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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.
*
*/
#include "director/lingo/lingo.h"
#include "director/lingo/lingo-gr.h"
namespace Director {
Lingo *g_lingo;
struct EventHandlerType {
LEvent handler;
const char *name;
} static const eventHanlerDescs[] = {
{ kEventPrepareMovie, "prepareMovie" },
{ kEventStartMovie, "startMovie" },
{ kEventStopMovie, "stopMovie" },
{ kEventNew, "newSprite" },
{ kEventBeginSprite, "beginSprite" },
{ kEventEndSprite, "endSprite" },
{ kEventEnterFrame, "enterFrame" },
{ kEventPrepareFrame, "prepareFrame" },
{ kEventIdle, "idle" },
{ kEventStepFrame, "stepFrame"},
{ kEventExitFrame, "exitFrame" },
{ kEventActivateWindow, "activateWindow" },
{ kEventDeactivateWindow, "deactivateWindow" },
{ kEventMoveWindow, "moveWindow" },
{ kEventResizeWindow, "resizeWindow" },
{ kEventOpenWindow, "openWindow" },
{ kEventCloseWindow, "closeWindow" },
{ kEventStart, "start" },
{ kEventKeyUp, "keyUp" },
{ kEventKeyDown, "keyDown" },
{ kEventMouseUp, "mouseUp" },
{ kEventMouseDown, "mouseDown" },
{ kEventRightMouseDown, "rightMouseDown" },
{ kEventRightMouseUp, "rightMouseUp" },
{ kEventMouseEnter, "mouseEnter" },
{ kEventMouseLeave, "mouseLeave" },
{ kEventMouseUpOutSide, "mouseUpOutSide" },
{ kEventMouseWithin, "mouseWithin" },
{ kEventNone, 0 },
};
Symbol::Symbol() {
name = NULL;
type = VOID;
u.s = NULL;
nargs = 0;
global = false;
}
Lingo::Lingo(DirectorEngine *vm) : _vm(vm) {
g_lingo = this;
for (const EventHandlerType *t = &eventHanlerDescs[0]; t->handler != kEventNone; ++t)
_eventHandlerTypes[t->handler] = t->name;
initBuiltIns();
initTheEntities();
_currentScript = 0;
_currentScriptType = kMovieScript;
_pc = 0;
_returning = false;
_indef = false;
_linenumber = _colnumber = 0;
_hadError = false;
_floatPrecision = 4;
_floatPrecisionFormat = "%.4f";
warning("Lingo Inited");
}
Lingo::~Lingo() {
}
void Lingo::addCode(const char *code, ScriptType type, uint16 id) {
debug(2, "Add code \"%s\" for type %d with id %d", code, type, id);
if (_scripts[type].contains(id)) {
delete _scripts[type][id];
}
_currentScript = new ScriptData;
_currentScriptType = type;
_scripts[type][id] = _currentScript;
_linenumber = _colnumber = 1;
_hadError = false;
const char *begin, *end;
// macros have conflicting grammar. Thus we ease life for the parser.
