1

#include "stdafx.h"

     2

#include "ttd.h"

     3

#include "table/strings.h"

     4

#include "vehicle.h"

     5

#include "viewport.h"

     6

#include "command.h"

     7

#include "pathfind.h"

     8

#include "town.h"

     9

#include "sound.h"

    10

#include "station.h"

    11

#include "sprite.h"

    12

    13

extern uint16 _custom_sprites_base;

    14

    15

void ShowTrainDepotWindow(uint tile);

    16

    17

enum { /* These values are bitmasks for the map5 byte */

    18

	RAIL_TYPE_NORMAL = 0,

    19

	RAIL_TYPE_SIGNALS = 0x40,

    20

	RAIL_TYPE_SPECIAL = 0x80, // If this bit is set, then it's not a regular track.

    21

	RAIL_TYPE_DEPOT = 0xC0,

    22

	RAIL_TYPE_MASK = 0xC0,

    23

    24

	RAIL_BIT_DIAG1 = 1,  // 0

    25

	RAIL_BIT_DIAG2 = 2,  // 1

    26

	RAIL_BIT_UPPER = 4,  // 2

    27

	RAIL_BIT_LOWER = 8,  // 3

    28

	RAIL_BIT_LEFT  = 16, // 4

    29

	RAIL_BIT_RIGHT = 32, // 5

    30

	RAIL_BIT_MASK = 0x3F,

    31

    32

	RAIL_DEPOT_TRACK_MASK = 1,

    33

	RAIL_DEPOT_DIR = 3,

    34

	RAIL_DEPOT_UNUSED_BITS = 0x3C,

    35

    36

	RAIL_TYPE_WAYPOINT = 0xC4,

    37

	RAIL_WAYPOINT_TRACK_MASK = 1,

    38

	RAIL_WAYPOINT_UNUSED_BITS = 0x3E,

    39

};

    40

    41

#define IS_RAIL_DEPOT(x) (((x) & (RAIL_TYPE_DEPOT|RAIL_DEPOT_UNUSED_BITS)) == RAIL_TYPE_DEPOT)

    42

#define IS_RAIL_WAYPOINT(x) (((x) & (RAIL_TYPE_WAYPOINT|RAIL_WAYPOINT_UNUSED_BITS)) == RAIL_TYPE_WAYPOINT)

    43

    44

/* Format of rail map5 byte.

    45

 * 00 abcdef  => Normal rail

    46

 * 01 abcdef  => Rail with signals

    47

 * 10 ??????  => Unused

    48

 * 11 ????dd  => Depot

    49

 *

    50

 * abcdef is a bitmask, which contains ones for all present tracks. Below the

    51

 * value for each track is given.

    52

 */

    53

    54

/*         4

    55

 *     ---------

    56

 *    |\       /|

    57

 *    | \    1/ |

    58

 *    |  \   /  |

    59

 *    |   \ /   |

    60

 *  16|    \    |32

    61

 *    |   / \2  |

    62

 *    |  /   \  |

    63

 *    | /     \ |

    64

 *    |/       \|

    65

 *     ---------

    66

 *         8

    67

 */

    68

    69

    70

// Constants for lower part of Map2 byte.

    71

enum RailMap2Lower4 {

    72

	RAIL_MAP2LO_GROUND_MASK = 0xF,

    73

	RAIL_GROUND_BROWN = 0,

    74

	RAIL_GROUND_GREEN = 1,

    75

	RAIL_GROUND_FENCE_NW = 2,

    76

	RAIL_GROUND_FENCE_SE = 3,

    77

	RAIL_GROUND_FENCE_SENW = 4,

    78

	RAIL_GROUND_FENCE_NE = 5,

    79

	RAIL_GROUND_FENCE_SW = 6,

    80

	RAIL_GROUND_FENCE_NESW = 7,

    81

	RAIL_GROUND_FENCE_VERT1 = 8,

    82

	RAIL_GROUND_FENCE_VERT2 = 9,

    83

	RAIL_GROUND_FENCE_HORIZ1 = 10,

    84

	RAIL_GROUND_FENCE_HORIZ2 = 11,

    85

	RAIL_GROUND_ICE_DESERT = 12,

    86

};

    87

    88

    89

/* MAP2 byte:    abcd???? => Signal On? Same coding as map3lo

    90

 * MAP3LO byte:  abcd???? => Signal Exists?

