1

/* $Id$ */

     2

     3

#include "stdafx.h"

     4

#include "openttd.h"

     5

#include "bridge_map.h"

     6

#include "bridge.h"

     7

#include "cmd_helper.h"

     8

#include "station_map.h"

     9

#include "table/sprites.h"

    10

#include "table/strings.h"

    11

#include "functions.h"

    12

#include "map.h"

    13

#include "tile.h"

    14

#include "vehicle.h"

    15

#include "viewport.h"

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#include "command.h"

    17

#include "town.h"

    18

#include "news.h"

    19

#include "sound.h"

    20

#include "depot.h"

    21

#include "vehicle_gui.h"

    22

#include "train.h"

    23

#include "water_map.h"

    24

#include "newgrf.h"

    25

    26

static const SpriteID _water_shore_sprites[] = {

    27

	0,

    28

	SPR_SHORE_TILEH_1,

    29

	SPR_SHORE_TILEH_2,

    30

	SPR_SHORE_TILEH_3,

    31

	SPR_SHORE_TILEH_4,

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	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 bit 0 depot orientation (Axis)

    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 (!EnsureNoVehicle(tile)) return CMD_ERROR;

    63

    64

	Axis axis = Extract<Axis, 0>(p1);

    65

    66

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

    67

	if (!EnsureNoVehicle(tile2)) return CMD_ERROR;

    68

    69

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

    70

		return_cmd_error(STR_3801_MUST_BE_BUILT_ON_WATER);

    71

    72

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

    73

    74

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

    75

	if (CmdFailed(ret)) return CMD_ERROR;

    76

	ret = DoCommand(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

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

    88

    89

		MakeShipDepot(tile,  _current_player, DEPOT_NORTH, axis);

    90

		MakeShipDepot(tile2, _current_player, DEPOT_SOUTH, axis);

    91

		MarkTileDirtyByTile(tile);

    92

		MarkTileDirtyByTile(tile2);

    93

	}

    94

    95

	return cost + _price.build_ship_depot;

    96

}

    97

    98

static int32 RemoveShipDepot(TileIndex tile, uint32 flags)

    99

{

   100

	TileIndex tile2;

   101

   102

	if (!IsShipDepot(tile)) return CMD_ERROR;

   103

	if (!CheckTileOwnership(tile)) return CMD_ERROR;

   104

	if (!EnsureNoVehicle(tile)) return CMD_ERROR;

   105

   106

	tile2 = GetOtherShipDepotTile(tile);

   107

   108

	if (!EnsureNoVehicle(tile2)) return CMD_ERROR;

   109

   110

	if (flags & DC_EXEC) {

   111

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

   112

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

   113

   114

		MakeWater(tile);

   115

		MakeWater(tile2);

   116

		MarkTileDirtyByTile(tile);

   117

		MarkTileDirtyByTile(tile2);

   118

	}

   119

   120

	return _price.remove_ship_depot;

   121

}

   122

   123

// build a shiplift

   124

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

   125

{

   126

	int32 ret;

   127

	int delta;

   128

   129

	// middle tile

   130

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

   131

	if (CmdFailed(ret)) return CMD_ERROR;

   132

   133

	delta = TileOffsByDiagDir(dir);

   134

	// lower tile

   135

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

   136

	if (CmdFailed(ret)) return CMD_ERROR;

   137

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

   138

		return_cmd_error(STR_1000_LAND_SLOPED_IN_WRONG_DIRECTION);

   139

	}

   140

   141

	// upper tile

   142

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

   143

	if (CmdFailed(ret)) return CMD_ERROR;

   144

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

   145

		return_cmd_error(STR_1000_LAND_SLOPED_IN_WRONG_DIRECTION);

   146

	}

   147

   148

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

   149

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

   150

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

   151

		return_cmd_error(STR_5007_MUST_DEMOLISH_BRIDGE_FIRST);

   152

	}

   153

   154

	if (flags & DC_EXEC) {

   155

		MakeLock(tile, _current_player, dir);

   156

		MarkTileDirtyByTile(tile);

   157

		MarkTileDirtyByTile(tile - delta);

   158

		MarkTileDirtyByTile(tile + delta);

   159

	}

   160

   161

	return _price.clear_water * 22 >> 3;

   162

}

   163

   164

static int32 RemoveShiplift(TileIndex tile, uint32 flags)

   165

{

   166

	TileIndexDiff delta = TileOffsByDiagDir(GetLockDirection(tile));

   167

   168

	if (!CheckTileOwnership(tile)) return CMD_ERROR;

   169

   170

	// make sure no vehicle is on the tile.