if ((begin = strstr(code, "\nmacro "))) {
bool first = true;
begin += 1;
while ((end = strstr(begin, "\nmacro "))) {
if (first) {
begin = code;
first = false;
}
Common::String chunk(begin, end + 1);
debug(2, "Code chunk\n#####\n%s#####", chunk.c_str());
parse(chunk.c_str());
_currentScript->clear();
begin = end + 1;
}
_hadError = true; // HACK: This is for preventing test execution
parse(begin);
} else {
parse(code);
code1(STOP);
}
if (_currentScript->size() && !_hadError)
Common::hexdump((byte *)&_currentScript->front(), _currentScript->size() * sizeof(inst));
}
void Lingo::executeScript(ScriptType type, uint16 id) {
if (!_scripts[type].contains(id)) {
warning("Request to execute non-existant script type %d id %d", type, id);
return;
}
debug(2, "Executing script type: %d, id: %d", type, id);
_currentScript = _scripts[type][id];
_pc = 0;
_returning = false;
_localvars = new SymbolHash;
execute(_pc);
cleanLocalVars();
}
void Lingo::processEvent(LEvent event, int entityId) {
if (!_eventHandlerTypes.contains(event))
error("processEvent: Unknown event %d for entity %d", event, entityId);
debug(2, "processEvent(%s) for %d", _eventHandlerTypes[event], entityId);
}
int Lingo::alignTypes(Datum &d1, Datum &d2) {
int opType = INT;
if (d1.type == FLOAT || d2.type == FLOAT) {
opType = FLOAT;
d1.toFloat();
d2.toFloat();
}
return opType;
}
int Datum::toInt() {
switch (type) {
case INT:
// no-op
break;
case FLOAT:
u.i = (int)u.f;
type = INT;
break;
default:
warning("Incorrect operation toInt() for type: %s", type2str());
}
return u.i;
}
double Datum::toFloat() {
switch (type) {
case INT:
u.f = (double)u.i;
type = FLOAT;
break;
case FLOAT:
// no-op
break;
default:
warning("Incorrect operation toFloat() for type: %s", type2str());
}
return u.f;
}
Common::String *Datum::toString() {
Common::String *s = new Common::String;
switch (type) {
case INT:
s->format("%d", u.i);
break;
case FLOAT:
s->format(g_lingo->_floatPrecisionFormat.c_str(), u.f);
break;
case STRING:
delete s;
s = u.s;
break;
default:
warning("Incorrect operation toString() for type: %s", type2str());
}
u.s = s;
type = STRING;
return u.s;
}
const char *Datum::type2str() {
static char res[20];
switch (type) {
case INT:
return "INT";
case FLOAT:
return "FLOAT";
case STRING:
return "STRING";
case CASTREF:
return "CASTREF";
case VOID:
return "VOID";
default:
snprintf(res, 20, "-- (%d) --", type);
return res;
}
}
// This is table for built-in Macintosh font lowercasing.
// '.' means that the symbol should be not changed, rest
// of the symbols are stripping the diacritics
// The table starts from 0x80
//
// TODO: Check it for correctness.
static char lowerCaseConvert[] =
"aacenoua" // 80
"aaaaacee" // 88
"eeiiiino" // 90
"oooouuuu" // 98
"........" // a0
".......o" // a8
"........" // b0
".......o" // b8
"........" // c0
".. aao.." // c8
"--.....y";// d0-d8
Common::String *Lingo::toLowercaseMac(Common::String *s) {
Common::String *res = new Common::String;
const unsigned char *p = (const unsigned char *)s->c_str();
while (*p) {
if (*p >= 0x80 && *p <= 0xd8) {
if (lowerCaseConvert[*p - 0x80] != '.')
*res += lowerCaseConvert[*p - 0x80];
else
*res += *p;
} else if (*p < 0x80) {
*res += tolower(*p);
} else {
warning("Unacceptable symbol in toLowercaseMac: %c", *p);
*res += *p;
}
p++;
}
return res;
}
void Lingo::runTests() {
Common::File inFile;
Common::ArchiveMemberList fileList;
SearchMan.listMatchingMembers(fileList, "*.lingo");
int counter = 1;
for (Common::ArchiveMemberList::iterator it = fileList.begin(); it != fileList.end(); ++it) {
Common::ArchiveMember const &m = **it;
Common::SeekableReadStream *const stream = m.createReadStream();
if (stream) {
uint size = stream->size();
char *script = (char *)calloc(size + 1, 1);
stream->read(script, size);
warning("Compiling file %s of size %d, id: %d", m.getName().c_str(), size, counter);
_hadError = false;
addCode(script, kMovieScript, counter);
if (!_hadError)
executeScript(kMovieScript, counter);
else
warning("Skipping execution");
free(script);
counter++;
}
inFile.close();
}
}
} // End of namespace Director
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