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path: root/engines/parallaction/parser_ns.cpp
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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.
 *
 * $URL$
 * $Id$
 *
 */


#include "parallaction/parallaction.h"
#include "parallaction/sound.h"

namespace Parallaction {

#define CMD_SET				1
#define CMD_CLEAR			2
#define CMD_START			3
#define CMD_SPEAK			4
#define CMD_GET				5
#define CMD_LOCATION		6
#define CMD_OPEN			7
#define CMD_CLOSE			8
#define CMD_ON				9
#define CMD_OFF				10
#define CMD_CALL			11
#define CMD_TOGGLE			12
#define CMD_DROP			13
#define CMD_QUIT			14
#define CMD_MOVE			15
#define CMD_STOP			16

#define INST_ON				1
#define INST_OFF			2
#define INST_X				3
#define INST_Y				4
#define INST_Z				5
#define INST_F				6
#define INST_LOOP			7
#define INST_ENDLOOP		8
#define INST_SHOW			9
#define INST_INC			10
#define INST_DEC			11
#define INST_SET			12
#define INST_PUT			13
#define INST_CALL			14
#define INST_WAIT			15
#define INST_START			16
#define INST_SOUND			17
#define INST_MOVE			18
#define INST_END			19


#define DECLARE_ZONE_PARSER(sig) void Parallaction_ns::locZoneParse_##sig()
#define DECLARE_ANIM_PARSER(sig) void Parallaction_ns::locAnimParse_##sig()
#define DECLARE_COMMAND_PARSER(sig) void Parallaction_ns::cmdParse_##sig()
#define DECLARE_INSTRUCTION_PARSER(sig) void Parallaction_ns::instParse_##sig()
#define DECLARE_LOCATION_PARSER(sig) void Parallaction_ns::locParse_##sig()


void Parallaction_ns::warning_unexpected() {
	debugC(1, kDebugParser, "unexpected keyword '%s' in line %i", _tokens[0], _locParseCtxt.script->getLine());
}


DECLARE_ANIM_PARSER(script)  {
	debugC(7, kDebugParser, "ANIM_PARSER(script) ");

	_locParseCtxt.a->_scriptName = strdup(_tokens[1]);
}


DECLARE_ANIM_PARSER(commands)  {
	debugC(7, kDebugParser, "ANIM_PARSER(commands) ");

	 parseCommands(*_locParseCtxt.script, _locParseCtxt.a->_commands);
}


DECLARE_ANIM_PARSER(type)  {
	debugC(7, kDebugParser, "ANIM_PARSER(type) ");

	if (_tokens[2][0] != '\0') {
		_locParseCtxt.a->_type = ((4 + _objectsNames->lookup(_tokens[2])) << 16) & 0xFFFF0000;
	}
	int16 _si = _zoneTypeNames->lookup(_tokens[1]);
	if (_si != Table::notFound) {
		_locParseCtxt.a->_type |= 1 << (_si-1);
		if (((_locParseCtxt.a->_type & 0xFFFF) != kZoneNone) && ((_locParseCtxt.a->_type & 0xFFFF) != kZoneCommand)) {
			parseZoneTypeBlock(*_locParseCtxt.script, _locParseCtxt.a);
		}
	}

	_locParseCtxt.a->_oldPos.x = -1000;
	_locParseCtxt.a->_oldPos.y = -1000;

	_locParseCtxt.a->_flags |= 0x1000000;

	_locationParser->popTables();
}


DECLARE_ANIM_PARSER(label)  {
	debugC(7, kDebugParser, "ANIM_PARSER(label) ");

	_locParseCtxt.a->_label = _gfx->renderFloatingLabel(_labelFont, _tokens[1]);
}


DECLARE_ANIM_PARSER(flags)  {
	debugC(7, kDebugParser, "ANIM_PARSER(flags) ");

	uint16 _si = 1;

	do {
		byte _al = _zoneFlagNames->lookup(_tokens[_si]);
		_si++;
		_locParseCtxt.a->_flags |= 1 << (_al - 1);
	} while (!scumm_stricmp(_tokens[_si++], "|"));
}


DECLARE_ANIM_PARSER(file)  {
	debugC(7, kDebugParser, "ANIM_PARSER(file) ");

	char vC8[200];
	strcpy(vC8, _tokens[1]);
	if (_engineFlags & kEngineTransformedDonna) {
		if (!scumm_stricmp(_tokens[1], "donnap") || !scumm_stricmp(_tokens[1], "donnapa")) {
			strcat(vC8, "tras");
		}
	}
	_locParseCtxt.a->gfxobj = _gfx->loadAnim(vC8);
}


DECLARE_ANIM_PARSER(position)  {
	debugC(7, kDebugParser, "ANIM_PARSER(position) ");

	_locParseCtxt.a->_left = atoi(_tokens[1]);
	_locParseCtxt.a->_top = atoi(_tokens[2]);
	_locParseCtxt.a->_z = atoi(_tokens[3]);
}


DECLARE_ANIM_PARSER(moveto)  {
	debugC(7, kDebugParser, "ANIM_PARSER(moveto) ");

	_locParseCtxt.a->_moveTo.x = atoi(_tokens[1]);
	_locParseCtxt.a->_moveTo.y = atoi(_tokens[2]);
}


DECLARE_ANIM_PARSER(endanimation)  {
	debugC(7, kDebugParser, "ANIM_PARSER(endanimation) ");


	_locParseCtxt.a->_oldPos.x = -1000;
	_locParseCtxt.a->_oldPos.y = -1000;

	_locParseCtxt.a->_flags |= 0x1000000;

	_locationParser->popTables();
}

void Parallaction_ns::parseAnimation(Script& script, AnimationList &list, char *name) {
	debugC(5, kDebugParser, "parseAnimation(name: %s)", name);

