tron@2186: /* $Id$ */
tron@2186: 
rubidium@9111: /** @file waypoint.cpp Handling of waypoints. */
belugas@6432: 
truelight@1542: #include "stdafx.h"
Darkvater@1891: #include "openttd.h"
truelight@1542: 
rubidium@8116: #include "command_func.h"
maedhros@6453: #include "landscape.h"
rubidium@8784: #include "order_func.h"
tron@3101: #include "rail_map.h"
rubidium@8138: #include "rail.h"
celestar@5385: #include "bridge_map.h"
truelight@1542: #include "saveload.h"
rubidium@8785: #include "station_base.h"
truelight@1542: #include "town.h"
truelight@1542: #include "waypoint.h"
tron@2159: #include "variables.h"
KUDr@3900: #include "yapf/yapf.h"
peter1138@6451: #include "newgrf.h"
rubidium@8114: #include "strings_func.h"
rubidium@8225: #include "gfx_func.h"
rubidium@8131: #include "functions.h"
rubidium@8131: #include "window_func.h"
rubidium@8138: #include "economy_func.h"
rubidium@8140: #include "date_func.h"
rubidium@8144: #include "vehicle_func.h"
rubidium@8144: #include "vehicle_base.h"
rubidium@8214: #include "string_func.h"
smatz@8238: #include "signal_func.h"
rubidium@10208: #include "company_func.h"
rubidium@8270: #include "settings_type.h"
rubidium@8787: #include "newgrf_station.h"
smatz@8847: #include "oldpool_func.h"
rubidium@9129: #include "viewport_func.h"
rubidium@9815: #include "pbs.h"
rubidium@9815: #include "train.h"
truelight@1542: 
rubidium@8264: #include "table/strings.h"
smatz@8238: 
rubidium@7381: DEFINE_OLD_POOL_GENERIC(Waypoint, Waypoint)
truelight@1542: 
truelight@1542: 
belugas@6432: /**
belugas@6432:  * Update the sign for the waypoint
belugas@6432:  * @param wp Waypoint to update sign */
tron@2817: static void UpdateWaypointSign(Waypoint* wp)
truelight@1542: {
celestar@3422: 	Point pt = RemapCoords2(TileX(wp->xy) * TILE_SIZE, TileY(wp->xy) * TILE_SIZE);
truelight@1542: 	SetDParam(0, wp->index);
truelight@1542: 	UpdateViewportSignPos(&wp->sign, pt.x, pt.y - 0x20, STR_WAYPOINT_VIEWPORT);
truelight@1542: }
truelight@1542: 
belugas@6432: /**
belugas@6432:  * Redraw the sign of a waypoint
belugas@6432:  * @param wp Waypoint to redraw sign */
tron@2752: static void RedrawWaypointSign(const Waypoint* wp)
truelight@1542: {
truelight@1542: 	MarkAllViewportsDirty(
truelight@1542: 		wp->sign.left - 6,
truelight@1542: 		wp->sign.top,
truelight@1542: 		wp->sign.left + (wp->sign.width_1 << 2) + 12,
truelight@1542: 		wp->sign.top + 48);
truelight@1542: }
truelight@1542: 
belugas@6432: /**
belugas@6432:  * Update all signs
belugas@6432:  */
rubidium@6247: void UpdateAllWaypointSigns()
truelight@1542: {
truelight@1542: 	Waypoint *wp;
truelight@1542: 
truelight@1542: 	FOR_ALL_WAYPOINTS(wp) {
truelight@4346: 		UpdateWaypointSign(wp);
truelight@1542: 	}
truelight@1542: }
truelight@1542: 
belugas@6432: /**
belugas@6432:  * Set the default name for a waypoint
belugas@6432:  * @param wp Waypoint to work on
belugas@6432:  */
tron@2752: static void MakeDefaultWaypointName(Waypoint* wp)
truelight@1542: {
smatz@8579: 	uint32 used = 0; // bitmap of used waypoint numbers, sliding window with 'next' as base
smatz@8579: 	uint32 next = 0; // first waypoint number in the bitmap
smatz@8579: 	WaypointID idx = 0; // index where we will stop
truelight@1542: 
rubidium@10236: 	wp->town_index = ClosestTownFromTile(wp->xy, UINT_MAX)->index;
truelight@1542: 
smatz@8579: 	/* Find first unused waypoint number belonging to this town. This can never fail,
smatz@8579: 	 * as long as there can be at most 65535 waypoints in total.
