1

/* $Id$ */

     2

     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

    19

static void FloodVehicle(Vehicle *v);

    20

    21

static bool IsClearWaterTile(TileIndex tile)

    22

{

    23

	TileInfo ti;

    24

	FindLandscapeHeightByTile(&ti, tile);

    25

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

    26

}

    27

    28

/** Build a ship depot.

    29

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

    30

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

    31

 * @param p2 unused

    32

 */

    33

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

    34

{

    35

	TileIndex tile, tile2;

    36

    37

	int32 cost, ret;

    38

	Depot *depot;

    39

    40

	SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);

    41

    42

	if (p1 > 3) return CMD_ERROR;

    43

    44

	tile = TileVirtXY(x, y);

    45

	if (!EnsureNoVehicle(tile)) return CMD_ERROR;

    46

    47

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

    48

	if (!EnsureNoVehicle(tile2)) return CMD_ERROR;

    49

    50

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

    51

		return_cmd_error(STR_3801_MUST_BE_BUILT_ON_WATER);

    52

    53

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

    54

	if (CmdFailed(ret)) return CMD_ERROR;

    55

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

    56

	if (CmdFailed(ret)) return CMD_ERROR;

    57

    58

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

    59

	cost = 0;

    60

    61

	depot = AllocateDepot();

    62

	if (depot == NULL) return CMD_ERROR;

    63

    64

	if (flags & DC_EXEC) {

    65

		depot->xy = tile;

    66

		_last_built_ship_depot_tile = tile;

    67

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

    68

    69

		ModifyTile(tile,

    70

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

    71

			(0x80 + p1*2)

    72

		);

    73

    74

		ModifyTile(tile2,

    75

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

    76

			(0x81 + p1*2)

    77

		);

    78

	}

    79

    80

	return cost + _price.build_ship_depot;

    81

}

    82

    83

static int32 RemoveShipDepot(TileIndex tile, uint32 flags)

    84

{

    85

	TileIndex tile2;

    86

    87

	if (!CheckTileOwnership(tile))

    88

		return CMD_ERROR;

    89

    90

	if (!EnsureNoVehicle(tile))

    91

		return CMD_ERROR;

    92

    93

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

    94

    95

	if (!EnsureNoVehicle(tile2))

    96

		return CMD_ERROR;

    97

    98

	if (flags & DC_EXEC) {

    99

		/* Kill the depot */

   100

		DoDeleteDepot(tile);

   101

   102

		/* Make the tiles water */

   103

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

   104

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

   105

	}

   106

   107

	return _price.remove_ship_depot;

   108

}

   109

   110

// build a shiplift

   111

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

   112

{

   113

	int32 ret;

   114

	int delta;

   115

   116

	// middle tile

   117

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

   118

	if (ret == CMD_ERROR) return CMD_ERROR;

   119

   120

	delta = TileOffsByDir(dir);

   121

	// lower tile

   122

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

   123

	if (ret == CMD_ERROR) return CMD_ERROR;

   124

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

   125

   126

	// upper tile

   127

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

   128

	if (ret == CMD_ERROR) return CMD_ERROR;

   129

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

   130

   131

	if (flags & DC_EXEC) {

   132

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

   133

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

   134

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

   135

	}

   136

   137

	return _price.clear_water * 22 >> 3;

   138

}

   139

   140

static int32 RemoveShiplift(TileIndex tile, uint32 flags)

   141

{

   142

	TileIndexDiff delta = TileOffsByDir(_m[tile].m5 & 3);

   143

   144

	// make sure no vehicle is on the tile.

   145

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

   146

		return CMD_ERROR;

   147

   148

	if (flags & DC_EXEC) {

   149

		DoClearSquare(tile);

   150

		DoClearSquare(tile + delta);

   151

		DoClearSquare(tile - delta);

   152

	}

   153

   154

	return _price.clear_water * 2;

   155

}

   156

   157

static void MarkTilesAroundDirty(TileIndex tile)

   158

{

   159

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

   160

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

   161

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

   162

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

   163

}

   164

   165

/** Builds a lock (ship-lift)

   166

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

   167

 * @param p1 unused

   168

 * @param p2 unused

   169

 */

   170

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

   171

{

   172

	TileIndex tile = TileVirtXY(x, y);

   173

	uint tileh;

   174

   175

	SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);

   176

	tileh = GetTileSlope(tile, NULL);

   177

   178

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

   179

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

   180

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

   181

	}

   182

   183

	return_cmd_error(STR_1000_LAND_SLOPED_IN_WRONG_DIRECTION);

   184

}

   185

   186

/** Build a piece of canal.

