1

/* $Id$ */

     2

     3

/** @file order_cmd.cpp Handling of orders. */

     4

     5

#include "stdafx.h"

     6

#include "openttd.h"

     7

#include "order_base.h"

     8

#include "order_func.h"

     9

#include "airport.h"

    10

#include "order_base.h"

    11

#include "waypoint.h"

    12

#include "command_func.h"

    13

#include "player_func.h"

    14

#include "news_func.h"

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#include "saveload.h"

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#include "vehicle_gui.h"

    17

#include "cargotype.h"

    18

#include "aircraft.h"

    19

#include "strings_func.h"

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#include "core/alloc_func.hpp"

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#include "functions.h"

    22

#include "window_func.h"

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#include "settings_type.h"

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#include "string_func.h"

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#include "newgrf_cargo.h"

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#include "timetable.h"

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#include "vehicle_func.h"

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#include "oldpool_func.h"

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#include "depot_base.h"

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    31

#include "table/strings.h"

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/* DestinationID must be at least as large as every these below, because it can

    34

 * be any of them

    35

 */

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assert_compile(sizeof(DestinationID) >= sizeof(DepotID));

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assert_compile(sizeof(DestinationID) >= sizeof(WaypointID));

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assert_compile(sizeof(DestinationID) >= sizeof(StationID));

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    40

TileIndex _backup_orders_tile;

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BackuppedOrders _backup_orders_data;

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    43

DEFINE_OLD_POOL_GENERIC(Order, Order);

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    45

void Order::Free()

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{

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	this->type  = OT_NOTHING;

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	this->flags = 0;

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	this->dest  = 0;

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	this->next  = NULL;

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}

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void Order::MakeGoToStation(StationID destination)

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{

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	this->type = OT_GOTO_STATION;

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	this->flags = 0;

    57

	this->dest = destination;

    58

}

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    60

void Order::MakeGoToDepot(DepotID destination, OrderDepotTypeFlags order, CargoID cargo, byte subtype)

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{

    62

	this->type = OT_GOTO_DEPOT;

    63

	this->flags = 0;

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	this->SetDepotOrderType(order);

    65

	if (!(order & ODTFB_PART_OF_ORDERS)) {

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		this->SetNonStopType(ONSF_NO_STOP_AT_INTERMEDIATE_STATIONS);

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	}

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	this->dest = destination;

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	this->SetRefit(cargo, subtype);

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}

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    72

void Order::MakeGoToWaypoint(WaypointID destination)

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{

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	this->type = OT_GOTO_WAYPOINT;

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	this->flags = 0;

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	this->dest = destination;

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}

    78

    79

void Order::MakeLoading(bool ordered)

    80

{

    81

	this->type = OT_LOADING;

    82

	if (!ordered) this->flags = 0;

    83

}

    84

    85

void Order::MakeLeaveStation()

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{

    87

	this->type = OT_LEAVESTATION;

    88

	this->flags = 0;

    89

}

    90

    91

void Order::MakeDummy()

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{

    93

	this->type = OT_DUMMY;

    94

	this->flags = 0;

    95

}

    96

    97

void Order::MakeConditional(VehicleOrderID order)

    98

{

    99

	this->type = OT_CONDITIONAL;

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	this->flags = order;

   101

	this->dest = 0;

   102

}

   103

   104

void Order::SetRefit(CargoID cargo, byte subtype)

   105

{

   106

	this->refit_cargo = cargo;

   107

	this->refit_subtype = subtype;

   108

}

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   110

void Order::FreeChain()

   111

{

   112

	if (next != NULL) next->FreeChain();

   113

	delete this;

   114

}

   115

   116

bool Order::Equals(const Order &other) const

   117

{

   118

	return

   119

			this->type  == other.type &&

   120

			this->flags == other.flags &&

   121

			this->dest  == other.dest;

   122

}

   123

   124

static bool HasOrderPoolFree(uint amount)

   125

{

   126

	const Order *order;

   127

   128

	/* There is always room if not all blocks in the pool are reserved */

   129

	if (_Order_pool.CanAllocateMoreBlocks()) return true;

   130

   131

	FOR_ALL_ORDERS(order) if (!order->IsValid() && --amount == 0) return true;

   132

   133

	return false;

   134

}

   135

   136

uint32 Order::Pack() const

   137

{

   138

	return this->dest << 16 | this->flags << 8 | this->type;

   139

}

   140

   141

Order::Order(uint32 packed)

   142

{

   143

	this->type    = (OrderType)GB(packed,  0,  8);

   144

	this->flags   = GB(packed,  8,  8);

   145

	this->dest    = GB(packed, 16, 16);

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	this->next    = NULL;

   147

	this->refit_cargo   = CT_NO_REFIT;

   148

	this->refit_subtype = 0;