smatz@8579: 	 *
smatz@8579: 	 * This does 'n * m' search, but with 32bit 'used' bitmap, it needs at most 'n * (1 + ceil(m / 32))'
smatz@8579: 	 * steps (n - number of waypoints in pool, m - number of waypoints near this town).
smatz@8579: 	 * Usually, it needs only 'n' steps.
smatz@8579: 	 *
smatz@8579: 	 * If it wasn't using 'used' and 'idx', it would just search for increasing 'next',
smatz@8579: 	 * but this way it is faster */
truelight@1542: 
smatz@8579: 	WaypointID cid = 0; // current index, goes to GetWaypointPoolSize()-1, then wraps to 0
smatz@8579: 	do {
smatz@8579: 		Waypoint *lwp = GetWaypoint(cid);
truelight@1542: 
smatz@8579: 		/* check only valid waypoints... */
rubidium@8970: 		if (lwp->IsValid() && wp != lwp) {
smatz@8579: 			/* only waypoints with 'generic' name within the same city */
smatz@8579: 			if (lwp->name == NULL && lwp->town_index == wp->town_index) {
smatz@8579: 				/* if lwp->town_cn < next, uint will overflow to '+inf' */
smatz@8579: 				uint i = (uint)lwp->town_cn - next;
truelight@1542: 
smatz@8579: 				if (i < 32) {
smatz@8579: 					SetBit(used, i); // update bitmap
smatz@8579: 					if (i == 0) {
smatz@8579: 						/* shift bitmap while the lowest bit is '1';
smatz@8579: 						 * increase the base of the bitmap too */
smatz@8579: 						do {
smatz@8579: 							used >>= 1;
smatz@8579: 							next++;
smatz@8579: 						} while (HasBit(used, 0));
smatz@8579: 						/* when we are at 'idx' again at end of the loop and
smatz@8579: 						 * 'next' hasn't changed, then no waypoint had town_cn == next,
smatz@8579: 						 * so we can safely use it */
smatz@8579: 						idx = cid;
smatz@8579: 					}
smatz@8579: 				}
smatz@8579: 			}
smatz@8579: 		}
smatz@8579: 
smatz@8579: 		cid++;
smatz@8579: 		if (cid == GetWaypointPoolSize()) cid = 0; // wrap to zero...
smatz@8579: 	} while (cid != idx);
smatz@8579: 
smatz@8579: 	wp->town_cn = (uint16)next; // set index...
smatz@8579: 	wp->name = NULL; // ... and use generic name
truelight@1542: }
truelight@1542: 
belugas@6432: /**
belugas@6432:  * Find a deleted waypoint close to a tile.
belugas@6432:  * @param tile to search from
belugas@6432:  */
tron@1977: static Waypoint *FindDeletedWaypointCloseTo(TileIndex tile)
truelight@1542: {
truelight@1542: 	Waypoint *wp, *best = NULL;
tron@4077: 	uint thres = 8;
truelight@1542: 
truelight@1542: 	FOR_ALL_WAYPOINTS(wp) {
rubidium@10207: 		if (wp->deleted && (wp->owner == OWNER_NONE || wp->owner == _current_company)) {
tron@4077: 			uint cur_dist = DistanceManhattan(tile, wp->xy);
tron@4077: 
truelight@1542: 			if (cur_dist < thres) {
truelight@1542: 				thres = cur_dist;
truelight@1542: 				best = wp;
truelight@1542: 			}
truelight@1542: 		}
truelight@1542: 	}
truelight@1542: 
truelight@1542: 	return best;
truelight@1542: }
truelight@1542: 
peter1138@2670: /**
peter1138@2670:  * Update waypoint graphics id against saved GRFID/localidx.
peter1138@2670:  * This is to ensure the chosen graphics are correct if GRF files are changed.
