1

/* $Id$ */

     2

     3

#include "stdafx.h"

     4

#include "openttd.h"

     5

#include "table/strings.h"

     6

#include "functions.h"

     7

#include "map.h"

     8

#include "tile.h"

     9

#include "vehicle.h"

    10

#include "command.h"

    11

#include "news.h"

    12

#include "station.h"

    13

#include "waypoint.h"

    14

#include "town.h"

    15

#include "industry.h"

    16

#include "player.h"

    17

#include "airport_movement.h"

    18

#include "sound.h"

    19

#include "variables.h"

    20

    21

static void DisasterClearSquare(TileIndex tile)

    22

{

    23

	if (!EnsureNoVehicle(tile))

    24

		return;

    25

    26

	switch (GetTileType(tile)) {

    27

		case MP_RAILWAY:

    28

			if (IS_HUMAN_PLAYER(GetTileOwner(tile)) && !IsRailWaypoint(_m[tile].m5)) DoClearSquare(tile);

    29

			break;

    30

    31

		case MP_HOUSE: {

    32

			PlayerID p = _current_player;

    33

			_current_player = OWNER_NONE;

    34

			DoCommandByTile(tile, 0, 0, DC_EXEC, CMD_LANDSCAPE_CLEAR);

    35

			_current_player = p;

    36

			break;

    37

		}

    38

    39

		case MP_TREES:

    40

		case MP_CLEAR:

    41

			DoClearSquare(tile);

    42

			break;

    43

    44

		default:

    45

			break;

    46

	}

    47

}

    48

    49

static const SpriteID _disaster_images_1[] = {0xF41,0xF41,0xF41,0xF41,0xF41,0xF41,0xF41,0xF41};

    50

static const SpriteID _disaster_images_2[] = {0xF44,0xF44,0xF44,0xF44,0xF44,0xF44,0xF44,0xF44};

    51

static const SpriteID _disaster_images_3[] = {0xF4E,0xF4E,0xF4E,0xF4E,0xF4E,0xF4E,0xF4E,0xF4E};

    52

static const SpriteID _disaster_images_4[] = {0xF46,0xF46,0xF47,0xF47,0xF48,0xF48,0xF49,0xF49};

    53

static const SpriteID _disaster_images_5[] = {0xF4A,0xF4A,0xF4B,0xF4B,0xF4C,0xF4C,0xF4D,0xF4D};

    54

static const SpriteID _disaster_images_6[] = {0xF50,0xF50,0xF50,0xF50,0xF50,0xF50,0xF50,0xF50};

    55

static const SpriteID _disaster_images_7[] = {0xF51,0xF51,0xF51,0xF51,0xF51,0xF51,0xF51,0xF51};

    56

static const SpriteID _disaster_images_8[] = {0xF52,0xF52,0xF52,0xF52,0xF52,0xF52,0xF52,0xF52};

    57

static const SpriteID _disaster_images_9[] = {0xF3E,0xF3E,0xF3E,0xF3E,0xF3E,0xF3E,0xF3E,0xF3E};

    58

    59

static const SpriteID * const _disaster_images[] = {

    60

	_disaster_images_1,_disaster_images_1,

    61

	_disaster_images_2,_disaster_images_2,

    62

	_disaster_images_3,_disaster_images_3,

    63

	_disaster_images_8,_disaster_images_8,_disaster_images_9,

    64

	_disaster_images_6,_disaster_images_6,

    65

	_disaster_images_7,_disaster_images_7,

    66

	_disaster_images_4,_disaster_images_5,

    67

};

    68

    69

static void DisasterVehicleUpdateImage(Vehicle *v)

    70

{

    71

	int img = v->u.disaster.image_override;

    72

	if (img == 0)

    73

		img = _disaster_images[v->subtype][v->direction];

    74

	v->cur_image = img;

    75

}

    76

    77

static void InitializeDisasterVehicle(Vehicle *v, int x, int y, byte z, byte direction, byte subtype)

    78

{

    79

	v->type = VEH_Disaster;

    80

	v->x_pos = x;

    81

	v->y_pos = y;

    82

	v->z_pos = z;

    83

	v->tile = TileVirtXY(x, y);

    84

	v->direction = direction;

