1

#include "stdafx.h"

     2

#include "ttd.h"

     3

#include "table/sprites.h"

     4

#include "table/strings.h"

     5

#include "map.h"

     6

#include "tile.h"

     7

#include "vehicle.h"

     8

#include "viewport.h"

     9

#include "command.h"

    10

#include "town.h"

    11

#include "news.h"

    12

#include "sound.h"

    13

#include "depot.h"

    14

#include "vehicle_gui.h"

    15

    16

static void FloodVehicle(Vehicle *v);

    17

    18

static bool IsClearWaterTile(uint tile)

    19

{

    20

	TileInfo ti;

    21

	FindLandscapeHeightByTile(&ti, tile);

    22

	return (ti.type == MP_WATER && ti.tileh == 0 && ti.map5 == 0);

    23

}

    24

    25

/** Build a ship depot.

    26

 * @param x,y tile coordinates where ship depot is built

    27

 * @param p1 depot direction (0 through 3), where 0 is NW, 1 is NE, etc.

    28

 * @param p2 unused

    29

 */

    30

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

    31

{

    32

	TileIndex tile, tile2;

    33

    34

	int32 cost, ret;

    35

	Depot *depot;

    36

    37

	SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);

    38

    39

	if (p1 > 3) return CMD_ERROR;

    40

    41

	tile = TILE_FROM_XY(x,y);

    42

	if (!EnsureNoVehicle(tile)) return CMD_ERROR;

    43

    44

	tile2 = tile + (p1 ? TILE_XY(0,1) : TILE_XY(1,0));

    45

	if (!EnsureNoVehicle(tile2)) return CMD_ERROR;

    46

    47

	if (!IsClearWaterTile(tile) || !IsClearWaterTile(tile2))

    48

		return_cmd_error(STR_3801_MUST_BE_BUILT_ON_WATER);

    49

    50

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

    51

	if (CmdFailed(ret)) return CMD_ERROR;

    52

	ret = DoCommandByTile(tile2, 0, 0, flags, CMD_LANDSCAPE_CLEAR);

    53

	if (CmdFailed(ret)) return CMD_ERROR;

    54

    55

	// pretend that we're not making land from the water even though we actually are.

    56

	cost = 0;

    57

    58

	depot = AllocateDepot();

    59

	if (depot == NULL) return CMD_ERROR;

    60

    61

	if (flags & DC_EXEC) {

    62

		depot->xy = tile;

    63

		_last_built_ship_depot_tile = tile;

    64

		depot->town_index = ClosestTownFromTile(tile, (uint)-1)->index;

    65

    66

		ModifyTile(tile,

    67

			MP_SETTYPE(MP_WATER) | MP_MAPOWNER_CURRENT | MP_MAP5 | MP_MAP2_CLEAR | MP_MAP3LO_CLEAR | MP_MAP3HI_CLEAR,

    68

			(0x80 + p1*2)

    69

		);

    70

    71

		ModifyTile(tile2,

    72

			MP_SETTYPE(MP_WATER) | MP_MAPOWNER_CURRENT | MP_MAP5 | MP_MAP2_CLEAR | MP_MAP3LO_CLEAR | MP_MAP3HI_CLEAR,

    73

			(0x81 + p1*2)

    74

		);

    75

	}

    76

    77

	return cost + _price.build_ship_depot;

    78

}

    79

    80

static int32 RemoveShipDepot(uint tile, uint32 flags)

    81

{

    82

	uint tile2;

    83

    84

	if (!CheckTileOwnership(tile))

    85

		return CMD_ERROR;

    86

    87

	if (!EnsureNoVehicle(tile))

    88

		return CMD_ERROR;

    89

    90

	tile2 = tile + ((_map5[tile] & 2) ? TILE_XY(0,1) : TILE_XY(1,0));

    91

    92

	if (!EnsureNoVehicle(tile2))

    93

		return CMD_ERROR;

    94

    95

	if (flags & DC_EXEC) {

    96

		/* Kill the depot */

    97

		DoDeleteDepot(tile);

