1

#include "stdafx.h"

     2

#include "ttd.h"

     3

#include "table/strings.h"

     4

#include "vehicle.h"

     5

#include "command.h"

     6

#include "station.h"

     7

#include "player.h"

     8

#include "news.h"

     9

#include "saveload.h"

    10

    11

/**

    12

 *

    13

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

    14

 *

    15

 */

    16

Order UnpackOldOrder(uint16 packed)

    17

{

    18

	Order order;

    19

	order.type    = (packed & 0x000F);

    20

	order.flags   = (packed & 0x00F0) >> 4;

    21

	order.station = (packed & 0xFF00) >> 8;

    22

	order.next    = NULL;

    23

    24

	// Sanity check

    25

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

    26

	if (order.type == OT_NOTHING && (order.flags != 0 || order.station != 0)) {

    27

		order.type = OT_DUMMY;

    28

		order.flags = 0;

    29

	}

    30

    31

	return order;

    32

}

    33

    34

/**

    35

 *

    36

 * Unpacks a order from savegames with version 4 and lower

    37

 *

    38

 */

    39

Order UnpackVersion4Order(uint16 packed)

    40

{

    41

	Order order;

    42

	order.type    = (packed & 0x000F);

    43

	order.flags   = (packed & 0x00F0) >> 4;

    44

	order.station = (packed & 0xFF00) >> 8;

    45

	order.next    = NULL;

    46

	return order;

    47

}

    48

    49

/**

    50

 *

    51

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

    52

 *

    53

 */

    54

void InvalidateVehicleOrder(const Vehicle *v)

    55

{

    56

	InvalidateWindow(WC_VEHICLE_VIEW,   v->index);

    57

	InvalidateWindow(WC_VEHICLE_ORDERS, v->index);

    58

}

    59

    60

/**

    61

 *

    62

 * Swap two orders

    63

 *

    64

 */

    65

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

    66

{

    67

	Order temp_order;

    68

    69

	temp_order = *order1;

    70

	AssignOrder(order1, *order2);

    71

	order1->next = order2->next;

    72

	AssignOrder(order2, temp_order);

    73

	order2->next = temp_order.next;

    74

}

    75

    76

/**

    77

 *

    78

 * Allocate a new order

    79

 *

    80

 * @return Order* if a free space is found, else NULL.

    81

 *

    82

 */

    83

static Order *AllocateOrder()

    84

{

    85

	Order *order;

    86

    87

	FOR_ALL_ORDERS(order) {

    88

		if (order->type == OT_NOTHING) {

    89

			uint index = order->index;

    90

			memset(order, 0, sizeof(Order));

    91

			order->index = index;

    92

			return order;

    93

		}

    94

	}

    95

    96

	return NULL;

    97

}

    98

    99

/**

   100

 *

   101

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

   102

 *   This function makes sure that the index is maintained correctly

   103

 *

   104

 */

   105

void AssignOrder(Order *order, Order data)

   106

{

   107

	order->type    = data.type;

   108

	order->flags   = data.flags;

   109

	order->station = data.station;

   110

}

   111

   112

/**

   113

 *

   114

 * Add an order to the orderlist of a vehicle

   115

 *

   116

 * @param veh_sel      First 16 bits are the ID of the vehicle. The next 16 are the selected order (if any)

   117

 *                       If the lastone is given, order will be inserted above thatone

   118

 * @param packed_order Packed order to insert

   119

 *

   120

 */

   121

int32 CmdInsertOrder(int x, int y, uint32 flags, uint32 veh_sel, uint32 packed_order)

   122

{

   123

	Vehicle *v      = GetVehicle(veh_sel & 0xFFFF);

   124

	int sel         = veh_sel >> 16;

   125

	Order new_order = UnpackOrder(packed_order);

   126

   127

	if (sel > v->num_orders)

   128

		return_cmd_error(STR_EMPTY);

   129

   130

	if (IsOrderPoolFull())

   131

		return_cmd_error(STR_8831_NO_MORE_SPACE_FOR_ORDERS);

   132

   133

	/* XXX - This limit is only here because the backuppedorders can't

   134

	    handle any more then this.. */

   135

	if (v->num_orders >= 40)

   136

		return_cmd_error(STR_8832_TOO_MANY_ORDERS);

   137

   138

	/* For ships, make sure that the station is not too far away from the previous destination. */