   187

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

   188

 * @param p1 start tile of stretch-dragging

   189

 * @param p2 unused

   190

 */

   191

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

   192

{

   193

	int32 ret, cost;

   194

	int size_x, size_y;

   195

	int sx, sy;

   196

   197

	if (p1 > MapSize()) return CMD_ERROR;

   198

   199

	sx = TileX(p1);

   200

	sy = TileY(p1);

   201

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

   202

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

   203

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

   204

   205

	SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);

   206

   207

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

   208

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

   209

	size_x = (x - sx) + 1;

   210

	size_y = (y - sy) + 1;

   211

   212

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

   213

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

   214

   215

	cost = 0;

   216

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

   217

		ret = 0;

   218

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

   219

   220

			// can't make water of water!

   221

			if (IsTileType(tile, MP_WATER)) {

   222

				_error_message = STR_1007_ALREADY_BUILT;

   223

			} else {

   224

				/* is middle piece of a bridge? */

   225

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

   226

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

   227

						return_cmd_error(STR_5800_OBJECT_IN_THE_WAY);

   228

   229

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

   230

						return_cmd_error(STR_1007_ALREADY_BUILT);

   231

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

   232

				} else

   233

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

   234

   235

				if (CmdFailed(ret)) return CMD_ERROR;

   236

				cost += ret;

   237

   238

				/* execute modifications */

   239

				if (flags & DC_EXEC) {

   240

					if (IsTileType(tile, MP_TUNNELBRIDGE)) {

   241

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

   242

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

   243

					} else {

   244

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

   245

					}

   246

					// mark the tiles around dirty too

   247

					MarkTilesAroundDirty(tile);

   248

				}

   249

   250

				cost += _price.clear_water;

   251

			}

   252

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

   253

   254

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

   255

}

   256

   257

static int32 ClearTile_Water(TileIndex tile, byte flags)

   258

{

   259

	byte m5 = _m[tile].m5;

   260

	uint slope;

   261

   262

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

   263

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

   264

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

   265

			return_cmd_error(STR_3807_CAN_T_BUILD_ON_WATER);

   266

   267

		// Make sure no vehicle is on the tile

   268

		if (!EnsureNoVehicle(tile))

   269

			return CMD_ERROR;

   270

   271

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

   272

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

   273

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

   274

			return_cmd_error(STR_0002_TOO_CLOSE_TO_EDGE_OF_MAP);

   275

   276

		if (m5 == 0) {

   277

			if (flags & DC_EXEC)

   278

				DoClearSquare(tile);

   279

			return _price.clear_water;

   280

		} else if (m5 == 1) {

   281

			slope = GetTileSlope(tile,NULL);

   282

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

   283

				if (flags & DC_EXEC)

   284

					DoClearSquare(tile);

   285

				return _price.clear_water;

   286

			}

   287

			if (flags & DC_EXEC)

   288

				DoClearSquare(tile);

   289

			return _price.purchase_land;

   290

		} else

   291

			return CMD_ERROR;

   292

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

   293

		// shiplift

   294

   295

		static const TileIndexDiffC _shiplift_tomiddle_offs[] = {

   296

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

   297

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

   298

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

   299

		};

   300

   301

		if (flags & DC_AUTO) return_cmd_error(STR_2004_BUILDING_MUST_BE_DEMOLISHED);

   302

		// don't allow water to delete it.

   303

		if (_current_player == OWNER_WATER) return CMD_ERROR;

   304

		// move to the middle tile..

