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

const SpriteID _water_shore_sprites[15] = {

    20

	0, 0xFDF, 0xFE0, 0xFE4, 0xFDE, 0, 0xFE2, 0, 0xFE1, 0xFE5, 0, 0, 0xFE3, 0, 0

    21

};

    22

    23

    24

static void FloodVehicle(Vehicle *v);

    25

    26

static bool IsClearWaterTile(TileIndex tile)

    27

{

    28

	TileInfo ti;

    29

	FindLandscapeHeightByTile(&ti, tile);

    30

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

    31

}

    32

    33

/** Build a ship depot.

    34

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

    35

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

    36

 * @param p2 unused

    37

 */

    38

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

    39

{

    40

	TileIndex tile, tile2;

    41

    42

	int32 cost, ret;

    43

	Depot *depot;

    44

    45

	SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);

    46

    47

	if (p1 > 3) return CMD_ERROR;

    48

    49

	tile = TileVirtXY(x, y);

    50

	if (!EnsureNoVehicle(tile)) return CMD_ERROR;

    51

    52

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

    53

	if (!EnsureNoVehicle(tile2)) return CMD_ERROR;

    54

    55

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

    56

		return_cmd_error(STR_3801_MUST_BE_BUILT_ON_WATER);

    57

    58

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

    59

	if (CmdFailed(ret)) return CMD_ERROR;

    60

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

    61

	if (CmdFailed(ret)) return CMD_ERROR;

    62

    63

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

    64

	cost = 0;

    65

    66

	depot = AllocateDepot();

    67

	if (depot == NULL) return CMD_ERROR;

    68

    69

	if (flags & DC_EXEC) {

    70

		depot->xy = tile;

    71

		_last_built_ship_depot_tile = tile;

    72

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

    73

    74

		ModifyTile(tile,

    75

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

    76

			(0x80 + p1*2)

    77

		);

    78

    79

		ModifyTile(tile2,

    80

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

    81

			(0x81 + p1*2)

    82

		);

    83

	}

    84

    85

	return cost + _price.build_ship_depot;

    86

}

    87

    88

static int32 RemoveShipDepot(TileIndex tile, uint32 flags)

    89

{

    90

	TileIndex tile2;

    91

    92

	if (!CheckTileOwnership(tile))

    93

		return CMD_ERROR;

    94

    95

	if (!EnsureNoVehicle(tile))

    96

		return CMD_ERROR;

    97

    98

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

    99

   100

	if (!EnsureNoVehicle(tile2))

   101

		return CMD_ERROR;

   102

   103

	if (flags & DC_EXEC) {

   104

		/* Kill the depot */

   105

		DoDeleteDepot(tile);

   106

   107

		/* Make the tiles water */

   108

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

   109

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

   110

	}

   111

   112

	return _price.remove_ship_depot;

   113

}

   114

   115

// build a shiplift

   116

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

   117

{

   118

	int32 ret;

   119

	int delta;

   120

   121

	// middle tile

   122

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

   123

	if (ret == CMD_ERROR) return CMD_ERROR;

   124

   125

	delta = TileOffsByDir(dir);

   126

	// lower 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

	// upper tile

   132

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

   133

	if (ret == CMD_ERROR) return CMD_ERROR;

   134

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

   135

   136

	if (flags & DC_EXEC) {

   137

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

   138

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

   139

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

   140

	}

   141

   142

	return _price.clear_water * 22 >> 3;

   143

}

   144

   145

static int32 RemoveShiplift(TileIndex tile, uint32 flags)

   146

{

   147

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

   148

   149

	// make sure no vehicle is on the tile.

   150

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

   151

		return CMD_ERROR;

   152

   153

	if (flags & DC_EXEC) {

   154

		DoClearSquare(tile);

   155

		DoClearSquare(tile + delta);

   156

		DoClearSquare(tile - delta);

   157

	}

   158

   159

	return _price.clear_water * 2;

   160

}

   161

   162

static void MarkTilesAroundDirty(TileIndex tile)

   163

{

   164

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

   165

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

   166

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

   167

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

   168

}

   169

   170

/** Builds a lock (ship-lift)

   171

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

   172

 * @param p1 unused

   173

 * @param p2 unused

   174

 */

   175

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

   176

{

   177

	TileIndex tile = TileVirtXY(x, y);

   178

	uint tileh;

   179

   180

	SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);

   181

	tileh = GetTileSlope(tile, NULL);

   182

   183

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

   184

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

   185

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

   186

	}

   187

   188

	return_cmd_error(STR_1000_LAND_SLOPED_IN_WRONG_DIRECTION);

   189

}

   190

   191

/** Build a piece of canal.