   149

	this->wait_time     = 0;

   150

	this->travel_time   = 0;

   151

}

   152

   153

void Order::ConvertFromOldSavegame()

   154

{

   155

	/* First handle non-stop, because those bits are going to be reused. */

   156

	if (_settings.gui.sg_new_nonstop) {

   159

	} else {

   161

	}

   162

   163

	switch (this->GetType()) {

   164

		/* Only a few types need the other savegame conversions. */

   165

		case OT_GOTO_DEPOT: case OT_GOTO_STATION: case OT_LOADING: break;

   166

		default: return;

   167

	}

   168

   169

	/* Then the load/depot action flags because those bits are going to be reused too

   170

	 * and they reuse the non-stop bits. */

   171

	if (this->GetType() != OT_GOTO_DEPOT) {

   173

			this->SetLoadType(OLFB_NO_LOAD);

   175

			this->SetLoadType(OLF_LOAD_IF_POSSIBLE);

   176

		} else {

   177

			this->SetLoadType(_settings.gui.sg_full_load_any ? OLF_FULL_LOAD_ANY : OLFB_FULL_LOAD);

   178

		}

   179

	} else {

   180

		this->SetDepotActionType(((this->flags & 6) == 4) ? ODATFB_HALT : ODATF_SERVICE_ONLY);

   181

	}

   182

   183

	/* Finally fix the unload/depot type flags. */

   184

	if (this->GetType() != OT_GOTO_DEPOT) {

   186

			this->SetUnloadType(OUFB_TRANSFER);

   191

		}

   192

	} else {

   193

		uint t = ((this->flags & 6) == 6) ? ODTFB_SERVICE : ODTF_MANUAL;

   194

		if ((this->flags & 2) != 0) t |= ODTFB_PART_OF_ORDERS;

   195

		this->SetDepotOrderType((OrderDepotTypeFlags)t);

   196

	}

   197

}

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   199

/**

   200

 *

   201

 * Unpacks a order from savegames with version 4 and lower

   202

 *

   203

 */

   204

static Order UnpackVersion4Order(uint16 packed)

   205

{

   206

	return Order(GB(packed, 8, 8) << 16 | GB(packed, 4, 4) << 8 | GB(packed, 0, 4));

   207

}

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   209

/**

   210

 *

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 * Unpacks a order from savegames made with TTD(Patch)

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 *

   213

 */

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Order UnpackOldOrder(uint16 packed)

   215

{

   216

	Order order = UnpackVersion4Order(packed);

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   218

	/*

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	 * Sanity check

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	 * TTD stores invalid orders as OT_NOTHING with non-zero flags/station

   221

	 */

   222

	if (!order.IsValid() && packed != 0) order.MakeDummy();

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   224

	return order;

   225

}

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   227

/**

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 *

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 * Updates the widgets of a vehicle which contains the order-data

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 *

   231

 */

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void InvalidateVehicleOrder(const Vehicle *v)

   233

{

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	InvalidateWindow(WC_VEHICLE_VIEW,      v->index);

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	InvalidateWindow(WC_VEHICLE_ORDERS,    v->index);

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	InvalidateWindow(WC_VEHICLE_TIMETABLE, v->index);

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}

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   239

/**

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 *

   241

 * Swap two orders

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 *

   243

 */

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static void SwapOrders(Order *order1, Order *order2)

   245

{

   246

	Order temp_order;

   247

   248

	temp_order = *order1;

   249

	order1->AssignOrder(*order2);

   250

	order1->next = order2->next;

   251

	order2->AssignOrder(temp_order);

   252

	order2->next = temp_order.next;

   253

}

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   255

/**

   256

 *

   257

 * Assign data to an order (from an other order)

   258

 *   This function makes sure that the index is maintained correctly

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 *

   260

 */

   261

void Order::AssignOrder(const Order &other)

   262

{

   263

	this->type  = other.type;

   264

	this->flags = other.flags;

   265

	this->dest  = other.dest;

   266

   267

	this->refit_cargo   = other.refit_cargo;

   268

	this->refit_subtype = other.refit_subtype;

   269

   270

	this->wait_time   = other.wait_time;

   271

	this->travel_time = other.travel_time;

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}

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   274

   275

/**

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 * Delete all news items regarding defective orders about a vehicle

   277

 * This could kill still valid warnings (for example about void order when just

   278

 * another order gets added), but assume the player will notice the problems,

   279

 * when (s)he's changing the orders.