    98

    99

		/* Make the tiles water */

   100

		ModifyTile(tile, MP_SETTYPE(MP_WATER) | MP_MAPOWNER | MP_MAP5 | MP_MAP2_CLEAR | MP_MAP3LO_CLEAR | MP_MAP3HI_CLEAR, OWNER_WATER, 0);

   101

		ModifyTile(tile2, MP_SETTYPE(MP_WATER) | MP_MAPOWNER | MP_MAP5 | MP_MAP2_CLEAR | MP_MAP3LO_CLEAR | MP_MAP3HI_CLEAR, OWNER_WATER, 0);

   102

	}

   103

   104

	return _price.remove_ship_depot;

   105

}

   106

   107

// build a shiplift

   108

static int32 DoBuildShiplift(uint tile, int dir, uint32 flags)

   109

{

   110

	int32 ret;

   111

	int delta;

   112

   113

	// middle tile

   114

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

   115

	if (ret == CMD_ERROR) return CMD_ERROR;

   116

   117

	delta = TileOffsByDir(dir);

   118

	// lower tile

   119

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

   120

	if (ret == CMD_ERROR) return CMD_ERROR;

   121

	if (GetTileSlope(tile - delta, NULL)) return_cmd_error(STR_1000_LAND_SLOPED_IN_WRONG_DIRECTION);

   122

   123

	// upper tile

   124

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

   125

	if (ret == CMD_ERROR) return CMD_ERROR;

   126

	if (GetTileSlope(tile + delta, NULL)) return_cmd_error(STR_1000_LAND_SLOPED_IN_WRONG_DIRECTION);

   127

   128

	if (flags & DC_EXEC) {

   129

		ModifyTile(tile, MP_SETTYPE(MP_WATER) | MP_MAPOWNER | MP_MAP5 | MP_MAP2_CLEAR | MP_MAP3LO_CLEAR | MP_MAP3HI_CLEAR, OWNER_WATER, 0x10 + dir);

   130

		ModifyTile(tile - delta, MP_SETTYPE(MP_WATER) | MP_MAPOWNER | MP_MAP5 | MP_MAP2_CLEAR | MP_MAP3LO_CLEAR | MP_MAP3HI_CLEAR, OWNER_WATER, 0x14 + dir);

   131

		ModifyTile(tile + delta, MP_SETTYPE(MP_WATER) | MP_MAPOWNER | MP_MAP5 | MP_MAP2_CLEAR | MP_MAP3LO_CLEAR | MP_MAP3HI_CLEAR, OWNER_WATER, 0x18 + dir);

   132

	}

   133

   134

	return _price.clear_water * 22 >> 3;

   135

}

   136

   137

static int32 RemoveShiplift(uint tile, uint32 flags)

   138

{

   139

	TileIndexDiff delta = TileOffsByDir(_map5[tile] & 3);

   140

   141

	// make sure no vehicle is on the tile.

   142

	if (!EnsureNoVehicle(tile) || !EnsureNoVehicle(tile + delta) || !EnsureNoVehicle(tile - delta))

   143

		return CMD_ERROR;

   144

   145

	if (flags & DC_EXEC) {

   146

		DoClearSquare(tile);

   147

		DoClearSquare(tile + delta);

   148

		DoClearSquare(tile - delta);

   149

	}

   150

   151

	return _price.clear_water * 2;

   152

}

   153

   154

static void MarkTilesAroundDirty(uint tile)

   155

{

   156

	MarkTileDirtyByTile(TILE_ADDXY(tile, 0, 1));

   157

	MarkTileDirtyByTile(TILE_ADDXY(tile, 0, -1));

   158

	MarkTileDirtyByTile(TILE_ADDXY(tile, 1, 0));

   159

	MarkTileDirtyByTile(TILE_ADDXY(tile, -1, 0));

   160

}

   161

   162

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

   163

{

   164

	uint tile = TILE_FROM_XY(x,y);

   165

	int32 ret;

   166

	uint th;

   167

   168

	SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);

   169

	th = GetTileSlope(tile, NULL);