	AnimationPtr a(new Animation);

	strncpy(a->_name, name, ZONENAME_LENGTH);

	list.push_front(AnimationPtr(a));

	_locParseCtxt.a = a;
	_locParseCtxt.script = &script;

	_locationParser->pushTables(&_locationAnimParsers, _locationAnimStmt);
}

void Parallaction_ns::parseInstruction(ProgramPtr program) {

	InstructionPtr inst(new Instruction);

	if (_tokens[0][1] == '.') {
		_tokens[0][1] = '\0';
		_instParseCtxt.a = findAnimation(&_tokens[0][2]);
	} else
	if (_tokens[1][1] == '.') {
		_tokens[1][1] = '\0';
		_instParseCtxt.a = findAnimation(&_tokens[1][2]);
	} else
		_instParseCtxt.a = program->_anim;

	inst->_index = _instructionNames->lookup(_tokens[0]);
	_instParseCtxt.inst = inst;
	_instParseCtxt.locals = program->_locals;

	(*(_instructionParsers[inst->_index]))();

	program->_instructions.push_back(inst);

	return;
}

void Parallaction_ns::loadProgram(AnimationPtr a, const char *filename) {
	debugC(1, kDebugParser, "loadProgram(Animation: %s, script: %s)", a->_name, filename);

	Script *script = _disk->loadScript(filename);
	ProgramPtr program(new Program);
	program->_anim = a;

	_instParseCtxt.openIf = nullInstructionPtr;
	_instParseCtxt.end = false;
	_instParseCtxt.program = program;

	do {
		script->readLineToken();
		parseInstruction(program);
	} while (!_instParseCtxt.end);

	program->_ip = program->_instructions.begin();

	delete script;

	_location._programs.push_back(program);

	debugC(1, kDebugParser, "loadProgram() done");

	return;
}

DECLARE_INSTRUCTION_PARSER(animation)  {
	debugC(7, kDebugParser, "INSTRUCTION_PARSER(animation) ");

	if (!scumm_stricmp(_tokens[1], _instParseCtxt.a->_name)) {
		_instParseCtxt.inst->_a = _instParseCtxt.a;
	} else {
		_instParseCtxt.inst->_a = findAnimation(_tokens[1]);
	}
}


DECLARE_INSTRUCTION_PARSER(loop)  {
	debugC(7, kDebugParser, "INSTRUCTION_PARSER(loop) ");

	parseRValue(_instParseCtxt.inst->_opB, _tokens[1]);
}


DECLARE_INSTRUCTION_PARSER(x)  {
	debugC(7, kDebugParser, "INSTRUCTION_PARSER(x) ");

	parseLValue(_instParseCtxt.inst->_opA, "X");
	parseRValue(_instParseCtxt.inst->_opB, _tokens[1]);
}


DECLARE_INSTRUCTION_PARSER(y)  {
	debugC(7, kDebugParser, "INSTRUCTION_PARSER(y) ");

	parseLValue(_instParseCtxt.inst->_opA, "Y");
	parseRValue(_instParseCtxt.inst->_opB, _tokens[1]);
}


DECLARE_INSTRUCTION_PARSER(z)  {
	debugC(7, kDebugParser, "INSTRUCTION_PARSER(z) ");

	parseLValue(_instParseCtxt.inst->_opA, "Z");
	parseRValue(_instParseCtxt.inst->_opB, _tokens[1]);
}


DECLARE_INSTRUCTION_PARSER(f)  {
	debugC(7, kDebugParser, "INSTRUCTION_PARSER(f) ");

	parseLValue(_instParseCtxt.inst->_opA, "F");
	parseRValue(_instParseCtxt.inst->_opB, _tokens[1]);
}


DECLARE_INSTRUCTION_PARSER(inc)  {
	debugC(7, kDebugParser, "INSTRUCTION_PARSER(inc) ");

	parseLValue(_instParseCtxt.inst->_opA, _tokens[1]);
	parseRValue(_instParseCtxt.inst->_opB, _tokens[2]);

	if (!scumm_stricmp(_tokens[3], "mod")) {
		_instParseCtxt.inst->_flags |= kInstMod;
	}
}


DECLARE_INSTRUCTION_PARSER(set)  {
	debugC(7, kDebugParser, "INSTRUCTION_PARSER(set) ");

	// WORKAROUND: At least one script (balzo.script) in Amiga versions didn't declare
	//	local variables before using them, thus leading to crashes. The line launching the
	// script was commented out on Dos version. This workaround enables the engine
	// to dynamically add a local variable when it is encountered the first time in
	// the script, so should fix any other occurrence as well.
	if (_instParseCtxt.program->findLocal(_tokens[1]) == -1) {
		_instParseCtxt.program->addLocal(_tokens[1]);
	}

	parseLValue(_instParseCtxt.inst->_opA, _tokens[1]);
	parseRValue(_instParseCtxt.inst->_opB, _tokens[2]);
}


DECLARE_INSTRUCTION_PARSER(move)  {
	debugC(7, kDebugParser, "INSTRUCTION_PARSER(move) ");

	parseRValue(_instParseCtxt.inst->_opA, _tokens[1]);
	parseRValue(_instParseCtxt.inst->_opB, _tokens[2]);
}


DECLARE_INSTRUCTION_PARSER(put)  {
	debugC(7, kDebugParser, "INSTRUCTION_PARSER(put) ");

	if (!scumm_stricmp(_tokens[1], _instParseCtxt.a->_name)) {
		_instParseCtxt.inst->_a = _instParseCtxt.a;
	} else {
		_instParseCtxt.inst->_a = findAnimation(_tokens[1]);
	}

	parseRValue(_instParseCtxt.inst->_opA, _tokens[2]);
	parseRValue(_instParseCtxt.inst->_opB, _tokens[3]);
	if (!scumm_stricmp(_tokens[4], "masked")) {
		_instParseCtxt.inst->_flags |= kInstMaskedPut;
	}
}


