1

/* $Id$ */

     2

     3

#include "stdafx.h"

     4

#include "openttd.h"

     5

#include "bridge_map.h"

     6

#include "station_map.h"

     7

#include "table/sprites.h"

     8

#include "table/strings.h"

     9

#include "functions.h"

    10

#include "map.h"

    11

#include "tile.h"

    12

#include "vehicle.h"

    13

#include "viewport.h"

    14

#include "command.h"

    15

#include "town.h"

    16

#include "news.h"

    17

#include "sound.h"

    18

#include "depot.h"

    19

#include "vehicle_gui.h"

    20

#include "train.h"

    21

#include "water_map.h"

    22

#include "newgrf.h"

    23

#include "bridge.h"

    24

#include "airport.h"

    25

    26

const SpriteID _water_shore_sprites[15] = {

    27

	0,

    28

	SPR_SHORE_TILEH_1,

    29

	SPR_SHORE_TILEH_2,

    30

	SPR_SHORE_TILEH_3,

    31

	SPR_SHORE_TILEH_4,

    32

	0,

    33

	SPR_SHORE_TILEH_6,

    34

	0,

    35

	SPR_SHORE_TILEH_8,

    36

	SPR_SHORE_TILEH_9,

    37

	0,

    38

	0,

    39

	SPR_SHORE_TILEH_12,

    40

	0,

    41

	0

    42

};

    43

    44

    45

static Vehicle *FindFloodableVehicleOnTile(TileIndex tile);

    46

static void FloodVehicle(Vehicle *v);

    47

    48

/** Build a ship depot.

    49

 * @param tile tile where ship depot is built

    50

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

    51

 * @param p2 unused

    52

 */

    53

int32 CmdBuildShipDepot(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)

    54

{

    55

	TileIndex tile2;

    56

    57

	int32 cost, ret;

    58

	Depot *depot;

    59

    60

	SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);

    61

    62

	if (p1 > 1) return CMD_ERROR;

    63

    64

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

    65

    66

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

    67

		return_cmd_error(STR_3801_MUST_BE_BUILT_ON_WATER);

    68

    69

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

    70

	if (CmdFailed(ret)) return CMD_ERROR;

    71

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

    72

	if (CmdFailed(ret)) return CMD_ERROR;

    73

    74

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

    75

	cost = 0;

    76

    77

	depot = AllocateDepot();

    78

	if (depot == NULL) return CMD_ERROR;

    79

    80

	if (flags & DC_EXEC) {

    81

		depot->xy = tile;

    82

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

    83

    84

		MakeShipDepot(tile,_current_player, DEPOT_NORTH, p1);

    85

		MakeShipDepot(tile2,_current_player, DEPOT_SOUTH, p1);

    86

		MarkTileDirtyByTile(tile);

    87

		MarkTileDirtyByTile(tile2);

    88

	}

    89

    90

	return cost + _price.build_ship_depot;

    91

}

    92

    93

static int32 RemoveShipDepot(TileIndex tile, uint32 flags)

    94

{

    95

	TileIndex tile2;

    96

    97

	if (!IsShipDepot(tile)) return CMD_ERROR;

    98

	if (!CheckTileOwnership(tile)) return CMD_ERROR;

    99

	if (!EnsureNoVehicle(tile)) return CMD_ERROR;

   100

   101

	tile2 = GetOtherShipDepotTile(tile);

   102

   103

	if (!EnsureNoVehicle(tile2)) return CMD_ERROR;

   104

   105

	if (flags & DC_EXEC) {

   106

		/* Kill the depot, which is registered at the northernmost tile. Use that one */

   107

		DeleteDepot(GetDepotByTile(tile2 < tile ? tile2 : tile));

   108

   109

		MakeWater(tile);

   110

		MakeWater(tile2);

   111

		MarkTileDirtyByTile(tile);

   112

		MarkTileDirtyByTile(tile2);

   113

	}

   114

   115

	return _price.remove_ship_depot;

   116

}

   117

   118

// build a shiplift

   119

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

   120

{

   121

	int32 ret;

   122

	int delta;

   123

   124

	// middle tile

   125

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

   126

	if (CmdFailed(ret)) return CMD_ERROR;

   127

   128

	delta = TileOffsByDiagDir(dir);

   129

	// lower tile

   130

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

   131

	if (CmdFailed(ret)) return CMD_ERROR;

   132

	if (GetTileSlope(tile - delta, NULL) != SLOPE_FLAT) {

   133

		return_cmd_error(STR_1000_LAND_SLOPED_IN_WRONG_DIRECTION);

