1

/* $Id$ */

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     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"

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#include "town.h"

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#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

    24

static const SpriteID _water_shore_sprites[] = {

    25

	0,

    26

	SPR_SHORE_TILEH_1,

    27

	SPR_SHORE_TILEH_2,

    28

	SPR_SHORE_TILEH_3,

    29

	SPR_SHORE_TILEH_4,

    30

	0,

    31

	SPR_SHORE_TILEH_6,

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	0,

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	SPR_SHORE_TILEH_8,

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	SPR_SHORE_TILEH_9,

    35

	0,

    36

	0,

    37

	SPR_SHORE_TILEH_12,

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	0,

    39

	0

    40

};

    41

    42

    43

static Vehicle *FindFloodableVehicleOnTile(TileIndex tile);

    44

static void FloodVehicle(Vehicle *v);

    45

    46

/** Build a ship depot.

    47

 * @param tile tile where ship depot is built

    48

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

    49

 * @param p2 unused

    50

 */

    51

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

    52

{

    53

	TileIndex tile2;

    54

    55

	int32 cost, ret;

    56

	Depot *depot;

    57

    58

	SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);

    59

    60

	if (p1 > 1) return CMD_ERROR;

    61

    62

	if (!EnsureNoVehicle(tile)) return CMD_ERROR;

    63

    64

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

    65

	if (!EnsureNoVehicle(tile2)) return CMD_ERROR;

    66

    67

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

    68

		return_cmd_error(STR_3801_MUST_BE_BUILT_ON_WATER);

    69

    70

	if (IsBridgeAbove(tile) || IsBridgeAbove(tile2)) return_cmd_error(STR_5007_MUST_DEMOLISH_BRIDGE_FIRST);

    71

    72

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

    73

	if (CmdFailed(ret)) return CMD_ERROR;

    74

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

    75

	if (CmdFailed(ret)) return CMD_ERROR;

    76

    77

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

    78

	cost = 0;

    79

    80

	depot = AllocateDepot();

    81

	if (depot == NULL) return CMD_ERROR;

    82

    83

	if (flags & DC_EXEC) {

    84

		depot->xy = tile;

    85

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

    86

    87

		MakeShipDepot(tile, _current_player, DEPOT_NORTH, (Axis)p1);

    88

		MakeShipDepot(tile2, _current_player, DEPOT_SOUTH, (Axis)p1);

    89

		MarkTileDirtyByTile(tile);

    90

		MarkTileDirtyByTile(tile2);

    91

	}

    92

    93

	return cost + _price.build_ship_depot;

    94

}

    95

    96

static int32 RemoveShipDepot(TileIndex tile, uint32 flags)

    97

{

    98

	TileIndex tile2;

    99

   100

	if (!IsShipDepot(tile)) return CMD_ERROR;

   101

	if (!CheckTileOwnership(tile)) return CMD_ERROR;

   102

	if (!EnsureNoVehicle(tile)) return CMD_ERROR;

   103

   104

	tile2 = GetOtherShipDepotTile(tile);

   105

   106

	if (!EnsureNoVehicle(tile2)) return CMD_ERROR;

   107

   108

	if (flags & DC_EXEC) {

   109

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

   110

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

   111

   112

		MakeWater(tile);

   113

		MakeWater(tile2);

   114

		MarkTileDirtyByTile(tile);

   115

		MarkTileDirtyByTile(tile2);

   116

	}

   117

   118

	return _price.remove_ship_depot;

   119

}

   120

   121

// build a shiplift

   122

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

   123

{

   124

	int32 ret;

   125

	int delta;

   126

   127

	// middle tile

   128

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

   129

	if (CmdFailed(ret)) return CMD_ERROR;

   130

   131

	delta = TileOffsByDiagDir(dir);

   132

	// lower tile

   133

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

   134

	if (CmdFailed(ret)) return CMD_ERROR;

   135

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

   136

		return_cmd_error(STR_1000_LAND_SLOPED_IN_WRONG_DIRECTION);

   137

	}

   138

   139

	// upper tile

   140

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

   141

	if (CmdFailed(ret)) return CMD_ERROR;

   142

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

   143

		return_cmd_error(STR_1000_LAND_SLOPED_IN_WRONG_DIRECTION);

   144

	}

   145

   146

	if ((MayHaveBridgeAbove(tile) && IsBridgeAbove(tile)) ||

   147

	    (MayHaveBridgeAbove(tile - delta) && IsBridgeAbove(tile - delta)) ||

   148

	    (MayHaveBridgeAbove(tile + delta) && IsBridgeAbove(tile + delta))) {

   149

		return_cmd_error(STR_5007_MUST_DEMOLISH_BRIDGE_FIRST);

   150

	}

   151

   152

	if (flags & DC_EXEC) {

   153

		MakeLock(tile, _current_player, dir);

   154

		MarkTileDirtyByTile(tile);

   155

		MarkTileDirtyByTile(tile - delta);

   156

		MarkTileDirtyByTile(tile + delta);

   157

	}

   158

   159

	return _price.clear_water * 22 >> 3;

   160

}

   161

   162

static int32 RemoveShiplift(TileIndex tile, uint32 flags)

   163

{

   164

	TileIndexDiff delta = TileOffsByDiagDir(GetLockDirection(tile));

   165

   166

	if (!CheckTileOwnership(tile)) return CMD_ERROR;

   167

   168

	// make sure no vehicle is on the tile.