DECLARE_INSTRUCTION_PARSER(call)  {
	debugC(7, kDebugParser, "INSTRUCTION_PARSER(call) ");

	int index = _callableNames->lookup(_tokens[1]);
	if (index == Table::notFound)
		error("unknown callable '%s'", _tokens[1]);
	_instParseCtxt.inst->_immediate = index - 1;
}


DECLARE_INSTRUCTION_PARSER(sound)  {
	debugC(7, kDebugParser, "INSTRUCTION_PARSER(sound) ");

	_instParseCtxt.inst->_z = findZone(_tokens[1]);
}


DECLARE_INSTRUCTION_PARSER(null)  {
	debugC(7, kDebugParser, "INSTRUCTION_PARSER(null) ");


}


DECLARE_INSTRUCTION_PARSER(defLocal)  {
	debugC(7, kDebugParser, "INSTRUCTION_PARSER(defLocal) ");

	int16 val = atoi(_tokens[2]);
	int16 index;

	if (_tokens[3][0] != '\0') {
		index = _instParseCtxt.program->addLocal(_tokens[0], val, atoi(_tokens[3]), atoi(_tokens[4]));
	} else {
		index = _instParseCtxt.program->addLocal(_tokens[0], val);
	}

	_instParseCtxt.inst->_opA.setLocal(&_instParseCtxt.locals[index]);
	_instParseCtxt.inst->_opB.setImmediate(_instParseCtxt.locals[index]._value);

	_instParseCtxt.inst->_index = INST_SET;
}

DECLARE_INSTRUCTION_PARSER(endscript)  {
	debugC(7, kDebugParser, "INSTRUCTION_PARSER(endscript) ");

	_instParseCtxt.end = true;
}



void Parallaction_ns::parseRValue(ScriptVar &v, const char *str) {

	if (isdigit(str[0]) || str[0] == '-') {
		v.setImmediate(atoi(str));
		return;
	}

	int index = _instParseCtxt.program->findLocal(str);
	if (index != -1) {
		v.setLocal(&_instParseCtxt.locals[index]);
		return;
	}

	AnimationPtr a;
	if (str[1] == '.') {
		a = findAnimation(&str[2]);
	} else {
		a = _instParseCtxt.a;
	}

	if (str[0] == 'X') {
		v.setField(&a->_left);
	} else
	if (str[0] == 'Y') {
		v.setField(&a->_top);
	} else
	if (str[0] == 'Z') {
		v.setField(&a->_z);
	} else
	if (str[0] == 'F') {
		v.setField(&a->_frame);
	}

}

void Parallaction_ns::parseLValue(ScriptVar &v, const char *str) {

	int index = _instParseCtxt.program->findLocal(str);
	if (index != -1) {
		v.setLocal(&_instParseCtxt.locals[index]);
		return;
	}

	AnimationPtr a;
	if (str[1] == '.') {
		a = findAnimation(&str[2]);
	} else {
		a = _instParseCtxt.a;
	}

	if (str[0] == 'X') {
		v.setField(&a->_left);
	} else
	if (str[0] == 'Y') {
		v.setField(&a->_top);
	} else
	if (str[0] == 'Z') {
		v.setField(&a->_z);
	} else
	if (str[0] == 'F') {
		v.setField(&a->_frame);
	}

}


DECLARE_COMMAND_PARSER(flags)  {
	debugC(7, kDebugParser, "COMMAND_PARSER(flags) ");

	createCommand(_locationParser->_lookup);

	if (_globalTable->lookup(_tokens[1]) == Table::notFound) {
		do {
			char _al = _localFlagNames->lookup(_tokens[_locParseCtxt.nextToken]);
			_locParseCtxt.nextToken++;
			_locParseCtxt.cmd->u._flags |= 1 << (_al - 1);
		} while (!scumm_stricmp(_tokens[_locParseCtxt.nextToken++], "|"));
		_locParseCtxt.nextToken--;
	} else {
		_locParseCtxt.cmd->u._flags |= kFlagsGlobal;
		do {
			char _al = _globalTable->lookup(_tokens[1]);
			_locParseCtxt.nextToken++;
			_locParseCtxt.cmd->u._flags |= 1 << (_al - 1);
		} while (!scumm_stricmp(_tokens[_locParseCtxt.nextToken++], "|"));
		_locParseCtxt.nextToken--;
	}

	parseCommandFlags();
	addCommand();
}


DECLARE_COMMAND_PARSER(zone)  {
	debugC(7, kDebugParser, "COMMAND_PARSER(zone) ");

	createCommand(_locationParser->_lookup);

	_locParseCtxt.cmd->u._zone = findZone(_tokens[_locParseCtxt.nextToken]);
	if (!_locParseCtxt.cmd->u._zone) {
		saveCommandForward(_tokens[_locParseCtxt.nextToken], _locParseCtxt.cmd);
	}
	_locParseCtxt.nextToken++;

	parseCommandFlags();
	addCommand();
}


DECLARE_COMMAND_PARSER(location)  {
	debugC(7, kDebugParser, "COMMAND_PARSER(location) ");

	createCommand(_locationParser->_lookup);

	_locParseCtxt.cmd->u._string = strdup(_tokens[_locParseCtxt.nextToken]);
	_locParseCtxt.nextToken++;

	parseCommandFlags();
	addCommand();
}


DECLARE_COMMAND_PARSER(drop)  {
	debugC(7, kDebugParser, "COMMAND_PARSER(drop) ");

	createCommand(_locationParser->_lookup);

	_locParseCtxt.cmd->u._object = 4 + _objectsNames->lookup(_tokens[_locParseCtxt.nextToken]);
	_locParseCtxt.nextToken++;

	parseCommandFlags();
	addCommand();
}


DECLARE_COMMAND_PARSER(call)  {
	debugC(7, kDebugParser, "COMMAND_PARSER(call) ");

	createCommand(_locationParser->_lookup);

