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"

    14

#include "news_func.h"

    15

#include "saveload.h"

    16

#include "vehicle_gui.h"

    17

#include "cargotype.h"

    18

#include "aircraft.h"

    19

#include "strings_func.h"

    20

#include "core/alloc_func.hpp"

    21

#include "functions.h"

    22

#include "window_func.h"

    23

#include "settings_type.h"

    24

#include "string_func.h"

    25

#include "newgrf_cargo.h"

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#include "timetable.h"

    27

#include "vehicle_func.h"

    28

#include "oldpool_func.h"

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#include "depot_base.h"

    30

    31

#include "table/strings.h"

    32

    33

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

    34

 * be any of them

    35

 */

    36

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

    37

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

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

    39

    40

TileIndex _backup_orders_tile;

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BackuppedOrders _backup_orders_data;

    42

    43

DEFINE_OLD_POOL_GENERIC(Order, Order);

    44

    45

void Order::Free()

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{

    47

	this->type  = OT_NOTHING;

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	this->flags = 0;

    49

	this->dest  = 0;

    50

	this->next  = NULL;

    51

}

    52

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void Order::MakeGoToStation(StationID destination)

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{

    55

	this->type = OT_GOTO_STATION;

    56

	this->flags = 0;

    57

	this->dest = destination;

    58

}

    59

    60

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

    61

{

    62

	this->type = OT_GOTO_DEPOT;

    63

	this->flags = 0;

    64

	this->SetDepotOrderType(order);

    65

	if (!(order & ODTFB_PART_OF_ORDERS)) {

    66

		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)

    73

{

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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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}

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    79

void Order::MakeLoading(bool ordered)

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{

    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()

    92

{

    93

	this->type = OT_DUMMY;

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	this->flags = 0;

    95

}

    96

    97

void Order::MakeConditional(VehicleOrderID order)

    98

{

    99

	this->type = OT_CONDITIONAL;

   100

	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

}

   109

   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

	uint8 old_flags = this->flags;

   156

	this->flags = 0;

   157

   158

	/* First handle non-stop */

   159

	if (_settings_client.gui.sg_new_nonstop) {

   160

		/* OFB_NON_STOP */

   161

		this->SetNonStopType((old_flags & 8) ? ONSF_NO_STOP_AT_ANY_STATION : ONSF_NO_STOP_AT_INTERMEDIATE_STATIONS);

   162

	} else {

   163

		this->SetNonStopType((old_flags & 8) ? ONSF_NO_STOP_AT_INTERMEDIATE_STATIONS : ONSF_STOP_EVERYWHERE);

   164

	}

   165

   166

	switch (this->GetType()) {

   167

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

   168

		case OT_GOTO_DEPOT: case OT_GOTO_STATION: case OT_LOADING: break;

   169

		default: return;

   170

	}

   171

   172

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

   173

		/* Then the load flags */

   174

		if ((old_flags & 2) != 0) { // OFB_UNLOAD

   175

			this->SetLoadType(OLFB_NO_LOAD);

   176

		} else if ((old_flags & 4) == 0) { // !OFB_FULL_LOAD

   177

			this->SetLoadType(OLF_LOAD_IF_POSSIBLE);

   178

		} else {

   179

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

   180

		}

   181

   182

		/* Finally fix the unload flags */

   183

		if ((old_flags & 1) != 0) { // OFB_TRANSFER

   184

			this->SetUnloadType(OUFB_TRANSFER);

   185

		} else if ((old_flags & 2) != 0) { // OFB_UNLOAD

   186

			this->SetUnloadType(OUFB_UNLOAD);

   187

		} else {

   188

			this->SetUnloadType(OUF_UNLOAD_IF_POSSIBLE);

   189

		}

   190

	} else {

   191

		/* Then the depot action flags */

   192

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

   193

   194

		/* Finally fix the depot type flags */

   195

		uint t = ((old_flags & 6) == 6) ? ODTFB_SERVICE : ODTF_MANUAL;

   196

		if ((old_flags & 2) != 0) t |= ODTFB_PART_OF_ORDERS;