   169

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

   170

		return CMD_ERROR;

   171

   172

	if (flags & DC_EXEC) {

   173

		DoClearSquare(tile);

   174

		DoClearSquare(tile + delta);

   175

		DoClearSquare(tile - delta);

   176

	}

   177

   178

	return _price.clear_water * 2;

   179

}

   180

   181

static void MarkTilesAroundDirty(TileIndex tile)

   182

{

   183

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

   184

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

   185

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

   186

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

   187

}

   188

   189

/** Builds a lock (ship-lift)

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 * @param tile tile where to place the lock

   191

 * @param p1 unused

   192

 * @param p2 unused

   193

 */

   194

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

   195

{

   196

	DiagDirection dir;

   197

   198

	SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);

   199

   200

	switch (GetTileSlope(tile, NULL)) {

   201

		case SLOPE_SW: dir = DIAGDIR_SW; break;

   202

		case SLOPE_SE: dir = DIAGDIR_SE; break;

   203

		case SLOPE_NW: dir = DIAGDIR_NW; break;

   204

		case SLOPE_NE: dir = DIAGDIR_NE; break;

   205

		default: return_cmd_error(STR_1000_LAND_SLOPED_IN_WRONG_DIRECTION);

   206

	}

   207

	return DoBuildShiplift(tile, dir, flags);

   208

}

   209

   210

/** Build a piece of canal.

   211

 * @param tile end tile of stretch-dragging

   212

 * @param p1 start tile of stretch-dragging

   213

 * @param p2 ctrl pressed - toggles ocean / canals at sealevel

   214

 */

   215

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

   216

{

   217

	int32 cost;

   218

	int size_x, size_y;

   219

	int x;

   220

	int y;

   221

	int sx, sy;

   222

   223

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

   224

   225

	x = TileX(tile);

   226

	y = TileY(tile);

   227

	sx = TileX(p1);

   228

	sy = TileY(p1);

   229

   230

	SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);

   231

   234

	size_x = (x - sx) + 1;

   235

	size_y = (y - sy) + 1;

   236

   237

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

   238

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

   239

   240

	cost = 0;

   241

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

   242

		int32 ret;

   243

   244

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

   245

			return_cmd_error(STR_0007_FLAT_LAND_REQUIRED);

   246

		}

   247

   248

		// can't make water of water!

   249

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

   250

   251

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

   252

		if (CmdFailed(ret)) return ret;

   253

		cost += ret;

   254

   255

		if (flags & DC_EXEC) {

   256

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

   257

				MakeWater(tile);

   258

			} else {

   259

				MakeCanal(tile, _current_player);

   260

			}

   261

			MarkTileDirtyByTile(tile);

   262

			MarkTilesAroundDirty(tile);

   263

		}

   264

   265

		cost += _price.clear_water;

   266

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

   267

   268

	if (cost == 0) {

   269

		return_cmd_error(STR_1007_ALREADY_BUILT);

   270

	} else {

   271

		return cost;

   272

	}

   273

}

   274

   275

static int32 ClearTile_Water(TileIndex tile, byte flags)

   276

{

   277

	switch (GetWaterTileType(tile)) {

   278

		case WATER_CLEAR:

   279

			if (flags & DC_NO_WATER) return_cmd_error(STR_3807_CAN_T_BUILD_ON_WATER);

   280

   281

			// Make sure no vehicle is on the tile

   282

			if (!EnsureNoVehicle(tile)) return CMD_ERROR;

   283

   284

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

   285

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

   286

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

   287

				return_cmd_error(STR_0002_TOO_CLOSE_TO_EDGE_OF_MAP);

   288

			}

   289

   290

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

   291

   292

			if (flags & DC_EXEC) DoClearSquare(tile);

   293

			return _price.clear_water;

   294

   295

		case WATER_COAST: {

   296

			Slope slope = GetTileSlope(tile, NULL);

   297

   298

			// Make sure no vehicle is on the tile

   299

			if (!EnsureNoVehicle(tile)) return CMD_ERROR;

   300

   301

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

   302

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

   303

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

   304

				return_cmd_error(STR_0002_TOO_CLOSE_TO_EDGE_OF_MAP);

   305

			}

   306

   307

			if (flags & DC_EXEC) DoClearSquare(tile);

   308

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

   309

				return _price.clear_water;

   310

			} else {

   311

				return _price.purchase_land;

   312

			}

   313

		}

   314

   315

		case WATER_LOCK: {

   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

			if (_current_player == OWNER_WATER) return CMD_ERROR;

   324

			// move to the middle tile..