   170

   171

	if (th==3 || th==6 || th==9 || th==12) {

   172

		static const byte _shiplift_dirs[16] = {0,0,0,2,0,0,1,0,0,3,0,0,0};

   173

		ret = DoBuildShiplift(tile, _shiplift_dirs[th], flags);

   174

		return ret;

   175

		}

   176

	else

   177

		return_cmd_error(STR_1000_LAND_SLOPED_IN_WRONG_DIRECTION);

   178

}

   179

   180

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

   181

{

   182

	int32 ret, cost;

   183

	int size_x, size_y;

   184

	int sx = TileX((TileIndex)p1);

   185

	int sy = TileY((TileIndex)p1);

   186

	x >>= 4; y >>= 4;

   187

   188

	SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);

   189

   190

	if (x < sx) intswap(x, sx);

   191

	if (y < sy) intswap(y, sy);

   192

	size_x = (x - sx) + 1;

   193

	size_y = (y - sy) + 1;

   194

   195

	cost = 0;

   196

	BEGIN_TILE_LOOP(tile, size_x, size_y, TILE_XY(sx, sy)) {

   197

		ret = 0;

   198

		if (GetTileSlope(tile, NULL) != 0)

   199

			return_cmd_error(STR_0007_FLAT_LAND_REQUIRED);

   200

   201

			// can't make water of water!

   202

			if (IsTileType(tile, MP_WATER)) {

   203

				_error_message = STR_1007_ALREADY_BUILT;

   204

			} else {

   205

				/* is middle piece of a bridge? */

   206

				if (IsTileType(tile, MP_TUNNELBRIDGE) && _map5[tile] & 0x40) { /* build under bridge */

   207

					if (_map5[tile] & 0x20) { // transport route under bridge

   208

						_error_message = STR_5800_OBJECT_IN_THE_WAY;

   209

						ret = CMD_ERROR;

   210

					}

   211

					else if (_map5[tile] & 0x18) { // already water under bridge

   212

						_error_message = STR_1007_ALREADY_BUILT;

   213

						ret = CMD_ERROR;

   214

					}

   215

				/* no bridge? then try to clear it. */

   216

				} else

   217

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

   218

   219

				if (ret == CMD_ERROR) return ret;

   220

				cost += ret;

   221

   222

				/* execute modifications */

   223

				if (flags & DC_EXEC) {

   224

					if (IsTileType(tile, MP_TUNNELBRIDGE)) {

   225

						// change owner to OWNER_WATER and set land under bridge bit to water

   226

						ModifyTile(tile, MP_MAP5 | MP_MAPOWNER, OWNER_WATER, _map5[tile] | 0x08);

   227

					} else {

   228

						ModifyTile(tile, MP_SETTYPE(MP_WATER) | MP_MAPOWNER | MP_MAP5 | MP_MAP2_CLEAR | MP_MAP3LO_CLEAR | MP_MAP3HI_CLEAR, OWNER_WATER, 0);

   229

					}

   230

					// mark the tiles around dirty too

   231

					MarkTilesAroundDirty(tile);

   232

				}

   233

   234

				cost += _price.clear_water;

   235

			}

   236

	} END_TILE_LOOP(tile, size_x, size_y, 0);

   237

   238

	return (cost == 0) ? CMD_ERROR : cost;

   239

}

   240

   241

static int32 ClearTile_Water(uint tile, byte flags) {

   242

	byte m5 = _map5[tile];

   243

	uint slope;

   244

   245

	if (m5 <= 1) { // water and shore

   246

		// Allow building on water? It's ok to build on shores.

   247

		if (flags & DC_NO_WATER && m5 != 1)

   248

			return_cmd_error(STR_3807_CAN_T_BUILD_ON_WATER);

   249

   250

		// Make sure no vehicle is on the tile

   251

		if (!EnsureNoVehicle(tile))

   252

			return CMD_ERROR;

   253

   254

		// Make sure it's not an edge tile.

