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(void)

    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

			order->next = NULL;

    93

			return order;

    94

		}

    95

	}

    96

    97

	return NULL;

    98

}

    99

   100

/**

   101

 *

   102

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

   103

 *   This function makes sure that the index is maintained correctly

   104

 *

   105

 */

   106

void AssignOrder(Order *order, Order data)

   107

{

   108

	order->type    = data.type;

   109

	order->flags   = data.flags;

   110

	order->station = data.station;

   111

}

   112

   113

/**

   114

 *

   115

 * Add an order to the orderlist of a vehicle

   116

 *

   117

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

   118

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

   119

 * @param packed_order Packed order to insert

   120

 *

   121

 */

   122

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

   123

{

   124

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

   125

	int sel         = veh_sel >> 16;

   126

	Order new_order = UnpackOrder(packed_order);

   127

   128

	if (sel > v->num_orders)

   129

		return_cmd_error(STR_EMPTY);

   130

   131

	if (IsOrderPoolFull())

   132

		return_cmd_error(STR_8831_NO_MORE_SPACE_FOR_ORDERS);

   133

   134

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

   135

	    handle any more then this.. */

   136

	if (v->num_orders >= 40)

   137

		return_cmd_error(STR_8832_TOO_MANY_ORDERS);

   138

   139

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

   140

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

   141

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

   142

   143

		int dist = GetTileDist(

   144

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

   145

			GetStation(new_order.station)->xy

   146

		);

   147

		if (dist >= 130)

   148

			return_cmd_error(STR_0210_TOO_FAR_FROM_PREVIOUS_DESTINATIO);

   149

	}

   150

   151

	if (flags & DC_EXEC) {

   152

		Order *new;

   153

		Vehicle *u;

   154

   155

		new = AllocateOrder();

   156

		AssignOrder(new, new_order);

   157

   158

		/* Create new order and link in list */

   159

		if (v->orders == NULL) {

   160

			v->orders = new;

   161

		} else {

   162

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

   163

			    selected) */

   164

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

   165

   166

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

   167

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

   168

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

   169

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

   170

				    all vehicles */

   171

				SwapOrders(v->orders, new);

   172

				/* Now update the next pointers */

   173

				v->orders->next = new;

   174

			} else if (order == NULL) {

   175

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

   176

				order = GetLastVehicleOrder(v);

   177

				order->next = new;

   178

			} else {

   179

				/* Put the new order in between */

   180

				new->next = order->next;

   181

				order->next = new;

   182

			}

   183

		}

   184

   185

		u = GetFirstVehicleFromSharedList(v);

   186

		while (u != NULL) {

   187

			/* Increase amount of orders */

   188

			u->num_orders++;

   189

   190

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

   191

			if (u->orders == NULL)

   192

				u->orders = v->orders;

   193

   194

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

   195

   196

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

   197

			to update the selected order */

   198

			if (sel <= u->cur_order_index) {

   199

				uint cur = u->cur_order_index + 1;

   200

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

   201

				if (cur < u->num_orders)

   202

					u->cur_order_index = cur;

   203

			}

   204

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

   205

			InvalidateVehicleOrder(u);

   206

   207

			u = u->next_shared;

   208

		}

   209

   210

		/* Make sure to rebuild the whole list */

   211

		RebuildVehicleLists();

   212

	}

   213

   214

	return 0;

   215

}

   216

   217

/**

   218

 *

   219

 * Declone an order-list

   220

 *

   221

 */

   222

static int32 DecloneOrder(Vehicle *dst, uint32 flags)

   223

{

   224

	if (flags & DC_EXEC) {

   225

		/* Delete orders from vehicle */

   226

		DeleteVehicleOrders(dst);

   227

   228

		InvalidateVehicleOrder(dst);

   229

		RebuildVehicleLists();

   230

	}

   231

	return 0;

   232

}

   233

   234

/**

   235

 *

   236

 * Delete an order from the orderlist of a vehicle

   237

 *

   238

 * @param vehicle_id The ID of the vehicle

   239

 * @param selected   The order to delete

   240

 *

   241

 */

   242

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

   243

{

   244

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

   245

	uint sel   = selected;

   246

	Order *order;

   247

   248

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

   249

	_error_message = STR_EMPTY;

   250

   251

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

   252

	if (sel >= v->num_orders)

   253

		return DecloneOrder(v, flags);

   254

   255

	order = GetVehicleOrder(v, sel);

   256

	if (order == NULL)

   257

		return CMD_ERROR;

   258

   259

	if (flags & DC_EXEC) {

   260

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

   261

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

   262

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

   263

				    Because we can have shared order, we copy the data

   264

				    from the next item over the deleted */

   265

				order = GetVehicleOrder(v, sel + 1);

   266

				SwapOrders(v->orders, order);

   267

			} else {

   268

				/* Last item, so clean the list */

   269

				v->orders = NULL;

   270

			}

   271

		} else {

   272

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

   273

		}

   274

   275

		/* Give the item free */

   276

		order->type = OT_NOTHING;

   277

		order->next = NULL;

   278

   279

		u = GetFirstVehicleFromSharedList(v);

   280

		while (u != NULL) {

   281

			u->num_orders--;

   282

   283

			if (sel < u->cur_order_index)

   284

				u->cur_order_index--;

   285

   286

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

   287

			    also set their orders to NULL */

   288

			if (v->orders == NULL)

   289

				u->orders = NULL;