	_locParseCtxt.cmd->u._callable = _callableNames->lookup(_tokens[_locParseCtxt.nextToken]) - 1;
	_locParseCtxt.nextToken++;

	parseCommandFlags();
	addCommand();
}


DECLARE_COMMAND_PARSER(simple)  {
	debugC(7, kDebugParser, "COMMAND_PARSER(simple) ");

	createCommand(_locationParser->_lookup);
	addCommand();
}


DECLARE_COMMAND_PARSER(move)  {
	debugC(7, kDebugParser, "COMMAND_PARSER(move) ");

	createCommand(_locationParser->_lookup);

	_locParseCtxt.cmd->u._move.x = atoi(_tokens[_locParseCtxt.nextToken]);
	_locParseCtxt.nextToken++;
	_locParseCtxt.cmd->u._move.y = atoi(_tokens[_locParseCtxt.nextToken]);
	_locParseCtxt.nextToken++;

	parseCommandFlags();
	addCommand();
}

DECLARE_COMMAND_PARSER(endcommands)  {
	debugC(7, kDebugParser, "COMMAND_PARSER(endcommands) ");

	_locationParser->popTables();

	// temporary trick to handle dialogue commands
	_locParseCtxt.endcommands = true;
}

void Parallaction_ns::parseCommandFlags() {

	int _si = _locParseCtxt.nextToken;
	CommandPtr cmd = _locParseCtxt.cmd;

	if (!scumm_stricmp(_tokens[_si], "flags")) {
		_si++;

		do {
			if (!scumm_stricmp(_tokens[_si], "exit") || !scumm_stricmp(_tokens[_si], "exittrap")) {
				cmd->_flagsOn |= kFlagsExit;
			} else
			if (!scumm_stricmp(_tokens[_si], "enter") || !scumm_stricmp(_tokens[_si], "entertrap")) {
				cmd->_flagsOn |= kFlagsEnter;
			} else
			if (!scumm_strnicmp(_tokens[_si], "no", 2)) {
				byte _al = _localFlagNames->lookup(&_tokens[_si][2]);
				assert(_al != Table::notFound);
				cmd->_flagsOff |= 1 << (_al - 1);
			} else {
				byte _al = _localFlagNames->lookup(_tokens[_si]);
				assert(_al != Table::notFound);
				cmd->_flagsOn |= 1 << (_al - 1);
			}

			_si++;

		} while (!scumm_stricmp(_tokens[_si++], "|"));

	}

	if (!scumm_stricmp(_tokens[_si], "gflags")) {
		_si++;
		cmd->_flagsOn |= kFlagsGlobal;

		do {
			if (!scumm_stricmp(_tokens[_si], "exit")) {
				cmd->_flagsOn |= kFlagsExit;
			} else
			if (!scumm_stricmp(_tokens[_si], "enter")) {
				cmd->_flagsOn |= kFlagsEnter;
			} else
			if (!scumm_strnicmp(_tokens[_si], "no", 2)) {
				byte _al = _globalTable->lookup(&_tokens[_si][2]);
				assert(_al != Table::notFound);
				cmd->_flagsOff |= 1 << (_al - 1);
			} else {
				byte _al = _globalTable->lookup(_tokens[_si]);
				assert(_al != Table::notFound);
				cmd->_flagsOn |= 1 << (_al - 1);
			}

			_si++;

		} while (!scumm_stricmp(_tokens[_si++], "|"));

	}

	_si = _locParseCtxt.nextToken;

}

void Parallaction_ns::addCommand() {
	_locParseCtxt.list->push_front(_locParseCtxt.cmd);	// NOTE: command lists are written backwards in scripts
}

void Parallaction_ns::createCommand(uint id) {

	_locParseCtxt.nextToken = 1;
	_locParseCtxt.cmd = CommandPtr(new Command);
	_locParseCtxt.cmd->_id = id;

}

void Parallaction_ns::saveCommandForward(const char *name, CommandPtr cmd) {
	assert(_numForwardedCommands < MAX_FORWARDS);

	strcpy(_forwardedCommands[_numForwardedCommands].name, name);
	_forwardedCommands[_numForwardedCommands].cmd = cmd;

	_numForwardedCommands++;
}

void Parallaction_ns::resolveCommandForwards() {
	for (uint i = 0; i < _numForwardedCommands; i++) {
		_forwardedCommands[i].cmd->u._zone = findZone(_forwardedCommands[i].name);
		if (_forwardedCommands[i].cmd->u._zone == 0) {
			warning("Cannot find zone '%s' into current location script. This may be a bug in the original scripts.\n", _forwardedCommands[i].name);
		}
	}
	_numForwardedCommands = 0;
}

void Parallaction_ns::parseCommands(Script &script, CommandList& list) {
	debugC(5, kDebugParser, "parseCommands()");

	_locParseCtxt.list = &list;
	_locParseCtxt.endcommands = false;
	_locParseCtxt.script = &script;

	_locationParser->pushTables(&_commandParsers, _commandsNames);
}

Dialogue *Parallaction_ns::parseDialogue(Script &script) {
	debugC(7, kDebugParser, "parseDialogue()");

	uint16 numQuestions = 0;

	Dialogue *dialogue = new Dialogue;
	assert(dialogue);