   171

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

   172

		return CMD_ERROR;

   173

   174

	if (flags & DC_EXEC) {

   175

		DoClearSquare(tile);

   176

		DoClearSquare(tile + delta);

   177

		DoClearSquare(tile - delta);

   178

	}

   179

   180

	return _price.clear_water * 2;

   181

}

   182

   183

static void MarkTilesAroundDirty(TileIndex tile)

   184

{

   185

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

   186

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

   187

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

   188

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

   189

}

   190

   191

/** Builds a lock (ship-lift)

   192

 * @param tile tile where to place the lock

   193

 * @param p1 unused

   194

 * @param p2 unused

   195

 */

   196

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

   197

{

   198

	DiagDirection dir;

   199

   200

	SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);

   201

   202

	switch (GetTileSlope(tile, NULL)) {

   203

		case SLOPE_SW: dir = DIAGDIR_SW; break;

   204

		case SLOPE_SE: dir = DIAGDIR_SE; break;

   205

		case SLOPE_NW: dir = DIAGDIR_NW; break;

   206

		case SLOPE_NE: dir = DIAGDIR_NE; break;

   207

		default: return_cmd_error(STR_1000_LAND_SLOPED_IN_WRONG_DIRECTION);

   208

	}

   209

	return DoBuildShiplift(tile, dir, flags);

   210

}

   211

   212

/** Build a piece of canal.

   213

 * @param tile end tile of stretch-dragging

   214

 * @param p1 start tile of stretch-dragging

   215

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

   216

 */

   217

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

   218

{

   219

	int32 cost;

   220

	int size_x, size_y;

   221

	int x;

   222

	int y;

   223

	int sx, sy;

   224

   225

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

   226

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

   227

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

   228

   229

	x = TileX(tile);

   230

	y = TileY(tile);

   231

	sx = TileX(p1);

   232

	sy = TileY(p1);

   233

   234

	SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);

   235

   236

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

   237

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

   238

	size_x = (x - sx) + 1;

   239

	size_y = (y - sy) + 1;

   240

   241

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

   242

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

   243

   244

	cost = 0;

   245

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

   246

		int32 ret;

   247

   248

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

   249

			return_cmd_error(STR_0007_FLAT_LAND_REQUIRED);

   250

		}

   251

   252

		// can't make water of water!

   253

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

   254

   255

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

   256

		if (CmdFailed(ret)) return ret;

   257

		cost += ret;

   258

   259

		if (flags & DC_EXEC) {

   260

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

   261

				MakeWater(tile);

   262

			} else {

   263

				MakeCanal(tile, _current_player);

   264

			}

   265

			MarkTileDirtyByTile(tile);

   266

			MarkTilesAroundDirty(tile);

   267

		}

   268

   269

		cost += _price.clear_water;

   270

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

   271

   272

	if (cost == 0) {

   273

		return_cmd_error(STR_1007_ALREADY_BUILT);

   274

	} else {

   275

		return cost;

   276

	}

   277

}

   278

   279

static int32 ClearTile_Water(TileIndex tile, byte flags)

   280

{

   281

	switch (GetWaterTileType(tile)) {

   282

		case WATER_TILE_CLEAR:

   283

			if (flags & DC_NO_WATER) return_cmd_error(STR_3807_CAN_T_BUILD_ON_WATER);

   284

   285

			// Make sure no vehicle is on the tile

   286

			if (!EnsureNoVehicle(tile)) return CMD_ERROR;

   287

   288

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

   289

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

   290

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

   291

				return_cmd_error(STR_0002_TOO_CLOSE_TO_EDGE_OF_MAP);

   292

			}

   293

   294

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

   295

   296

			if (flags & DC_EXEC) DoClearSquare(tile);

   297

			return _price.clear_water;

   298

   299

		case WATER_TILE_COAST: {

   300

			Slope slope = GetTileSlope(tile, NULL);

   301

   302

			// Make sure no vehicle is on the tile

   303

			if (!EnsureNoVehicle(tile)) return CMD_ERROR;

   304

   305

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

   306

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

   307

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

   308

				return_cmd_error(STR_0002_TOO_CLOSE_TO_EDGE_OF_MAP);

   309

			}

   310

   311

			if (flags & DC_EXEC) DoClearSquare(tile);

   312

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

   313

				return _price.clear_water;

   314

			} else {

   315

				return _price.purchase_land;

   316

			}

   317

		}

   318

   319

		case WATER_TILE_LOCK: {

   320

			static const TileIndexDiffC _shiplift_tomiddle_offs[] = {

   321

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

   322

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

   323

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

   324

			};

   325

   326

			if (flags & DC_AUTO) return_cmd_error(STR_2004_BUILDING_MUST_BE_DEMOLISHED);

   327

			if (_current_player == OWNER_WATER) return CMD_ERROR;

   328

			// move to the middle tile..