peter1138@2670:  */
rubidium@6247: void AfterLoadWaypoints()
peter1138@2670: {
peter1138@2670: 	Waypoint *wp;
peter1138@2670: 
peter1138@2670: 	FOR_ALL_WAYPOINTS(wp) {
peter1138@2670: 		uint i;
peter1138@2670: 
peter1138@2670: 		if (wp->grfid == 0) continue;
peter1138@2670: 
peter1138@2670: 		for (i = 0; i < GetNumCustomStations(STAT_CLASS_WAYP); i++) {
belugas@3676: 			const StationSpec *statspec = GetCustomStationSpec(STAT_CLASS_WAYP, i);
peter1138@6451: 			if (statspec != NULL && statspec->grffile->grfid == wp->grfid && statspec->localidx == wp->localidx) {
peter1138@2670: 				wp->stat_id = i;
peter1138@2670: 				break;
peter1138@2670: 			}
peter1138@2670: 		}
peter1138@2670: 	}
peter1138@2670: }
peter1138@2670: 
Darkvater@1782: /** Convert existing rail to waypoint. Eg build a waypoint station over
Darkvater@1782:  * piece of rail
tron@3491:  * @param tile tile where waypoint will be built
belugas@6432:  * @param flags type of operation
peter1138@2625:  * @param p1 graphics for waypoint type, 0 indicates standard graphics
Darkvater@1782:  * @param p2 unused
celestar@2085:  *
celestar@2085:  * @todo When checking for the tile slope,
celestar@2085:  * distingush between "Flat land required" and "land sloped in wrong direction"
Darkvater@1782:  */
rubidium@6943: CommandCost CmdBuildTrainWaypoint(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
truelight@1542: {
truelight@1542: 	Waypoint *wp;
tron@3636: 	Slope tileh;
tron@3101: 	Axis axis;
truelight@1542: 
Darkvater@1782: 	/* if custom gfx are used, make sure it is within bounds */
peter1138@2625: 	if (p1 >= GetNumCustomStations(STAT_CLASS_WAYP)) return CMD_ERROR;
Darkvater@1782: 
tron@3267: 	if (!IsTileType(tile, MP_RAILWAY) ||
rubidium@3792: 			GetRailTileType(tile) != RAIL_TILE_NORMAL || (
tron@3267: 				(axis = AXIS_X, GetTrackBits(tile) != TRACK_BIT_X) &&
tron@3267: 				(axis = AXIS_Y, GetTrackBits(tile) != TRACK_BIT_Y)
tron@3101: 			)) {
truelight@1542: 		return_cmd_error(STR_1005_NO_SUITABLE_RAILROAD_TRACK);
tron@3101: 	}
truelight@1542: 
belugas@9978: 	Owner owner = GetTileOwner(tile);
belugas@9978: 	if (!CheckOwnership(owner)) return CMD_ERROR;
rubidium@7758: 	if (!EnsureNoVehicleOnGround(tile)) return CMD_ERROR;
truelight@1542: 
truelight@1542: 	tileh = GetTileSlope(tile, NULL);
tron@4077: 	if (tileh != SLOPE_FLAT &&
rubidium@9413: 			(!_settings_game.construction.build_on_slopes || IsSteepSlope(tileh) || !(tileh & (0x3 << axis)) || !(tileh & ~(0x3 << axis)))) {
tron@4077: 		return_cmd_error(STR_0007_FLAT_LAND_REQUIRED);
truelight@1542: 	}
truelight@1542: 
celestar@5385: 	if (MayHaveBridgeAbove(tile) && IsBridgeAbove(tile)) return_cmd_error(STR_5007_MUST_DEMOLISH_BRIDGE_FIRST);
celestar@5385: 
truelight@1542: 	/* Check if there is an already existing, deleted, waypoint close to us that we can reuse. */
truelight@1542: 	wp = FindDeletedWaypointCloseTo(tile);
rubidium@9036: 	if (wp == NULL && !Waypoint::CanAllocateItem()) return CMD_ERROR;
rubidium@7381: 
rubidium@9036: 	if (flags & DC_EXEC) {
rubidium@9036: 		if (wp == NULL) {
rubidium@9036: 			wp = new Waypoint(tile);
rubidium@7704: 
rubidium@9036: 			wp->town_index = INVALID_TOWN;
rubidium@9036: 			wp->name = NULL;
rubidium@9036: 			wp->town_cn = 0;
rubidium@9036: 		} else {
rubidium@9036: 			/* Move existing (recently deleted) waypoint to the new location */
rubidium@9036: 
rubidium@9036: 			/* First we update the destination for all vehicles that
