1

/* $Id$ */

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     3

#include "stdafx.h"

     4

#include "openttd.h"

     5

#include "table/sprites.h"

     6

#include "table/strings.h"

     7

#include "functions.h"

     8

#include "map.h"

     9

#include "tile.h"

    10

#include "vehicle.h"

    11

#include "viewport.h"

    12

#include "command.h"

    13

#include "town.h"

    14

#include "news.h"

    15

#include "sound.h"

    16

#include "depot.h"

    17

#include "vehicle_gui.h"

    18

#include "train.h"

    19

    20

const SpriteID _water_shore_sprites[15] = {

    21

	0,

    22

	SPR_SHORE_TILEH_1,

    23

	SPR_SHORE_TILEH_2,

    24

	SPR_SHORE_TILEH_3,

    25

	SPR_SHORE_TILEH_4,

    26

	0,

    27

	SPR_SHORE_TILEH_6,

    28

	0,

    29

	SPR_SHORE_TILEH_8,

    30

	SPR_SHORE_TILEH_9,

    31

	0,

    32

	0,

    33

	SPR_SHORE_TILEH_12,

    34

	0,

    35

	0

    36

};

    37

    38

    39

static void FloodVehicle(Vehicle *v);

    40

    41

static bool IsClearWaterTile(TileIndex tile)

    42

{

    43

	return

    44

		IsTileType(tile, MP_WATER) &&

    45

		_m[tile].m5 == 0 &&

    46

		GetTileSlope(tile, NULL) == 0;

    47

}

    48

    49

/** Build a ship depot.

    50

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

    51

 * @param p1 depot direction (0 == X or 1 == Y)

    52

 * @param p2 unused

    53

 */

    54

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

    55

{

    56

	TileIndex tile, tile2;

    57

    58

	int32 cost, ret;

    59

	Depot *depot;

    60

    61

	SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);

    62

    63

	if (p1 > 1) return CMD_ERROR;

    64

    65

	tile = TileVirtXY(x, y);

    66

	if (!EnsureNoVehicle(tile)) return CMD_ERROR;

    67

    68

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

    69

	if (!EnsureNoVehicle(tile2)) return CMD_ERROR;

    70

    71

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

    72

		return_cmd_error(STR_3801_MUST_BE_BUILT_ON_WATER);

    73

    74

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

    75

	if (CmdFailed(ret)) return CMD_ERROR;

    76

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

    77

	if (CmdFailed(ret)) return CMD_ERROR;

    78

    79

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

    80

	cost = 0;

    81

    82

	depot = AllocateDepot();

    83

	if (depot == NULL) return CMD_ERROR;

    84

    85

	if (flags & DC_EXEC) {

    86

		depot->xy = tile;

    87

		_last_built_ship_depot_tile = tile;

    88

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

    89

    90

		ModifyTile(tile,

    91

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

    92

			(0x80 + p1*2)

    93

		);

    94

    95

		ModifyTile(tile2,

    96

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

    97

			(0x81 + p1*2)

    98

		);

    99

	}

   100

   101

	return cost + _price.build_ship_depot;

   102

}

   103

   104

static int32 RemoveShipDepot(TileIndex tile, uint32 flags)

   105

{

   106

	TileIndex tile2;

   107

   108

	if (!CheckTileOwnership(tile))

   109

		return CMD_ERROR;

   110

   111

	if (!EnsureNoVehicle(tile))

   112

		return CMD_ERROR;

   113

   114

	tile2 = tile + ((_m[tile].m5 & 2) ? TileDiffXY(0, 1) : TileDiffXY(1, 0));

   115

   116

	if (!EnsureNoVehicle(tile2))

   117

		return CMD_ERROR;

   118

   119

	if (flags & DC_EXEC) {

   120

		/* Kill the depot */

   121

		DoDeleteDepot(tile);

   122

   123

		/* Make the tiles water */

   124

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

   125

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

   126

	}

   127

   128

	return _price.remove_ship_depot;

   129

}

   130

   131

// build a shiplift

   132

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

   133

{

   134

	int32 ret;

   135

	int delta;

   136

   137

	// middle tile

   138

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

   139

	if (CmdFailed(ret)) return CMD_ERROR;

   140

   141

	delta = TileOffsByDir(dir);

   142

	// lower tile

   143

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

   144

	if (CmdFailed(ret)) return CMD_ERROR;

   145

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

   146

   147

	// upper tile

   148

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

   149

	if (CmdFailed(ret)) return CMD_ERROR;

   150

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

   151

   152

	if (flags & DC_EXEC) {

   153

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

   154

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

   155

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

   156

	}

   157

   158

	return _price.clear_water * 22 >> 3;

   159

}

   160

   161

static int32 RemoveShiplift(TileIndex tile, uint32 flags)

   162

{

   163

	TileIndexDiff delta = TileOffsByDir(GB(_m[tile].m5, 0, 2));

   164

   165

	// make sure no vehicle is on the tile.