   139

	if (v->type == VEH_Ship && IS_HUMAN_PLAYER(v->owner) &&

   140

		sel != 0 && GetVehicleOrder(v, sel - 1)->type == OT_GOTO_STATION) {

   141

   142

		int dist = GetTileDist(

   143

			GetStation(GetVehicleOrder(v, sel - 1)->station)->xy,

   144

			GetStation(new_order.station)->xy

   145

		);

   146

		if (dist >= 130)

   147

			return_cmd_error(STR_0210_TOO_FAR_FROM_PREVIOUS_DESTINATIO);

   148

	}

   149

   150

	if (flags & DC_EXEC) {

   151

		Order *new;

   152

		Vehicle *u;

   153

   154

		new = AllocateOrder();

   155

		AssignOrder(new, new_order);

   156

   157

		/* Create new order and link in list */

   158

		if (v->orders == NULL) {

   159

			v->orders = new;

   160

		} else {

   161

			/* Try to get the previous item (we are inserting above the

   162

			    selected) */

   163

			Order *order = GetVehicleOrder(v, sel - 1);

   164

   165

			if (order == NULL && GetVehicleOrder(v, sel) != NULL) {

   166

				/* There is no previous item, so we are altering v->orders itself

   167

				    But because the orders can be shared, we copy the info over

   168

				    the v->orders, so we don't have to change the pointers of

   169

				    all vehicles */

   170

				SwapOrders(v->orders, new);

   171

				/* Now update the next pointers */

   172

				v->orders->next = new;

   173

			} else if (order == NULL) {

   174

				/* 'sel' is a non-existing order, add him to the end */

   175

				order = GetLastVehicleOrder(v);

   176

				order->next = new;

   177

			} else {

   178

				/* Put the new order in between */

   179

				new->next = order->next;

   180

				order->next = new;

   181

			}

   182

		}

   183

   184

		u = GetFirstVehicleFromSharedList(v);

   185

		while (u != NULL) {

   186

			/* Increase amount of orders */

   187

			u->num_orders++;

   188

   189

			/* If the orderlist was empty, assign it */

   190

			if (u->orders == NULL)

   191

				u->orders = v->orders;

   192

   193

			assert(v->orders == u->orders);

   194

   195

			/* If there is added an order before the current one, we need

   196

			to update the selected order */

   197

			if (sel <= u->cur_order_index) {

   198

				uint cur = u->cur_order_index + 1;

   199

				/* Check if we don't go out of bound */

   200

				if (cur < u->num_orders)

   201

					u->cur_order_index = cur;

   202

			}

   203

			/* Update any possible open window of the vehicle */

   204

			InvalidateVehicleOrder(u);

   205

   206

			u = u->next_shared;

   207

		}

   208

   209

		/* Make sure to rebuild the whole list */

   210

		RebuildVehicleLists();

   211

	}

   212

   213

	return 0;

   214

}

   215

   216

/**

   217

 *

   218

 * Declone an order-list

   219

 *

   220

 */

   221

static int32 DecloneOrder(Vehicle *dst, uint32 flags)

   222

{

   223

	if (flags & DC_EXEC) {

   224

		/* Delete orders from vehicle */

   225

		DeleteVehicleOrders(dst);

   226

   227

		InvalidateVehicleOrder(dst);

   228

		RebuildVehicleLists();

   229

	}

   230

	return 0;

   231

}

   232

   233

/**

   234

 *

   235

 * Delete an order from the orderlist of a vehicle

   236

 *

   237

 * @param vehicle_id The ID of the vehicle

   238

 * @param selected   The order to delete

   239

 *

   240

 */

   241

int32 CmdDeleteOrder(int x, int y, uint32 flags, uint32 vehicle_id, uint32 selected)

   242

{

   243

	Vehicle *v = GetVehicle(vehicle_id), *u;

   244

	uint sel   = selected;

   245

	Order *order;

   246

   247

	/* XXX -- Why is this here? :s */

   248

	_error_message = STR_EMPTY;

   249

   250

	/* If we did not select an order, we maybe want to de-clone the orders */

   251

	if (sel >= v->num_orders)

   252

		return DecloneOrder(v, flags);

   253

   254

	order = GetVehicleOrder(v, sel);

   255

	if (order == NULL)

   256

		return CMD_ERROR;

   257

   258

	if (flags & DC_EXEC) {

   259

		if (GetVehicleOrder(v, sel - 1) == NULL) {

   260

			if (GetVehicleOrder(v, sel + 1) != NULL) {

   261

				/* First item, but not the last, so we need to alter v->orders

   262

				    Because we can have shared order, we copy the data

   263

				    from the next item over the deleted */

   264

				order = GetVehicleOrder(v, sel + 1);