   280

 */

   281

static void DeleteOrderWarnings(const Vehicle* v)

   282

{

   283

	DeleteVehicleNews(v->index, STR_TRAIN_HAS_TOO_FEW_ORDERS  + v->type * 4);

   284

	DeleteVehicleNews(v->index, STR_TRAIN_HAS_VOID_ORDER      + v->type * 4);

   285

	DeleteVehicleNews(v->index, STR_TRAIN_HAS_DUPLICATE_ENTRY + v->type * 4);

   286

	DeleteVehicleNews(v->index, STR_TRAIN_HAS_INVALID_ENTRY   + v->type * 4);

   287

}

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   289

   290

static TileIndex GetOrderLocation(const Order& o)

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{

   292

	switch (o.GetType()) {

   293

		default: NOT_REACHED();

   294

		case OT_GOTO_STATION: return GetStation(o.GetDestination())->xy;

   295

		case OT_GOTO_DEPOT:   return GetDepot(o.GetDestination())->xy;

   296

	}

   297

}

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   299

   300

/** Add an order to the orderlist of a vehicle.

   301

 * @param tile unused

   302

 * @param flags operation to perform

   303

 * @param p1 various bitstuffed elements

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 * - p1 = (bit  0 - 15) - ID of the vehicle

   305

 * - p1 = (bit 16 - 31) - the selected order (if any). If the last order is given,

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 *                        the order will be inserted before that one

   307

 *                        only the first 8 bits used currently (bit 16 - 23) (max 255)

   308

 * @param p2 packed order to insert

   309

 */

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CommandCost CmdInsertOrder(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)

   311

{

   312

	Vehicle *v;

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	VehicleID veh   = GB(p1,  0, 16);

   314

	VehicleOrderID sel_ord = GB(p1, 16, 16);

   315

	Order new_order(p2);

   316

   317

	if (!IsValidVehicleID(veh)) return CMD_ERROR;

   318

   319

	v = GetVehicle(veh);

   320

   321

	if (!CheckOwnership(v->owner)) return CMD_ERROR;

   322

   323

	/* Check if the inserted order is to the correct destination (owner, type),

   324

	 * and has the correct flags if any */

   325

	switch (new_order.GetType()) {

   326

		case OT_GOTO_STATION: {

   327

			if (!IsValidStationID(new_order.GetDestination())) return CMD_ERROR;

   328

   329

			const Station *st = GetStation(new_order.GetDestination());

   330

   331

			if (st->owner != OWNER_NONE && !CheckOwnership(st->owner)) {

   332

				return CMD_ERROR;

   333

			}

   334

   335

			switch (v->type) {

   336

				case VEH_TRAIN:

   337

					if (!(st->facilities & FACIL_TRAIN)) return CMD_ERROR;

   338

					break;

   339

   340

				case VEH_ROAD:

   341

					if (IsCargoInClass(v->cargo_type, CC_PASSENGERS)) {

   342

						if (!(st->facilities & FACIL_BUS_STOP)) return CMD_ERROR;

   343

					} else {

   344

						if (!(st->facilities & FACIL_TRUCK_STOP)) return CMD_ERROR;

   345

					}

   346

					break;

   347

   348

				case VEH_SHIP:

   349

					if (!(st->facilities & FACIL_DOCK)) return CMD_ERROR;

   350

					break;

   351

   352

				case VEH_AIRCRAFT:

   353

					if (!(st->facilities & FACIL_AIRPORT) || !CanAircraftUseStation(v->engine_type, st)) {

   354

						return CMD_ERROR;

   355

					}

   356

					break;

   357

   358

				default: return CMD_ERROR;

   359

			}

   360

   361

			/* Non stop not allowed for non-trains. */

   362

			if (new_order.GetNonStopType() != ONSF_STOP_EVERYWHERE && v->type != VEH_TRAIN && v->type != VEH_ROAD) return CMD_ERROR;

   363

   364

			/* Full load and unload are mutual exclusive. */

   365

			if ((new_order.GetLoadType() & OLFB_FULL_LOAD) && (new_order.GetUnloadType() & OUFB_UNLOAD)) return CMD_ERROR;

   366

   367

			/* Filter invalid load/unload types. */

   368

			switch (new_order.GetLoadType()) {

   369

				case OLF_LOAD_IF_POSSIBLE: case OLFB_FULL_LOAD: case OLF_FULL_LOAD_ANY: case OLFB_NO_LOAD: break;

   370

				default: return CMD_ERROR;

   371

			}

   372

			switch (new_order.GetUnloadType()) {

   373

				case OUF_UNLOAD_IF_POSSIBLE: case OUFB_UNLOAD: case OUFB_TRANSFER: case OUFB_NO_UNLOAD: break;

   374

				default: return CMD_ERROR;

   375

			}

   376

			break;

   377

		}

   378

   379

		case OT_GOTO_DEPOT: {

   380

			if (new_order.GetDepotActionType() != ODATFB_NEAREST_DEPOT) {

   381

				if (v->type == VEH_AIRCRAFT) {

   382

					if (!IsValidStationID(new_order.GetDestination())) return CMD_ERROR;