	Table forwards(20);

	script.readLineToken(true);

	while (scumm_stricmp(_tokens[0], "enddialogue")) {
		if (scumm_stricmp(_tokens[0], "Question")) continue;

		forwards.addData(_tokens[1]);

		dialogue->_questions[numQuestions++] = parseQuestion(script);

		script.readLineToken(true);
	}

	resolveDialogueForwards(dialogue, numQuestions, forwards);

	debugC(7, kDebugParser, "parseDialogue() done");

	return dialogue;
}

Question *Parallaction_ns::parseQuestion(Script &script) {

	Question *question = new Question;
	assert(question);

	question->_text = parseDialogueString(script);

	script.readLineToken(true);
	question->_mood = atoi(_tokens[0]);

	uint16 numAnswers = 0;

	script.readLineToken(true);
	while (scumm_stricmp(_tokens[0], "endquestion")) {	// parse answers
		question->_answers[numAnswers] = parseAnswer(script);
		numAnswers++;
	}

	return question;
}

Answer *Parallaction_ns::parseAnswer(Script &script) {

	Answer *answer = new Answer;
	assert(answer);

	if (_tokens[1][0]) {

		Table* flagNames;
		uint16 token;

		if (!scumm_stricmp(_tokens[1], "global")) {
			token = 2;
			flagNames = _globalTable;
			answer->_yesFlags |= kFlagsGlobal;
		} else {
			token = 1;
			flagNames = _localFlagNames;
		}

		do {

			if (!scumm_strnicmp(_tokens[token], "no", 2)) {
				byte _al = flagNames->lookup(_tokens[token]+2);
				answer->_noFlags |= 1 << (_al - 1);
			} else {
				byte _al = flagNames->lookup(_tokens[token]);
				answer->_yesFlags |= 1 << (_al - 1);
			}

			token++;

		} while (!scumm_stricmp(_tokens[token++], "|"));

	}

	answer->_text = parseDialogueString(script);

	script.readLineToken(true);
	answer->_mood = atoi(_tokens[0]);
	answer->_following._name = parseDialogueString(script);

	script.readLineToken(true);
	if (!scumm_stricmp(_tokens[0], "commands")) {

		parseCommands(script, answer->_commands);
		_locParseCtxt.endcommands = false;
		do {
			_locationParser->parseStatement();
		} while (!_locParseCtxt.endcommands);

		script.readLineToken(true);
	}

	return answer;
}

void Parallaction_ns::resolveDialogueForwards(Dialogue *dialogue, uint numQuestions, Table &forwards) {

	for (uint16 i = 0; i < numQuestions; i++) {
		Question *question = dialogue->_questions[i];

		for (uint16 j = 0; j < NUM_ANSWERS; j++) {
			Answer *answer = question->_answers[j];
			if (answer == 0) continue;

			int16 index = forwards.lookup(answer->_following._name);
			free(answer->_following._name);
			answer->_following._name = 0;

			if (index == Table::notFound)
				answer->_following._question = 0;
			else
				answer->_following._question = dialogue->_questions[index - 1];

		}
	}

}

char *Parallaction_ns::parseDialogueString(Script &script) {

	char vC8[200];
	char *vD0 = NULL;
	do {

		vD0 = script.readLine(vC8, 200);
		if (vD0 == 0) return NULL;

		vD0 = Common::ltrim(vD0);

	} while (strlen(vD0) == 0);

	vD0[strlen(vD0)-1] = '\0';	// deletes the trailing '0xA'
								// this is critical for Gfx::displayWrappedString to work properly
	return strdup(vD0);
}


DECLARE_LOCATION_PARSER(endlocation)  {
	debugC(7, kDebugParser, "LOCATION_PARSER(endlocation) ");

	_locParseCtxt.end = true;
}


DECLARE_LOCATION_PARSER(location)  {
	debugC(7, kDebugParser, "LOCATION_PARSER(location) ");

	// The parameter for location is 'location.mask'.
	// If mask is not present, then it is assumed
	// that path & mask are encoded in the background
	// bitmap, otherwise a separate .msk file exists.

	char *mask = strchr(_tokens[1], '.');
	if (mask) {
		mask[0] = '\0';
		mask++;
	}

	strcpy(_location._name, _tokens[1]);
	switchBackground(_location._name, mask);

	if (_tokens[2][0] != '\0') {
		_char._ani->_left = atoi(_tokens[2]);
		_char._ani->_top = atoi(_tokens[3]);
	}

	if (_tokens[4][0] != '\0') {
		_char._ani->_frame = atoi(_tokens[4]);
	}
}


DECLARE_LOCATION_PARSER(disk)  {
	debugC(7, kDebugParser, "LOCATION_PARSER(disk) ");

	_disk->selectArchive(_tokens[1]);
}


DECLARE_LOCATION_PARSER(nodes)  {
	debugC(7, kDebugParser, "LOCATION_PARSER(nodes) ");

	parseWalkNodes(*_locParseCtxt.script, _location._walkNodes);
}


DECLARE_LOCATION_PARSER(zone)  {
	debugC(7, kDebugParser, "LOCATION_PARSER(zone) ");

	parseZone(*_locParseCtxt.script, _location._zones, _tokens[1]);
}


DECLARE_LOCATION_PARSER(animation)  {
	debugC(7, kDebugParser, "LOCATION_PARSER(animation) ");

	parseAnimation(*_locParseCtxt.script, _location._animations, _tokens[1]);
}


DECLARE_LOCATION_PARSER(localflags)  {
	debugC(7, kDebugParser, "LOCATION_PARSER(localflags) ");

	int _si = 1;
	while (_tokens[_si][0] != '\0') {
		_localFlagNames->addData(_tokens[_si]);
		_si++;
	}
}


DECLARE_LOCATION_PARSER(commands)  {
	debugC(7, kDebugParser, "LOCATION_PARSER(commands) ");

	parseCommands(*_locParseCtxt.script, _location._commands);
}


DECLARE_LOCATION_PARSER(acommands)  {
	debugC(7, kDebugParser, "LOCATION_PARSER(acommands) ");

	parseCommands(*_locParseCtxt.script, _location._aCommands);
}


DECLARE_LOCATION_PARSER(flags)  {
	debugC(7, kDebugParser, "LOCATION_PARSER(flags) ");

	if ((getLocationFlags() & kFlagsVisited) == 0) {
		// only for 1st visit
		clearLocationFlags(kFlagsAll);
		int _si = 1;

		do {
			byte _al = _localFlagNames->lookup(_tokens[_si]);
			setLocationFlags(1 << (_al - 1));