   329

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

   330

		}

   331

   332

		case WATER_TILE_DEPOT:

   333

			if (flags & DC_AUTO) return_cmd_error(STR_2004_BUILDING_MUST_BE_DEMOLISHED);

   334

			return RemoveShipDepot(tile, flags);

   335

   336

		default:

   337

			NOT_REACHED();

   338

			return 0;

   339

	}

   340

}

   341

   342

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

   343

static bool IsWateredTile(TileIndex tile)

   344

{

   345

	switch (GetTileType(tile)) {

   346

		case MP_WATER:

   347

			if (!IsCoast(tile)) return true;

   348

   349

			switch (GetTileSlope(tile, NULL)) {

   350

				case SLOPE_W:

   351

				case SLOPE_S:

   352

				case SLOPE_E:

   353

				case SLOPE_N:

   354

					return true;

   355

   356

				default:

   357

					return false;

   358

			}

   359

   360

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

   361

		default:         return false;

   362

	}

   363

}

   364

   365

// draw a canal styled water tile with dikes around

   366

void DrawCanalWater(TileIndex tile)

   367

{

   368

	uint wa;

   369

   370

	// determine the edges around with water.

   371

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

   372

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

   373

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

   374

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

   375

   376

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

   377

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

   378

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

   379

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

   380

   381

	// right corner

   382

	switch (wa & 0x03) {

   383

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

   384

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

   385

	}

   386

   387

	// bottom corner

   388

	switch (wa & 0x06) {

   389

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

   390

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

   391

	}

   392

   393

	// left corner

   394

	switch (wa & 0x0C) {

   395

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

   396

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

   397

	}

   398

   399

	// upper corner

   400

	switch (wa & 0x09) {

   401

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

   402

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

   403

	}

   404

}

   405

   406

struct LocksDrawTileStruct {

   407

	int8 delta_x, delta_y, delta_z;

   408

	byte width, height, depth;

   409

	SpriteID image;

   410

};

   411

   412

#include "table/water_land.h"

   413

   414

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

   415

	SpriteID palette, uint base

   416

)

   417

{

   418

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

   419

   420

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

   421

		SpriteID image = wdts->image + base;

   422

		SpriteID pal;

   423

   425

			SETBIT(image, PALETTE_MODIFIER_TRANSPARENT);

   426

			pal = PALETTE_TO_TRANSPARENT;

   427

		} else {

   428

			pal = palette;

   429

		}

   430

   431

		AddSortableSpriteToDraw(image, pal,

   432

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

   433

			wdts->width, wdts->height,

   434

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

   435

	}

   436

}

   437

   438

static void DrawTile_Water(TileInfo *ti)

   439

{

   440

	switch (GetWaterTileType(ti->tile)) {

   441

		case WATER_TILE_CLEAR:

   442

			DrawGroundSprite(SPR_FLAT_WATER_TILE, PAL_NONE);

   443

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

   444

			DrawBridgeMiddle(ti);

   445

			break;

   446

   447

		case WATER_TILE_COAST:

   448

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

   449

			if (_coast_base != 0) {

   450

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

   451

			} else {

   452

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

   453

			}

   454

			DrawBridgeMiddle(ti);

   455

			break;

   456

   457

		case WATER_TILE_LOCK: {

   458

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

   459

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

   460

		} break;

   461

   462

		case WATER_TILE_DEPOT:

   463

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

   464

			break;

   465

	}

   466

}

   467

   468

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

   469

{

   470

	const WaterDrawTileStruct *wdts = _shipdepot_display_seq[image];

   471

   472

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

   473

   474

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

   475

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

   476

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

   477

	}

   478

}

   479

   480

   481

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

   482

{

   483

	uint z;

   484

	Slope tileh = GetTileSlope(tile, &z);

   485

   486

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

   487

}

   488