   166

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

   167

		return CMD_ERROR;

   168

   169

	if (flags & DC_EXEC) {

   170

		DoClearSquare(tile);

   171

		DoClearSquare(tile + delta);

   172

		DoClearSquare(tile - delta);

   173

	}

   174

   175

	return _price.clear_water * 2;

   176

}

   177

   178

static void MarkTilesAroundDirty(TileIndex tile)

   179

{

   180

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

   181

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

   182

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

   183

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

   184

}

   185

   186

/** Builds a lock (ship-lift)

   187

 * @param x,y tile coordinates where to place the lock

   188

 * @param p1 unused

   189

 * @param p2 unused

   190

 */

   191

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

   192

{

   193

	TileIndex tile = TileVirtXY(x, y);

   194

	uint tileh;

   195

   196

	SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);

   197

	tileh = GetTileSlope(tile, NULL);

   198

   199

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

   200

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

   201

		return DoBuildShiplift(tile, _shiplift_dirs[tileh], flags);

   202

	}

   203

   204

	return_cmd_error(STR_1000_LAND_SLOPED_IN_WRONG_DIRECTION);

   205

}

   206

   207

/** Build a piece of canal.

   208

 * @param x,y end tile of stretch-dragging

   209

 * @param p1 start tile of stretch-dragging

   210

 * @param p2 unused

   211

 */

   212

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

   213

{

   214

	int32 ret, cost;

   215

	int size_x, size_y;

   216

	int sx, sy;

   217

   218

	if (p1 > MapSize()) return CMD_ERROR;

   219

   220

	sx = TileX(p1);

   221

	sy = TileY(p1);

   222

	/* x,y are in pixel-coordinates, transform to tile-coordinates

   223

	 * to be able to use the BEGIN_TILE_LOOP() macro */

   224

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

   225

   226

	SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);

   227

   228

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

   229

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

   230

	size_x = (x - sx) + 1;

   231

	size_y = (y - sy) + 1;

   232

   233

	/* Outside the editor you can only drag canals, and not areas */

   234

	if (_game_mode != GM_EDITOR && (sx != x && sy != y)) return CMD_ERROR;

   235

   236

	cost = 0;

   237

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

   238

		ret = 0;

   239

		if (GetTileSlope(tile, NULL) != 0) return_cmd_error(STR_0007_FLAT_LAND_REQUIRED);

   240

   241

			// can't make water of water!

   242

			if (IsTileType(tile, MP_WATER)) {

   243

				_error_message = STR_1007_ALREADY_BUILT;

   244

			} else {

   245

				/* is middle piece of a bridge? */

   246

				if (IsTileType(tile, MP_TUNNELBRIDGE) && _m[tile].m5 & 0x40) { /* build under bridge */

   247

					if (_m[tile].m5 & 0x20) // transport route under bridge

   248

						return_cmd_error(STR_5800_OBJECT_IN_THE_WAY);

   249

   250

					if (_m[tile].m5 & 0x18) // already water under bridge

   251

						return_cmd_error(STR_1007_ALREADY_BUILT);

   252

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

   253

				} else

   254

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

   255

   256

				if (CmdFailed(ret)) return CMD_ERROR;

   257

				cost += ret;

   258

   259

				/* execute modifications */

   260

				if (flags & DC_EXEC) {

   261

					if (IsTileType(tile, MP_TUNNELBRIDGE)) {

   262

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

   263

						ModifyTile(tile, MP_MAP5 | MP_MAPOWNER, OWNER_WATER, _m[tile].m5 | 0x08);

   264

					} else {

   265

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

   266

					}

   267

					// mark the tiles around dirty too

   268

					MarkTilesAroundDirty(tile);

   269

				}

   270

   271

				cost += _price.clear_water;

   272

			}

   273

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

   274

   275

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

   276

}

   277

   278

static int32 ClearTile_Water(TileIndex tile, byte flags)

   279

{

   280

	byte m5 = _m[tile].m5;

   281

	uint slope;

   282

   283

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

   284

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

   285

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

   286

			return_cmd_error(STR_3807_CAN_T_BUILD_ON_WATER);

   287

   288

		// Make sure no vehicle is on the tile

   289

		if (!EnsureNoVehicle(tile))

   290

			return CMD_ERROR;

   291

   292

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

   293

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

   294

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

   295

			return_cmd_error(STR_0002_TOO_CLOSE_TO_EDGE_OF_MAP);

   296

   297

		if (m5 == 0) {

   298

			if (flags & DC_EXEC)

   299

				DoClearSquare(tile);

   300

			return _price.clear_water;

   301

		} else if (m5 == 1) {

   302

			slope = GetTileSlope(tile,NULL);

   303

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

   304

				if (flags & DC_EXEC)

   305

					DoClearSquare(tile);

   306

				return _price.clear_water;

   307

			}

   308

			if (flags & DC_EXEC)

   309

				DoClearSquare(tile);

   310

			return _price.purchase_land;

   311

		} else

   312

			return CMD_ERROR;

   313

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

   314

		// shiplift

   315

   316

		static const TileIndexDiffC _shiplift_tomiddle_offs[] = {

   317

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

   318

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

   319

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

   320

		};

   321

   322

		if (flags & DC_AUTO) return_cmd_error(STR_2004_BUILDING_MUST_BE_DEMOLISHED);

   323

		// don't allow water to delete it.