    91

 *				 a and b are for diagonals, upper and left,

    92

 *				 one for each direction. (ie a == NE->SW, b ==

    93

 *				 SW->NE, or v.v., I don't know. b and c are

    94

 *				 similar for lower and right.

    95

 * MAP2 byte:    ????abcd => Type of ground.

    96

 * MAP3LO byte:  ????abcd => Type of rail.

    97

 * MAP5:         00abcdef => rail

    98

 *               01abcdef => rail w/ signals

    99

 *               10uuuuuu => unused

   100

 *               11uuuudd => rail depot

   101

 */

   102

   103

static bool CheckTrackCombination(byte map5, byte trackbits, byte flags)

   104

{

   105

	_error_message = STR_1001_IMPOSSIBLE_TRACK_COMBINATION;

   106

   107

	if ((map5&RAIL_TYPE_MASK) == RAIL_TYPE_SIGNALS) {

   108

   109

		if (map5 & trackbits) {

   110

			_error_message = STR_1007_ALREADY_BUILT;

   111

			return false;

   112

		}

   113

   114

		map5 |= trackbits;

   115

		return (map5 == (RAIL_TYPE_SIGNALS|RAIL_BIT_UPPER|RAIL_BIT_LOWER) || map5 == (RAIL_TYPE_SIGNALS|RAIL_BIT_LEFT|RAIL_BIT_RIGHT));

   116

   117

	} else if ((map5&RAIL_TYPE_MASK) == RAIL_TYPE_NORMAL) {

   118

		_error_message = STR_1007_ALREADY_BUILT;

   119

		if (map5 & trackbits)

   120

			return false;

   121

   122

		// Computer players are not allowed to intersect pieces of rail.

   123

		if (!(flags&DC_NO_RAIL_OVERLAP))

   124

			return true;

   125

   126

		map5 |= trackbits;

   127

		return (map5 == (RAIL_BIT_UPPER|RAIL_BIT_LOWER) || map5 == (RAIL_BIT_LEFT|RAIL_BIT_RIGHT));

   128

	} else {

   129

		return false;

