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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.
*
*/
// Heavily inspired by hoc
// Copyright (C) AT&T 1995
// All Rights Reserved
//
// Permission to use, copy, modify, and distribute this software and
// its documentation for any purpose and without fee is hereby
// granted, provided that the above copyright notice appear in all
// copies and that both that the copyright notice and this
// permission notice and warranty disclaimer appear in supporting
// documentation, and that the name of AT&T or any of its entities
// not be used in advertising or publicity pertaining to
// distribution of the software without specific, written prior
// permission.
//
// AT&T DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
// INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
// IN NO EVENT SHALL AT&T OR ANY OF ITS ENTITIES BE LIABLE FOR ANY
// SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
// IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
// ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
// THIS SOFTWARE.
#include "engines/director/lingo/lingo.h"
#include "common/file.h"
#include "audio/decoders/wave.h"
#include "director/lingo/lingo-gr.h"
namespace Director {
void Lingo::execute(int pc) {
for(_pc = pc; (*_currentScript)[_pc] != STOP && !_returning;) {
for (int i = 0; i < _stack.size(); i++) {
debugN(5, "%d ", _stack[i].u.i);
}
debug(5, "");
_pc++;
(*((*_currentScript)[_pc - 1]))();
}
}
Symbol *Lingo::lookupVar(const char *name) {
Symbol *sym;
if (!_vars.contains(name)) { // Create variable if it was not defined
sym = new Symbol;
sym->name = (char *)calloc(strlen(name) + 1, 1);
Common::strlcpy(sym->name, name, strlen(name) + 1);
sym->type = VOID;
sym->u.val = 0;
_vars[name] = sym;
} else {
sym = g_lingo->_vars[name];
}
return sym;
}
void Lingo::define(Common::String &name, int start, int nargs) {
debug(3, "define(\"%s\", %d, %d, %d)", name.c_str(), start, _currentScript->size() - 1, nargs);
Symbol *sym;
if (!_handlers.contains(name)) { // Create variable if it was not defined
sym = new Symbol;
sym->name = (char *)calloc(name.size() + 1, 1);
Common::strlcpy(sym->name, name.c_str(), name.size() + 1);
sym->type = HANDLER;
_handlers[name] = sym;
} else {
sym = g_lingo->_handlers[name];
warning("Redefining handler '%s'", name.c_str());
delete sym->u.defn;
}
sym->u.defn = new ScriptData(&(*_currentScript)[start], _currentScript->size() - start + 1);
sym->nargs = nargs;
}
void Lingo::codeArg(Common::String *s) {
_argstack.push_back(s);
}
void Lingo::codeArgStore() {
while (true) {
if (_argstack.empty()) {
warning("Arg stack underflow");
break;
}
Common::String *arg = _argstack.back();
_argstack.pop_back();
if (arg->equals("<args>")) {
delete arg;
break;
}
code1(c_varpush);
codeString(arg->c_str());
code1(c_assign);
code1(c_xpop);
delete arg;
}
}
int Lingo::codeId(Common::String &s) {
return codeId_(s);
}
int Lingo::codeId_(Common::String &name) {
int ret;
ret = code1(c_varpush);
codeString(name.c_str());
code1(c_eval);
return ret;
}
}
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