   325

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

   326

		}

   327

   328

		case WATER_DEPOT:

   329

			if (flags & DC_AUTO) return_cmd_error(STR_2004_BUILDING_MUST_BE_DEMOLISHED);

   330

			return RemoveShipDepot(tile, flags);

   331

   332

		default:

   333

			NOT_REACHED();

   334

			return 0;

   335

	}

   336

}

   337

   338

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

   339

static bool IsWateredTile(TileIndex tile)

   340

{

   341

	switch (GetTileType(tile)) {

   342

		case MP_WATER:

   343

			if (!IsCoast(tile)) return true;

   344

   345

			switch (GetTileSlope(tile, NULL)) {

   346

				case SLOPE_W:

   347

				case SLOPE_S:

   348

				case SLOPE_E:

   349

				case SLOPE_N:

   350

					return true;

   351

   352

				default:

   353

					return false;

   354

			}

   355

   356

		case MP_STATION: return IsOilRig(tile) || IsDock(tile) || IsBuoy(tile);

   357

		default:         return false;

   358

	}

   359

}

   360

   361

// draw a canal styled water tile with dikes around

   362

void DrawCanalWater(TileIndex tile)

   363

{

   364

	uint wa;

   365

   366

	// determine the edges around with water.

   367

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

   368

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

   369

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

   370

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

   371

   372

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

   373

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

   374

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

   375

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

   376

   377

	// right corner

   378

	switch (wa & 0x03) {

   379

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

   380

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

   381

	}

   382

   383

	// bottom corner

   384

	switch (wa & 0x06) {

   385

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

   386

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

   387

	}

   388

   389

	// left corner

   390

	switch (wa & 0x0C) {

   391

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

   392

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

   393

	}

   394

   395

	// upper corner

   396

	switch (wa & 0x09) {

   397

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

   398

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

   399

	}

   400

}

   401

   402

typedef struct LocksDrawTileStruct {

   403

	int8 delta_x, delta_y, delta_z;

   404

	byte width, height, depth;

   405

	SpriteID image;

   406

} LocksDrawTileStruct;

   407

   408

#include "table/water_land.h"

   409

   410

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

   411

	SpriteID palette, uint base

   412

)

   413

{

   414

	DrawGroundSprite(wdts++->image, PAL_NONE);

   415

   416

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

   417

		SpriteID image = wdts->image + base;

   418

		SpriteID pal;

   419

   420

		if (_display_opt & DO_TRANS_BUILDINGS) {

   421

			SETBIT(image, PALETTE_MODIFIER_TRANSPARENT);

   422

			pal = PALETTE_TO_TRANSPARENT;

   423

		} else {

   424

			pal = palette;

   425

		}

   426

   427

		AddSortableSpriteToDraw(image, pal,

   428

			ti->x + wdts->delta_x, ti->y + wdts->delta_y,

   429

			wdts->width, wdts->height,

   430

			wdts->unk, ti->z + wdts->delta_z);

   431

	}

   432

}

   433

   434

static void DrawTile_Water(TileInfo *ti)

   435

{

   436

	switch (GetWaterTileType(ti->tile)) {

   437

		case WATER_CLEAR:

   438

			DrawGroundSprite(SPR_FLAT_WATER_TILE, PAL_NONE);

   439

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

   440

			DrawBridgeMiddle(ti);

   441

			break;

   442

   443

		case WATER_COAST:

   444

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

   445

			if (_coast_base != 0) {

   446

				DrawGroundSprite(_coast_base + ti->tileh, PAL_NONE);

   447

			} else {

   448

				DrawGroundSprite(_water_shore_sprites[ti->tileh], PAL_NONE);

   449

			}

   450

			DrawBridgeMiddle(ti);

   451

			break;

   452

   453

		case WATER_LOCK: {

   454

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

   455

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

   456

		} break;

   457

   458

		case WATER_DEPOT:

   459

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

   460

			break;

   461

	}

   462

}

   463

   464

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

   465

{

   466

	const WaterDrawTileStruct *wdts = _shipdepot_display_seq[image];

   467

   468

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

   469

   470

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

   471

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

   472

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

   473

	}

   474

}

   475

   476

   477

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

   478

{

   479

	uint z;

   480

	Slope tileh = GetTileSlope(tile, &z);

   481

   482

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

   483

}

   484

   485

static Slope GetSlopeTileh_Water(TileIndex tile, Slope tileh)

   486

{

   487

	return tileh;

   488

}

   489