;
_cmdList = 0;
_answerId = 0;
}
void DialogueManager::start() {
assert(_dialogue);
_q = _dialogue->_questions[0];
_state = DIALOGUE_START;
transitionToState(displayQuestion() ? RUN_QUESTION : NEXT_ANSWER);
}
DialogueManager::~DialogueManager() {
if (isNpc) {
delete _questioner;
}
_z.reset();
}
void DialogueManager::transitionToState(DialogueState newState) {
static const char *dialogueStates[] = {
"start",
"runquestion",
"runanswer",
"nextquestion",
"nextanswer",
"over"
};
if (_state != newState) {
debugC(3, kDebugDialogue, "DialogueManager moved to state '%s'", dialogueStates[newState]);
if (DebugMan.isDebugChannelEnabled(kDebugDialogue) && gDebugLevel == 9) {
switch (newState) {
case RUN_QUESTION:
debug(" Q : %s", _q->_text.c_str());
break;
case RUN_ANSWER:
for (int i = 0; i < _numVisAnswers; ++i) {
debug(" A%02i: %s", i, _visAnswers[i]._a->_text.c_str());
}
break;
default:
break;
}
}
}
_state = newState;
}
bool DialogueManager::testAnswerFlags(Answer *a) {
uint32 flags = _vm->getLocationFlags();
if (a->_yesFlags & kFlagsGlobal)
flags = g_globalFlags | kFlagsGlobal;
return ((a->_yesFlags & flags) == a->_yesFlags) && ((a->_noFlags & ~flags) == a->_noFlags);
}
void DialogueManager::displayAnswers() {
// create balloons
int id;
for (int i = 0; i < _numVisAnswers; ++i) {
id = _balloonMan->setDialogueBalloon(_visAnswers[i]._a->_text, 1, BalloonManager::kUnselectedColor);
assert(id >= 0);
_visAnswers[i]._balloon = id;
}
int mood = 0;
if (_numVisAnswers == 1) {
mood = _visAnswers[0]._a->speakerMood();
_balloonMan->setBalloonText(_visAnswers[0]._balloon, _visAnswers[0]._a->_text, BalloonManager::kNormalColor);
} else
if (_numVisAnswers > 1) {
mood = _visAnswers[0]._a->speakerMood();
_oldSelection = NO_ANSWER_SELECTED;
_selection = 0;
}
_faceId = _gfx->setItem(_answerer, _ballonPos._answerChar.x, _ballonPos._answerChar.y);
_gfx->setItemFrame(_faceId, mood);
}
int16 DialogueManager::selectAnswer1() {
if (_visAnswers[0]._a->textIsNull()) {
return _visAnswers[0]._index;
}
if (_mouseButtons == kMouseLeftUp) {
return _visAnswers[0]._index;
}
return NO_ANSWER_SELECTED;
}
int16 DialogueManager::selectAnswerN() {
_selection = _balloonMan->hitTestDialogueBalloon(_mousePos.x, _mousePos.y);
VisibleAnswer *oldAnswer = &_visAnswers[_oldSelection];
VisibleAnswer *answer = &_visAnswers[_selection];
if (_selection != _oldSelection) {
if (_oldSelection != NO_ANSWER_SELECTED) {
_balloonMan->setBalloonText(oldAnswer->_balloon, oldAnswer->_a->_text, BalloonManager::kUnselectedColor);
}
if (_selection != NO_ANSWER_SELECTED) {
_balloonMan->setBalloonText(answer->_balloon, answer->_a->_text, BalloonManager::kSelectedColor);
_gfx->setItemFrame(_faceId, answer->_a->speakerMood());
}
}
_oldSelection = _selection;
if ((_mouseButtons == kMouseLeftUp) && (_selection != NO_ANSWER_SELECTED)) {
return _visAnswers[_selection]._index;
}
return NO_ANSWER_SELECTED;
}
bool DialogueManager::displayQuestion() {
if (_q->textIsNull()) return false;
_balloonMan->setSingleBalloon(_q->_text, _ballonPos._questionBalloon.x, _ballonPos._questionBalloon.y, _q->balloonWinding(), BalloonManager::kNormalColor);
_faceId = _gfx->setItem(_questioner, _ballonPos._questionChar.x, _ballonPos._questionChar.y);
_gfx->setItemFrame(_faceId, _q->speakerMood());
return true;
}
void DialogueManager::runQuestion() {
if (_mouseButtons == kMouseLeftUp) {
_gfx->freeDialogueObjects();
transitionToState(NEXT_ANSWER);
}
}
void DialogueManager::nextAnswer() {
if (_q->_answers[0] == NULL) {
transitionToState(DIALOGUE_OVER);
return;
}
// try and check if there are any suitable answers,
// given the current game state.