   134

	}

   135

   136

	// upper tile

   137

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

   138

	if (CmdFailed(ret)) return CMD_ERROR;

   139

	if (GetTileSlope(tile + delta, NULL) != SLOPE_FLAT) {

   140

		return_cmd_error(STR_1000_LAND_SLOPED_IN_WRONG_DIRECTION);

   141

	}

   142

   143

	if (flags & DC_EXEC) {

   144

		MakeLock(tile, _current_player, dir);

   145

		MarkTileDirtyByTile(tile);

   146

		MarkTileDirtyByTile(tile - delta);

   147

		MarkTileDirtyByTile(tile + delta);

   148

	}

   149

   150

	return _price.clear_water * 22 >> 3;

   151

}

   152

   153

static int32 RemoveShiplift(TileIndex tile, uint32 flags)

   154

{

   155

	TileIndexDiff delta = TileOffsByDiagDir(GetLockDirection(tile));

   156

   157

	if (!CheckTileOwnership(tile) && GetTileOwner(tile) != OWNER_NONE) return CMD_ERROR;

   158

   159

	// make sure no vehicle is on the tile.

   160

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

   161

		return CMD_ERROR;

   162

   163

	if (flags & DC_EXEC) {

   164

		DoClearSquare(tile);

   165

		DoClearSquare(tile + delta);

   166

		DoClearSquare(tile - delta);

   167

	}

   168

   169

	return _price.clear_water * 2;

   170

}

   171

   172

static void MarkTilesAroundDirty(TileIndex tile)

   173

{

   174

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

   175

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

   176

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

   177

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

   178

}

   179

   180

/** Builds a lock (ship-lift)

   181

 * @param tile tile where to place the lock

   182

 * @param p1 unused

   183

 * @param p2 unused

   184

 */

   185

int32 CmdBuildLock(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)

   186

{

   187

	DiagDirection dir;

   188

   189

	SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);

   190

   191

	switch (GetTileSlope(tile, NULL)) {

   192

		case SLOPE_SW: dir = DIAGDIR_SW; break;

   193

		case SLOPE_SE: dir = DIAGDIR_SE; break;

   194

		case SLOPE_NW: dir = DIAGDIR_NW; break;

   195

		case SLOPE_NE: dir = DIAGDIR_NE; break;

   196

		default: return_cmd_error(STR_1000_LAND_SLOPED_IN_WRONG_DIRECTION);

   197

	}

   198

	return DoBuildShiplift(tile, dir, flags);

   199

}

   200

   201

/** Build a piece of canal.

   202

 * @param tile end tile of stretch-dragging

   203

 * @param p1 start tile of stretch-dragging

   204

 * @param p2 ctrl pressed - toggles ocean / canals at sealevel (ocean only allowed in the scenario editor)

   205

 */

   206

int32 CmdBuildCanal(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)

   207

{

   208

	int32 cost;

   209

	int size_x, size_y;

   210

	int x;

   211

	int y;

   212

	int sx, sy;

   213

   214

	if (p1 >= MapSize()) return CMD_ERROR;

   215

	/* Outside of the editor you can only build canals, not oceans */

   216

	if (HASBIT(p2, 0) && _game_mode != GM_EDITOR) return CMD_ERROR;

   217

   218

	x = TileX(tile);

   219

	y = TileY(tile);

   220

	sx = TileX(p1);

   221

	sy = TileY(p1);

   222

   223

	SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);

   224

   225

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

   226

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

   227

	size_x = (x - sx) + 1;

   228

	size_y = (y - sy) + 1;

   229

   230

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

   231

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

   232

   233

	cost = 0;

   234

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

   235

		if (GetTileSlope(tile, NULL) != SLOPE_FLAT) {

   236

			return_cmd_error(STR_0007_FLAT_LAND_REQUIRED);

   237

		}

   238

   239

		// can't make water of water!