    85

	v->subtype = subtype;

    86

	v->x_offs = -1;

    87

	v->y_offs = -1;

    88

	v->sprite_width = 2;

    89

	v->sprite_height = 2;

    90

	v->z_height = 5;

    91

	v->owner = OWNER_NONE;

    92

	v->vehstatus = VS_UNCLICKABLE;

    93

	v->u.disaster.image_override = 0;

    94

	v->current_order.type = OT_NOTHING;

    95

	v->current_order.flags = 0;

    96

	v->current_order.station = 0;

    97

    98

	DisasterVehicleUpdateImage(v);

    99

	VehiclePositionChanged(v);

   100

	BeginVehicleMove(v);

   101

	EndVehicleMove(v);

   102

}

   103

   104

static void DeleteDisasterVeh(Vehicle *v)

   105

{

   106

	DeleteVehicleChain(v);

   107

}

   108

   109

static void SetDisasterVehiclePos(Vehicle *v, int x, int y, byte z)

   110

{

   111

	Vehicle *u;

   112

	int yt;

   113

   114

	BeginVehicleMove(v);

   115

	v->x_pos = x;

   116

	v->y_pos = y;

   117

	v->z_pos = z;

   118

	v->tile = TileVirtXY(x, y);

   119

   120

	DisasterVehicleUpdateImage(v);

   121

	VehiclePositionChanged(v);

   122

	EndVehicleMove(v);

   123

   124

	if ( (u=v->next) != NULL) {

   125

		BeginVehicleMove(u);

   126

   127

		u->x_pos = x;

   128

		u->y_pos = yt = y - 1 - (max(z - GetSlopeZ(x, y-1), 0) >> 3);

   129

		u->z_pos = GetSlopeZ(x,yt);

   130

		u->direction = v->direction;

   131

   132

		DisasterVehicleUpdateImage(u);

   133

		VehiclePositionChanged(u);

   134

		EndVehicleMove(u);

   135

   136

		if ( (u=u->next) != NULL) {

   137

			BeginVehicleMove(u);

   138

			u->x_pos = x;

   139

			u->y_pos = y;

   140

			u->z_pos = z + 5;

   141

			VehiclePositionChanged(u);

   142

			EndVehicleMove(u);

   143

		}

   144

	}

   145

}

   146

   147

   148

static void DisasterTick_Zeppeliner(Vehicle *v)

   149

{

   150

	GetNewVehiclePosResult gp;

   151

	Station *st;

   152

	int x,y;

   153

	byte z;

   154

	TileIndex tile;

   155

   156

	++v->tick_counter;

   157

   158

	if (v->current_order.station < 2) {

   159

		if (v->tick_counter&1)

   160

			return;

   161

   162

		GetNewVehiclePos(v, &gp);

   163

   164

		SetDisasterVehiclePos(v, gp.x, gp.y, v->z_pos);

   165

   166

		if (v->current_order.station == 1) {

   167

			if (++v->age == 38) {

   168

				v->current_order.station = 2;

   169

				v->age = 0;

   170

			}

   171

   172

			if ((v->tick_counter&7)==0) {

   173

				CreateEffectVehicleRel(v, 0, -17, 2, EV_SMOKE);

   174

			}

   175

		} else if (v->current_order.station == 0) {

   176

			tile = v->tile; /**/

   177

   178

			if (IsValidTile(tile) &&

   179

					IsTileType(tile, MP_STATION) &&

   180

					IS_BYTE_INSIDE(_m[tile].m5, 8, 0x43) &&

   181

					IS_HUMAN_PLAYER(GetTileOwner(tile))) {

   182

				v->current_order.station = 1;

   183

				v->age = 0;

   184

   185

				SetDParam(0, _m[tile].m2);

   186

				AddNewsItem(STR_B000_ZEPPELIN_DISASTER_AT,

   187

					NEWS_FLAGS(NM_THIN, NF_VIEWPORT|NF_VEHICLE, NT_ACCIDENT, 0),

   188

					v->index,

   189

					0);

   190

			}

   191

		}

   192

		if (v->y_pos >= ((int)MapSizeY() + 9) * 16 - 1)

   193

			DeleteDisasterVeh(v);

   194

		return;