   130

	}

   131

}

   132

   133

   134

static const byte _valid_tileh_slopes[4][15] = {

   135

   136

// set of normal ones

   137

{

   138

	RAIL_BIT_DIAG1|RAIL_BIT_DIAG2|RAIL_BIT_UPPER|RAIL_BIT_LOWER|RAIL_BIT_LEFT|RAIL_BIT_RIGHT,

   139

	RAIL_BIT_RIGHT,

   140

	RAIL_BIT_UPPER,

   141

	RAIL_BIT_DIAG1,

   142

   143

	RAIL_BIT_LEFT,

   144

	0,

   145

	RAIL_BIT_DIAG2,

   146

	RAIL_BIT_LOWER,

   147

   148

	RAIL_BIT_LOWER,

   149

	RAIL_BIT_DIAG2,

   150

	0,

   151

	RAIL_BIT_LEFT,

   152

   153

	RAIL_BIT_DIAG1,

   154

	RAIL_BIT_UPPER,

   155

	RAIL_BIT_RIGHT,

   156

},

   157

   158

// allowed rail for an evenly raised platform

   159

{

   160

	0,

   161

	RAIL_BIT_LEFT,

   162

	RAIL_BIT_LOWER,

   163

	RAIL_BIT_DIAG2 | RAIL_BIT_LOWER | RAIL_BIT_LEFT,

   164

   165

	RAIL_BIT_RIGHT,

   166

	RAIL_BIT_DIAG1|RAIL_BIT_DIAG2|RAIL_BIT_UPPER|RAIL_BIT_LOWER|RAIL_BIT_LEFT|RAIL_BIT_RIGHT,

   167

	RAIL_BIT_DIAG1 | RAIL_BIT_LOWER | RAIL_BIT_RIGHT,

   168

	RAIL_BIT_DIAG1|RAIL_BIT_DIAG2|RAIL_BIT_UPPER|RAIL_BIT_LOWER|RAIL_BIT_LEFT|RAIL_BIT_RIGHT,

   169

   170

	RAIL_BIT_UPPER,

   171

	RAIL_BIT_DIAG1 | RAIL_BIT_UPPER | RAIL_BIT_LEFT,

   172

	RAIL_BIT_DIAG1|RAIL_BIT_DIAG2|RAIL_BIT_UPPER|RAIL_BIT_LOWER|RAIL_BIT_LEFT|RAIL_BIT_RIGHT,

   173

	RAIL_BIT_DIAG1|RAIL_BIT_DIAG2|RAIL_BIT_UPPER|RAIL_BIT_LOWER|RAIL_BIT_LEFT|RAIL_BIT_RIGHT,

   174

   175

	RAIL_BIT_DIAG2 | RAIL_BIT_UPPER | RAIL_BIT_RIGHT,

   176

	RAIL_BIT_DIAG1|RAIL_BIT_DIAG2|RAIL_BIT_UPPER|RAIL_BIT_LOWER|RAIL_BIT_LEFT|RAIL_BIT_RIGHT,

   177

	RAIL_BIT_DIAG1|RAIL_BIT_DIAG2|RAIL_BIT_UPPER|RAIL_BIT_LOWER|RAIL_BIT_LEFT|RAIL_BIT_RIGHT,

   178

},

   179

   180

// allowed rail on coast tile

   181

{

   182

	0,

   183

	RAIL_BIT_LEFT,

   184

	RAIL_BIT_LOWER,

   185

	RAIL_BIT_DIAG2|RAIL_BIT_LEFT|RAIL_BIT_LOWER,

   186

   187

	RAIL_BIT_RIGHT,

   188

	RAIL_BIT_DIAG1|RAIL_BIT_DIAG2|RAIL_BIT_UPPER|RAIL_BIT_LOWER|RAIL_BIT_LEFT|RAIL_BIT_RIGHT,

   189

	RAIL_BIT_DIAG1|RAIL_BIT_RIGHT|RAIL_BIT_LOWER,

   190

	RAIL_BIT_DIAG1|RAIL_BIT_DIAG2|RAIL_BIT_UPPER|RAIL_BIT_LOWER|RAIL_BIT_LEFT|RAIL_BIT_RIGHT,

   191

   192

	RAIL_BIT_UPPER,

   193

	RAIL_BIT_DIAG1|RAIL_BIT_LEFT|RAIL_BIT_UPPER,

   194

	RAIL_BIT_DIAG1|RAIL_BIT_DIAG2|RAIL_BIT_UPPER|RAIL_BIT_LOWER|RAIL_BIT_LEFT|RAIL_BIT_RIGHT,

   195

	RAIL_BIT_DIAG1|RAIL_BIT_DIAG2|RAIL_BIT_UPPER|RAIL_BIT_LOWER|RAIL_BIT_LEFT|RAIL_BIT_RIGHT,

   196

   197

	RAIL_BIT_DIAG2|RAIL_BIT_RIGHT|RAIL_BIT_UPPER,

   198

	RAIL_BIT_DIAG1|RAIL_BIT_DIAG2|RAIL_BIT_UPPER|RAIL_BIT_LOWER|RAIL_BIT_LEFT|RAIL_BIT_RIGHT,

   199

	RAIL_BIT_DIAG1|RAIL_BIT_DIAG2|RAIL_BIT_UPPER|RAIL_BIT_LOWER|RAIL_BIT_LEFT|RAIL_BIT_RIGHT,

   200

	},

   201

   202

	// valid railway crossings on slopes

   203

	{

   204

		1, 0, 0, // 0, 1, 2

   205

		0, 0, 1, // 3, 4, 5

   206

		0, 1, 0, // 6, 7, 8

   207

		0, 1, 1, // 9, 10, 11

   208

		0, 1, 1, // 12, 13, 14

   209

	}

   210

};

   211

   212

uint GetRailFoundation(uint tileh, uint bits)

   213

{

   214

	int i;

   215

   216

	if ((~_valid_tileh_slopes[0][tileh] & bits) == 0)

   217

		return 0;

   218

   219

	if ((~_valid_tileh_slopes[1][tileh] & bits) == 0)

   220

		return tileh;

   221

   222

	if ( ((i=0, tileh == 1) || (i+=2, tileh == 2) || (i+=2, tileh == 4) || (i+=2, tileh == 8)) && (bits == RAIL_BIT_DIAG1 || (i++, bits == RAIL_BIT_DIAG2)))

