1

#include "stdafx.h"

     2

#include "ttd.h"

     3

#include "table/strings.h"

     4

#include "vehicle.h"

     5

#include "command.h"

     6

#include "pathfind.h"

     7

#include "station.h"

     8

#include "gfx.h"

     9

#include "news.h"

    10

#include "engine.h"

    11

#include "gui.h"

    12

#include "player.h"

    13

#include "sound.h"

    14

    15

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

    16

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

    17

    18

static byte GetTileShipTrackStatus(uint tile) {

    19

	uint32 r = GetTileTrackStatus(tile, TRANSPORT_WATER);

    20

	return r | r >> 8;

    21

}

    22

    23

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

    24

{

    25

	int spritenum = ShipVehInfo(engine)->image_index;

    26

    27

	if (is_custom_sprite(spritenum)) {

    28

		int sprite = GetCustomVehicleIcon(engine, 6);

    29

    30

		if (sprite) {

    31

			DrawSprite(sprite | image_ormod, x, y);

    32

			return;

    33

		}

    34

		spritenum = _engine_original_sprites[engine];

    35

	}

    36

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

    37

}

    38

    39

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

    40

{

    41

	const ShipVehicleInfo *svi = ShipVehInfo(engine);

    42

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

    43

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

    44

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

    45

	SetDParam(3, svi->capacity);

    46

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

    47

	DrawStringMultiCenter(x, y, STR_982E_COST_MAX_SPEED_CAPACITY, maxw);

    48

}

    49

    50

int GetShipImage(Vehicle *v, byte direction)

    51

{

    52

	int spritenum = v->spritenum;

    53

    54

	if (is_custom_sprite(spritenum)) {

    55

		int sprite = GetCustomVehicleSprite(v, direction);

    56

    57

		if (sprite) return sprite;

    58

		spritenum = _engine_original_sprites[v->engine_type];

    59

	}

    60

	return _ship_sprites[spritenum] + direction;

    61

}

    62

    63

static int FindClosestShipDepot(Vehicle *v)

    64

{

    65

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

    66

	int best_depot = -1;

    67

	int i;

    68

	byte owner = v->owner;

    69

	uint tile2 = v->tile;

    70

    71

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

    72

		tile = _depots[i].xy;

    73

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

    74

			dist = GetTileDist(tile, tile2);

    75

			if (dist < best_dist) {

    76

				best_dist = dist;

    77

				best_depot = i;

    78

			}

    79

		}

    80

	}

    81

    82

	return best_depot;

    83

}

    84

    85

static void CheckIfShipNeedsService(Vehicle *v)

    86

{

    87

	int i;

    88

    89

	if (_patches.servint_ships == 0)

    90

		return;

    91

    92

	if (SERVICE_INTERVAL)

    93

		return;

    94

    95

	if (v->vehstatus & VS_STOPPED)

    96

		return;

    97

    98

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

    99

			v->current_order.flags & OF_FULL_LOAD)

   100

		return;

   101

   102

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

   103

		return;

   104

   105

	i = FindClosestShipDepot(v);

   106

   107

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

   108

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

   109

			v->current_order.type = OT_DUMMY;

   110

			v->current_order.flags = 0;

   111

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

   112

		}

   113

		return;

   114

	}

   115

   116

	v->current_order.type = OT_GOTO_DEPOT;

   117

	v->current_order.flags = OF_NON_STOP;

   118

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

   119

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

   120

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

   121

}

   122

   123

void OnNewDay_Ship(Vehicle *v)

   124

{

   125

	int32 cost;

   126

   127

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

   128

		DecreaseVehicleValue(v);

   129

   130

	CheckVehicleBreakdown(v);

   131

	AgeVehicle(v);

   132

	CheckIfShipNeedsService(v);

   133

   134

	CheckOrders(v);

   135

   136

	if (v->vehstatus & VS_STOPPED)

   137

		return;

   138

   139

   140

   141

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

   142

	v->profit_this_year -= cost >> 8;

   143

   144

	SET_EXPENSES_TYPE(EXPENSES_SHIP_RUN);

   145

	SubtractMoneyFromPlayerFract(v->owner, cost);

   146

   147

	InvalidateWindow(WC_VEHICLE_DETAILS, v->index);

   148

	InvalidateWindow(WC_SHIPS_LIST, v->owner);

   149

}

   150

   151

static void HandleBrokenShip(Vehicle *v)

   152

{

   153

	if (v->breakdown_ctr != 1) {

   154

		v->breakdown_ctr = 1;

   155

		v->cur_speed = 0;

   156

   157

		if (v->breakdowns_since_last_service != 255)

   158

			v->breakdowns_since_last_service++;

   159

   160

		InvalidateWindow(WC_VEHICLE_VIEW, v->index);

   161

		InvalidateWindow(WC_VEHICLE_DETAILS, v->index);

   162

   163

		SndPlayVehicleFx((_opt.landscape != LT_CANDY) ?