   195

	}

   196

   197

	if (v->current_order.station > 2) {

   198

		if (++v->age <= 13320)

   199

			return;

   200

   201

		tile = v->tile; /**/

   202

   203

		if (IsValidTile(tile) &&

   204

				IsTileType(tile, MP_STATION) &&

   205

				IS_BYTE_INSIDE(_m[tile].m5, 8, 0x43) &&

   206

				IS_HUMAN_PLAYER(GetTileOwner(tile))) {

   207

			st = GetStation(_m[tile].m2);

   208

			CLRBITS(st->airport_flags, RUNWAY_IN_block);

   209

		}

   210

   211

		SetDisasterVehiclePos(v, v->x_pos, v->y_pos, v->z_pos);

   212

		DeleteDisasterVeh(v);

   213

		return;

   214

	}

   215

   216

	x = v->x_pos;

   217

	y = v->y_pos;

   218

	z = GetSlopeZ(x,y);

   219

	if (z < v->z_pos)

   220

		z = v->z_pos - 1;

   221

	SetDisasterVehiclePos(v, x, y, z);

   222

   223

	if (++v->age == 1) {

   224

		CreateEffectVehicleRel(v, 0, 7, 8, EV_EXPLOSION_LARGE);

   225

		SndPlayVehicleFx(SND_12_EXPLOSION, v);

   226

		v->u.disaster.image_override = 0xF42;

   227

	} else if (v->age == 70) {

   228

		v->u.disaster.image_override = 0xF43;

   229

	} else if (v->age <= 300) {

   230

		if (!(v->tick_counter&7)) {

   231

			uint32 r = Random();

   232

   233

			CreateEffectVehicleRel(v,

   234

				GB(r, 0, 4) - 7,

   235

				GB(r, 4, 4) - 7,

   236

				GB(r, 8, 3) + 5,

   237

				EV_EXPLOSION_SMALL);

   238

		}

   239

	} else if (v->age == 350) {

   240

		v->current_order.station = 3;

   241

		v->age = 0;

   242

	}

   243

   244

	tile = v->tile;/**/

   245

	if (IsValidTile(tile) &&

   246

			IsTileType(tile, MP_STATION) &&

   247

			IS_BYTE_INSIDE(_m[tile].m5, 8, 0x43) &&

   248

			IS_HUMAN_PLAYER(GetTileOwner(tile))) {

   249

   250

		st = GetStation(_m[tile].m2);

   251

		SETBITS(st->airport_flags, RUNWAY_IN_block);

   252

	}

   253

}

   254

   255

// UFO starts in the middle, and flies around a bit until it locates

   256

// a road vehicle which it targets.

   257

static void DisasterTick_UFO(Vehicle *v)

   258

{

   259

	GetNewVehiclePosResult gp;

   260

	Vehicle *u;

   261

	uint dist;

   262

	byte z;

   263

   264

	v->u.disaster.image_override = (++v->tick_counter & 8) ? 0xF45 : 0xF44;

   265

   266

	if (v->current_order.station == 0) {

   267

// fly around randomly

   268

		int x = TileX(v->dest_tile) * 16;

   269

		int y = TileY(v->dest_tile) * 16;

   270

		if (abs(x - v->x_pos) + abs(y - v->y_pos) >= 16) {

   271

			v->direction = GetDirectionTowards(v, x, y);

   272

			GetNewVehiclePos(v, &gp);

   273

			SetDisasterVehiclePos(v, gp.x, gp.y, v->z_pos);

   274

			return;

   275

		}

   276

		if (++v->age < 6) {

   277

			v->dest_tile = RandomTile();

   278

			return;

   279

		}

   280

		v->current_order.station = 1;

   281

   282

		FOR_ALL_VEHICLES(u) {

   283

			if (u->type == VEH_Road && IS_HUMAN_PLAYER(u->owner)) {

   284

				v->dest_tile = u->index;

   285

				v->age = 0;

   286

				return;

   287

			}

   288

		}

   289

   290

		DeleteDisasterVeh(v);

   291

	} else {

   292

// target a vehicle

   293

		u = GetVehicle(v->dest_tile);

   294

		if (u->type != VEH_Road) {

   295

			DeleteDisasterVeh(v);