   223

		return i + 15;

   224

   225

	return 0;

   226

}

   227

   228

//

   229

static uint32 CheckRailSlope(int tileh, uint rail_bits, uint existing, uint tile)

   230

{

   231

	// never allow building on top of steep tiles

   232

	if (!(tileh & 0x10)) {

   233

		rail_bits |= existing;

   234

   235

		// don't allow building on the lower side of a coast

   236

		if (IS_TILETYPE(tile, MP_WATER) && ~_valid_tileh_slopes[2][tileh] & rail_bits) {

   237

			return_cmd_error(STR_3807_CAN_T_BUILD_ON_WATER);

   238

		}

   239

   240

		// no special foundation

   241

		if ((~_valid_tileh_slopes[0][tileh] & rail_bits) == 0)

   242

			return 0;

   243

   244

		if (((~_valid_tileh_slopes[1][tileh] & rail_bits) == 0) || // whole tile is leveled up

   245

			((rail_bits == RAIL_BIT_DIAG1 || rail_bits == RAIL_BIT_DIAG2) && (tileh == 1 || tileh == 2 || tileh == 4 || tileh == 8))) { // partly up

   246

			return existing ? 0 : _price.terraform;

   247

		}

   248

	}

   249

	return_cmd_error(STR_1000_LAND_SLOPED_IN_WRONG_DIRECTION);

   250

}

   251

   252

/* Build a single track.

   253

 * p1 - railroad type normal/maglev

   254

 * p2 - tile direction

   255

 */

   256

   257

int32 CmdBuildSingleRail(int x, int y, uint32 flags, uint32 p1, uint32 p2)

   258

{

   259

	TileInfo ti;

   260

	int32 ret, cost = 0;

   261

	byte rail_bit = 1 << p2;

   262

	byte rail_type = (byte)(p1 & 0xF);

   263

	uint tile;

   264

	byte existing = 0;

   265

	bool need_clear = false;

   266

   267

	SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);

   268

   269

	_error_message = STR_1007_ALREADY_BUILT;

   270

   271

	FindLandscapeHeight(&ti, x, y);

   272

	tile = ti.tile;

   273

   274

	// allow building rail under bridge

   275

	if (ti.type != MP_TUNNELBRIDGE && !EnsureNoVehicle(tile))

   276

		return CMD_ERROR;

   277

   278

	if (ti.type == MP_TUNNELBRIDGE) {

   279

/* BUILD ON BRIDGE CODE */

   280

		if (!EnsureNoVehicleZ(tile, GET_TILEHEIGHT(tile)))

   281

			return CMD_ERROR;

   282

   283

		if ((ti.map5 & 0xF8) == 0xC0) {

   284

			if (ti.tileh & 0x10 || rail_bit != (byte)((ti.map5 & 1) ? 1 : 2)) goto need_clear;

   285

   286

			if (!(flags & DC_EXEC))

   287

				return _price.build_rail;

   288

   289

			_map5[tile] = (ti.map5 & 0xC7) | 0x20;

   290

			goto set_ownership;

   291

		} else if ((ti.map5 & 0xF8) == 0xE0) {

   292

			if ((_map3_lo[tile] & 0xF) != (int)p1) goto need_clear;

   293

			if (rail_bit != (byte)((ti.map5 & 1) ? 1 : 2)) goto need_clear;

   294

			return CMD_ERROR;

   295

		} else

   296

			goto need_clear;

   297

	} else if (ti.type == MP_STREET) {

   298

		byte m5;

   299

/* BUILD ON STREET CODE */

   300

		if (ti.tileh & 0x10) // very steep tile

   301

				return_cmd_error(STR_1000_LAND_SLOPED_IN_WRONG_DIRECTION);

   302

   303

		if (!_valid_tileh_slopes[3][ti.tileh]) // prevent certain slopes

   304

				return_cmd_error(STR_1000_LAND_SLOPED_IN_WRONG_DIRECTION);

   305

   306

		if (!(ti.map5 & 0xF0)) {

   307

			if ((ti.map5 & 0x0F) == 0xA) {

   308

				if (rail_bit != 2) goto need_clear;

   309

				m5 = 0x10;

   310

			} else if ((ti.map5 & 0x0F) == 0x5) {

   311

				if (rail_bit != 1) goto need_clear;

