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

#include "table/sprites.h"

    21

    22

static void DisasterClearSquare(TileIndex tile)

    23

{

    24

	if (!EnsureNoVehicle(tile))

    25

		return;

    26

    27

	switch (GetTileType(tile)) {

    28

		case MP_RAILWAY:

    29

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

    30

			break;

    31

    32

		case MP_HOUSE: {

    33

			PlayerID p = _current_player;

    34

			_current_player = OWNER_NONE;

    35

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

    36

			_current_player = p;

    37

			break;

    38

		}

    39

    40

		case MP_TREES:

    41

		case MP_CLEAR:

    42

			DoClearSquare(tile);

    43

			break;

    44

    45

		default:

    46

			break;

    47

	}

    48

}

    49

    50

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

    51

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

    52

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

    53

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

    54

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

    55

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

    56

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

    57

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

    58

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

    59

    60

static const SpriteID * const _disaster_images[] = {

    61

	_disaster_images_1,_disaster_images_1,

    62

	_disaster_images_2,_disaster_images_2,

    63

	_disaster_images_3,_disaster_images_3,

    64

	_disaster_images_8,_disaster_images_8,_disaster_images_9,

    65

	_disaster_images_6,_disaster_images_6,

    66

	_disaster_images_7,_disaster_images_7,

    67

	_disaster_images_4,_disaster_images_5,

    68

};

    69

    70

static void DisasterVehicleUpdateImage(Vehicle *v)

    71

{

    72

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

    73

	if (img == 0)

    74

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

    75

	v->cur_image = img;

    76

}

    77

    78

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

    79

{

    80

	v->type = VEH_Disaster;

    81

	v->x_pos = x;

    82

	v->y_pos = y;

    83

	v->z_pos = z;

    84

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

    85

	v->direction = direction;

    86

	v->subtype = subtype;

    87

	v->x_offs = -1;

    88

	v->y_offs = -1;

    89

	v->sprite_width = 2;

    90

	v->sprite_height = 2;

    91

	v->z_height = 5;

    92

	v->owner = OWNER_NONE;

    93

	v->vehstatus = VS_UNCLICKABLE;

    94

	v->u.disaster.image_override = 0;

    95

	v->current_order.type = OT_NOTHING;

    96

	v->current_order.flags = 0;

    97

	v->current_order.station = 0;

    98

    99

	DisasterVehicleUpdateImage(v);

   100

	VehiclePositionChanged(v);

   101

	BeginVehicleMove(v);

   102

	EndVehicleMove(v);

   103

}

   104

   105

static void DeleteDisasterVeh(Vehicle *v)

   106

{

   107

	DeleteVehicleChain(v);

   108

}

   109

   110

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

   111

{

   112

	Vehicle *u;

   113

	int yt;

   114

   115

	BeginVehicleMove(v);

   116

	v->x_pos = x;

   117

	v->y_pos = y;

   118

	v->z_pos = z;

   119

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

   120

   121

	DisasterVehicleUpdateImage(v);

   122

	VehiclePositionChanged(v);

   123

	EndVehicleMove(v);

   124

   125

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

   126

		BeginVehicleMove(u);

   127

   128

		u->x_pos = x;

   129

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

   130

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

   131

		u->direction = v->direction;

   132

   133

		DisasterVehicleUpdateImage(u);

   134

		VehiclePositionChanged(u);

   135

		EndVehicleMove(u);

   136

   137

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

   138

			BeginVehicleMove(u);

   139

			u->x_pos = x;

   140

			u->y_pos = y;

   141

			u->z_pos = z + 5;

   142

			VehiclePositionChanged(u);

   143

			EndVehicleMove(u);

   144

		}

   145

	}

   146

}

   147

   148

   149

static void DisasterTick_Zeppeliner(Vehicle *v)

   150

{

   151

	GetNewVehiclePosResult gp;

   152

	Station *st;

   153

	int x,y;

   154

	byte z;

   155

	TileIndex tile;

   156

   157

	++v->tick_counter;

   158

   159

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

   160

		if (v->tick_counter&1)

   161

			return;

   162

   163

		GetNewVehiclePos(v, &gp);

   164

   165

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

   166

   167

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

   168

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

   169

				v->current_order.station = 2;

   170

				v->age = 0;

   171

			}

   172

   173

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

   174

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

   175

			}

   176

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

   177

			tile = v->tile; /**/

   178

   179

			if (IsValidTile(tile) &&

   180

					IsTileType(tile, MP_STATION) &&

   181

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

   182

					IS_HUMAN_PLAYER(GetTileOwner(tile))) {

   183

				v->current_order.station = 1;