   265

				SwapOrders(v->orders, order);

   266

			} else {

   267

				/* Last item, so clean the list */

   268

				v->orders = NULL;

   269

			}

   270

		} else {

   271

			GetVehicleOrder(v, sel - 1)->next = order->next;

   272

		}

   273

   274

		/* Give the item free */

   275

		order->type = OT_NOTHING;

   276

   277

		u = GetFirstVehicleFromSharedList(v);

   278

		while (u != NULL) {

   279

			u->num_orders--;

   280

   281

			if (sel < u->cur_order_index)

   282

				u->cur_order_index--;

   283

   284

			/* If we removed the last order, make sure the shared vehicles

   285

			    also set their orders to NULL */

   286

			if (v->orders == NULL)

   287

				u->orders = NULL;

   288

   289

			assert(v->orders == u->orders);

   290

   291

			/* NON-stop flag is misused to see if a train is in a station that is

   292

			    on his order list or not */

   293

			if (sel == u->cur_order_index &&

   294

					u->current_order.type == OT_LOADING &&

   295

					HASBIT(u->current_order.flags, OFB_NON_STOP)) {

   296

				u->current_order.flags = 0;

   297

			}

   298

   299

			/* Update any possible open window of the vehicle */

   300

			InvalidateVehicleOrder(u);

   301

   302

			u = u->next_shared;

   303

		}

   304

   305

		RebuildVehicleLists();

   306

	}

   307

   308

	return 0;

   309

}

   310

   311

/**

   312

 *

   313

 * Goto next order of order-list

   314

 *

   315

 * @param vehicle_id The ID of the vehicle

   316

 *

   317

 */

   318

int32 CmdSkipOrder(int x, int y, uint32 flags, uint32 vehicle_id, uint32 not_used)

   319

{

   320

	Vehicle *v = GetVehicle(vehicle_id);

   321

   322

	if (flags & DC_EXEC) {

   323

		/* Goto next order */

   324

		{

   325

			byte b = v->cur_order_index + 1;

   326

			if (b >= v->num_orders)

   327

				b = 0;

   328

   329

			v->cur_order_index = b;

   330

   331

			if (v->type == VEH_Train)

   332

				v->u.rail.days_since_order_progr = 0;

   333

		}

   334

   335

		/* NON-stop flag is misused to see if a train is in a station that is

   336

		    on his order list or not */

   337

		if (v->current_order.type == OT_LOADING &&

   338

				HASBIT(v->current_order.flags, OFB_NON_STOP)) {

   339

			v->current_order.flags = 0;

   340

		}

   341

   342

		InvalidateVehicleOrder(v);

   343

	}

   344

   345

	/* We have an aircraft/ship, they have a mini-schedule, so update them all */

   346

	if (v->type == VEH_Aircraft) InvalidateAircraftWindows(v);

   347

	if (v->type == VEH_Ship) InvalidateShipWindows(v);

   348

   349

	return 0;

   350

}

   351

   352

   353

/**

   354

 *

   355

 * Add an order to the orderlist of a vehicle

   356

 *

   357

 * @param veh_sel      First 16 bits are the ID of the vehicle. The next 16 are the selected order (if any)

   358

 *                       If the lastone is given, order will be inserted above thatone

   359

 * @param mode         Mode to change the order to

   360

 *

   361

 */

   362

int32 CmdModifyOrder(int x, int y, uint32 flags, uint32 veh_sel, uint32 mode)

   363

{

   364

	Vehicle *v = GetVehicle(veh_sel & 0xFFFF);

   365

	byte sel = veh_sel >> 16;

   366

	Order *order;

   367

   368

	/* Is it a valid order? */

   369

	if (sel >= v->num_orders)

   370

		return CMD_ERROR;

   371

   372

	order = GetVehicleOrder(v, sel);

   373

	if (order->type != OT_GOTO_STATION &&

   374

			(order->type != OT_GOTO_DEPOT || mode == OFB_UNLOAD) &&

   375

			(order->type != OT_GOTO_WAYPOINT || mode != OFB_NON_STOP))

   376

		return CMD_ERROR;

   377

   378

	if (flags & DC_EXEC) {

   379

		switch (mode) {

   380

		case OFB_FULL_LOAD:

   381

			TOGGLEBIT(order->flags, OFB_FULL_LOAD);

   382

			if (order->type != OT_GOTO_DEPOT)

   383

				CLRBIT(order->flags, OFB_UNLOAD);