   164

			SND_10_TRAIN_BREAKDOWN : SND_3A_COMEDY_BREAKDOWN_2, v);

   165

   166

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

   167

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

   168

			if (u)

   169

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

   170

		}

   171

	}

   172

   173

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

   174

		if (!--v->breakdown_delay) {

   175

			v->breakdown_ctr = 0;

   176

			InvalidateWindow(WC_VEHICLE_VIEW, v->index);

   177

		}

   178

	}

   179

}

   180

   181

static void MarkShipDirty(Vehicle *v)

   182

{

   183

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

   184

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

   185

}

   186

   187

static void PlayShipSound(Vehicle *v)

   188

{

   189

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

   190

}

   191

   192

static const TileIndexDiff _dock_offs[] = {

   193

	TILE_XY(2, 0),

   194

	TILE_XY(-2, 0),

   195

	TILE_XY(0, 2),

   196

	TILE_XY(2, 0),

   197

	TILE_XY(0, -2),

   198

	TILE_XY(0,0),

   199

	TILE_XY(0,0),

   200

	TILE_XY(0,0),

   201

};

   202

   203

static void ProcessShipOrder(Vehicle *v)

   204

{

   205

	Order order;

   206

	Station *st;

   207

   208

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

   209

			v->current_order.type <= OT_LEAVESTATION) {

   210

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

   211

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

   212

			return;

   213

	}

   214

   215

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

   216

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

   217

			SERVICE_INTERVAL) {

   218

		v->cur_order_index++;

   219

	}

   220

   221

   222

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

   223

		v->cur_order_index = 0;

   224

   225

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

   226

   227

	if (order.type == OT_NOTHING) {

   228

		v->current_order.type = OT_NOTHING;

   229

		v->current_order.flags = 0;

   230

		v->dest_tile = 0;

   231

		return;

   232

	}

   233

   234

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

   235

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

   236

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

   237

		return;

   238

   239

	v->current_order = order;

   240

   241

	if (order.type == OT_GOTO_STATION) {

   242

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

   243

			v->last_station_visited = 0xFF;

   244

   245

		st = DEREF_STATION(order.station);

   246

		if (st->dock_tile != 0) {

   247

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

   248

		}

   249

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

   250

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

   251

	} else {

   252

		v->dest_tile = 0;

   253

	}

   254

	InvalidateVehicleOrderWidget(v);

   255

}

   256

   257

static void HandleShipLoading(Vehicle *v)

   258

{

   259

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

   260

		return;

   261

   262

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

   263

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

   264

			return;

   265

   266

		if (--v->load_unload_time_rem)

   267

			return;

   268

   269

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

   270

			SET_EXPENSES_TYPE(EXPENSES_SHIP_INC);

   271

			if (LoadUnloadVehicle(v)) {

   272

				InvalidateWindow(WC_SHIPS_LIST, v->owner);

   273

				MarkShipDirty(v);

   274

			}

   275

			return;

   276

		}

   277

		PlayShipSound(v);

   278

   279

		{

   280

			Order b = v->current_order;

   281

			v->current_order.type = OT_LEAVESTATION;

   282

			v->current_order.flags = 0;

   283

			if (!(b.flags & OF_NON_STOP))

   284

				return;

   285

		}

   286

	}

   287

   288

	v->cur_order_index++;

   289

	InvalidateVehicleOrderWidget(v);

   290

}

   291

   292

static void UpdateShipDeltaXY(Vehicle *v, int dir)

   293

{

   294

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

   295

	static const uint32 _delta_xy_table[8] = {

   296

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

   297

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

   298

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

   299

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

   300

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

   301

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

   302

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

   303

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

   304

	};

   305

#undef MKIT

   306

	uint32 x = _delta_xy_table[dir];

   307

	v->x_offs = (byte)x;

   308

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

   309

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

   310

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

   311

}

   312

   313

static void RecalcShipStuff(Vehicle *v)

   314

{

   315

	UpdateShipDeltaXY(v, v->direction);

   316

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

   317

	MarkShipDirty(v);

   318

	InvalidateWindow(WC_VEHICLE_DEPOT, v->tile);

   319

}

   320

   321

static const TileIndexDiff _ship_leave_depot_offs[] = {

   322

	TILE_XY(-1,0),

   323

	TILE_XY(0,-1),

   324

};

   325

   326

static void CheckShipLeaveDepot(Vehicle *v)

   327

{

   328

	uint tile;

   329

	int d;

   330

	uint m;

   331

   332

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

   333

		return;

   334

   335

	tile = v->tile;

   336

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

   337

   338

	// Check first side

   339

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

   340

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

   341

	// Check second side

   342

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

   343

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

   344

	} else {

   345

		return;