rubidium@9036: 			* have the old waypoint in their orders. */
rubidium@9036: 			Vehicle *v;
rubidium@9036: 			FOR_ALL_VEHICLES(v) {
rubidium@9036: 				if (v->type == VEH_TRAIN &&
rubidium@9036: 						v->First() == v &&
rubidium@9036: 						v->current_order.IsType(OT_GOTO_WAYPOINT) &&
rubidium@9036: 						v->dest_tile == wp->xy) {
rubidium@9036: 					v->dest_tile = tile;
rubidium@9036: 				}
rubidium@7704: 			}
rubidium@9036: 
rubidium@9036: 			RedrawWaypointSign(wp);
rubidium@9036: 			wp->xy = tile;
frosch@9986: 			InvalidateWindowData(WC_WAYPOINT_VIEW, wp->index);
rubidium@7704: 		}
frosch@9988: 		wp->owner = owner;
rubidium@7704: 
tron@4051: 		const StationSpec* statspec;
tron@4051: 
rubidium@9789: 		bool reserved = HasBit(GetTrackReservation(tile), AxisToTrack(axis));
belugas@9978: 		MakeRailWaypoint(tile, owner, axis, GetRailType(tile), wp->index);
rubidium@9789: 		SetDepotWaypointReservation(tile, reserved);
tron@3101: 		MarkTileDirtyByTile(tile);
peter1138@2670: 
tron@4051: 		statspec = GetCustomStationSpec(STAT_CLASS_WAYP, p1);
peter1138@2670: 
belugas@3676: 		if (statspec != NULL) {
tron@4051: 			wp->stat_id = p1;
peter1138@6451: 			wp->grfid = statspec->grffile->grfid;
belugas@3676: 			wp->localidx = statspec->localidx;
peter1138@2670: 		} else {
belugas@6432: 			/* Specified custom graphics do not exist, so use default. */
peter1138@2670: 			wp->stat_id = 0;
peter1138@2670: 			wp->grfid = 0;
peter1138@2670: 			wp->localidx = 0;
truelight@1542: 		}
peter1138@2670: 
truelight@1542: 		wp->deleted = 0;
truelight@1542: 		wp->build_date = _date;
truelight@1542: 
glx@8501: 		if (wp->town_index == INVALID_TOWN) MakeDefaultWaypointName(wp);
truelight@1542: 
truelight@1542: 		UpdateWaypointSign(wp);
truelight@1542: 		RedrawWaypointSign(wp);
KUDr@5348: 		YapfNotifyTrackLayoutChange(tile, AxisToTrack(axis));
truelight@1542: 	}
truelight@1542: 
rubidium@8230: 	return CommandCost(EXPENSES_CONSTRUCTION, _price.build_train_depot);
truelight@1542: }
truelight@1542: 
belugas@6432: /**
belugas@6432:  * Daily loop for waypoints
belugas@6432:  */
rubidium@6247: void WaypointsDailyLoop()
truelight@1542: {
truelight@1542: 	Waypoint *wp;
truelight@1542: 
truelight@1542: 	/* Check if we need to delete a waypoint */
truelight@1542: 	FOR_ALL_WAYPOINTS(wp) {
smatz@10089: 		if (wp->deleted != 0 && --wp->deleted == 0) delete wp;
truelight@1542: 	}
truelight@1542: }
truelight@1542: 
belugas@6432: /**
belugas@6432:  * Remove a waypoint
belugas@6432:  * @param tile from which to remove waypoint
belugas@6432:  * @param flags type of operation
belugas@6432:  * @param justremove will indicate if it is removed from rail or if rails are removed too
belugas@6432:  * @return cost of operation or error
belugas@6432:  */
rubidium@6943: CommandCost RemoveTrainWaypoint(TileIndex tile, uint32 flags, bool justremove)
truelight@1542: {
truelight@1542: 	Waypoint *wp;
truelight@1542: 
truelight@1542: 	/* Make sure it's a waypoint */
smatz@10099: 	if (!IsRailWaypointTile(tile) ||
rubidium@10207: 			(!CheckTileOwnership(tile) && _current_company != OWNER_WATER) ||
rubidium@7758: 			!EnsureNoVehicleOnGround(tile)) {
truelight@1542: 		return CMD_ERROR;
tron@4077: 	}
truelight@1542: 
truelight@1542: 	if (flags & DC_EXEC) {
KUDr@5348: 		Track track = GetRailWaypointTrack(tile);
truelight@1542: 		wp = GetWaypointByTile(tile);
truelight@1542: 
truelight@1542: 		wp->deleted = 30; // let it live for this many days before we do the actual deletion.