   290

   291

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

   292

   293

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

   294

			    on his order list or not */

   295

			if (sel == u->cur_order_index &&

   296

					u->current_order.type == OT_LOADING &&

   297

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

   298

				u->current_order.flags = 0;

   299

			}

   300

   301

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

   302

			InvalidateVehicleOrder(u);

   303

   304

			u = u->next_shared;

   305

		}

   306

   307

		RebuildVehicleLists();

   308

	}

   309

   310

	return 0;

   311

}

   312

   313

/**

   314

 *

   315

 * Goto next order of order-list

   316

 *

   317

 * @param vehicle_id The ID of the vehicle

   318

 *

   319

 */

   320

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

   321

{

   322

	Vehicle *v = GetVehicle(vehicle_id);

   323

   324

	if (flags & DC_EXEC) {

   325

		/* Goto next order */

   326

		{

   327

			byte b = v->cur_order_index + 1;

   328

			if (b >= v->num_orders)

   329

				b = 0;

   330

   331

			v->cur_order_index = b;

   332

   333

			if (v->type == VEH_Train)

   334

				v->u.rail.days_since_order_progr = 0;

   335

		}

   336

   337

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

   338

		    on his order list or not */

   339

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

   340

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

   341

			v->current_order.flags = 0;

   342

		}

   343

   344

		InvalidateVehicleOrder(v);

   345

	}

   346

   347

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

   348

	if (v->type == VEH_Aircraft) InvalidateWindowClasses(WC_AIRCRAFT_LIST);

   349

	if (v->type == VEH_Ship) InvalidateWindowClasses(WC_SHIPS_LIST);

   350

   351

	return 0;

   352

}

   353

   354

   355

/**

   356

 *

   357

 * Add an order to the orderlist of a vehicle

   358

 *

   359

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

   360

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

   361

 * @param mode         Mode to change the order to

   362

 *

   363

 */

   364

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

   365

{

   366

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

   367

	byte sel = veh_sel >> 16;

   368

	Order *order;

   369

   370

	/* Is it a valid order? */

   371

	if (sel >= v->num_orders)

   372

		return CMD_ERROR;

   373

   374

	order = GetVehicleOrder(v, sel);

   375

	if (order->type != OT_GOTO_STATION &&

   376

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

   377

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

   378

		return CMD_ERROR;

   379

   380

	if (flags & DC_EXEC) {

   381

		switch (mode) {

   382

		case OFB_FULL_LOAD:

   383

			TOGGLEBIT(order->flags, OFB_FULL_LOAD);

   384

			if (order->type != OT_GOTO_DEPOT)

   385

				CLRBIT(order->flags, OFB_UNLOAD);

   386

			break;

   387

		case OFB_UNLOAD:

   388

			TOGGLEBIT(order->flags, OFB_UNLOAD);

   389

			CLRBIT(order->flags, OFB_FULL_LOAD);

   390

			break;

   391

		case OFB_NON_STOP:

   392

			TOGGLEBIT(order->flags, OFB_NON_STOP);

   393

			break;

   394

		}

   395

   396

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

   397

		{

   398

			Vehicle *u = GetFirstVehicleFromSharedList(v);

   399

			while (u != NULL) {

   400

				InvalidateVehicleOrder(u);

   401

				u = u->next_shared;

   402

			}

   403

		}

   404

	}

   405

   406

	return 0;

   407

}

   408

   409

/**

   410

 *

   411

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

   412

 *

   413

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

   414

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

   415

 *

   416

 */

   417

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

   418

{

   419

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

   420

   421

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

   422

		return CMD_ERROR;

   423

   424

	switch(mode) {

   425

		case CO_SHARE: {

   426

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

   427

   428

			/* Sanity checks */

   429

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

   430

				return CMD_ERROR;

   431

   432

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

   433

			if (src->type == VEH_Road) {

   434

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

   435

					return CMD_ERROR;

   436

			}

   437

   438

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

   439

			{

   440

				Vehicle *u = GetFirstVehicleFromSharedList(src);

   441

				while (u != NULL) {

   442

					if (u == dst)

   443

						return CMD_ERROR;

   444

					u = u->next_shared;

   445

				}

   446

			}

   447

   448

			if (flags & DC_EXEC) {

   449

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

   450

				DeleteVehicleOrders(dst);

   451

   452

				dst->orders = src->orders;

   453

				dst->num_orders = src->num_orders;

   454

   455

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

   456

				dst->next_shared = src->next_shared;

   457

				dst->prev_shared = src;

   458

				if (src->next_shared != NULL)

   459

					src->next_shared->prev_shared = dst;

   460

				src->next_shared = dst;

   461

   462

				InvalidateVehicleOrder(dst);

   463

				InvalidateVehicleOrder(src);

   464

   465

				RebuildVehicleLists();

   466

			}

   467

		} break;

   468

   469

		case CO_COPY: {

   470

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

   471

			int delta;

   472

   473

			/* Sanity checks */

   474

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

   475

				return CMD_ERROR;

   476

   477

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

   478

			if (src->type == VEH_Road) {

   479

				const Order *order;

   480

				TileIndex required_dst;

   481

   482

				FOR_VEHICLE_ORDERS(src, order) {

   483

					if (order->type == OT_GOTO_STATION) {

   484

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

   485

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

   486

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

   487

						if (!required_dst)

   488

							return CMD_ERROR;

   489

					}

   490

				}

   491

			}

   492

   493

			/* make sure there are orders available */