   324

		if (_current_player == OWNER_WATER) return CMD_ERROR;

   325

		// move to the middle tile..

   326

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

   327

	} else {

   328

		// ship depot

   329

		if (flags & DC_AUTO) return_cmd_error(STR_2004_BUILDING_MUST_BE_DEMOLISHED);

   330

   331

		switch (m5) {

   332

			case 0x80: break;

   333

			case 0x81: tile -= TileDiffXY(1, 0); break;

   334

			case 0x82: break;

   335

			case 0x83: tile -= TileDiffXY(0, 1); break;

   336

			default:   return CMD_ERROR;

   337

		}

   338

   339

		return RemoveShipDepot(tile,flags);

   340

	}

   341

}

   342

   343

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

   344

static bool IsWateredTile(TileIndex tile)

   345

{

   346

	byte m5 = _m[tile].m5;

   347

   348

	switch (GetTileType(tile)) {

   349

		case MP_WATER:

   350

			// true, if not coast/riverbank

   351

			return m5 != 1;

   352

   353

		case MP_STATION:

   354

			// returns true if it is a dock-station

   355

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

   356

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

   357

   358

		case MP_TUNNELBRIDGE:

   359

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

   360

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

   361

   362

		default:

   363

			return false;

   364

	}

   365

}

   366

   367

// draw a canal styled water tile with dikes around

   368

void DrawCanalWater(TileIndex tile)

   369

{

   370

	uint wa;

   371

   372

	// determine the edges around with water.

   373

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

   374

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

   375

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

   376

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

   377

   378

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

   379

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

   380

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

   381

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

   382

   383

	// right corner

   384

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

   385

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

   386

   387

	// bottom corner

   388

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

   389

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

   390

   391

	// left corner

   392

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

   393

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

   394

   395

	// upper corner

   396

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

   397

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

   398

}

   399

   400

typedef struct LocksDrawTileStruct {

   401

	int8 delta_x, delta_y, delta_z;

   402

	byte width, height, depth;

   403

	SpriteID image;

   404

} LocksDrawTileStruct;

   405

   406

#include "table/water_land.h"

   407

   408

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

   409

	uint32 palette, uint base

   410

)

   411

{

   412

	uint32 image;

   413

   414

	DrawGroundSprite(wdts++->image);

   415

   416

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

   417

		image =	wdts->image + base;

   418

		if (_display_opt & DO_TRANS_BUILDINGS) {

   419

			MAKE_TRANSPARENT(image);

   420

		} else {

   421

			image |= palette;

   422

		}

   423

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

   424

	}

   425

}

   426

   427

static void DrawTile_Water(TileInfo *ti)

   428

{

   429

	// draw water tile

   430

	if (ti->map5 == 0) {

   431

		DrawGroundSprite(SPR_FLAT_WATER_TILE);

   432

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

   433

		return;

   434

	}

   435

   436

	// draw shore

   437

	if (ti->map5 == 1) {

   438

		assert(ti->tileh < 16);

   439

		DrawGroundSprite(_water_shore_sprites[ti->tileh]);

   440

		return;

   441

	}

   442

   443

	// draw shiplift

   444

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

   445

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

   446

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

   447

		return;

   448

	}

   449

   450

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

   451

}

   452

   453

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

   454

{

   455

	const WaterDrawTileStruct *wdts = _shipdepot_display_seq[image];

   456

   457

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

   458

   459

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

   460

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

   461

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

   462

	}

   463

}

   464

   465

   466

static uint GetSlopeZ_Water(const TileInfo* ti)

   467

{

   468

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

   469

}

   470

   471

static uint GetSlopeTileh_Water(const TileInfo *ti)

   472

{

   473

	return ti->tileh;

   474

}

   475

   476

static void GetAcceptedCargo_Water(TileIndex tile, AcceptedCargo ac)

   477

{

   478

	/* not used */

   479

}

   480

   481

static void GetTileDesc_Water(TileIndex tile, TileDesc *td)

   482

{

   483

	if (_m[tile].m5 == 0 && TilePixelHeight(tile) == 0)

   484

		td->str = STR_3804_WATER;

   485

	else if (_m[tile].m5 == 0)

   486

		td->str = STR_LANDINFO_CANAL;

   487

	else if (_m[tile].m5 == 1)

   488

		td->str = STR_3805_COAST_OR_RIVERBANK;

   489

	else if ((_m[tile].m5&0xF0) == 0x10)

   490

		td->str = STR_LANDINFO_LOCK;

   491

	else

   492

		td->str = STR_3806_SHIP_DEPOT;

   493

   494

	td->owner = GetTileOwner(tile);

   495

}

   496

   497

static void AnimateTile_Water(TileIndex tile)

   498

{

   499

	/* not used */

   500

}

   501

   502

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