   296

			return;

   297

		}

   298

   299

		dist = abs(v->x_pos - u->x_pos) + abs(v->y_pos - u->y_pos);

   300

   301

		if (dist < 16 && !(u->vehstatus&VS_HIDDEN) && u->breakdown_ctr==0) {

   302

			u->breakdown_ctr = 3;

   303

			u->breakdown_delay = 140;

   304

		}

   305

   306

		v->direction = GetDirectionTowards(v, u->x_pos, u->y_pos);

   307

		GetNewVehiclePos(v, &gp);

   308

   309

		z = v->z_pos;

   310

		if (dist <= 16 && z > u->z_pos) z--;

   311

		SetDisasterVehiclePos(v, gp.x, gp.y, z);

   312

   313

		if (z <= u->z_pos && (u->vehstatus&VS_HIDDEN)==0) {

   314

			v->age++;

   315

			if (u->u.road.crashed_ctr == 0) {

   316

				u->u.road.crashed_ctr++;

   317

				u->vehstatus |= VS_CRASHED;

   318

   319

				AddNewsItem(STR_B001_ROAD_VEHICLE_DESTROYED,

   320

					NEWS_FLAGS(NM_THIN, NF_VIEWPORT|NF_VEHICLE, NT_ACCIDENT, 0),

   321

					u->index,

   322

					0);

   323

			}

   324

		}

   325

   326

// destroy?

   327

		if (v->age > 50) {

   328

			CreateEffectVehicleRel(v, 0, 7, 8, EV_EXPLOSION_LARGE);

   329

			SndPlayVehicleFx(SND_12_EXPLOSION, v);

   330

			DeleteDisasterVeh(v);

   331

		}

   332

	}

   333

}

   334

   335

static void DestructIndustry(Industry *i)

   336

{

   337

	TileIndex tile;

   338

   339

	for (tile = 0; tile != MapSize(); tile++) {

   340

		if (IsTileType(tile, MP_INDUSTRY) && _m[tile].m2 == i->index) {

   341

			_m[tile].m1 = 0;

   342

			MarkTileDirtyByTile(tile);

   343

		}

   344

	}

   345

}

   346

   347

// Airplane which destroys an oil refinery

   348

static void DisasterTick_2(Vehicle *v)

   349

{

   350

	GetNewVehiclePosResult gp;

   351

   352

	v->tick_counter++;

   353

	v->u.disaster.image_override =

   354

		(v->current_order.station == 1 && v->tick_counter&4) ? 0xF4F : 0;

   355

   356

	GetNewVehiclePos(v, &gp);

   357

	SetDisasterVehiclePos(v, gp.x, gp.y, v->z_pos);

   358

   359

	if (gp.x < -160) {

   360

		DeleteDisasterVeh(v);

   361

		return;

   362

	}

   363

   364

	if (v->current_order.station == 2) {

   365

		if (!(v->tick_counter&3)) {

   366

			Industry *i = GetIndustry(v->dest_tile);

   367

			int x = TileX(i->xy) * 16;

   368

			int y = TileY(i->xy) * 16;

   369

			uint32 r = Random();

   370

   371

			CreateEffectVehicleAbove(

   372

				GB(r,  0, 6) + x,

   373

				GB(r,  6, 6) + y,

   374

				GB(r, 12, 4),

   375

				EV_EXPLOSION_SMALL);

   376

   377

			if (++v->age >= 55)

   378

				v->current_order.station = 3;

   379

		}

   380

	} else if (v->current_order.station == 1) {

   381

		if (++v->age == 112) {

   382

			Industry *i;

   383

   384

			v->current_order.station = 2;

   385

			v->age = 0;

   386

   387

			i = GetIndustry(v->dest_tile);

   388

			DestructIndustry(i);

   389

   390

			SetDParam(0, i->town->index);

   391

			AddNewsItem(STR_B002_OIL_REFINERY_EXPLOSION, NEWS_FLAGS(NM_THIN,NF_VIEWPORT|NF_TILE,NT_ACCIDENT,0), i->xy, 0);

   392

			SndPlayTileFx(SND_12_EXPLOSION, i->xy);

   393

		}

   394

	} else if (v->current_order.station == 0) {

   395

		int x,y;