addVisibleAnswers(_q);
if (!_numVisAnswers) {
// if there are no answers, then chicken out
transitionToState(DIALOGUE_OVER);
return;
}
if (_visAnswers[0]._a->textIsNull()) {
// if the first answer is null (it's implied that it's the
// only one because we already called addVisibleAnswers),
// then jump to the next question
_answerId = _visAnswers[0]._index;
transitionToState(NEXT_QUESTION);
} else {
// at this point we are sure there are non-null answers to show
displayAnswers();
transitionToState(RUN_ANSWER);
}
}
void DialogueManager::runAnswer() {
_answerId = selectAnswer();
if (_answerId != NO_ANSWER_SELECTED) {
_cmdList = &_q->_answers[_answerId]->_commands;
_gfx->freeDialogueObjects();
transitionToState(NEXT_QUESTION);
}
}
void DialogueManager::nextQuestion() {
_q = _dialogue->findQuestion(_q->_answers[_answerId]->_followingName);
if (_q == 0) {
transitionToState(DIALOGUE_OVER);
} else {
transitionToState(displayQuestion() ? RUN_QUESTION : NEXT_ANSWER);
}
}
void DialogueManager::run() {
// cache event data
_mouseButtons = _vm->_input->getLastButtonEvent();
_vm->_input->getCursorPos(_mousePos);
_isKeyDown = _vm->_input->getLastKeyDown(_downKey);
switch (_state) {
case RUN_QUESTION:
runQuestion();
break;
case NEXT_ANSWER:
nextAnswer();
break;
case NEXT_QUESTION:
nextQuestion();
break;
case RUN_ANSWER:
runAnswer();
break;
case DIALOGUE_OVER:
break;
default:
error("unknown state in DialogueManager");
}
}
class DialogueManager_ns : public DialogueManager {
protected:
Parallaction_ns *_vm;
bool _passwordChanged;
bool _askPassword;
bool checkPassword() {
return ((!scumm_stricmp(_vm->_char.getBaseName(), g_doughName) && _vm->_password.hasPrefix("1732461")) ||
(!scumm_stricmp(_vm->_char.getBaseName(), g_donnaName) && _vm->_password.hasPrefix("1622")) ||
(!scumm_stricmp(_vm->_char.getBaseName(), g_dinoName) && _vm->_password.hasPrefix("179")));
}
void resetPassword() {
_vm->_password.clear();
_passwordChanged = true;
}
void accumPassword(uint16 ascii) {
if (!Common::isDigit(ascii)) {
return;
}
_vm->_password += ascii;
_passwordChanged = true;
}
int16 askPassword() {
if (_isKeyDown) {
accumPassword(_downKey);
}
if (_passwordChanged) {
_balloonMan->setBalloonText(_visAnswers[0]._balloon, _visAnswers[0]._a->_text, BalloonManager::kNormalColor);
_passwordChanged = false;
}
if ((_vm->_password.size() == MAX_PASSWORD_LENGTH) || ((_isKeyDown) && (_downKey == Common::KEYCODE_RETURN))) {
if (checkPassword()) {
return 0;
} else {
resetPassword();
}
}
return NO_ANSWER_SELECTED;
}
public:
DialogueManager_ns(Parallaction_ns *vm, ZonePtr z) : DialogueManager(vm, z), _vm(vm) {
_ballonPos._questionBalloon = Common::Point(140, 10);
_ballonPos._questionChar = Common::Point(190, 80);
_ballonPos._answerChar = Common::Point(10, 80);
}
bool canDisplayAnswer(Answer *a) {
return testAnswerFlags(a);
}
virtual void addVisibleAnswers(Question *q) {
_askPassword = false;
_numVisAnswers = 0;
for (int i = 0; i < NUM_ANSWERS && q->_answers[i]; i++) {