truelight@1542: 		RedrawWaypointSign(wp);
truelight@1542: 
rubidium@9815: 		Vehicle *v = NULL;
truelight@1542: 		if (justremove) {
rubidium@9789: 			TrackBits tracks = GetRailWaypointBits(tile);
rubidium@9789: 			bool reserved = GetDepotWaypointReservation(tile);
belugas@9978: 			MakeRailNormal(tile, wp->owner, tracks, GetRailType(tile));
rubidium@9789: 			if (reserved) SetTrackReservation(tile, tracks);
tron@3101: 			MarkTileDirtyByTile(tile);
truelight@1542: 		} else {
rubidium@9815: 			if (GetDepotWaypointReservation(tile)) {
rubidium@9815: 				v = GetTrainForReservation(tile, track);
rubidium@9815: 				if (v != NULL) FreeTrainTrackReservation(v);
rubidium@9815: 			}
truelight@1542: 			DoClearSquare(tile);
belugas@9978: 			AddTrackToSignalBuffer(tile, track, wp->owner);
truelight@1542: 		}
KUDr@5348: 		YapfNotifyTrackLayoutChange(tile, track);
rubidium@9815: 		if (v != NULL) TryPathReserve(v, true);
truelight@1542: 	}
truelight@1542: 
rubidium@8230: 	return CommandCost(EXPENSES_CONSTRUCTION, _price.remove_train_depot);
truelight@1542: }
truelight@1542: 
belugas@6432: /**
belugas@6432:  * Delete a waypoint
tron@3491:  * @param tile tile where waypoint is to be deleted
belugas@6432:  * @param flags type of operation
Darkvater@1782:  * @param p1 unused
Darkvater@1782:  * @param p2 unused
belugas@6432:  * @return cost of operation or error
Darkvater@1782:  */
rubidium@6943: CommandCost CmdRemoveTrainWaypoint(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
truelight@1542: {
truelight@1542: 	return RemoveTrainWaypoint(tile, flags, true);
truelight@1542: }
truelight@1542: 
peter1138@7097: static bool IsUniqueWaypointName(const char *name)
peter1138@7097: {
peter1138@7097: 	const Waypoint *wp;
peter1138@7097: 	char buf[512];
peter1138@7097: 
peter1138@7097: 	FOR_ALL_WAYPOINTS(wp) {
peter1138@7097: 		SetDParam(0, wp->index);
peter1138@7097: 		GetString(buf, STR_WAYPOINT_RAW, lastof(buf));
peter1138@7097: 		if (strcmp(buf, name) == 0) return false;
peter1138@7097: 	}
peter1138@7097: 
peter1138@7097: 	return true;
peter1138@7097: }
peter1138@7097: 
belugas@6432: /**
belugas@6432:  * Rename a waypoint.
