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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 "common/stdafx.h"
#include "parallaction/parallaction.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
DECLARE_COMMAND_PARSER(flags) {
createCommand(_lookup);
if (_globalTable->lookup(_tokens[1]) == Table::notFound) {
do {
char _al = _localFlagNames->lookup(_tokens[_cmdParseCtxt.nextToken]);
_cmdParseCtxt.nextToken++;
_cmdParseCtxt.cmd->u._flags |= 1 << (_al - 1);
} while (!scumm_stricmp(_tokens[_cmdParseCtxt.nextToken++], "|"));
_cmdParseCtxt.nextToken--;
} else {
_cmdParseCtxt.cmd->u._flags |= kFlagsGlobal;
do {
char _al = _globalTable->lookup(_tokens[1]);
_cmdParseCtxt.nextToken++;
_cmdParseCtxt.cmd->u._flags |= 1 << (_al - 1);
} while (!scumm_stricmp(_tokens[_cmdParseCtxt.nextToken++], "|"));
_cmdParseCtxt.nextToken--;
}
parseCommandFlags();
addCommand();
}
DECLARE_COMMAND_PARSER(animation) {
createCommand(_lookup);
_cmdParseCtxt.cmd->u._animation = findAnimation(_tokens[_cmdParseCtxt.nextToken]);
_cmdParseCtxt.nextToken++;
if (_cmdParseCtxt.cmd->u._animation == NULL) {
strcpy(_forwardedAnimationNames[_numForwards], _tokens[_cmdParseCtxt.nextToken-1]);
_forwardedCommands[_numForwards] = _cmdParseCtxt.cmd;
_numForwards++;
}
parseCommandFlags();
addCommand();
}
DECLARE_COMMAND_PARSER(zone) {
createCommand(_lookup);
_cmdParseCtxt.cmd->u._zone = findZone(_tokens[_cmdParseCtxt.nextToken]);
_cmdParseCtxt.nextToken++;
parseCommandFlags();
addCommand();
}
DECLARE_COMMAND_PARSER(location) {
createCommand(_lookup);
_cmdParseCtxt.cmd->u._string = (char*)malloc(strlen(_tokens[_cmdParseCtxt.nextToken])+1);
strcpy(_cmdParseCtxt.cmd->u._string, _tokens[_cmdParseCtxt.nextToken]);
_cmdParseCtxt.nextToken++;
parseCommandFlags();
addCommand();
}
DECLARE_COMMAND_PARSER(drop) {
createCommand(_lookup);
_cmdParseCtxt.cmd->u._object = _objectsNames->lookup(_tokens[_cmdParseCtxt.nextToken]);
_cmdParseCtxt.nextToken++;
parseCommandFlags();
addCommand();
}
DECLARE_COMMAND_PARSER(call) {
createCommand(_lookup);
_cmdParseCtxt.cmd->u._callable = _callableNames->lookup(_tokens[_cmdParseCtxt.nextToken]) - 1;
_cmdParseCtxt.nextToken++;
parseCommandFlags();
addCommand();
}
DECLARE_COMMAND_PARSER(null) {
}
DECLARE_COMMAND_PARSER(move) {
createCommand(_lookup);
_cmdParseCtxt.cmd->u._move._x = atoi(_tokens[_cmdParseCtxt.nextToken]);
_cmdParseCtxt.nextToken++;
_cmdParseCtxt.cmd->u._move._y = atoi(_tokens[_cmdParseCtxt.nextToken]);
_cmdParseCtxt.nextToken++;
parseCommandFlags();
addCommand();
}
DECLARE_COMMAND_PARSER(invalid) {
error("Can't parse unknown command '%s'", _tokens[0]);
}
DECLARE_COMMAND_PARSER(endcommands) {
_cmdParseCtxt.end = true;
}
void Parallaction::parseCommandFlags() {
int _si = _cmdParseCtxt.nextToken;
Command *cmd = _cmdParseCtxt.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]);
cmd->_flagsOff |= 1 << (_al - 1);
} else {
byte _al = _localFlagNames->lookup(_tokens[_si]);
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]);
cmd->_flagsOff |= 1 << (_al - 1);
} else {
byte _al = _globalTable->lookup(_tokens[_si]);
cmd->_flagsOn |= 1 << (_al - 1);
}
_si++;
} while (!scumm_stricmp(_tokens[_si++], "|"));
}
_si = _cmdParseCtxt.nextToken;
}
void Parallaction::addCommand() {
// FIXME: implement a proper parseCommands for BRA
if (getGameType() == GType_BRA)
delete _cmdParseCtxt.cmd;
else
_cmdParseCtxt.list->push_front(_cmdParseCtxt.cmd); // NOTE: command lists are written backwards in scripts
}
void Parallaction::createCommand(uint id) {
_cmdParseCtxt.nextToken = 1;
_cmdParseCtxt.cmd = new Command;
_cmdParseCtxt.cmd->_id = id;
}
void Parallaction::parseCommands(Script &script, CommandList& list) {
_cmdParseCtxt.list = &list;
_cmdParseCtxt.end = false;
do {
fillBuffers(script, true);
_lookup = _commandsNames->lookup(_tokens[0]);
(this->*_commandParsers[_lookup])();
} while (!_cmdParseCtxt.end);
}
DECLARE_COMMAND_OPCODE(invalid) {
error("Can't execute invalid command '%i'", _cmdRunCtxt.cmd->_id);