   396

		TileIndex tile;

   397

		int ind;

   398

   399

		x = v->x_pos - 15*16;

   400

		y = v->y_pos;

   401

   402

		if ( (uint)x > MapMaxX() * 16-1)

   403

			return;

   404

   405

		tile = TileVirtXY(x, y);

   406

		if (!IsTileType(tile, MP_INDUSTRY))

   407

			return;

   408

   409

		v->dest_tile = ind = _m[tile].m2;

   410

   411

		if (GetIndustry(ind)->type == IT_OIL_REFINERY) {

   412

			v->current_order.station = 1;

   413

			v->age = 0;

   414

		}

   415

	}

   416

}

   417

   418

// Helicopter which destroys a factory

   419

static void DisasterTick_3(Vehicle *v)

   420

{

   421

	GetNewVehiclePosResult gp;

   422

   423

	v->tick_counter++;

   424

	v->u.disaster.image_override =

   425

		(v->current_order.station == 1 && v->tick_counter&4) ? 0xF53 : 0;

   426

   427

	GetNewVehiclePos(v, &gp);

   428

	SetDisasterVehiclePos(v, gp.x, gp.y, v->z_pos);

   429

   430

	if (gp.x > (int)MapSizeX() * 16 + 9*16 - 1) {

   431

		DeleteDisasterVeh(v);

   432

		return;

   433

	}

   434

   435

	if (v->current_order.station == 2) {

   436

		if (!(v->tick_counter&3)) {

   437

			Industry *i = GetIndustry(v->dest_tile);

   438

			int x = TileX(i->xy) * 16;

   439

			int y = TileY(i->xy) * 16;

   440

			uint32 r = Random();

   441

   442

			CreateEffectVehicleAbove(

   443

				GB(r,  0, 6) + x,

   444

				GB(r,  6, 6) + y,

   445

				GB(r, 12, 4),

   446

				EV_EXPLOSION_SMALL);

   447

   448

			if (++v->age >= 55)

   449

				v->current_order.station = 3;

   450

		}

   451

	} else if (v->current_order.station == 1) {

   452

		if (++v->age == 112) {

   453

			Industry *i;

   454

   455

			v->current_order.station = 2;

   456

			v->age = 0;

   457

   458

			i = GetIndustry(v->dest_tile);

   459

			DestructIndustry(i);

   460

   461

			SetDParam(0, i->town->index);

   462

			AddNewsItem(STR_B003_FACTORY_DESTROYED_IN_SUSPICIOUS, NEWS_FLAGS(NM_THIN,NF_VIEWPORT|NF_TILE,NT_ACCIDENT,0), i->xy, 0);

   463

			SndPlayTileFx(SND_12_EXPLOSION, i->xy);

   464

		}

   465

	} else if (v->current_order.station == 0) {

   466

		int x,y;

   467

		TileIndex tile;

   468

		int ind;

   469

   470

		x = v->x_pos - 15*16;

   471

		y = v->y_pos;

   472

   473

		if ( (uint)x > MapMaxX() * 16-1)

   474

			return;

   475

   476

		tile = TileVirtXY(x, y);

   477

		if (!IsTileType(tile, MP_INDUSTRY))

   478

			return;

   479

   480

		v->dest_tile = ind = _m[tile].m2;

   481

   482

		if (GetIndustry(ind)->type == IT_FACTORY) {

   483

			v->current_order.station = 1;

   484

			v->age = 0;

   485

		}

   486

	}

   487

}

   488

   489

// Helicopter rotor blades

   490

static void DisasterTick_3b(Vehicle *v)

   491

{

   492

	if (++v->tick_counter & 1)

   493

		return;

   494

   495

	if (++v->cur_image == 0xF40 + 1)

   496

		v->cur_image = 0xF3E;

   497

   498

	VehiclePositionChanged(v);

   499

	BeginVehicleMove(v);

   500

	EndVehicleMove(v);

   501

}

   502

   503

// Big UFO which lands on a piece of rail.

   504

// Will be shot down by a plane

   505

static void DisasterTick_4(Vehicle *v)

   506

{

   507

	GetNewVehiclePosResult gp;

   508

	byte z;