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/* $Id$ */
/*
* This file is part of OpenTTD.
* OpenTTD 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, version 2.
* OpenTTD 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 OpenTTD. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file squirrel_std.cpp Implements the Squirrel Standard Function class */
#include <squirrel.h>
#include "../stdafx.h"
#include "../debug.h"
#include "squirrel.hpp"
#include "squirrel_std.hpp"
#include "../core/alloc_func.hpp"
#include "../core/math_func.hpp"
/* abs() is normally defined to myabs(), which we don't want in this file */
#undef abs
SQInteger SquirrelStd::abs(HSQUIRRELVM vm)
{
SQInteger tmp;
sq_getinteger(vm, 2, &tmp);
sq_pushinteger(vm, ::abs(tmp));
return 1;
}
SQInteger SquirrelStd::min(HSQUIRRELVM vm)
{
SQInteger tmp1, tmp2;
sq_getinteger(vm, 2, &tmp1);
sq_getinteger(vm, 3, &tmp2);
sq_pushinteger(vm, ::min(tmp1, tmp2));
return 1;
}
SQInteger SquirrelStd::max(HSQUIRRELVM vm)
{
SQInteger tmp1, tmp2;
sq_getinteger(vm, 2, &tmp1);
sq_getinteger(vm, 3, &tmp2);
sq_pushinteger(vm, ::max(tmp1, tmp2));
return 1;
}
SQInteger SquirrelStd::require(HSQUIRRELVM vm)
{
SQInteger top = sq_gettop(vm);
const SQChar *filename;
SQChar *real_filename;
sq_getstring(vm, 2, &filename);
/* Get the script-name of the current file, so we can work relative from it */
SQStackInfos si;
sq_stackinfos(vm, 1, &si);
if (si.source == NULL) {
DEBUG(misc, 0, "[squirrel] Couldn't detect the script-name of the 'require'-caller; this should never happen!");
return SQ_ERROR;
}
real_filename = scstrdup(si.source);
/* Keep the dir, remove the rest */
SQChar *s = scstrrchr(real_filename, PATHSEPCHAR);
if (s != NULL) {
/* Keep the PATHSEPCHAR there, remove the rest */
s++;
*s = '\0';
}
/* And now we concat, so we are relative from the current script
* First, we have to make sure we have enough space for the full path */
real_filename = ReallocT(real_filename, scstrlen(real_filename) + scstrlen(filename) + 1);
scstrcat(real_filename, filename);
/* Tars dislike opening files with '/' on Windows.. so convert it to '\\' ;) */
char *filen = strdup(FS2OTTD(real_filename));
#if (PATHSEPCHAR != '/')
for (char *n = filen; *n != '\0'; n++) if (*n == '/') *n = PATHSEPCHAR;
#endif
bool ret = Squirrel::LoadScript(vm, filen);
/* Reset the top, so the stack stays correct */
sq_settop(vm, top);
free(real_filename);
free(filen);
return ret ? 0 : SQ_ERROR;
}
SQInteger SquirrelStd::notifyallexceptions(HSQUIRRELVM vm)
{
SQBool b;
if (sq_gettop(vm) >= 1) {
if (SQ_SUCCEEDED(sq_getbool(vm, -1, &b))) {
sq_notifyallexceptions(vm, b);
return 0;
}
}
return SQ_ERROR;
}
void squirrel_register_global_std(Squirrel *engine)
{
/* We don't use squirrel_helper here, as we want to register to the global
* scope and not to a class. */
engine->AddMethod("require", &SquirrelStd::require, 2, ".s");
engine->AddMethod("notifyallexceptions", &SquirrelStd::notifyallexceptions, 2, ".b");
}
void squirrel_register_std(Squirrel *engine)
{
/* We don't use squirrel_helper here, as we want to register to the global
* scope and not to a class. */
engine->AddMethod("abs", &SquirrelStd::abs, 2, ".i");
engine->AddMethod("min", &SquirrelStd::min, 3, ".ii");
engine->AddMethod("max", &SquirrelStd::max, 3, ".ii");
}
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