tron@3491:  * @param tile unused
belugas@6432:  * @param flags type of operation
Darkvater@1782:  * @param p1 id of waypoint
Darkvater@1782:  * @param p2 unused
belugas@6432:  * @return cost of operation or error
Darkvater@1782:  */
rubidium@6943: CommandCost CmdRenameWaypoint(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
truelight@1542: {
truelight@4352: 	if (!IsValidWaypointID(p1)) return CMD_ERROR;
Darkvater@1782: 
smatz@10136: 	Waypoint *wp = GetWaypoint(p1);
smatz@10136: 	if (!CheckOwnership(wp->owner)) return CMD_ERROR;
peter1138@7101: 
smatz@10148: 	bool reset = StrEmpty(_cmd_text);
smatz@10148: 
smatz@10148: 	if (!reset) {
rubidium@9914: 		if (strlen(_cmd_text) >= MAX_LENGTH_WAYPOINT_NAME_BYTES) return CMD_ERROR;
peter1138@7097: 		if (!IsUniqueWaypointName(_cmd_text)) return_cmd_error(STR_NAME_MUST_BE_UNIQUE);
smatz@10148: 	}
truelight@1542: 
smatz@10148: 	if (flags & DC_EXEC) {
smatz@10148: 		free(wp->name);
smatz@10148: 
smatz@10148: 		if (reset) {
smatz@10148: 			MakeDefaultWaypointName(wp); // sets wp->name = NULL
smatz@10148: 		} else {
smatz@10148: 			wp->name = strdup(_cmd_text);
truelight@1542: 		}
truelight@1542: 
smatz@10148: 		UpdateWaypointSign(wp);
smatz@10148: 		MarkWholeScreenDirty();
truelight@1542: 	}
rubidium@6950: 	return CommandCost();
truelight@1542: }
truelight@1542: 
belugas@6432: /**
belugas@6432:  * This hacks together some dummy one-shot Station structure for a waypoint.
belugas@6432:  * @param tile on which to work
belugas@6432:  * @return pointer to a Station
belugas@6432:  */
tron@1977: Station *ComposeWaypointStation(TileIndex tile)
truelight@1542: {
truelight@1542: 	Waypoint *wp = GetWaypointByTile(tile);
KUDr@5734: 
KUDr@5734: 	/* instead of 'static Station stat' use byte array to avoid Station's destructor call upon exit. As
KUDr@5734: 	 * a side effect, the station is not constructed now. */
KUDr@5739: 	static byte stat_raw[sizeof(Station)];
KUDr@5734: 	static Station &stat = *(Station*)stat_raw;
truelight@1542: 
truelight@1542: 	stat.train_tile = stat.xy = wp->xy;
truelight@1542: 	stat.town = GetTown(wp->town_index);
truelight@1542: 	stat.build_date = wp->build_date;
truelight@1542: 
truelight@1542: 	return &stat;
truelight@1542: }
truelight@1542: 
belugas@6432: /**
belugas@6432:  * Draw a waypoint
belugas@6432:  * @param x coordinate
belugas@6432:  * @param y coordinate
belugas@6432:  * @param stat_id station id
belugas@6432:  * @param railtype RailType to use for
belugas@6432:  */
tron@2520: void DrawWaypointSprite(int x, int y, int stat_id, RailType railtype)
truelight@1542: {
truelight@1542: 	x += 33;
truelight@1542: 	y += 17;
truelight@1542: 
peter1138@3764: 	if (!DrawStationTile(x, y, railtype, AXIS_X, STAT_CLASS_WAYP, stat_id)) {
ludde@2261: 		DrawDefaultWaypointSprite(x, y, railtype);
truelight@1542: 	}
truelight@1542: }
truelight@1542: 
rubidium@7381: Waypoint::Waypoint(TileIndex tile)
rubidium@7381: {
rubidium@7381: 	this->xy = tile;
rubidium@7381: }
rubidium@7381: 
rubidium@7381: Waypoint::~Waypoint()
rubidium@7381: {
peter1138@8258: 	free(this->name);
rubidium@7413: 
rubidium@7413: 	if (CleaningPool()) return;
belugas@9964: 	DeleteWindowById(WC_WAYPOINT_VIEW, this->index);