}
DECLARE_COMMAND_OPCODE(set) {
if (_cmdRunCtxt.cmd->u._flags & kFlagsGlobal) {
_cmdRunCtxt.cmd->u._flags &= ~kFlagsGlobal;
_commandFlags |= _cmdRunCtxt.cmd->u._flags;
} else {
_localFlags[_currentLocationIndex] |= _cmdRunCtxt.cmd->u._flags;
}
}
DECLARE_COMMAND_OPCODE(clear) {
if (_cmdRunCtxt.cmd->u._flags & kFlagsGlobal) {
_cmdRunCtxt.cmd->u._flags &= ~kFlagsGlobal;
_commandFlags &= ~_cmdRunCtxt.cmd->u._flags;
} else {
_localFlags[_currentLocationIndex] &= ~_cmdRunCtxt.cmd->u._flags;
}
}
DECLARE_COMMAND_OPCODE(start) {
_cmdRunCtxt.cmd->u._animation->_flags |= kFlagsActing;
}
DECLARE_COMMAND_OPCODE(speak) {
_activeZone = _cmdRunCtxt.cmd->u._zone;
}
DECLARE_COMMAND_OPCODE(get) {
_cmdRunCtxt.cmd->u._zone->_flags &= ~kFlagsFixed;
if (!runZone(_cmdRunCtxt.cmd->u._zone)) {
runCommands(_cmdRunCtxt.cmd->u._zone->_commands);
}
}
DECLARE_COMMAND_OPCODE(location) {
strcpy(_location._name, _cmdRunCtxt.cmd->u._string);
_engineFlags |= kEngineChangeLocation;
}
DECLARE_COMMAND_OPCODE(open) {
_cmdRunCtxt.cmd->u._zone->_flags &= ~kFlagsClosed;
if (_cmdRunCtxt.cmd->u._zone->u.door->_cnv) {
addJob(&jobToggleDoor, (void*)_cmdRunCtxt.cmd->u._zone, kPriority18 );
}
}
DECLARE_COMMAND_OPCODE(close) {
_cmdRunCtxt.cmd->u._zone->_flags |= kFlagsClosed;
if (_cmdRunCtxt.cmd->u._zone->u.door->_cnv) {
addJob(&jobToggleDoor, (void*)_cmdRunCtxt.cmd->u._zone, kPriority18 );
}
}
DECLARE_COMMAND_OPCODE(on) {
// WORKAROUND: the original DOS-based engine didn't check u->_zone before dereferencing
// the pointer to get structure members, thus leading to crashes in systems with memory
// protection.
// As a side note, the overwritten address is the 5th entry in the DOS interrupt table
// (print screen handler): this suggests that a system would hang when the print screen
// key is pressed after playing Nippon Safes, provided that this code path is taken.
if (_cmdRunCtxt.cmd->u._zone != NULL) {
_cmdRunCtxt.cmd->u._zone->_flags &= ~kFlagsRemove;
_cmdRunCtxt.cmd->u._zone->_flags |= kFlagsActive;
if ((_cmdRunCtxt.cmd->u._zone->_type & 0xFFFF) == kZoneGet) {
addJob(&jobDisplayDroppedItem, _cmdRunCtxt.cmd->u._zone, kPriority17 );
}
}
}
DECLARE_COMMAND_OPCODE(off) {
_cmdRunCtxt.cmd->u._zone->_flags |= kFlagsRemove;
}
DECLARE_COMMAND_OPCODE(call) {
callFunction(_cmdRunCtxt.cmd->u._callable, _cmdRunCtxt.z);
}
DECLARE_COMMAND_OPCODE(toggle) {
if (_cmdRunCtxt.cmd->u._flags & kFlagsGlobal) {
_cmdRunCtxt.cmd->u._flags &= ~kFlagsGlobal;
_commandFlags ^= _cmdRunCtxt.cmd->u._flags;
} else {
_localFlags[_currentLocationIndex] ^= _cmdRunCtxt.cmd->u._flags;
}
}
DECLARE_COMMAND_OPCODE(drop){
dropItem( _cmdRunCtxt.cmd->u._object );
}
DECLARE_COMMAND_OPCODE(quit) {
_engineFlags |= kEngineQuit;
}
DECLARE_COMMAND_OPCODE(move) {
if ((_char._ani._flags & kFlagsRemove) || (_char._ani._flags & kFlagsActive) == 0) {
return;
}
WalkNodeList *vC = _char._builder.buildPath(_cmdRunCtxt.cmd->u._move._x, _cmdRunCtxt.cmd->u._move._y);
addJob(&jobWalk, vC, kPriority19 );
_engineFlags |= kEngineWalking;
}
DECLARE_COMMAND_OPCODE(stop) {
_cmdRunCtxt.cmd->u._animation->_flags &= ~kFlagsActing;
}
void Parallaction::runCommands(CommandList& list, Zone *z) {
debugC(1, kDebugLocation, "runCommands");
CommandList::iterator it = list.begin();
for ( ; it != list.end(); it++) {
Command *cmd = *it;
uint32 v8 = _localFlags[_currentLocationIndex];
if (_engineFlags & kEngineQuit)
break;
if (cmd->_flagsOn & kFlagsGlobal) {
v8 = _commandFlags | kFlagsGlobal;
}
if ((cmd->_flagsOn & v8) != cmd->_flagsOn) continue;
if ((cmd->_flagsOff & ~v8) != cmd->_flagsOff) continue;
debugC(1, kDebugLocation, "runCommands: %s (on: %x, off: %x)", _commandsNamesRes[cmd->_id-1], cmd->_flagsOn, cmd->_flagsOff);
_cmdRunCtxt.z = z;
_cmdRunCtxt.cmd = cmd;
(this->*_commandOpcodes[cmd->_id])();
}
debugC(1, kDebugLocation, "runCommands completed");
return;
}
Command::Command() {
_id = 0;
_flagsOn = 0;
_flagsOff = 0;
}
Command::~Command() {
}
} // namespace Parallaction
|