   383

   384

					const Station *st = GetStation(new_order.GetDestination());

   385

   386

					if (!CheckOwnership(st->owner) ||

   387

							!(st->facilities & FACIL_AIRPORT) ||

   388

							st->Airport()->nof_depots == 0 ||

   389

							!CanAircraftUseStation(v->engine_type, st)) {

   390

						return CMD_ERROR;

   391

					}

   392

				} else {

   393

					if (!IsValidDepotID(new_order.GetDestination())) return CMD_ERROR;

   394

   395

					const Depot *dp = GetDepot(new_order.GetDestination());

   396

   397

					if (!CheckOwnership(GetTileOwner(dp->xy))) return CMD_ERROR;

   398

   399

					switch (v->type) {

   400

						case VEH_TRAIN:

   401

							if (!IsRailDepotTile(dp->xy)) return CMD_ERROR;

   402

							break;

   403

   404

						case VEH_ROAD:

   405

							if (!IsRoadDepotTile(dp->xy)) return CMD_ERROR;

   406

							break;

   407

   408

						case VEH_SHIP:

   409

							if (!IsShipDepotTile(dp->xy)) return CMD_ERROR;

   410

							break;

   411

   412

						default: return CMD_ERROR;

   413

					}

   414

				}

   415

			} else {

   416

				if (!IsPlayerBuildableVehicleType(v)) return CMD_ERROR;

   417

			}

   418

   419

			if (new_order.GetNonStopType() != ONSF_STOP_EVERYWHERE && v->type != VEH_TRAIN && v->type != VEH_ROAD) return CMD_ERROR;

   420

			if (new_order.GetDepotOrderType() & ~ODTFB_PART_OF_ORDERS) return CMD_ERROR;

   421

			if (new_order.GetDepotActionType() & ~ODATFB_NEAREST_DEPOT) return CMD_ERROR;

   422

			break;

   423

		}

   424

   425

		case OT_GOTO_WAYPOINT: {

   426

   427

			if (v->type != VEH_TRAIN) return CMD_ERROR;

   428

   429

			if (!IsValidWaypointID(new_order.GetDestination())) return CMD_ERROR;

   430

			const Waypoint *wp = GetWaypoint(new_order.GetDestination());

   431

   432

			if (!CheckOwnership(GetTileOwner(wp->xy))) return CMD_ERROR;

   433

   434

			/* Order flags can be any of the following for waypoints:

   435

			 * [non-stop]

   436

			 * non-stop orders (if any) are only valid for trains */

   437

			if (new_order.GetNonStopType() != ONSF_STOP_EVERYWHERE && v->type != VEH_TRAIN) return CMD_ERROR;

   438

			break;

   439

		}

   440

   441

		case OT_CONDITIONAL: {

   442

			if (!IsPlayerBuildableVehicleType(v)) return CMD_ERROR;

   443

   444

			VehicleOrderID skip_to = new_order.GetConditionSkipToOrder();

   445

			if (skip_to >= v->num_orders) return CMD_ERROR;

   446

			if (new_order.GetNonStopType() != ONSF_STOP_EVERYWHERE) return CMD_ERROR;

   447

		} break;

   448

   449

		default: return CMD_ERROR;

   450

	}

   451

   452

	if (sel_ord > v->num_orders) return CMD_ERROR;

   453

   454

	if (!HasOrderPoolFree(1)) return_cmd_error(STR_8831_NO_MORE_SPACE_FOR_ORDERS);

   455

   456

	if (v->type == VEH_SHIP && IsHumanPlayer(v->owner) && _settings.pf.pathfinder_for_ships != VPF_NPF) {

   457

		/* Make sure the new destination is not too far away from the previous */

   458

		const Order *prev = NULL;

   459

		uint n = 0;

   460

   461

		/* Find the last goto station or depot order before the insert location.

   462

		 * If the order is to be inserted at the beginning of the order list this

   463

		 * finds the last order in the list. */

   464

		for (const Order *o = v->orders; o != NULL; o = o->next) {

   465

			if (o->IsType(OT_GOTO_STATION) || o->IsType(OT_GOTO_DEPOT)) prev = o;

   466

			if (++n == sel_ord && prev != NULL) break;

   467

		}

   468

		if (prev != NULL) {

   469

			uint dist = DistanceManhattan(

   470

				GetOrderLocation(*prev),

   471

				GetOrderLocation(new_order)

   472

			);

   473

			if (dist >= 130) {

   474

				return_cmd_error(STR_0210_TOO_FAR_FROM_PREVIOUS_DESTINATIO);

   475

			}

   476

		}

   477

	}

   478

   479

	if (flags & DC_EXEC) {

   480

		Vehicle *u;

   481

		Order *new_o = new Order();

   482

		new_o->AssignOrder(new_order);

   483

   484

		/* Create new order and link in list */