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/* $Id$ */
/** @file waypoint_sl.cpp Code handling saving and loading of waypoints */
#include "../stdafx.h"
#include "../waypoint.h"
#include "../newgrf_station.h"
#include "../town.h"
#include "table/strings.h"
#include "saveload.h"
/**
* Update waypoint graphics id against saved GRFID/localidx.
* This is to ensure the chosen graphics are correct if GRF files are changed.
*/
void AfterLoadWaypoints()
{
Waypoint *wp;
FOR_ALL_WAYPOINTS(wp) {
uint i;
if (wp->grfid == 0) continue;
for (i = 0; i < GetNumCustomStations(STAT_CLASS_WAYP); i++) {
const StationSpec *statspec = GetCustomStationSpec(STAT_CLASS_WAYP, i);
if (statspec != NULL && statspec->grffile->grfid == wp->grfid && statspec->localidx == wp->localidx) {
wp->stat_id = i;
break;
}
}
}
}
/**
* Fix savegames which stored waypoints in their old format
*/
void FixOldWaypoints()
{
Waypoint *wp;
/* Convert the old 'town_or_string', to 'string' / 'town' / 'town_cn' */
FOR_ALL_WAYPOINTS(wp) {
wp->town_index = ClosestTownFromTile(wp->xy, UINT_MAX)->index;
wp->town_cn = 0;
if (wp->string & 0xC000) {
wp->town_cn = wp->string & 0x3F;
wp->string = STR_NULL;
}
}
}
static const SaveLoad _waypoint_desc[] = {
SLE_CONDVAR(Waypoint, xy, SLE_FILE_U16 | SLE_VAR_U32, 0, 5),
SLE_CONDVAR(Waypoint, xy, SLE_UINT32, 6, SL_MAX_VERSION),
SLE_CONDVAR(Waypoint, town_index, SLE_UINT16, 12, SL_MAX_VERSION),
SLE_CONDVAR(Waypoint, town_cn, SLE_FILE_U8 | SLE_VAR_U16, 12, 88),
SLE_CONDVAR(Waypoint, town_cn, SLE_UINT16, 89, SL_MAX_VERSION),
SLE_CONDVAR(Waypoint, string, SLE_STRINGID, 0, 83),
SLE_CONDSTR(Waypoint, name, SLE_STR, 0, 84, SL_MAX_VERSION),
SLE_VAR(Waypoint, deleted, SLE_UINT8),
SLE_CONDVAR(Waypoint, build_date, SLE_FILE_U16 | SLE_VAR_I32, 3, 30),
SLE_CONDVAR(Waypoint, build_date, SLE_INT32, 31, SL_MAX_VERSION),
SLE_CONDVAR(Waypoint, localidx, SLE_UINT8, 3, SL_MAX_VERSION),
SLE_CONDVAR(Waypoint, grfid, SLE_UINT32, 17, SL_MAX_VERSION),
SLE_CONDVAR(Waypoint, owner, SLE_UINT8, 101, SL_MAX_VERSION),
SLE_END()
};
static void Save_WAYP()
{
Waypoint *wp;
FOR_ALL_WAYPOINTS(wp) {
SlSetArrayIndex(wp->index);
SlObject(wp, _waypoint_desc);
}
}
static void Load_WAYP()
{
int index;
while ((index = SlIterateArray()) != -1) {
Waypoint *wp = new (index) Waypoint();
SlObject(wp, _waypoint_desc);
}
}
extern const ChunkHandler _waypoint_chunk_handlers[] = {
{ 'CHKP', Save_WAYP, Load_WAYP, CH_ARRAY | CH_LAST},
};
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