   192

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

   193

 * @param p1 start tile of stretch-dragging

   194

 * @param p2 unused

   195

 */

   196

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

   197

{

   198

	int32 ret, cost;

   199

	int size_x, size_y;

   200

	int sx, sy;

   201

   202

	if (p1 > MapSize()) return CMD_ERROR;

   203

   204

	sx = TileX(p1);

   205

	sy = TileY(p1);

   206

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

   207

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

   208

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

   209

   210

	SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);

   211

   212

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

   213

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

   214

	size_x = (x - sx) + 1;

   215

	size_y = (y - sy) + 1;

   216

   217

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

   218

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

   219

   220

	cost = 0;

   221

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

   222

		ret = 0;

   223

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

   224

   225

			// can't make water of water!

   226

			if (IsTileType(tile, MP_WATER)) {

   227

				_error_message = STR_1007_ALREADY_BUILT;

   228

			} else {

   229

				/* is middle piece of a bridge? */

   230

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

   231

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

   232

						return_cmd_error(STR_5800_OBJECT_IN_THE_WAY);

   233

   234

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

   235

						return_cmd_error(STR_1007_ALREADY_BUILT);

   236

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

   237

				} else

   238

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

   239

   240

				if (CmdFailed(ret)) return CMD_ERROR;

   241

				cost += ret;

   242

   243

				/* execute modifications */

   244

				if (flags & DC_EXEC) {

   245

					if (IsTileType(tile, MP_TUNNELBRIDGE)) {

   246

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

   247

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

   248

					} else {

   249

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

   250

					}

   251

					// mark the tiles around dirty too

   252

					MarkTilesAroundDirty(tile);

   253

				}

   254

   255

				cost += _price.clear_water;

   256

			}

   257

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

   258

   259

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

   260

}

   261

   262

static int32 ClearTile_Water(TileIndex tile, byte flags)

   263

{

   264

	byte m5 = _m[tile].m5;

   265

	uint slope;

   266

   267

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

   268

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

   269

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

   270

			return_cmd_error(STR_3807_CAN_T_BUILD_ON_WATER);

   271

   272

		// Make sure no vehicle is on the tile

   273

		if (!EnsureNoVehicle(tile))

   274

			return CMD_ERROR;

   275

   276

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

   277

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

   278

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

   279

			return_cmd_error(STR_0002_TOO_CLOSE_TO_EDGE_OF_MAP);

   280

   281

		if (m5 == 0) {

   282

			if (flags & DC_EXEC)

   283

				DoClearSquare(tile);

   284

			return _price.clear_water;

   285

		} else if (m5 == 1) {

   286

			slope = GetTileSlope(tile,NULL);

   287

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

   288

				if (flags & DC_EXEC)

   289

					DoClearSquare(tile);

   290

				return _price.clear_water;

   291

			}

   292

			if (flags & DC_EXEC)

   293

				DoClearSquare(tile);

   294

			return _price.purchase_land;

   295

		} else

   296

			return CMD_ERROR;

   297

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

   298

		// shiplift

   299

   300

		static const TileIndexDiffC _shiplift_tomiddle_offs[] = {

   301

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

   302

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

   303

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

   304

		};

   305

   306

		if (flags & DC_AUTO) return_cmd_error(STR_2004_BUILDING_MUST_BE_DEMOLISHED);

   307

		// don't allow water to delete it.

   308

		if (_current_player == OWNER_WATER) return CMD_ERROR;

   309

		// move to the middle tile..