			_si++;
			if (scumm_stricmp(_tokens[_si], "|")) break;
			_si++;
		} while (true);
	}
}


DECLARE_LOCATION_PARSER(comment)  {
	debugC(7, kDebugParser, "LOCATION_PARSER(comment) ");

	_location._comment = parseComment(*_locParseCtxt.script);
}


DECLARE_LOCATION_PARSER(endcomment)  {
	debugC(7, kDebugParser, "LOCATION_PARSER(endcomment) ");

	_location._endComment = parseComment(*_locParseCtxt.script);
}


DECLARE_LOCATION_PARSER(sound)  {
	debugC(7, kDebugParser, "LOCATION_PARSER(sound) ");

	if (getPlatform() == Common::kPlatformAmiga) {
		strcpy(_location._soundFile, _tokens[1]);
		_location._hasSound = true;
	}
}


DECLARE_LOCATION_PARSER(music)  {
	debugC(7, kDebugParser, "LOCATION_PARSER(music) ");

	if (getPlatform() == Common::kPlatformAmiga)
		_soundMan->setMusicFile(_tokens[1]);
}


void Parallaction_ns::parseLocation(const char *filename) {
	debugC(1, kDebugParser, "parseLocation('%s')", filename);

	allocateLocationSlot(filename);
//	printf("got location slot #%i for %s\n", _currentLocationIndex, filename);

	_numForwardedCommands = 0;

	Script *script = _disk->loadLocation(filename);
	_locationParser->bind(script);

	// TODO: the following two lines are specific to Nippon Safes
	// and should be moved into something like 'initializeParsing()'
	_location._hasSound = false;

	_locParseCtxt.end = false;
	_locParseCtxt.script = script;
	_locParseCtxt.filename = filename;

	_locationParser->pushTables(&_locationParsers, _locationStmt);
	do {
		_locationParser->parseStatement();
	} while (!_locParseCtxt.end);
	_locationParser->popTables();
	_locationParser->unbind();

	delete script;

	resolveCommandForwards();

	// this loads animation scripts
	AnimationList::iterator it = _location._animations.begin();
	for ( ; it != _location._animations.end(); it++) {
		if ((*it)->_scriptName) {
			loadProgram(*it, (*it)->_scriptName);
		}
	}

	debugC(1, kDebugParser, "parseLocation('%s') done", filename);
	return;
}


void Parallaction_ns::parseWalkNodes(Script& script, WalkNodeList &list) {
	debugC(5, kDebugParser, "parseWalkNodes()");

	script.readLineToken(true);
	while (scumm_stricmp(_tokens[0], "ENDNODES")) {

		if (!scumm_stricmp(_tokens[0], "COORD")) {

			WalkNodePtr v4(new WalkNode(
				atoi(_tokens[1]),
				atoi(_tokens[2])
			));

			list.push_front(v4);
		}

		script.readLineToken(true);
	}

	debugC(5, kDebugParser, "parseWalkNodes() done");

	return;
}

typedef OpcodeImpl<Parallaction_ns> OpcodeV1;
#define INSTRUCTION_PARSER(sig) OpcodeV1(this, &Parallaction_ns::instParse_##sig)
#define ZONE_PARSER(sig)		OpcodeV1(this, &Parallaction_ns::locZoneParse_##sig)
#define ANIM_PARSER(sig)		OpcodeV1(this, &Parallaction_ns::locAnimParse_##sig)
#define LOCATION_PARSER(sig)	OpcodeV1(this, &Parallaction_ns::locParse_##sig)
#define COMMAND_PARSER(sig)		OpcodeV1(this, &Parallaction_ns::cmdParse_##sig)

#define WARNING_PARSER(sig)		OpcodeV1(this, &Parallaction_br::warning_##sig)

void Parallaction_ns::initParsers() {

	_locationParser = new Parser;

	static const OpcodeV1 op0[] = {
		INSTRUCTION_PARSER(defLocal),	// invalid opcode -> local definition
		INSTRUCTION_PARSER(animation),	// on
		INSTRUCTION_PARSER(animation),	// off
		INSTRUCTION_PARSER(x),
		INSTRUCTION_PARSER(y),
		INSTRUCTION_PARSER(z),
		INSTRUCTION_PARSER(f),
		INSTRUCTION_PARSER(loop),
		INSTRUCTION_PARSER(null),		// endloop
		INSTRUCTION_PARSER(null),		// show
		INSTRUCTION_PARSER(inc),
		INSTRUCTION_PARSER(inc),		// dec
		INSTRUCTION_PARSER(set),
		INSTRUCTION_PARSER(put),
		INSTRUCTION_PARSER(call),
		INSTRUCTION_PARSER(null),		// wait
		INSTRUCTION_PARSER(animation),	// start
		INSTRUCTION_PARSER(sound),
		INSTRUCTION_PARSER(move),
		INSTRUCTION_PARSER(endscript)
	};

	uint i;
	for (i = 0; i < ARRAYSIZE(op0); i++)
		_instructionParsers.push_back(&op0[i]);