   184

				v->age = 0;

   185

   186

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

   187

				AddNewsItem(STR_B000_ZEPPELIN_DISASTER_AT,

   188

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

   189

					v->index,

   190

					0);

   191

			}

   192

		}

   193

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

   194

			DeleteDisasterVeh(v);

   195

		return;

   196

	}

   197

   198

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

   199

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

   200

			return;

   201

   202

		tile = v->tile; /**/

   203

   204

		if (IsValidTile(tile) &&

   205

				IsTileType(tile, MP_STATION) &&

   206

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

   207

				IS_HUMAN_PLAYER(GetTileOwner(tile))) {

   208

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

   209

			CLRBITS(st->airport_flags, RUNWAY_IN_block);

   210

		}

   211

   212

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

   213

		DeleteDisasterVeh(v);

   214

		return;

   215

	}

   216

   217

	x = v->x_pos;

   218

	y = v->y_pos;

   219

	z = GetSlopeZ(x,y);

   220

	if (z < v->z_pos)

   221

		z = v->z_pos - 1;

   222

	SetDisasterVehiclePos(v, x, y, z);

   223

   224

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

   225

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

   226

		SndPlayVehicleFx(SND_12_EXPLOSION, v);

   227

		v->u.disaster.image_override = SPR_BLIMP_CRASHING;

   228

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

   229

		v->u.disaster.image_override = SPR_BLIMP_CRASHED;

   230

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

   231

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

   232

			uint32 r = Random();

   233

   234

			CreateEffectVehicleRel(v,

   235

				GB(r, 0, 4) - 7,

   236

				GB(r, 4, 4) - 7,

   237

				GB(r, 8, 3) + 5,

   238

				EV_EXPLOSION_SMALL);

   239

		}

   240

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

   241

		v->current_order.station = 3;

   242

		v->age = 0;

   243

	}

   244

   245

	tile = v->tile;/**/

   246

	if (IsValidTile(tile) &&

   247

			IsTileType(tile, MP_STATION) &&

   248

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

   249

			IS_HUMAN_PLAYER(GetTileOwner(tile))) {

   250

   251

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

   252

		SETBITS(st->airport_flags, RUNWAY_IN_block);

   253

	}

   254

}

   255

   256

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

   257

// a road vehicle which it targets.

   258

static void DisasterTick_UFO(Vehicle *v)

   259

{

   260

	GetNewVehiclePosResult gp;

   261

	Vehicle *u;

   262

	uint dist;

   263

	byte z;

   264

   265

	v->u.disaster.image_override = (++v->tick_counter & 8) ? SPR_UFO_SMALL_SCOUT_DARKER : SPR_UFO_SMALL_SCOUT;

   266

   267

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

   268

// fly around randomly

   269

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

   270

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

   271

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

   272

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

   273

			GetNewVehiclePos(v, &gp);

   274

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

   275

			return;

   276

		}

   277

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

   278

			v->dest_tile = RandomTile();

   279

			return;

   280

		}

   281

		v->current_order.station = 1;

   282

   283

		FOR_ALL_VEHICLES(u) {

   284

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

   285

				v->dest_tile = u->index;

   286

				v->age = 0;

   287

				return;

   288

			}

   289

		}

   290

   291

		DeleteDisasterVeh(v);

   292

	} else {

   293

// target a vehicle

   294

		u = GetVehicle(v->dest_tile);

   295

		if (u->type != VEH_Road) {

   296

			DeleteDisasterVeh(v);

   297

			return;

   298

		}

   299

   300

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

   301

   302

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

   303

			u->breakdown_ctr = 3;

   304

			u->breakdown_delay = 140;

   305

		}

   306

   307

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

   308

		GetNewVehiclePos(v, &gp);

   309

   310

		z = v->z_pos;

   311

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

   312

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

   313

   314

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

   315

			v->age++;

   316

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

   317

				u->u.road.crashed_ctr++;

   318

				u->vehstatus |= VS_CRASHED;

   319

   320

				AddNewsItem(STR_B001_ROAD_VEHICLE_DESTROYED,

   321

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

   322

					u->index,

   323

					0);

   324

			}

   325

		}

   326

   327

// destroy?