   310

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

   311

	} else {

   312

		// ship depot

   313

		if (flags & DC_AUTO)

   314

			return_cmd_error(STR_2004_BUILDING_MUST_BE_DEMOLISHED);

   315

   316

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

   317

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

   318

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

   319

		else

   320

			return CMD_ERROR;

   321

   322

		return RemoveShipDepot(tile,flags);

   323

	}

   324

}

   325

   326

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

   327

static bool IsWateredTile(TileIndex tile)

   328

{

   329

	byte m5 = _m[tile].m5;

   330

   331

	switch (GetTileType(tile)) {

   332

		case MP_WATER:

   333

			// true, if not coast/riverbank

   334

			return m5 != 1;

   335

   336

		case MP_STATION:

   337

			// returns true if it is a dock-station

   338

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

   339

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

   340

   341

		case MP_TUNNELBRIDGE:

   342

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

   343

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

   344

   345

		default:

   346

			return false;

   347

	}

   348

}

   349

   350

// draw a canal styled water tile with dikes around

   351

void DrawCanalWater(TileIndex tile)

   352

{

   353

	uint wa;

   354

   355

	// determine the edges around with water.

   356

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

   357

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

   358

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

   359

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

   360

   361

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

   362

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

   363

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

   364

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

   365

   366

	// right corner

   367

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

   368

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

   369

   370

	// bottom corner

   371

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

   372

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

   373

   374

	// left corner

   375

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

   376

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

   377

   378

	// upper corner

   379

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

   380

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

   381

}

   382

   383

typedef struct LocksDrawTileStruct {

   384

	int8 delta_x, delta_y, delta_z;

   385

	byte width, height, depth;

   386

	SpriteID image;

   387

} LocksDrawTileStruct;

   388

   389

#include "table/water_land.h"

   390

   391

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

   392

	uint32 palette, uint base

   393

)

   394

{

   395

	uint32 image;

   396

   397

	DrawGroundSprite(wdts++->image);

   398

   399

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

   400

		image =	wdts->image + base;

   401

		if (_display_opt & DO_TRANS_BUILDINGS) {

   402

			MAKE_TRANSPARENT(image);

   403

		} else {

   404

			image |= palette;

   405

		}

   406

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

   407

	}

   408

}

   409

   410

static void DrawTile_Water(TileInfo *ti)

   411

{

   412

	// draw water tile

   413

	if (ti->map5 == 0) {

   414

		DrawGroundSprite(0xFDD);

   415

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

   416

		return;

   417

	}

   418

   419

	// draw shore

   420

	if (ti->map5 == 1) {

   421

		assert(ti->tileh < 16);

   422

		DrawGroundSprite(_water_shore_sprites[ti->tileh]);

   423

		return;

   424

	}

   425

   426

	// draw shiplift

   427

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

   428

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

   429

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

   430

		return;

   431

	}

   432

   433

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

   434

}

   435

   436

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

   437

{

   438

	const WaterDrawTileStruct *wdts = _shipdepot_display_seq[image];

   439

   440

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

   441

   442

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

   443

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

   444

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

   445

	}

   446

}

   447

   448

   449

static uint GetSlopeZ_Water(TileInfo *ti)

   450

{

   451

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

   452

}

   453

   454

static uint GetSlopeTileh_Water(const TileInfo *ti)

   455

{

   456

	return ti->tileh;

   457

}

   458

   459

static void GetAcceptedCargo_Water(TileIndex tile, AcceptedCargo ac)

   460

{

   461

	/* not used */

   462

}

   463

   464

static void GetTileDesc_Water(TileIndex tile, TileDesc *td)

   465

{

   466

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

   467

		td->str = STR_3804_WATER;

   468

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

   469

		td->str = STR_LANDINFO_CANAL;

   470

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

   471

		td->str = STR_3805_COAST_OR_RIVERBANK;

   472

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

   473

		td->str = STR_LANDINFO_LOCK;

   474

	else

   475

		td->str = STR_3806_SHIP_DEPOT;

   476

   477

	td->owner = GetTileOwner(tile);

   478

}

   479

   480

static void AnimateTile_Water(TileIndex tile)

   481

{

   482

	/* not used */

   483

}

   484

   485

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

   486

{

   487

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

   488

   489

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

   490

	if (IsTileType(target, MP_WATER))

   491

		return;

   492

   493

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

   494

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

   495

		return;

   496

   497

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

   498

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

   499

		// make coast..

   500

		switch (GetTileType(target)) {

   501

			case MP_RAILWAY: {

   502

				uint slope = GetTileSlope(target, NULL);

   503

				byte tracks = GB(_m[target].m5, 0, 6);

   504