   255

		if (!(IS_INT_INSIDE(TileX(tile), 1, MapMaxX() - 1) &&

   256

				IS_INT_INSIDE(TileY(tile), 1, MapMaxY() - 1)))

   257

			return_cmd_error(STR_0002_TOO_CLOSE_TO_EDGE_OF_MAP);

   258

   259

		if (m5 == 0) {

   260

			if (flags & DC_EXEC)

   261

				DoClearSquare(tile);

   262

			return _price.clear_water;

   263

		} else if (m5 == 1) {

   264

			slope = GetTileSlope(tile,NULL);

   265

			if (slope == 8 || slope == 4 || slope == 2 || slope == 1) {

   266

				if (flags & DC_EXEC)

   267

					DoClearSquare(tile);

   268

				return _price.clear_water;

   269

			}

   270

			if (flags & DC_EXEC)

   271

				DoClearSquare(tile);

   272

			return _price.purchase_land;

   273

		} else

   274

			return CMD_ERROR;

   275

	} else if ((m5 & 0x10) == 0x10) {

   276

		// shiplift

   277

   278

		static const TileIndexDiffC _shiplift_tomiddle_offs[] = {

   279

			{ 0,  0}, {0,  0}, { 0, 0}, {0,  0}, // middle

   280

			{-1,  0}, {0,  1}, { 1, 0}, {0, -1}, // lower

   281

			{ 1,  0}, {0, -1}, {-1, 0}, {0,  1}, // upper

   282

		};

   283

   284

		if (flags & DC_AUTO) return_cmd_error(STR_2004_BUILDING_MUST_BE_DEMOLISHED);

   285

		// don't allow water to delete it.

   286

		if (_current_player == OWNER_WATER) return CMD_ERROR;

   287

		// move to the middle tile..

   288

		return RemoveShiplift(tile + ToTileIndexDiff(_shiplift_tomiddle_offs[m5 & 0xF]), flags);

   289

	} else {

   290

		// ship depot

   291

		if (flags & DC_AUTO)

   292

			return_cmd_error(STR_2004_BUILDING_MUST_BE_DEMOLISHED);

   293

   294

		if (m5 == 0x80 || m5 == 0x82) {}

   295

		else if (m5 == 0x81) { tile -= TILE_XY(1,0); }

   296

		else if (m5 == 0x83) { tile -= TILE_XY(0,1); }

   297

		else

   298

			return CMD_ERROR;

   299

   300

		return RemoveShipDepot(tile,flags);

   301

	}

   302

}

   303

   304

// return true if a tile is a water tile.

   305

static bool IsWateredTile(TileIndex tile)

   306

{

   307

	byte m5 = _map5[tile];

   308

   309

	switch (GetTileType(tile)) {

   310

		case MP_WATER:

   311

			// true, if not coast/riverbank

   312

			return m5 != 1;

   313

   314

		case MP_STATION:

   315

			// returns true if it is a dock-station

   316

			// m5 inside values is m5 < 75 all stations, 83 <= m5 <= 114 new airports

   317

			return !(m5 < 75 || (m5 >= 83 && m5 <= 114));

   318

   319

		case MP_TUNNELBRIDGE:

   320

			// true, if tile is middle part of bridge with water underneath

   321

			return (m5 & 0xF8) == 0xC8;

   322

   323

		default:

   324

			return false;

   325

	}

   326

}

   327

   328

// draw a canal styled water tile with dikes around

   329

void DrawCanalWater(uint tile)

   330

{

   331

	uint wa;

   332

   333

	// determine the edges around with water.

   334

	wa = IsWateredTile(TILE_ADDXY(tile, -1, 0)) << 0;

   335

	wa += IsWateredTile(TILE_ADDXY(tile, 0, 1)) << 1;

   336

	wa += IsWateredTile(TILE_ADDXY(tile, 1, 0)) << 2;

   337

	wa += IsWateredTile(TILE_ADDXY(tile, 0, -1)) << 3;

   338

   339

	if (!(wa & 1)) DrawGroundSprite(SPR_CANALS_BASE + 57);

   340

	if (!(wa & 2)) DrawGroundSprite(SPR_CANALS_BASE + 58);

   341

	if (!(wa & 4)) DrawGroundSprite(SPR_CANALS_BASE + 59);