rubidium@7381: 	RemoveOrderFromAllVehicles(OT_GOTO_WAYPOINT, this->index);
rubidium@7381: 
rubidium@7381: 	RedrawWaypointSign(this);
rubidium@7381: 	this->xy = 0;
rubidium@7381: }
rubidium@7381: 
belugas@6432: /**
belugas@6432:  * Fix savegames which stored waypoints in their old format
belugas@6432:  */
rubidium@6247: void FixOldWaypoints()
truelight@1542: {
truelight@1542: 	Waypoint *wp;
truelight@1542: 
truelight@1542: 	/* Convert the old 'town_or_string', to 'string' / 'town' / 'town_cn' */
truelight@1542: 	FOR_ALL_WAYPOINTS(wp) {
rubidium@10236: 		wp->town_index = ClosestTownFromTile(wp->xy, UINT_MAX)->index;
truelight@1542: 		wp->town_cn = 0;
truelight@1542: 		if (wp->string & 0xC000) {
truelight@1542: 			wp->town_cn = wp->string & 0x3F;
truelight@1542: 			wp->string = STR_NULL;
truelight@1542: 		}
truelight@1542: 	}
truelight@1542: }
truelight@1542: 
rubidium@6247: void InitializeWaypoints()
truelight@1542: {
rubidium@7381: 	_Waypoint_pool.CleanPool();
rubidium@7381: 	_Waypoint_pool.AddBlockToPool();
truelight@1542: }
truelight@1542: 
Darkvater@1881: static const SaveLoad _waypoint_desc[] = {
rubidium@4344: 	SLE_CONDVAR(Waypoint, xy,         SLE_FILE_U16 | SLE_VAR_U32,  0, 5),
rubidium@4344: 	SLE_CONDVAR(Waypoint, xy,         SLE_UINT32,                  6, SL_MAX_VERSION),
rubidium@4344: 	SLE_CONDVAR(Waypoint, town_index, SLE_UINT16,                 12, SL_MAX_VERSION),
smatz@8579: 	SLE_CONDVAR(Waypoint, town_cn,    SLE_FILE_U8 | SLE_VAR_U16,  12, 88),
smatz@8579: 	SLE_CONDVAR(Waypoint, town_cn,    SLE_UINT16,                 89, SL_MAX_VERSION),
peter1138@8258: 	SLE_CONDVAR(Waypoint, string,     SLE_STRINGID,                0, 83),
peter1138@8258: 	SLE_CONDSTR(Waypoint, name,       SLE_STR, 0,                 84, SL_MAX_VERSION),
rubidium@4344: 	    SLE_VAR(Waypoint, deleted,    SLE_UINT8),
truelight@1542: 
rubidium@4344: 	SLE_CONDVAR(Waypoint, build_date, SLE_FILE_U16 | SLE_VAR_I32,  3, 30),
rubidium@4344: 	SLE_CONDVAR(Waypoint, build_date, SLE_INT32,                  31, SL_MAX_VERSION),
rubidium@4344: 	SLE_CONDVAR(Waypoint, localidx,   SLE_UINT8,                   3, SL_MAX_VERSION),
rubidium@4344: 	SLE_CONDVAR(Waypoint, grfid,      SLE_UINT32,                 17, SL_MAX_VERSION),
belugas@9978: 	SLE_CONDVAR(Waypoint, owner,      SLE_UINT8,                 101, SL_MAX_VERSION),
truelight@1542: 
truelight@1542: 	SLE_END()
truelight@1542: };
truelight@1542: 
rubidium@6247: static void Save_WAYP()
truelight@1542: {
truelight@1542: 	Waypoint *wp;
truelight@1542: 
truelight@1542: 	FOR_ALL_WAYPOINTS(wp) {
truelight@4346: 		SlSetArrayIndex(wp->index);
truelight@4346: 		SlObject(wp, _waypoint_desc);
truelight@1542: 	}
truelight@1542: }
truelight@1542: 
rubidium@6247: static void Load_WAYP()
truelight@1542: {
truelight@1542: 	int index;
truelight@1542: 
truelight@1542: 	while ((index = SlIterateArray()) != -1) {
rubidium@7381: 		Waypoint *wp = new (index) Waypoint();
truelight@1542: 		SlObject(wp, _waypoint_desc);
truelight@1542: 	}
truelight@1542: }
truelight@1542: 
rubidium@5587: extern const ChunkHandler _waypoint_chunk_handlers[] = {
truelight@1542: 	{ 'CHKP', Save_WAYP, Load_WAYP, CH_ARRAY | CH_LAST},
truelight@1542: };