1

#include "stdafx.h"

     2

#include "ttd.h"

     3

#include "table/strings.h"

     5

#include "vehicle.h"

     6

#include "command.h"

     7

#include "pathfind.h"

     8

#include "station.h"

     9

#include "gfx.h"

    10

#include "news.h"

    11

#include "engine.h"

    12

#include "gui.h"

    13

#include "player.h"

    14

#include "sound.h"

    15

    16

static const uint16 _ship_sprites[] = {0x0E5D, 0x0E55, 0x0E65, 0x0E6D};

    17

static const byte _ship_sometracks[4] = {0x19, 0x16, 0x25, 0x2A};

    18

    19

static byte GetTileShipTrackStatus(uint tile) {

    20

	uint32 r = GetTileTrackStatus(tile, TRANSPORT_WATER);

    21

	return r | r >> 8;

    22

}

    23

    24

void DrawShipEngine(int x, int y, int engine, uint32 image_ormod)

    25

{

    26

	int spritenum = ShipVehInfo(engine)->image_index;

    27

    28

	if (is_custom_sprite(spritenum)) {

    29

		int sprite = GetCustomVehicleIcon(engine, 6);

    30

    31

		if (sprite) {

    32

			DrawSprite(sprite | image_ormod, x, y);

    33

			return;

    34

		}

    35

		spritenum = _engine_original_sprites[engine];

    36

	}

    37

	DrawSprite((6 + _ship_sprites[spritenum]) | image_ormod, x, y);

    38

}

    39

    40

void DrawShipEngineInfo(int engine, int x, int y, int maxw)

    41

{

    42

	const ShipVehicleInfo *svi = ShipVehInfo(engine);

    43

	SetDParam(0, svi->base_cost * (_price.ship_base>>3)>>5);

    44

	SetDParam(1, svi->max_speed * 10 >> 5);

    45

	SetDParam(2, _cargoc.names_long_p[svi->cargo_type]);

    46

	SetDParam(3, svi->capacity);

    47

	SetDParam(4, svi->running_cost * _price.ship_running >> 8);

    48

	DrawStringMultiCenter(x, y, STR_982E_COST_MAX_SPEED_CAPACITY, maxw);

    49

}

    50

    51

int GetShipImage(Vehicle *v, byte direction)

    52

{

    53

	int spritenum = v->spritenum;

    54

    55

	if (is_custom_sprite(spritenum)) {

    56

		int sprite = GetCustomVehicleSprite(v, direction);

    57

    58

		if (sprite) return sprite;

    59

		spritenum = _engine_original_sprites[v->engine_type];

    60

	}

    61

	return _ship_sprites[spritenum] + direction;

    62

}

    63

    64

static int FindClosestShipDepot(Vehicle *v)

    65

{

    66

	uint tile, dist, best_dist = (uint)-1;

    67

	int best_depot = -1;

    68

	int i;

    69

	byte owner = v->owner;

    70

	uint tile2 = v->tile;

    71

    72

	for(i=0; i!=lengthof(_depots); i++) {

    73

		tile = _depots[i].xy;

    74

		if (IS_TILETYPE(tile, MP_WATER) && _map_owner[tile] == owner) {

    75

			dist = GetTileDist(tile, tile2);

    76

			if (dist < best_dist) {

    77

				best_dist = dist;

    78

				best_depot = i;

    79

			}

    80

		}

    81

	}

    82

    83

	return best_depot;

    84

}

    85

    86

static void CheckIfShipNeedsService(Vehicle *v)

    87

{

    88

	int i;

    89

    90

	if (_patches.servint_ships == 0)

    91

		return;

    92

    93

	if (!VehicleNeedsService(v))

    94

		return;

    95

    96

	if (v->vehstatus & VS_STOPPED)

    97

		return;

    98

    99

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

   100

			v->current_order.flags & OF_FULL_LOAD)

   101

		return;

   102

   103

	if (_patches.gotodepot && ScheduleHasDepotOrders(v->schedule_ptr))

   104

		return;

   105

   106

	i = FindClosestShipDepot(v);