   240

		if (IsTileType(tile, MP_WATER) && (!IsTileOwner(tile, OWNER_WATER) || HASBIT(p2, 0))) continue;

   241

   242

		/* is middle piece of a bridge? */

   243

		if (IsBridgeTile(tile) && IsBridgeMiddle(tile)) {

   244

			if (IsTransportUnderBridge(tile)) {

   245

				return_cmd_error(STR_5800_OBJECT_IN_THE_WAY);

   246

			}

   247

   248

			if (IsWaterUnderBridge(tile) && (!IsTileOwner(tile, OWNER_WATER) || HASBIT(p2, 0))) return_cmd_error(STR_1007_ALREADY_BUILT);

   249

   250

			if (flags & DC_EXEC) {

   251

				if (TileHeight(tile) == 0 && HASBIT(p2, 0)) {

   252

					SetWaterUnderBridge(tile);

   253

				} else {

   254

					SetCanalUnderBridge(tile, _current_player);

   255

				}

   256

			}

   257

		} else {

   258

			/* no bridge, try to clear it. */

   259

			int32 ret = DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);

   260

   261

			if (CmdFailed(ret)) return ret;

   262

			cost += ret;

   263

   264

			if (flags & DC_EXEC) {

   265

				if (TileHeight(tile) == 0 && HASBIT(p2, 0)) {

   266

					MakeWater(tile);

   267

				} else {

   268

					MakeCanal(tile, _current_player);

   269

				}

   270

			}

   271

		}

   272

   273

		if (flags & DC_EXEC) {

   274

			MarkTileDirtyByTile(tile);

   275

			MarkTilesAroundDirty(tile);

   276

		}

   277

   278

		cost += _price.clear_water;

   279

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

   280

   281

	if (cost == 0) {

   282

		return_cmd_error(STR_1007_ALREADY_BUILT);

   283

	} else {

   284

		return cost;

   285

	}

   286

}

   287

   288

static int32 ClearTile_Water(TileIndex tile, byte flags)

   289

{

   290

	switch (GetWaterTileType(tile)) {

   291

		case WATER_CLEAR:

   292

			if (flags & DC_NO_WATER) return_cmd_error(STR_3807_CAN_T_BUILD_ON_WATER);

   293

   294

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

   295

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

   296

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

   297

				return_cmd_error(STR_0002_TOO_CLOSE_TO_EDGE_OF_MAP);

   298

			}

   299

   300

			/* Make sure no vehicle is on the tile */

   301

			if (!EnsureNoVehicle(tile)) return CMD_ERROR;

   302

   303

			if (GetTileOwner(tile) != OWNER_WATER && GetTileOwner(tile) != OWNER_NONE && !CheckTileOwnership(tile)) return CMD_ERROR;

   304

   305

			if (flags & DC_EXEC) DoClearSquare(tile);

   306

			return _price.clear_water;

   307

   308

		case WATER_COAST: {

   309

			Slope slope = GetTileSlope(tile, NULL);

   310

   311

			// Make sure no vehicle is on the tile

   312

			if (!EnsureNoVehicle(tile)) return CMD_ERROR;

   313

   314

			if (flags & DC_EXEC) DoClearSquare(tile);

   315

			if (slope == SLOPE_N || slope == SLOPE_E || slope == SLOPE_S || slope == SLOPE_W) {

   316

				return _price.clear_water;

   317

			} else {

   318

				return _price.purchase_land;

   319

			}

   320

		}

   321

   322

		case WATER_LOCK: {

   323

			static const TileIndexDiffC _shiplift_tomiddle_offs[] = {

   324

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

   325

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

   326

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

   327

			};

   328

   329

			if (flags & DC_AUTO) return_cmd_error(STR_2004_BUILDING_MUST_BE_DEMOLISHED);

   330

			if (_current_player == OWNER_WATER) return CMD_ERROR;

   331

			// move to the middle tile..

   332

			return RemoveShiplift(tile + ToTileIndexDiff(_shiplift_tomiddle_offs[GetSection(tile)]), flags);

   333

		}

   334

   335

		case WATER_DEPOT:

   336

			if (flags & DC_AUTO) return_cmd_error(STR_2004_BUILDING_MUST_BE_DEMOLISHED);

   337

			return RemoveShipDepot(tile, flags);

   338

   339

		default:

   340

			NOT_REACHED();

   341

			return 0;

   342

	}

   343

   344

	return 0; // useless but silences warning

   345

}

   346

   347

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

   348

static bool IsWateredTile(TileIndex tile)

   349

{

   350

	switch (GetTileType(tile)) {

   351

		case MP_WATER:

   352

			if (!IsCoast(tile)) return true;

   353

   354

			switch (GetTileSlope(tile, NULL)) {

   355

				case SLOPE_W:

   356

				case SLOPE_S:

   357

				case SLOPE_E:

   358

				case SLOPE_N:

   359

					return true;

   360

   361

				default:

   362

					return false;

   363

			}

   364

   365

		case MP_STATION:

   366

			return IsOilRig(tile) || IsDock(tile) || IsBuoy_(tile);

   367

   368

		case MP_TUNNELBRIDGE:

   369

			return IsBridge(tile) && IsBridgeMiddle(tile) && IsWaterUnderBridge(tile);

   370

   371

		default:

   372

			return false;

   373

	}

   374

}

   375

   376

// draw a canal styled water tile with dikes around

   377

void DrawCanalWater(TileIndex tile)

   378

{

   379

	uint wa;

   380

   381

	// determine the edges around with water.