   346

	}

   347

	v->direction = (byte)m;

   348

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

   349

	v->vehstatus &= ~VS_HIDDEN;

   350

   351

	v->cur_speed = 0;

   352

	RecalcShipStuff(v);

   353

   354

	PlayShipSound(v);

   356

}

   357

   358

static bool ShipAccelerate(Vehicle *v)

   359

{

   360

	uint spd;

   361

	byte t;

   362

   363

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

   364

   365

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

   366

	if (spd != v->cur_speed) {

   367

		v->cur_speed = spd;

   368

		if (_patches.vehicle_speed)

   369

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

   370

	}

   371

   372

	// Decrease somewhat when turning

   373

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

   374

		spd = spd * 3 >> 2;

   375

	}

   376

   377

	if (spd == 0)

   378

		return false;

   379

   380

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

   381

		return true;

   382

   383

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

   384

   385

	return (t < v->progress);

   386

}

   387

   388

   389

static int32 EstimateShipCost(uint16 engine_type);

   390

   391

static void ShipEnterDepot(Vehicle *v)

   392

{

   393

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

   394

	v->vehstatus |= VS_HIDDEN;

   395

	v->cur_speed = 0;

   396

	RecalcShipStuff(v);

   397

   400

	InvalidateWindow(WC_VEHICLE_DETAILS, v->index);

   401

   402

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

   403

   404

	TriggerVehicle(v, VEHICLE_TRIGGER_DEPOT);

   405

   406

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

   407

		Order t;

   408

   409

		InvalidateWindow(WC_VEHICLE_VIEW, v->index);

   410

   411

		t = v->current_order;

   412

		v->current_order.type = OT_DUMMY;

   413

		v->current_order.flags = 0;

   414

   415

		if (t.flags & OF_UNLOAD) {

   416

			v->cur_order_index++;

   417

		} else if (t.flags & OF_FULL_LOAD) {

   418

			v->vehstatus |= VS_STOPPED;

   419

			if (v->owner == _local_player) {

   420

				SetDParam(0, v->unitnumber);

   421

				AddNewsItem(

   422

					STR_981C_SHIP_IS_WAITING_IN_DEPOT,

   423

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

   424

					v->index,

   425

					0);

   426

			}

   427

		}

   428

	}

   429

}

   430

   431

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

   432

{

   433

	/* Check if station was ever visited before */

   434

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

   435

		uint32 flags;

   436

		st->had_vehicle_of_type |= HVOT_SHIP;

   437

		SetDParam(0, st->index);

   438

		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);

   439

		AddNewsItem(

   440

			STR_9833_CITIZENS_CELEBRATE_FIRST,

   441

			flags,

   442

			v->index,

   443

			0);

   444

	}

   445

}

   446

   447

typedef struct {

   448

	uint skiptile;

   449

	uint dest_coords;

   450

	uint best_bird_dist;

   451

	uint best_length;

   452

} PathFindShip;

   453

   454

//extern void dbg_store_path();

   455

   456

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

   457

{

   458

	// Found dest?

   459

	if (tile == pfs->dest_coords) {

   460

		pfs->best_bird_dist = 0;

   461

   462

//		if (length < pfs->best_length)

   463

//			dbg_store_path();

   464

   465

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

   466

		return true;

   467

	}

   468

   469

	// Skip this tile in the calculation

   470

	if (tile != pfs->skiptile) {

   471

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

   472

	}

   473

   474

	return false;

   475

}

   476

   477

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

   478

	{ 0, 9, 2, 9 },

   479

	{ 9, 1, 9, 3 },

   480

	{ 9, 0, 3, 9 },

   481

	{ 1, 9, 9, 2 },

   482

	{ 3, 2, 9, 9 },

   483

	{ 9, 9, 1, 0 },

   484

};

   485

   486

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

   487

   488

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

   489

{

   490

	PathFindShip pfs;

   491

	int i, best_track;

   492

	uint best_bird_dist = 0;

   493

	uint best_length    = 0;

   494

	uint r;

   495

	byte ship_dir = v->direction & 3;

   496

   497

	pfs.dest_coords = v->dest_tile;

   498

	pfs.skiptile = skiptile;

   499

   500

	best_track = -1;

   501

   502

	do {

   503

		i = FIND_FIRST_BIT(bits);

   504

		bits = KILL_FIRST_BIT(bits);

   505

   506

		pfs.best_bird_dist = (uint)-1;

   507

		pfs.best_length = (uint)-1;

   508

   509

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

   510

   511

		if (best_track >= 0) {

   512

			if (pfs.best_bird_dist != 0) {

   513

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

   514

				if (pfs.best_bird_dist > best_bird_dist) goto bad;

   515

				if (pfs.best_bird_dist < best_bird_dist) goto good;

   516

			} else {

   517

				if (pfs.best_length > best_length) goto bad;