   107

   108

	if (i < 0 || GetTileDist(v->tile, (&_depots[i])->xy) > 12) {

   109

		if (v->current_order.type == OT_GOTO_DEPOT) {

   110

			v->current_order.type = OT_DUMMY;

   111

			v->current_order.flags = 0;

   112

			InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, 4);

   113

		}

   114

		return;

   115

	}

   116

   117

	v->current_order.type = OT_GOTO_DEPOT;

   118

	v->current_order.flags = OF_NON_STOP;

   119

	v->current_order.station = (byte)i;

   120

	v->dest_tile = (&_depots[i])->xy;

   121

	InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, 4);

   122

}

   123

   124

void OnNewDay_Ship(Vehicle *v)

   125

{

   126

	int32 cost;

   127

   128

	if ((++v->day_counter & 7) == 0)

   129

		DecreaseVehicleValue(v);

   130

   131

	CheckVehicleBreakdown(v);

   132

	AgeVehicle(v);

   133

	CheckIfShipNeedsService(v);

   134

   135

	CheckOrders(v);

   136

   137

	if (v->vehstatus & VS_STOPPED)

   138

		return;

   139

   140

   141

   142

	cost = ShipVehInfo(v->engine_type)->running_cost * _price.ship_running / 364;

   143

	v->profit_this_year -= cost >> 8;

   144

   145

	SET_EXPENSES_TYPE(EXPENSES_SHIP_RUN);

   146

	SubtractMoneyFromPlayerFract(v->owner, cost);

   147

   148

	InvalidateWindow(WC_VEHICLE_DETAILS, v->index);

   149

	InvalidateWindow(WC_SHIPS_LIST, v->owner);

   150

}

   151

   152

static void HandleBrokenShip(Vehicle *v)

   153

{

   154

	if (v->breakdown_ctr != 1) {

   155

		v->breakdown_ctr = 1;

   156

		v->cur_speed = 0;

   157

   158

		if (v->breakdowns_since_last_service != 255)

   159

			v->breakdowns_since_last_service++;

   160

   161

		InvalidateWindow(WC_VEHICLE_VIEW, v->index);

   162

		InvalidateWindow(WC_VEHICLE_DETAILS, v->index);

   163

   164

		SndPlayVehicleFx((_opt.landscape != LT_CANDY) ?

   165

			SND_10_TRAIN_BREAKDOWN : SND_3A_COMEDY_BREAKDOWN_2, v);

   166

   167

		if (!(v->vehstatus & VS_HIDDEN)) {

   168

			Vehicle *u = CreateEffectVehicleRel(v, 4, 4, 5, EV_BREAKDOWN_SMOKE);

   169

			if (u)

   170

				u->u.special.unk0 = v->breakdown_delay * 2;

   171

		}

   172

	}

   173

   174

	if (!(v->tick_counter & 1)) {

   175

		if (!--v->breakdown_delay) {

   176

			v->breakdown_ctr = 0;

   177

			InvalidateWindow(WC_VEHICLE_VIEW, v->index);

   178

		}

   179

	}

   180

}

   181

   182

static void MarkShipDirty(Vehicle *v)

   183

{

   184

	v->cur_image = GetShipImage(v, v->direction);

   185

	MarkAllViewportsDirty(v->left_coord, v->top_coord, v->right_coord + 1, v->bottom_coord + 1);

   186

}

   187

   188

static void PlayShipSound(Vehicle *v)

   189

{

   190

	SndPlayVehicleFx(ShipVehInfo(v->engine_type)->sfx, v);

   191

}

   192

   193

static const TileIndexDiff _dock_offs[] = {

   194

	TILE_XY(2, 0),

   195

	TILE_XY(-2, 0),

   196

	TILE_XY(0, 2),

   197

	TILE_XY(2, 0),

   198

	TILE_XY(0, -2),

   199

	TILE_XY(0,0),

   200

	TILE_XY(0,0),

   201

	TILE_XY(0,0),

   202

};

   203

   204

static void ProcessShipOrder(Vehicle *v)

   205

{

   206

	Order order;

   207

	Station *st;