   312

				m5 = 0x18;

   313

			} else

   314

				goto need_clear;

   315

   316

			if (!(flags & DC_EXEC))

   317

				return _price.build_rail;

   318

   319

			ModifyTile(tile,

   320

				MP_SETTYPE(MP_STREET) |

   321

				MP_MAP3LO | MP_MAP3HI | MP_MAPOWNER_CURRENT | MP_MAP5,

   322

				_map_owner[tile], /* map3_lo */

   323

				p1, /* map3_hi */

   324

				m5  /* map5 */

   325

			);

   326

			goto fix_signals;

   327

		} else if (!(ti.map5 & 0xE0)) {

   328

			if (rail_bit != (byte)((ti.map5 & 8) ? 1 : 2)) goto need_clear;

   329

			return CMD_ERROR;

   330

		} else

   331

			goto need_clear;

   332

	} else if (ti.type == MP_RAILWAY) {

   333

   334

/* BUILD ON RAILWAY CODE */

   335

		if (_map_owner[tile] != _current_player || (byte)(_map3_lo[tile]&0xF) != rail_type)

   336

			goto need_clear;

   337

		if (!CheckTrackCombination(ti.map5, rail_bit, (byte)flags))

   338

			return CMD_ERROR;

   339

   340

		existing = ti.map5 & 0x3F;

   341

	} else {

   342

   343

/* DEFAULT BUILD ON CODE */

   344

need_clear:;

   345

		/* isnot_railway */

   346

		if (!(flags & DC_EXEC)) {

   347

			ret = DoCommandByTile(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);

   348

			if (ret == CMD_ERROR) return CMD_ERROR;

   349

			cost += ret;

   350

		}

   351

		need_clear = true;

   352

	}

   353

   354

	ret = CheckRailSlope(ti.tileh, rail_bit, existing, tile);

   355

	if (ret & 0x80000000)

   356

		return ret;

   357

	cost += ret;

   358

   359

	// the AI is not allowed to used foundationed tiles.

   360

	if (ret && (!_patches.build_on_slopes || (!_patches.ainew_active && _is_ai_player)))

   361

		return_cmd_error(STR_1000_LAND_SLOPED_IN_WRONG_DIRECTION);

   362

   363

	if (flags & DC_EXEC && need_clear) {

   364

		ret = DoCommandByTile(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);

   365

		if (ret == CMD_ERROR) return CMD_ERROR;

   366

		cost += ret;

   367

	}

   368

   369

	if (flags & DC_EXEC) {

   370

		_map_type_and_height[tile] &= 0xF;

   371

		_map_type_and_height[tile] |= MP_RAILWAY << 4;

   372

		_map5[tile] |= rail_bit;

   373

		_map2[tile] &= ~RAIL_MAP2LO_GROUND_MASK;

   374

   375

		// In case it's a tile without signals, clear the signal bits. Why?

   376

		if ((_map5[tile] & RAIL_TYPE_MASK) != RAIL_TYPE_SIGNALS)

   377

			_map2[tile] &= ~0xF0;

   378

   379

set_ownership:

   380

		_map_owner[tile] = _current_player;

   381

   382

		_map3_lo[tile] &= ~0xF;

   383

		_map3_lo[tile] |= rail_type;

   384

   385

		MarkTileDirtyByTile(tile);

   386

   387

fix_signals:

   388

		SetSignalsOnBothDir(tile, (byte)p2);

   389

	}

   390

   391

	return cost + _price.build_rail;

   392

}

   393

   394

static const byte _signals_table[] = {

   395

	0x40, 0x40, 0x40, 0x10, 0x80, 0x20, 0, 0, // direction 1

   396

	0x80, 0x80, 0x80, 0x20, 0x40, 0x10, 0, 0  // direction 2

   397

};

   398

   399

static const byte _signals_table_other[] = {

   400

	0x80, 0x80, 0x80, 0x20, 0x40, 0x10, 0, 0, // direction 1

   401

	0x40, 0x40, 0x40, 0x10, 0x80, 0x20, 0, 0  // direction 2

   402

};

   403

   404

static const byte _signals_table_both[] = {

   405

	0xC0, 0xC0, 0xC0, 0x30, 0xC0, 0x30, 0, 0,	// both directions combined

   406

	0xC0, 0xC0, 0xC0, 0x30, 0xC0, 0x30, 0, 0

   407

};

   408

   409

   410

/* Remove a single track.