   197

		this->SetDepotOrderType((OrderDepotTypeFlags)t);

   198

	}

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}

   200

   201

/**

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 *

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 * Unpacks a order from savegames with version 4 and lower

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 *

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 */

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static Order UnpackVersion4Order(uint16 packed)

   207

{

   208

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

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}

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/**

   212

 *

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

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 *

   215

 */

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Order UnpackOldOrder(uint16 packed)

   217

{

   218

	Order order = UnpackVersion4Order(packed);

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   220

	/*

   221

	 * Sanity check

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

   223

	 */

   224

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

   225

   226

	return order;

   227

}

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   229

/**

   230

 *

   231

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

   232

 *

   233

 */

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void InvalidateVehicleOrder(const Vehicle *v, int data)

   235

{

   236

	InvalidateWindow(WC_VEHICLE_VIEW, v->index);

   237

   238

	if (data != 0) {

   239

		/* Calls SetDirty() too */

   240

		InvalidateWindowData(WC_VEHICLE_ORDERS,    v->index, data);

   241

		InvalidateWindowData(WC_VEHICLE_TIMETABLE, v->index, data);

   242

		return;

   243

	}

   244

   245

	InvalidateWindow(WC_VEHICLE_ORDERS,    v->index);

   246

	InvalidateWindow(WC_VEHICLE_TIMETABLE, v->index);

   247

}

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   249

/**

   250

 *

   251

 * Swap two orders

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 *

   253

 */

   254

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

   255

{

   256

	Order temp_order;

   257

   258

	temp_order = *order1;

   259

	order1->AssignOrder(*order2);

   260

	order1->next = order2->next;

   261

	order2->AssignOrder(temp_order);

   262

	order2->next = temp_order.next;

   263

}

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   265

/**

   266

 *

   267

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

   268

 *   This function makes sure that the index is maintained correctly

   269

 *

   270

 */

   271

void Order::AssignOrder(const Order &other)

   272

{

   273

	this->type  = other.type;

   274

	this->flags = other.flags;

   275

	this->dest  = other.dest;

   276

   277

	this->refit_cargo   = other.refit_cargo;

   278

	this->refit_subtype = other.refit_subtype;

   279

   280

	this->wait_time   = other.wait_time;

   281

	this->travel_time = other.travel_time;

   282

}

   283

   284

   285

/**

   286

 * Delete all news items regarding defective orders about a vehicle

   287

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

   288

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

   289

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

   290

 */

   291

static void DeleteOrderWarnings(const Vehicle* v)

   292

{

   293

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

   294

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

   295

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

   296

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

   297

}

   298

   299

   300

static TileIndex GetOrderLocation(const Order& o)

   301

{

   302

	switch (o.GetType()) {

   303

		default: NOT_REACHED();

   304

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

   305

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

   306

	}

   307

}

   308

   309

static uint GetOrderDistance(const Order *prev, const Order *cur, const Vehicle *v, int conditional_depth = 0)

   310

{

   311

	if (cur->IsType(OT_CONDITIONAL)) {

   312

		if (conditional_depth > v->num_orders) return 0;

   313

   314

		conditional_depth++;

   315

   316

		int dist1 = GetOrderDistance(prev, GetVehicleOrder(v, cur->GetConditionSkipToOrder()), v, conditional_depth);

   317

		int dist2 = GetOrderDistance(prev, cur->next == NULL ? v->orders : cur->next, v, conditional_depth);

   318

		return max(dist1, dist2);

   319

	}

   320

   321

	return DistanceManhattan(GetOrderLocation(*prev), GetOrderLocation(*cur));

   322

}

   323

   324

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

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 * @param tile unused

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 * @param flags operation to perform

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 * @param p1 various bitstuffed elements

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

   329

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

   330

 *                        the order will be inserted before that one

   331

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

   332

 * @param p2 packed order to insert

   333

 */

   334

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

   335

{

   336

	Vehicle *v;

   337

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

   338

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

   339

	Order new_order(p2);

   340

   341

	if (!IsValidVehicleID(veh)) return CMD_ERROR;

   342

   343

	v = GetVehicle(veh);