   342

	if (!(wa & 8)) DrawGroundSprite(SPR_CANALS_BASE + 60);

   343

   344

	// right corner

   345

	if ((wa & 3) == 0) DrawGroundSprite(SPR_CANALS_BASE + 57 + 4);

   346

	else if ((wa & 3) == 3 && !IsWateredTile(TILE_ADDXY(tile, -1, 1))) DrawGroundSprite(SPR_CANALS_BASE + 57 + 8);

   347

   348

	// bottom corner

   349

	if ((wa & 6) == 0) DrawGroundSprite(SPR_CANALS_BASE + 57 + 5);

   350

	else if ((wa & 6) == 6 && !IsWateredTile(TILE_ADDXY(tile, 1, 1))) DrawGroundSprite(SPR_CANALS_BASE + 57 + 9);

   351

   352

	// left corner

   353

	if ((wa & 12) == 0) DrawGroundSprite(SPR_CANALS_BASE + 57 + 6);

   354

	else if ((wa & 12) == 12 && !IsWateredTile(TILE_ADDXY(tile, 1, -1))) DrawGroundSprite(SPR_CANALS_BASE + 57 + 10);

   355

   356

	// upper corner

   357

	if ((wa & 9) == 0) DrawGroundSprite(SPR_CANALS_BASE + 57 + 7);

   358

	else if ((wa & 9) == 9 && !IsWateredTile(TILE_ADDXY(tile, -1, -1))) DrawGroundSprite(SPR_CANALS_BASE + 57 + 11);

   359

}

   360

   361

typedef struct LocksDrawTileStruct {

   362

	int8 delta_x, delta_y, delta_z;

   363

	byte width, height, depth;

   364

	SpriteID image;

   365

} LocksDrawTileStruct;

   366

   367

#include "table/water_land.h"

   368

   369

static void DrawWaterStuff(TileInfo *ti, const WaterDrawTileStruct *wdts,

   370

	uint32 palette, uint base

   371

)

   372

{

   373

	uint32 image;

   374

   375

	DrawGroundSprite(wdts++->image);

   376

   377

	for (; wdts->delta_x != 0x80; wdts++) {

   378

		image =	wdts->image + base;

   379

		if (_display_opt & DO_TRANS_BUILDINGS) {

   380

			image = (image & 0x3FFF) | 0x03224000;

   381

		} else {

   382

			image |= palette;

   383

		}

   384

		AddSortableSpriteToDraw(image, ti->x + wdts->delta_x, ti->y + wdts->delta_y, wdts->width, wdts->height, wdts->unk, ti->z + wdts->delta_z);

   385

	}

   386

}

   387

   388

static void DrawTile_Water(TileInfo *ti)

   389

{

   390

	// draw water tile

   391

	if (ti->map5 == 0) {

   392

		DrawGroundSprite(0xFDD);

   393

		if (ti->z != 0) DrawCanalWater(ti->tile);

   394

		return;

   395

	}

   396

   397

	// draw shore

   398

	if (ti->map5 == 1) {

   399

		assert(ti->tileh < 16);

   400

		DrawGroundSprite(_water_shore_sprites[ti->tileh]);

   401

		return;

   402

	}

   403

   404

	// draw shiplift

   405

	if ((ti->map5 & 0xF0) == 0x10) {

   406

		const WaterDrawTileStruct *t = _shiplift_display_seq[ti->map5 & 0xF];

   407

		DrawWaterStuff(ti, t, 0, ti->z > t[3].delta_y ? 24 : 0);

   408

		return;

   409

	}

   410

   411

	DrawWaterStuff(ti, _shipdepot_display_seq[ti->map5 & 0x7F], PLAYER_SPRITE_COLOR(_map_owner[ti->tile]), 0);

   412

}

   413

   414

void DrawShipDepotSprite(int x, int y, int image)

   415

{

   416

	const WaterDrawTileStruct *wdts = _shipdepot_display_seq[image];

   417

   418

	DrawSprite(wdts++->image, x, y);