   208

   209

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

   210

			v->current_order.type <= OT_LEAVESTATION) {

   211

		if (v->current_order.type != OT_GOTO_DEPOT ||

   212

				!(v->current_order.flags & OF_UNLOAD))

   213

			return;

   214

	}

   215

   216

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

   217

			(v->current_order.flags & (OF_UNLOAD | OF_FULL_LOAD)) == (OF_UNLOAD | OF_FULL_LOAD) &&

   218

			!VehicleNeedsService(v)) {

   219

		v->cur_order_index++;

   220

	}

   221

   222

   223

	if (v->cur_order_index >= v->num_orders)

   224

		v->cur_order_index = 0;

   225

   226

	order = v->schedule_ptr[v->cur_order_index];

   227

   228

	if (order.type == OT_NOTHING) {

   229

		v->current_order.type = OT_NOTHING;

   230

		v->current_order.flags = 0;

   231

		v->dest_tile = 0;

   232

		return;

   233

	}

   234

   235

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

   236

			order.flags == v->current_order.flags &&

   237

			order.station == v->current_order.station)

   238

		return;

   239

   240

	v->current_order = order;

   241

   242

	if (order.type == OT_GOTO_STATION) {

   243

		if (order.station == v->last_station_visited)

   244

			v->last_station_visited = 0xFF;

   245

   246

		st = DEREF_STATION(order.station);

   247

		if (st->dock_tile != 0) {

   248

			v->dest_tile = TILE_ADD(st->dock_tile, _dock_offs[_map5[st->dock_tile]-0x4B]);

   249

		}

   250

	} else if (order.type == OT_GOTO_DEPOT) {

   251

		v->dest_tile = _depots[order.station].xy;

   252

	} else {

   253

		v->dest_tile = 0;

   254

	}

   255

	InvalidateVehicleOrderWidget(v);

   256

}

   257

   258

static void HandleShipLoading(Vehicle *v)

   259

{

   260

	if (v->current_order.type == OT_NOTHING)

   261

		return;

   262

   263

	if (v->current_order.type != OT_DUMMY) {

   264

		if (v->current_order.type != OT_LOADING)

   265

			return;

   266

   267

		if (--v->load_unload_time_rem)

   268

			return;

   269

   270

		if (v->current_order.flags & OF_FULL_LOAD && CanFillVehicle(v)) {

   271

			SET_EXPENSES_TYPE(EXPENSES_SHIP_INC);

   272

			if (LoadUnloadVehicle(v)) {

   273

				InvalidateWindow(WC_SHIPS_LIST, v->owner);

   274

				MarkShipDirty(v);

   275

			}

   276

			return;

   277

		}

   278

		PlayShipSound(v);

   279

   280

		{

   281

			Order b = v->current_order;

   282

			v->current_order.type = OT_LEAVESTATION;

   283

			v->current_order.flags = 0;

   284

			if (!(b.flags & OF_NON_STOP))

   285

				return;

   286

		}

   287

	}

   288

   289

	v->cur_order_index++;

   290

	InvalidateVehicleOrderWidget(v);

   291

}

   292

   293

static void UpdateShipDeltaXY(Vehicle *v, int dir)

   294

{

   295

#define MKIT(d,c,b,a) ((a&0xFF)<<24) | ((b&0xFF)<<16) | ((c&0xFF)<<8) | ((d&0xFF)<<0)

   296

	static const uint32 _delta_xy_table[8] = {

   297

		MKIT( -3, -3,  6,  6),

   298

		MKIT(-16, -3, 32,  6),

   299

		MKIT( -3, -3,  6,  6),

   300

		MKIT( -3,-16,  6, 32),

   301

		MKIT( -3, -3,  6,  6),

   302

		MKIT(-16, -3, 32,  6),

   303

		MKIT( -3, -3,  6,  6),

   304

		MKIT( -3,-16,  6, 32),

   305

	};

   306

#undef MKIT

   307

	uint32 x = _delta_xy_table[dir];

   308

	v->x_offs = (byte)x;

   309

	v->y_offs = (byte)(x>>=8);

   310

	v->sprite_width = (byte)(x>>=8);