   305

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

   306

	} else {

   307

		// ship depot

   308

		if (flags & DC_AUTO)

   309

			return_cmd_error(STR_2004_BUILDING_MUST_BE_DEMOLISHED);

   310

   311

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

   312

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

   313

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

   314

		else

   315

			return CMD_ERROR;

   316

   317

		return RemoveShipDepot(tile,flags);

   318

	}

   319

}

   320

   321

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

   322

static bool IsWateredTile(TileIndex tile)

   323

{

   324

	byte m5 = _m[tile].m5;

   325

   326

	switch (GetTileType(tile)) {

   327

		case MP_WATER:

   328

			// true, if not coast/riverbank

   329

			return m5 != 1;

   330

   331

		case MP_STATION:

   332

			// returns true if it is a dock-station

   333

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

   334

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

   335

   336

		case MP_TUNNELBRIDGE:

   337

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

   338

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

   339

   340

		default:

   341

			return false;

   342

	}

   343

}

   344

   345

// draw a canal styled water tile with dikes around

   346

void DrawCanalWater(TileIndex tile)

   347

{

   348

	uint wa;

   349

   350

	// determine the edges around with water.

   351

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

   352

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

   353

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

   354

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

   355

   356

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

   357

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

   358

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

   359

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

   360

   361

	// right corner

   362

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

   363

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

   364

   365

	// bottom corner

   366

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

   367

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

   368

   369

	// left corner

   370

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

   371

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

   372

   373

	// upper corner

   374

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

   375

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

   376

}

   377

   378

typedef struct LocksDrawTileStruct {

   379

	int8 delta_x, delta_y, delta_z;

   380

	byte width, height, depth;

   381

	SpriteID image;

   382

} LocksDrawTileStruct;

   383

   384

#include "table/water_land.h"

   385

   386

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

   387

	uint32 palette, uint base

   388

)

   389

{

   390

	uint32 image;

   391

   392

	DrawGroundSprite(wdts++->image);

   393

   394

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

   395

		image =	wdts->image + base;

   396

		if (_display_opt & DO_TRANS_BUILDINGS) {

   397

			MAKE_TRANSPARENT(image);

   398

		} else {

   399

			image |= palette;

   400

		}

   401

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

   402

	}

   403

}

   404

   405

static void DrawTile_Water(TileInfo *ti)

   406

{

   407

	// draw water tile

   408

	if (ti->map5 == 0) {

   409

		DrawGroundSprite(0xFDD);

   410

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

   411

		return;

   412

	}

   413

   414

	// draw shore

   415

	if (ti->map5 == 1) {

   416

		assert(ti->tileh < 16);

   417

		DrawGroundSprite(_water_shore_sprites[ti->tileh]);

   418

		return;

   419

	}

   420

   421

	// draw shiplift

   422

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

   423

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

   424

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

   425

		return;

   426

	}

   427

   428

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

   429

}

   430

   431

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

   432

{

   433

	const WaterDrawTileStruct *wdts = _shipdepot_display_seq[image];

   434

   435

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

   436

   437

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

   438

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

   439

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

   440

	}

   441

}

   442

   443

   444

static uint GetSlopeZ_Water(TileInfo *ti)

   445

{

   446

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

   447

}

   448

   449

static uint GetSlopeTileh_Water(TileInfo *ti)

   450

{

   451

	return ti->tileh;

   452

}

   453

   454

static void GetAcceptedCargo_Water(TileIndex tile, AcceptedCargo ac)

   455

{

   456

	/* not used */

   457

}

   458

   459

static void GetTileDesc_Water(TileIndex tile, TileDesc *td)

   460

{

   461

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

   462

		td->str = STR_3804_WATER;

   463

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

   464

		td->str = STR_LANDINFO_CANAL;

   465

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

   466

		td->str = STR_3805_COAST_OR_RIVERBANK;

   467

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

   468

		td->str = STR_LANDINFO_LOCK;

   469

	else

   470

		td->str = STR_3806_SHIP_DEPOT;

   471

   472

	td->owner = GetTileOwner(tile);

   473

}

   474

   475

static void AnimateTile_Water(TileIndex tile)

   476

{

   477

	/* not used */

   478

}

   479

   480

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

   481

{

   482

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

   483

   484

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

   485

	if (IsTileType(target, MP_WATER))

   486

		return;

   487

   488

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

   489

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

   490

		return;

   491

   492

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

   493

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

   494

		// make coast..

   495

		switch (GetTileType(target)) {

   496

			case MP_RAILWAY: {

   497

				uint slope = GetTileSlope(target, NULL);

   498

				byte tracks = _m[target].m5 & 0x3F;

   499

				if (!(

   500

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

   501

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

   502

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

   503

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

   504

					break;