   419

   420

	for (; wdts->delta_x != 0x80; wdts++) {

   421

		Point pt = RemapCoords(wdts->delta_x, wdts->delta_y, wdts->delta_z);

   422

		DrawSprite(wdts->image + PLAYER_SPRITE_COLOR(_local_player), x + pt.x, y + pt.y);

   423

	}

   424

}

   425

   426

   427

static uint GetSlopeZ_Water(TileInfo *ti)

   428

{

   429

	return GetPartialZ(ti->x&0xF, ti->y&0xF, ti->tileh) + ti->z;

   430

}

   431

   432

static uint GetSlopeTileh_Water(TileInfo *ti)

   433

{

   434

	return ti->tileh;

   435

}

   436

   437

static void GetAcceptedCargo_Water(uint tile, AcceptedCargo ac)

   438

{

   439

	/* not used */

   440

}

   441

   442

static void GetTileDesc_Water(uint tile, TileDesc *td)

   443

{

   444

	if (_map5[tile] == 0 && TilePixelHeight(tile) == 0)

   445

		td->str = STR_3804_WATER;

   446

	else if (_map5[tile] == 0)

   447

		td->str = STR_LANDINFO_CANAL;

   448

	else if (_map5[tile] == 1)

   449

		td->str = STR_3805_COAST_OR_RIVERBANK;

   450

	else if ((_map5[tile]&0xF0) == 0x10)

   451

		td->str = STR_LANDINFO_LOCK;

   452

	else

   453

		td->str = STR_3806_SHIP_DEPOT;

   454

   455

	td->owner = _map_owner[tile];

   456

}

   457

   458

static void AnimateTile_Water(uint tile)

   459

{

   460

	/* not used */

   461

}

   462

   463

static void TileLoopWaterHelper(TileIndex tile, const TileIndexDiffC *offs)

   464

{

   465

	TileIndex target = TILE_ADD(tile, ToTileIndexDiff(offs[0]));

   466

   467

	// type of this tile mustn't be water already.

   468

	if (IsTileType(target, MP_WATER))

   469

		return;

   470

   471

	if (TileHeight(TILE_ADD(tile, ToTileIndexDiff(offs[1]))) != 0 ||

   472

			TileHeight(TILE_ADD(tile, ToTileIndexDiff(offs[2]))) != 0)

   473

		return;

   474

   475

	if (TileHeight(TILE_ADD(tile, ToTileIndexDiff(offs[3]))) != 0 ||

   476

			TileHeight(TILE_ADD(tile, ToTileIndexDiff(offs[4]))) != 0) {

   477

		// make coast..

   478

		switch (GetTileType(target)) {

   479

			case MP_RAILWAY: {

   480

				uint slope = GetTileSlope(target, NULL);

   481

				byte tracks = _map5[target] & 0x3F;

   482

				if (!(

   483

						(slope == 1 && tracks == 0x20) ||

   484

						(slope == 2 && tracks == 0x04) ||

   485

						(slope == 4 && tracks == 0x10) ||

   486

						(slope == 8 && tracks == 0x08)))

   487

					break;

   488

			}

   489

			/* FALLTHROUGH */

   490

   491

			case MP_CLEAR:

   492

			case MP_TREES:

   493

				_current_player = OWNER_WATER;

   494

				if (DoCommandByTile(target, 0, 0, DC_EXEC, CMD_LANDSCAPE_CLEAR) != CMD_ERROR) {

   495

					ModifyTile(

   496

						target,

   497

						MP_SETTYPE(MP_WATER) | MP_MAPOWNER | MP_MAP5 | MP_MAP2_CLEAR |

   498

							MP_MAP3LO_CLEAR | MP_MAP3HI_CLEAR,

   499

						OWNER_WATER, 1

   500

					);

   501

				}

   502

				break;

   503

   504

			case MP_TUNNELBRIDGE:

   505

				// Middle part of bridge with clear land below?

   506

				if ((_map5[target] & 0xF8) == 0xC0) {

   507

					_map5[target] |= 0x08;

   508

					MarkTileDirtyByTile(tile);

   509

				}