   384

			break;

   385

		case OFB_UNLOAD:

   386

			TOGGLEBIT(order->flags, OFB_UNLOAD);

   387

			CLRBIT(order->flags, OFB_FULL_LOAD);

   388

			break;

   389

		case OFB_NON_STOP:

   390

			TOGGLEBIT(order->flags, OFB_NON_STOP);

   391

			break;

   392

		}

   393

   394

		/* Update the windows, also for vehicles that share the same order list */

   395

		{

   396

			Vehicle *u = GetFirstVehicleFromSharedList(v);

   397

			while (u != NULL) {

   398

				InvalidateVehicleOrder(u);

   399

				u = u->next_shared;

   400

			}

   401

		}

   402

	}

   403

   404

	return 0;

   405

}

   406

   407

/**

   408

 *

   409

 * Clone/share/copy an order-list of an other vehicle

   410

 *

   411

 * @param veh1_veh2 First 16 bits are of destination vehicle, last 16 of source vehicle

   412

 * @param mode      Mode of cloning (CO_SHARE, CO_COPY, CO_UNSHARE)

   413

 *

   414

 */

   415

int32 CmdCloneOrder(int x, int y, uint32 flags, uint32 veh1_veh2, uint32 mode)

   416

{

   417

	Vehicle *dst = GetVehicle(veh1_veh2 & 0xFFFF);

   418

   419

	if (dst->type == 0 || dst->owner != _current_player)

   420

		return CMD_ERROR;

   421

   422

	switch(mode) {

   423

		case CO_SHARE: {

   424

			Vehicle *src = GetVehicle(veh1_veh2 >> 16);

   425

   426

			/* Sanity checks */

   427

			if (src->type == 0 || src->owner != _current_player || dst->type != src->type || dst == src)

   428

				return CMD_ERROR;

   429

   430

			/* Trucks can't share orders with busses (and visa versa) */

   431

			if (src->type == VEH_Road) {

   432

				if (src->cargo_type != dst->cargo_type && (src->cargo_type == CT_PASSENGERS || dst->cargo_type == CT_PASSENGERS))

   433

					return CMD_ERROR;

   434

			}

   435

   436

			/* Is the vehicle already in the shared list? */

   437

			{

   438

				Vehicle *u = GetFirstVehicleFromSharedList(src);

   439

				while (u != NULL) {

   440

					if (u == dst)

   441

						return CMD_ERROR;

   442

					u = u->next_shared;

   443

				}

   444

			}

   445

   446

			if (flags & DC_EXEC) {

   447

				/* If the destination vehicle had a OrderList, destroy it */

   448

				DeleteVehicleOrders(dst);

   449

   450

				dst->orders = src->orders;

   451

				dst->num_orders = src->num_orders;

   452

   453

				/* Link this vehicle in the shared-list */

   454

				dst->next_shared = src->next_shared;

   455

				dst->prev_shared = src;

   456

				if (src->next_shared != NULL)

   457

					src->next_shared->prev_shared = dst;

   458

				src->next_shared = dst;

   459

   460

				InvalidateVehicleOrder(dst);

   461

				InvalidateVehicleOrder(src);

   462

   463

				RebuildVehicleLists();

   464

			}

   465

		} break;

   466

   467

		case CO_COPY: {

   468

			Vehicle *src = GetVehicle(veh1_veh2 >> 16);

   469

			int delta;

   470

   471

			/* Sanity checks */

   472

			if (src->type == 0 || src->owner != _current_player || dst->type != src->type || dst == src)

   473

				return CMD_ERROR;

   474

   475

			/* Trucks can't copy all the orders from busses (and visa versa) */

   476

			if (src->type == VEH_Road) {

   477

				const Order *order;

   478

				TileIndex required_dst;

   479

   480

				FOR_VEHICLE_ORDERS(src, order) {

   481

					if (order->type == OT_GOTO_STATION) {

   482

						const Station *st = GetStation(order->station);

   483

						required_dst = (dst->cargo_type == CT_PASSENGERS) ? st->bus_tile : st->lorry_tile;

   484

						/* This station has not the correct road-bay, so we can't copy! */

   485

						if (!required_dst)

   486

							return CMD_ERROR;

   487

					}

   488

				}

   489

			}

   490

   491

			/* make sure there are orders available */

   492

			delta = IsOrderListShared(dst) ? src->num_orders + 1 : src->num_orders - dst->num_orders;

   493

			if (!HasOrderPoolFree(delta))

   494