	static const OpcodeV1 op2[] = {
		WARNING_PARSER(unexpected),
		COMMAND_PARSER(flags),			// set
		COMMAND_PARSER(flags),			// clear
		COMMAND_PARSER(zone),		// start
		COMMAND_PARSER(zone),			// speak
		COMMAND_PARSER(zone),			// get
		COMMAND_PARSER(location),		// location
		COMMAND_PARSER(zone),			// open
		COMMAND_PARSER(zone),			// close
		COMMAND_PARSER(zone),			// on
		COMMAND_PARSER(zone),			// off
		COMMAND_PARSER(call),			// call
		COMMAND_PARSER(flags),			// toggle
		COMMAND_PARSER(drop),			// drop
		COMMAND_PARSER(simple),			// quit
		COMMAND_PARSER(move),			// move
		COMMAND_PARSER(zone),		// stop
		COMMAND_PARSER(endcommands),	// endcommands
		COMMAND_PARSER(endcommands)		// endzone
	};

	for (i = 0; i < ARRAYSIZE(op2); i++)
		_commandParsers.push_back(&op2[i]);


	static const OpcodeV1 op4[] = {
		WARNING_PARSER(unexpected),
		LOCATION_PARSER(endlocation),
		LOCATION_PARSER(location),
		LOCATION_PARSER(disk),
		LOCATION_PARSER(nodes),
		LOCATION_PARSER(zone),
		LOCATION_PARSER(animation),
		LOCATION_PARSER(localflags),
		LOCATION_PARSER(commands),
		LOCATION_PARSER(acommands),
		LOCATION_PARSER(flags),
		LOCATION_PARSER(comment),
		LOCATION_PARSER(endcomment),
		LOCATION_PARSER(sound),
		LOCATION_PARSER(music)
	};

	for (i = 0; i < ARRAYSIZE(op4); i++)
		_locationParsers.push_back(&op4[i]);

	static const OpcodeV1 op5[] = {
		WARNING_PARSER(unexpected),
		ZONE_PARSER(limits),
		ZONE_PARSER(moveto),
		ZONE_PARSER(type),
		ZONE_PARSER(commands),
		ZONE_PARSER(label),
		ZONE_PARSER(flags),
		ZONE_PARSER(endzone)
	};

	for (i = 0; i < ARRAYSIZE(op5); i++)
		_locationZoneParsers.push_back(&op5[i]);

	static const OpcodeV1 op6[] = {
		WARNING_PARSER(unexpected),
		ANIM_PARSER(script),
		ANIM_PARSER(commands),
		ANIM_PARSER(type),
		ANIM_PARSER(label),
		ANIM_PARSER(flags),
		ANIM_PARSER(file),
		ANIM_PARSER(position),
		ANIM_PARSER(moveto),
		ANIM_PARSER(endanimation)
	};

	for (i = 0; i < ARRAYSIZE(op6); i++)
		_locationAnimParsers.push_back(&op6[i]);

}

//
//	a comment can appear both at location and Zone levels
//	comments are displayed into rectangles on the screen
//
char *Parallaction_ns::parseComment(Script &script) {

	char			_tmp_comment[1000] = "\0";
	char *v194;

	do {
		char v190[400];
		v194 = script.readLine(v190, 400);

		v194[strlen(v194)-1] = '\0';
		if (!scumm_stricmp(v194, "endtext"))
			break;

		strcat(_tmp_comment, v194);
		strcat(_tmp_comment, " ");
	} while (true);

	v194 = strdup(_tmp_comment);
	_tmp_comment[0] = '\0';

	return v194;
}

DECLARE_ZONE_PARSER(null) {
	debugC(7, kDebugParser, "ZONE_PARSER(null) ");
}


DECLARE_ZONE_PARSER(endzone)  {
	debugC(7, kDebugParser, "ZONE_PARSER(endzone) ");

	_locationParser->popTables();
}

DECLARE_ZONE_PARSER(limits)  {
	debugC(7, kDebugParser, "ZONE_PARSER(limits) ");

	_locParseCtxt.z->_left = atoi(_tokens[1]);
	_locParseCtxt.z->_top = atoi(_tokens[2]);
	_locParseCtxt.z->_right = atoi(_tokens[3]);
	_locParseCtxt.z->_bottom = atoi(_tokens[4]);
}


DECLARE_ZONE_PARSER(moveto)  {
	debugC(7, kDebugParser, "ZONE_PARSER(moveto) ");

	_locParseCtxt.z->_moveTo.x = atoi(_tokens[1]);
	_locParseCtxt.z->_moveTo.y = atoi(_tokens[2]);
}


DECLARE_ZONE_PARSER(type)  {
	debugC(7, kDebugParser, "ZONE_PARSER(type) ");

	if (_tokens[2][0] != '\0') {
		_locParseCtxt.z->_type = (4 + _objectsNames->lookup(_tokens[2])) << 16;
	}
	int16 _si = _zoneTypeNames->lookup(_tokens[1]);
	if (_si != Table::notFound) {
		_locParseCtxt.z->_type |= 1 << (_si - 1);
		parseZoneTypeBlock(*_locParseCtxt.script, _locParseCtxt.z);
	}

	_locationParser->popTables();
}


DECLARE_ZONE_PARSER(commands)  {
	debugC(7, kDebugParser, "ZONE_PARSER(commands) ");

	 parseCommands(*_locParseCtxt.script, _locParseCtxt.z->_commands);
}


DECLARE_ZONE_PARSER(label)  {
	debugC(7, kDebugParser, "ZONE_PARSER(label) ");

//			printf("label: %s", _tokens[1]);
	_locParseCtxt.z->_label = _gfx->renderFloatingLabel(_labelFont, _tokens[1]);
}


DECLARE_ZONE_PARSER(flags)  {
	debugC(7, kDebugParser, "ZONE_PARSER(flags) ");

	uint16 _si = 1;

	do {
		char _al = _zoneFlagNames->lookup(_tokens[_si]);
		_si++;
		_locParseCtxt.z->_flags |= 1 << (_al - 1);
	} while (!scumm_stricmp(_tokens[_si++], "|"));
}

void Parallaction_ns::parseZone(Script &script, ZoneList &list, char *name) {
	debugC(5, kDebugParser, "parseZone(name: %s)", name);

	if (findZone(name)) {
		script.skip("endzone");
		return;
	}

	ZonePtr z(new Zone);

	strncpy(z->_name, name, ZONENAME_LENGTH);