   328

		if (v->age > 50) {

   329

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

   330

			SndPlayVehicleFx(SND_12_EXPLOSION, v);

   331

			DeleteDisasterVeh(v);

   332

		}

   333

	}

   334

}

   335

   336

static void DestructIndustry(Industry *i)

   337

{

   338

	TileIndex tile;

   339

   340

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

   341

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

   342

			_m[tile].m1 = 0;

   343

			MarkTileDirtyByTile(tile);

   344

		}

   345

	}

   346

}

   347

   348

// Airplane which destroys an oil refinery

   349

static void DisasterTick_2(Vehicle *v)

   350

{

   351

	GetNewVehiclePosResult gp;

   352

   353

	v->tick_counter++;

   354

	v->u.disaster.image_override =

   355

		(v->current_order.station == 1 && v->tick_counter&4) ? SPR_F_15_FIRING : 0;

   356

   357

	GetNewVehiclePos(v, &gp);

   358

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

   359

   360

	if (gp.x < -160) {

   361

		DeleteDisasterVeh(v);

   362

		return;

   363

	}

   364

   365

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

   366

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

   367

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

   368

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

   369

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

   370

			uint32 r = Random();

   371

   372

			CreateEffectVehicleAbove(

   373

				GB(r,  0, 6) + x,

   374

				GB(r,  6, 6) + y,

   375

				GB(r, 12, 4),

   376

				EV_EXPLOSION_SMALL);

   377

   378

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

   379

				v->current_order.station = 3;

   380

		}

   381

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

   382

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

   383

			Industry *i;

   384

   385

			v->current_order.station = 2;

   386

			v->age = 0;

   387

   388

			i = GetIndustry(v->dest_tile);

   389

			DestructIndustry(i);

   390

   391

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

   392

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

   393

			SndPlayTileFx(SND_12_EXPLOSION, i->xy);

   394

		}

   395

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

   396

		int x,y;

   397

		TileIndex tile;

   398

		int ind;

   399

   400

		x = v->x_pos - 15*16;

   401

		y = v->y_pos;

   402

   403

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

   404

			return;

   405

   406

		tile = TileVirtXY(x, y);

   407

		if (!IsTileType(tile, MP_INDUSTRY))

   408

			return;

   409

   410

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

   411

   412

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

   413

			v->current_order.station = 1;

   414

			v->age = 0;

   415

		}

   416

	}

   417

}

   418

   419

// Helicopter which destroys a factory

   420

static void DisasterTick_3(Vehicle *v)

   421

{

   422

	GetNewVehiclePosResult gp;

   423

   424

	v->tick_counter++;

   425

	v->u.disaster.image_override =

   426

		(v->current_order.station == 1 && v->tick_counter&4) ? SPR_AH_64A_FIRING : 0;

   427

   428

	GetNewVehiclePos(v, &gp);

   429

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

   430

   431

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

   432

		DeleteDisasterVeh(v);

   433

		return;

   434

	}

   435

   436

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

   437

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

   438

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

   439

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

   440

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

   441

			uint32 r = Random();

   442

   443

			CreateEffectVehicleAbove(

   444

				GB(r,  0, 6) + x,

   445

				GB(r,  6, 6) + y,

   446

				GB(r, 12, 4),

   447

				EV_EXPLOSION_SMALL);

   448

   449

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

   450

				v->current_order.station = 3;

   451

		}

   452

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

   453

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

   454

			Industry *i;

   455

   456

			v->current_order.station = 2;

   457

			v->age = 0;

   458

   459

			i = GetIndustry(v->dest_tile);

   460

			DestructIndustry(i);

   461

   462

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

   463

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

   464

			SndPlayTileFx(SND_12_EXPLOSION, i->xy);

   465

		}

   466

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

   467

		int x,y;

   468

		TileIndex tile;

   469

		int ind;

   470

   471

		x = v->x_pos - 15*16;

   472

		y = v->y_pos;

   473

   474

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

   475

			return;

   476

   477

		tile = TileVirtXY(x, y);

   478

		if (!IsTileType(tile, MP_INDUSTRY))

   479

			return;

   480

   481

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

   482

   483

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

   484

			v->current_order.station = 1;

   485

			v->age = 0;

   486

		}

   487

	}

   488

}

   489

   490

// Helicopter rotor blades

   491

static void DisasterTick_3b(Vehicle *v)

   492

{

   493

	if (++v->tick_counter & 1)

   494

		return;

   495

   496

	if (++v->cur_image > SPR_ROTOR_MOVING_3) v->cur_image = SPR_ROTOR_MOVING_1;

   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;