   411

 * p1 - unused

   412

 * p2 - tile direction

   413

 */

   414

   415

int32 CmdRemoveSingleRail(int x, int y, uint32 flags, uint32 p1, uint32 p2)

   416

{

   417

	TileInfo ti;

   418

	byte rail_bit = 1 << p2;

   419

	byte m5;

   420

	uint tile;

   421

   422

	SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);

   423

   424

	FindLandscapeHeight(&ti, x, y);

   425

   426

	tile = ti.tile;

   427

   428

	if (!((1<<ti.type) & ((1<<MP_TUNNELBRIDGE)|(1<<MP_STREET)|(1<<MP_RAILWAY))))

   429

		return CMD_ERROR;

   430

   431

	if (_current_player != OWNER_WATER && !CheckTileOwnership(tile))

   432

		return CMD_ERROR;

   433

   434

	// allow building rail under bridge

   435

	if (ti.type != MP_TUNNELBRIDGE && !EnsureNoVehicle(tile))

   436

		return CMD_ERROR;

   437

   438

	if (ti.type == MP_TUNNELBRIDGE) {

   439

		if (!EnsureNoVehicleZ(tile, GET_TILEHEIGHT(tile)))

   440

			return CMD_ERROR;

   441

   442

		if ((ti.map5 & 0xF8) != 0xE0)

   443

			return CMD_ERROR;

   444

   445

		if ( ((ti.map5 & 1) ? 1 : 2) != rail_bit )

   446

			return CMD_ERROR;

   447

   448

		if (!(flags & DC_EXEC))

   449

			return _price.remove_rail;

   450

   451

		_map_owner[tile] = OWNER_NONE;

   452

		_map5[tile] = ti.map5 & 0xC7;

   453

	} else if (ti.type == MP_STREET) {

   454

		if (!(ti.map5 & 0xF0))

   455

			return CMD_ERROR;

   456

   457

		if (ti.map5 & 0xE0)

   458

			return CMD_ERROR;

   459

   460

		if (ti.map5 & 8) {

   461

			m5 = 5;

   462

			if (rail_bit != 1)

   463

				return CMD_ERROR;

   464

		} else {

   465

			m5 = 10;

   466

			if (rail_bit != 2)

   467

				return CMD_ERROR;

   468

		}

   469

   470

		if (!(flags & DC_EXEC))

   471

			return _price.remove_rail;

   472

   473

		_map5[tile] = m5;

   474

		_map_owner[tile] = _map3_lo[tile];

   475

		_map2[tile] = 0;

   476

	} else {

   477

		assert(ti.type == MP_RAILWAY);

   478

   479

		if (ti.map5 & RAIL_TYPE_SPECIAL)

   480

			return CMD_ERROR;

   481

   482

		if (!(ti.map5 & rail_bit))

   483

			return CMD_ERROR;

   484

   485

		// don't allow remove if there are signals on the track

   486

		if (ti.map5 & RAIL_TYPE_SIGNALS) {

   487

			if (_map3_lo[tile] & _signals_table_both[p2])

   488

				return CMD_ERROR;

   489

		}

   490

   491

		if (!(flags & DC_EXEC))

   492

			return _price.remove_rail;

   493

   494

		if ( (_map5[tile] ^= rail_bit) == 0) {

   495

			DoClearSquare(tile);

   496

			goto skip_mark_dirty;

   497

		}

   498

	}

   499

   500

	/* mark_dirty */

   501

	MarkTileDirtyByTile(tile);

   502

   503

skip_mark_dirty:;

   504

   505

	SetSignalsOnBothDir(tile, (byte)p2);

   506

   507

	return _price.remove_rail;

   508

}

   509

   510

static const struct {

   511

	int8 xinc[16];

   512

	int8 yinc[16];

   513

	byte initial[16];

   514

} _railbit = {{

   515

//  0   1   2    3   4   5

   516

	 16,  0,-16,   0, 16,  0,    0,  0,

   517

	-16,  0,  0,  16,  0,-16,    0,  0,

   518

},{

   519

	0,   16,  0,  16,  0, 16,    0,  0,

   520

	0,  -16, -16,  0,-16,  0,    0,  0,

   521

},{