	_locParseCtxt.z = z;
	_locParseCtxt.script = &script;

	list.push_front(z);

	_locationParser->pushTables(&_locationZoneParsers, _locationZoneStmt);

	return;
}




void Parallaction_ns::parseGetData(Script &script, ZonePtr z) {

	GetData *data = new GetData;

	do {

		if (!scumm_stricmp(_tokens[0], "file")) {

			bool visible = (z->_flags & kFlagsRemove) == 0;

			GfxObj *obj = _gfx->loadGet(_tokens[1]);
			obj->frame = 0;
			obj->x = z->_left;
			obj->y = z->_top;
			_gfx->showGfxObj(obj, visible);

			data->gfxobj = obj;
		}

		if (!scumm_stricmp(_tokens[0], "icon")) {
			data->_icon = 4 + _objectsNames->lookup(_tokens[1]);
		}

		script.readLineToken(true);
	} while (scumm_stricmp(_tokens[0], "endzone"));

	z->u.get = data;

}


void Parallaction_ns::parseExamineData(Script &script, ZonePtr z) {

	ExamineData *data = new ExamineData;

	do {

		if (!scumm_stricmp(_tokens[0], "file")) {
			data->_filename = strdup(_tokens[1]);
		}
		if (!scumm_stricmp(_tokens[0], "desc")) {
			data->_description = parseComment(script);
		}

		script.readLineToken(true);
	} while (scumm_stricmp(_tokens[0], "endzone"));

	z->u.examine = data;

}


void Parallaction_ns::parseDoorData(Script &script, ZonePtr z) {

	DoorData *data = new DoorData;

	do {

		if (!scumm_stricmp(_tokens[0], "slidetext")) {
			strcpy(_slideText[0], _tokens[1]);
//				printf("%s\t", _slideText[0]);
			strcpy(_slideText[1], _tokens[2]);
		}

		if (!scumm_stricmp(_tokens[0], "location")) {
			data->_location = strdup(_tokens[1]);
		}

		if (!scumm_stricmp(_tokens[0], "file")) {
//				printf("file: '%s'", _tokens[0]);

			uint16 frame = (z->_flags & kFlagsClosed ? 0 : 1);

			GfxObj *obj = _gfx->loadDoor(_tokens[1]);
			obj->frame = frame;
			obj->x = z->_left;
			obj->y = z->_top;
			_gfx->showGfxObj(obj, true);

			data->gfxobj = obj;
		}

		if (!scumm_stricmp(_tokens[0],	"startpos")) {
			data->_startPos.x = atoi(_tokens[1]);
			data->_startPos.y = atoi(_tokens[2]);
			data->_startFrame = atoi(_tokens[3]);
		}

		script.readLineToken(true);
	} while (scumm_stricmp(_tokens[0], "endzone"));

	z->u.door = data;

}


void Parallaction_ns::parseMergeData(Script &script, ZonePtr z) {

	MergeData *data = new MergeData;

	do {

		if (!scumm_stricmp(_tokens[0], "obj1")) {
			data->_obj1 = 4 + _objectsNames->lookup(_tokens[1]);
		}
		if (!scumm_stricmp(_tokens[0], "obj2")) {
			data->_obj2 = 4 + _objectsNames->lookup(_tokens[1]);
		}
		if (!scumm_stricmp(_tokens[0], "newobj")) {
			data->_obj3 = 4 + _objectsNames->lookup(_tokens[1]);
		}

		script.readLineToken(true);
	} while (scumm_stricmp(_tokens[0], "endzone"));

	z->u.merge = data;

}

void Parallaction_ns::parseHearData(Script &script, ZonePtr z) {

	HearData *data = new HearData;

	do {

		if (!scumm_stricmp(_tokens[0], "sound")) {
			strcpy(data->_name, _tokens[1]);
			data->_channel = atoi(_tokens[2]);
		}
		if (!scumm_stricmp(_tokens[0], "freq")) {
			data->_freq = atoi(_tokens[1]);
		}

		script.readLineToken(true);
	} while (scumm_stricmp(_tokens[0], "endzone"));

	z->u.hear = data;

}

void Parallaction_ns::parseSpeakData(Script &script, ZonePtr z) {

	SpeakData *data = new SpeakData;

	do {

		if (!scumm_stricmp(_tokens[0], "file")) {
			strcpy(data->_name, _tokens[1]);
		}
		if (!scumm_stricmp(_tokens[0], "Dialogue")) {
			data->_dialogue = parseDialogue(script);
		}

		script.readLineToken(true);
	} while (scumm_stricmp(_tokens[0], "endzone"));

	z->u.speak = data;

}


void Parallaction_ns::parseZoneTypeBlock(Script &script, ZonePtr z) {
	debugC(7, kDebugParser, "parseZoneTypeBlock(name: %s, type: %x)", z->_name, z->_type);

	switch (z->_type & 0xFFFF) {
	case kZoneExamine:	// examine Zone alloc
		parseExamineData(script, z);
		break;

	case kZoneDoor: // door Zone alloc
		parseDoorData(script, z);
		break;

	case kZoneGet:	// get Zone alloc
		parseGetData(script, z);
		break;

	case kZoneMerge:	// merge Zone alloc
		parseMergeData(script, z);
		break;

	case kZoneHear: // hear Zone alloc
		parseHearData(script, z);
		break;

	case kZoneSpeak:	// speak Zone alloc
		parseSpeakData(script, z);
		break;

	default:
		// eats up 'ENDZONE' line for unprocessed zone types
		script.readLineToken(true);
		break;
	}

	debugC(7, kDebugParser, "parseZoneTypeBlock() done");

	return;
}


} // namespace Parallaction