   311

	v->sprite_height = (byte)(x>>=8);

   312

}

   313

   314

static void RecalcShipStuff(Vehicle *v)

   315

{

   316

	UpdateShipDeltaXY(v, v->direction);

   317

	v->cur_image = GetShipImage(v, v->direction);

   318

	MarkShipDirty(v);

   319

	InvalidateWindow(WC_VEHICLE_DEPOT, v->tile);

   320

}

   321

   322

static const TileIndexDiff _ship_leave_depot_offs[] = {

   323

	TILE_XY(-1,0),

   324

	TILE_XY(0,-1),

   325

};

   326

   327

static void CheckShipLeaveDepot(Vehicle *v)

   328

{

   329

	uint tile;

   330

	int d;

   331

	uint m;

   332

   333

	if (v->u.ship.state != 0x80)

   334

		return;

   335

   336

	tile = v->tile;

   337

	d = (_map5[tile]&2) ? 1 : 0;

   338

   339

	// Check first side

   340

	if (_ship_sometracks[d] & GetTileShipTrackStatus(TILE_ADD(tile,_ship_leave_depot_offs[d]))) {

   341

		m = (d==0) ? 0x101 : 0x207;

   342

	// Check second side

   343

	} else if (_ship_sometracks[d+2] & GetTileShipTrackStatus(TILE_ADD(tile, -2*_ship_leave_depot_offs[d]))) {

   344

		m = (d==0) ? 0x105 : 0x203;

   345

	} else {

   346

		return;

   347

	}

   348

	v->direction = (byte)m;

   349

	v->u.ship.state = (byte)(m >> 8);

   350

	v->vehstatus &= ~VS_HIDDEN;

   351

   352

	v->cur_speed = 0;

   353

	RecalcShipStuff(v);

   354

   355

	PlayShipSound(v);

   356

	VehicleServiceInDepot(v);

   357

}

   358

   359

static bool ShipAccelerate(Vehicle *v)

   360

{

   361

	uint spd;

   362

	byte t;

   363

   364

	spd = min(v->cur_speed + 1, v->max_speed);

   365

   366

	//updates statusbar only if speed have changed to save CPU time

   367

	if (spd != v->cur_speed) {

   368

		v->cur_speed = spd;

   369

		if (_patches.vehicle_speed)

   370

			InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, 4);

   371

	}

   372

   373

	// Decrease somewhat when turning

   374

	if (!(v->direction&1)) {

   375

		spd = spd * 3 >> 2;

   376

	}

   377

   378

	if (spd == 0)

   379

		return false;

   380

   381

	if ((byte)++spd == 0)

   382

		return true;

   383

   384

	v->progress = (t = v->progress) - (byte)spd;

   385

   386

	return (t < v->progress);

   387

}

   388

   389

   390

static int32 EstimateShipCost(uint16 engine_type);

   391

   392

static void ShipEnterDepot(Vehicle *v)

   393

{

   394

	v->u.ship.state = 0x80;

   395

	v->vehstatus |= VS_HIDDEN;

   396

	v->cur_speed = 0;

   397

	RecalcShipStuff(v);

   398

   399

	VehicleServiceInDepot(v);

   400

   401

	InvalidateWindow(WC_VEHICLE_DETAILS, v->index);

   402

   403

	MaybeRenewVehicle(v, EstimateShipCost(v->engine_type));

   404

   405

	TriggerVehicle(v, VEHICLE_TRIGGER_DEPOT);

   406

   407

	if (v->current_order.type == OT_GOTO_DEPOT) {

   408

		Order t;

   409

   410

		InvalidateWindow(WC_VEHICLE_VIEW, v->index);

   411

   412

		t = v->current_order;

   413

		v->current_order.type = OT_DUMMY;

   414

		v->current_order.flags = 0;

   415

   416

		if (t.flags & OF_UNLOAD) {

   417

			v->cur_order_index++;

   418

		} else if (t.flags & OF_FULL_LOAD) {

   419

			v->vehstatus |= VS_STOPPED;

   420

			if (v->owner == _local_player) {

   421

				SetDParam(0, v->unitnumber);