   382

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

   383

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

   384

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

   385

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

   386

   387

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

   388

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

   389

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

   390

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

   391

   392

	// right corner

   393

	switch (wa & 0x03) {

   394

		case 0: DrawGroundSprite(SPR_CANALS_BASE + 57 + 4); break;

   395

		case 3: if (!IsWateredTile(TILE_ADDXY(tile, -1, 1))) DrawGroundSprite(SPR_CANALS_BASE + 57 + 8); break;

   396

	}

   397

   398

	// bottom corner

   399

	switch (wa & 0x06) {

   400

		case 0: DrawGroundSprite(SPR_CANALS_BASE + 57 + 5); break;

   401

		case 6: if (!IsWateredTile(TILE_ADDXY(tile, 1, 1))) DrawGroundSprite(SPR_CANALS_BASE + 57 + 9); break;

   402

	}

   403

   404

	// left corner

   405

	switch (wa & 0x0C) {

   406

		case  0: DrawGroundSprite(SPR_CANALS_BASE + 57 + 6); break;

   407

		case 12: if (!IsWateredTile(TILE_ADDXY(tile, 1, -1))) DrawGroundSprite(SPR_CANALS_BASE + 57 + 10); break;

   408

	}

   409

   410

	// upper corner

   411

	switch (wa & 0x09) {

   412

		case 0: DrawGroundSprite(SPR_CANALS_BASE + 57 + 7); break;

   413

		case 9: if (!IsWateredTile(TILE_ADDXY(tile, -1, -1))) DrawGroundSprite(SPR_CANALS_BASE + 57 + 11); break;

   414

	}

   415

}

   416

   417

typedef struct LocksDrawTileStruct {

   418

	int8 delta_x, delta_y, delta_z;

   419

	byte width, height, depth;

   420

	SpriteID image;

   421

} LocksDrawTileStruct;

   422

   423

#include "table/water_land.h"

   424

   425

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

   426

	uint32 palette, uint base

   427

)

   428

{

   429

	DrawGroundSprite(wdts++->image);

   430

   431

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

   432

		uint32 image = wdts->image + base;

   433

		if (_display_opt & DO_TRANS_BUILDINGS) {

   434

			MAKE_TRANSPARENT(image);

   435

		} else {

   436

			image |= palette;

   437

		}

   438

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

   439

	}

   440

}

   441

   442

static void DrawTile_Water(TileInfo *ti)

   443

{

   444

	switch (GetWaterTileType(ti->tile)) {

   445

		case WATER_CLEAR:

   446

			DrawGroundSprite(SPR_FLAT_WATER_TILE);

   447

			if (ti->z != 0 || !IsTileOwner(ti->tile, OWNER_WATER)) DrawCanalWater(ti->tile);

   448

			break;

   449

   450

		case WATER_COAST:

   451

			assert(!IsSteepSlope(ti->tileh));

   452

			if (_coast_base != 0) {

   453

				DrawGroundSprite(_coast_base + ti->tileh);

   454

			} else {

   455

				DrawGroundSprite(_water_shore_sprites[ti->tileh]);

   456

			}

   457

			break;

   458

   459

		case WATER_LOCK: {

   460

			const WaterDrawTileStruct *t = _shiplift_display_seq[GetSection(ti->tile)];

   461

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

   462

		} break;

   463

   464

		case WATER_DEPOT:

   465

			DrawWaterStuff(ti, _shipdepot_display_seq[GetSection(ti->tile)], PLAYER_SPRITE_COLOR(GetTileOwner(ti->tile)), 0);

   466

			break;

   467

	}

   468

}

   469

   470

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

   471

{

   472

	const WaterDrawTileStruct *wdts = _shipdepot_display_seq[image];

   473

   474

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

   475

   476

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

   477

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

   478

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

   479

	}

   480

}

   481

   482

   483

static uint GetSlopeZ_Water(TileIndex tile, uint x, uint y)

   484

{

   485

	uint z;

   486

	uint tileh = GetTileSlope(tile, &z);

   487

   488

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

   489

}

   490

   491

static Slope GetSlopeTileh_Water(TileIndex tile, Slope tileh)