   344

   345

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

   346

   347

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

   348

	 * and has the correct flags if any */

   349

	switch (new_order.GetType()) {

   350

		case OT_GOTO_STATION: {

   351

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

   352

   353

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

   354

   355

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

   356

				return CMD_ERROR;

   357

			}

   358

   359

			switch (v->type) {

   360

				case VEH_TRAIN:

   361

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

   362

					break;

   363

   364

				case VEH_ROAD:

   365

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

   366

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

   367

					} else {

   368

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

   369

					}

   370

					break;

   371

   372

				case VEH_SHIP:

   373

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

   374

					break;

   375

   376

				case VEH_AIRCRAFT:

   377

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

   378

						return CMD_ERROR;

   379

					}

   380

					break;

   381

   382

				default: return CMD_ERROR;

   383

			}

   384

   385

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

   386

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

   387

   388

			/* No load and no unload are mutual exclusive. */

   389

			if ((new_order.GetLoadType() & OLFB_NO_LOAD) && (new_order.GetUnloadType() & OUFB_NO_UNLOAD)) return CMD_ERROR;

   390

   391

			/* Filter invalid load/unload types. */

   392

			switch (new_order.GetLoadType()) {

   393

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

   394

				default: return CMD_ERROR;

   395

			}

   396

			switch (new_order.GetUnloadType()) {

   397

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

   398

				default: return CMD_ERROR;

   399

			}

   400

			break;

   401

		}

   402

   403

		case OT_GOTO_DEPOT: {

   404

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

   405

				if (v->type == VEH_AIRCRAFT) {

   406

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

   407

   408

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

   409

   410

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

   411

							!(st->facilities & FACIL_AIRPORT) ||

   412

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

   413

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

   414

						return CMD_ERROR;

   415

					}

   416

				} else {

   417

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

   418

   419

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

   420

   421

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

   422

   423

					switch (v->type) {

   424

						case VEH_TRAIN:

   425

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

   426

							break;

   427

   428

						case VEH_ROAD:

   429

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

   430

							break;

   431

   432

						case VEH_SHIP:

   433

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

   434

							break;

   435

   436

						default: return CMD_ERROR;

   437

					}

   438

				}

   439

			} else {

   440

				if (!IsCompanyBuildableVehicleType(v)) return CMD_ERROR;

   441

			}

   442

   443

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

   444

			if (new_order.GetDepotOrderType() & ~(ODTFB_PART_OF_ORDERS | ((new_order.GetDepotOrderType() & ODTFB_PART_OF_ORDERS) != 0 ? ODTFB_SERVICE : 0))) return CMD_ERROR;

   445

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

   446

			break;

   447

		}

   448

   449

		case OT_GOTO_WAYPOINT: {

   450

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

   451

   452

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

   453

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

   454

   455

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

   456

   457

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

   458

			 * [non-stop]

   459

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

   460

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

   461

			break;

   462

		}

   463

   464

		case OT_CONDITIONAL: {

   465

			VehicleOrderID skip_to = new_order.GetConditionSkipToOrder();

   466

			if (skip_to != 0 && skip_to >= v->num_orders) return CMD_ERROR; // Always allow jumping to the first (even when there is no order).

   467

			if (new_order.GetConditionVariable() > OCV_END) return CMD_ERROR;

   468

   469

			OrderConditionComparator occ = new_order.GetConditionComparator();

   470

			if (occ > OCC_END) return CMD_ERROR;

   471

			switch (new_order.GetConditionVariable()) {

   472

				case OCV_REQUIRES_SERVICE:

   473

					if (occ != OCC_IS_TRUE && occ != OCC_IS_FALSE) return CMD_ERROR;

   474

					break;

   475

   476

				case OCV_UNCONDITIONALLY:

   477

					if (occ != OCC_EQUALS) return CMD_ERROR;

   478

					if (new_order.GetConditionValue() != 0) return CMD_ERROR;

   479

					break;

   480

   481

				case OCV_LOAD_PERCENTAGE:

   482

				case OCV_RELIABILITY:

   483

					if (new_order.GetConditionValue() > 100) return CMD_ERROR;