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OpenTTD/src/newgrf/newgrf_acte.cpp

69 lines
2.3 KiB
C++

/*
* 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 newgrf_acte.cpp NewGRF Action 0x0E handler. */
#include "../stdafx.h"
#include "../debug.h"
#include "newgrf_bytereader.h"
#include "newgrf_internal.h"
#include "table/strings.h"
#include "../safeguards.h"
/* Action 0x0E (GLS_SAFETYSCAN) */
static void SafeGRFInhibit(ByteReader &buf)
{
/* <0E> <num> <grfids...>
*
* B num Number of GRFIDs that follow
* D grfids GRFIDs of the files to deactivate */
uint8_t num = buf.ReadByte();
for (uint i = 0; i < num; i++) {
uint32_t grfid = buf.ReadDWord();
/* GRF is unsafe it if tries to deactivate other GRFs */
if (grfid != _cur.grfconfig->ident.grfid) {
GRFUnsafe(buf);
return;
}
}
}
/* Action 0x0E */
static void GRFInhibit(ByteReader &buf)
{
/* <0E> <num> <grfids...>
*
* B num Number of GRFIDs that follow
* D grfids GRFIDs of the files to deactivate */
uint8_t num = buf.ReadByte();
for (uint i = 0; i < num; i++) {
uint32_t grfid = buf.ReadDWord();
GRFConfig *file = GetGRFConfig(grfid);
/* Unset activation flag */
if (file != nullptr && file != _cur.grfconfig) {
GrfMsg(2, "GRFInhibit: Deactivating file '{}'", file->filename);
GRFError *error = DisableGrf(STR_NEWGRF_ERROR_FORCEFULLY_DISABLED, file);
error->data = _cur.grfconfig->GetName();
}
}
}
template <> void GrfActionHandler<0x0E>::FileScan(ByteReader &) { }
template <> void GrfActionHandler<0x0E>::SafetyScan(ByteReader &buf) { SafeGRFInhibit(buf); }
template <> void GrfActionHandler<0x0E>::LabelScan(ByteReader &) { }
template <> void GrfActionHandler<0x0E>::Init(ByteReader &buf) { GRFInhibit(buf); }
template <> void GrfActionHandler<0x0E>::Reserve(ByteReader &buf) { GRFInhibit(buf); }
template <> void GrfActionHandler<0x0E>::Activation(ByteReader &buf) { GRFInhibit(buf); }