   422

				AddNewsItem(

   423

					STR_981C_SHIP_IS_WAITING_IN_DEPOT,

   424

					NEWS_FLAGS(NM_SMALL, NF_VIEWPORT|NF_VEHICLE, NT_ADVICE, 0),

   425

					v->index,

   426

					0);

   427

			}

   428

		}

   429

	}

   430

}

   431

   432

static void ShipArrivesAt(Vehicle *v, Station *st)

   433

{

   434

	/* Check if station was ever visited before */

   435

	if (!(st->had_vehicle_of_type & HVOT_SHIP)) {

   436

		uint32 flags;

   437

		st->had_vehicle_of_type |= HVOT_SHIP;

   438

		SetDParam(0, st->index);

   439

		flags = (v->owner == _local_player) ? NEWS_FLAGS(NM_THIN, NF_VIEWPORT|NF_VEHICLE, NT_ARRIVAL_PLAYER, 0) : NEWS_FLAGS(NM_THIN, NF_VIEWPORT|NF_VEHICLE, NT_ARRIVAL_OTHER, 0);

   440

		AddNewsItem(

   441

			STR_9833_CITIZENS_CELEBRATE_FIRST,

   442

			flags,

   443

			v->index,

   444

			0);

   445

	}

   446

}

   447

   448

typedef struct {

   449

	uint skiptile;

   450

	uint dest_coords;

   451

	uint best_bird_dist;

   452

	uint best_length;

   453

} PathFindShip;

   454

   455

//extern void dbg_store_path();

   456

   457

static bool ShipTrackFollower(uint tile, PathFindShip *pfs, int track, uint length, byte *state)

   458

{

   459

	// Found dest?

   460

	if (tile == pfs->dest_coords) {

   461

		pfs->best_bird_dist = 0;

   462

   463

//		if (length < pfs->best_length)

   464

//			dbg_store_path();

   465

   466

		pfs->best_length = minu(pfs->best_length, length);

   467

		return true;

   468

	}

   469

   470

	// Skip this tile in the calculation

   471

	if (tile != pfs->skiptile) {

   472

		pfs->best_bird_dist = minu(pfs->best_bird_dist, GetTileDist1Db(pfs->dest_coords, tile));

   473

	}

   474

   475

	return false;

   476

}

   477

   478

static const byte _ship_search_directions[6][4] = {

   479

	{ 0, 9, 2, 9 },

   480

	{ 9, 1, 9, 3 },

   481

	{ 9, 0, 3, 9 },

   482

	{ 1, 9, 9, 2 },

   483

	{ 3, 2, 9, 9 },

   484

	{ 9, 9, 1, 0 },

   485

};

   486

   487

static const byte _pick_shiptrack_table[6] = {1, 3, 2, 2, 0, 0};

   488

   489

static uint FindShipTrack(Vehicle *v, uint tile, int dir, uint bits, uint skiptile, int *track)

   490

{

   491

	PathFindShip pfs;

   492

	int i, best_track;

   493

	uint best_bird_dist = 0;

   494

	uint best_length    = 0;

   495

	uint r;

   496

	byte ship_dir = v->direction & 3;

   497

   498

	pfs.dest_coords = v->dest_tile;

   499

	pfs.skiptile = skiptile;

   500

   501

	best_track = -1;

   502

   503

	do {

   504

		i = FIND_FIRST_BIT(bits);

   505

		bits = KILL_FIRST_BIT(bits);

   506

   507

		pfs.best_bird_dist = (uint)-1;

   508

		pfs.best_length = (uint)-1;

   509

   510

		FollowTrack(tile, 0x3800 | TRANSPORT_WATER, _ship_search_directions[i][dir], (TPFEnumProc*)ShipTrackFollower, NULL, &pfs);

   511

   512

		if (best_track >= 0) {

   513

			if (pfs.best_bird_dist != 0) {

   514

				/* neither reached the destination, pick the one with the smallest bird dist */

   515

				if (pfs.best_bird_dist > best_bird_dist) goto bad;

   516

				if (pfs.best_bird_dist < best_bird_dist) goto good;

   517