Answer *a = q->_answers[i];
if (!canDisplayAnswer(a)) {
continue;
}
if (a->_text.contains("%P")) {
_askPassword = true;
}
_visAnswers[_numVisAnswers]._a = a;
_visAnswers[_numVisAnswers]._index = i;
_numVisAnswers++;
}
resetPassword();
}
virtual int16 selectAnswer() {
int ans = NO_ANSWER_SELECTED;
if (_askPassword) {
ans = askPassword();
} else
if (_numVisAnswers == 1) {
ans = selectAnswer1();
} else {
ans = selectAnswerN();
}
return ans;
}
};
class DialogueManager_br : public DialogueManager {
Parallaction_br *_vm;
public:
DialogueManager_br(Parallaction_br *vm, ZonePtr z) : DialogueManager(vm, z), _vm(vm) {
_ballonPos._questionBalloon = Common::Point(0, 0);
_ballonPos._questionChar = Common::Point(380, 80);
_ballonPos._answerChar = Common::Point(10, 80);
}
bool canDisplayAnswer(Answer *a) {
if (!a)
return false;
if (a->_hasCounterCondition) {
_vm->testCounterCondition(a->_counterName, a->_counterOp, a->_counterValue);
return (_vm->getLocationFlags() & kFlagsTestTrue) != 0;
}
return testAnswerFlags(a);
}
virtual void addVisibleAnswers(Question *q) {
_numVisAnswers = 0;
for (int i = 0; i < NUM_ANSWERS && q->_answers[i]; i++) {
Answer *a = q->_answers[i];
if (!canDisplayAnswer(a)) {
continue;
}
_visAnswers[_numVisAnswers]._a = a;
_visAnswers[_numVisAnswers]._index = i;
_numVisAnswers++;
}
}
virtual int16 selectAnswer() {
int16 ans = NO_ANSWER_SELECTED;
if (_numVisAnswers == 1) {
ans = selectAnswer1();
} else {
ans = selectAnswerN();
}
return ans;
}
};
void Parallaction::enterDialogueMode(ZonePtr z) {
if (!z->u._speakDialogue) {
return;
}
debugC(1, kDebugDialogue, "Parallaction::enterDialogueMode(%s)", z->u._filename.c_str());
_dialogueMan = createDialogueManager(z);
assert(_dialogueMan);
_dialogueMan->start();
_input->_inputMode = Input::kInputModeDialogue;
}
void Parallaction::exitDialogueMode() {
debugC(1, kDebugDialogue, "Parallaction::exitDialogueMode()");
_input->_inputMode = Input::kInputModeGame;
/* Since the current instance of _dialogueMan must be destroyed before the
zone commands are executed, as they may create a new instance of _dialogueMan that
would overwrite the current, we need to save the references to the command lists.
*/
CommandList *_cmdList = _dialogueMan->_cmdList;
ZonePtr z = _dialogueMan->_z;
// destroy the _dialogueMan here
destroyDialogueManager();
// run the lists saved
if (_cmdList) {
_cmdExec->run(*_cmdList);
}
_cmdExec->run(z->_commands, z);
}
void Parallaction::destroyDialogueManager() {
// destroy the _dialogueMan here
delete _dialogueMan;
_dialogueMan = 0;
}
void Parallaction::runDialogueFrame() {
if (_input->_inputMode != Input::kInputModeDialogue) {
return;
}
_dialogueMan->run();
if (_dialogueMan->isOver()) {
exitDialogueMode();
}
return;
}
DialogueManager *Parallaction_ns::createDialogueManager(ZonePtr z) {
return new DialogueManager_ns(this, z);
}
DialogueManager *Parallaction_br::createDialogueManager(ZonePtr z) {
return new DialogueManager_br(this, z);
}
} // namespace Parallaction