1

/* $Id$ */

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     3

/** @file unmovable_cmd.cpp Handling of unmovable tiles. */

     4

     5

#include "stdafx.h"

     6

#include "openttd.h"

     7

#include "tile_cmd.h"

     8

#include "landscape.h"

     9

#include "command_func.h"

    10

#include "viewport_func.h"

    11

#include "company_func.h"

    12

#include "company_base.h"

    13

#include "gui.h"

    14

#include "town.h"

    15

#include "sprite.h"

    16

#include "bridge_map.h"

    17

#include "unmovable_map.h"

    18

#include "variables.h"

    19

#include "genworld.h"

    20

#include "bridge.h"

    21

#include "autoslope.h"

    22

#include "transparency.h"

    23

#include "functions.h"

    24

#include "window_func.h"

    25

#include "vehicle_func.h"

    26

#include "company_gui.h"

    27

#include "station_type.h"

    28

#include "economy_func.h"

    29

#include "cheat_func.h"

    30

#include "landscape_type.h"

    31

    32

#include "table/strings.h"

    33

#include "table/sprites.h"

    34

#include "table/unmovable_land.h"

    35

    36

/** Destroy a HQ.

    37

 * During normal gameplay you can only implicitely destroy a HQ when you are

    38

 * rebuilding it. Otherwise, only water can destroy it.

    39

 * @param cid Company requesting the destruction of his HQ

    40

 * @param flags docommand flags of calling function

    41

 * @return cost of the operation

    42

 */

    43

static CommandCost DestroyCompanyHQ(CompanyID cid, uint32 flags)

    44

{

    45

	Company *c = GetCompany(cid);

    46

    47

	if (flags & DC_EXEC) {

    48

		TileIndex t = c->location_of_HQ;

    49

    50

		DoClearSquare(t + TileDiffXY(0, 0));

    51

		DoClearSquare(t + TileDiffXY(0, 1));

    52

		DoClearSquare(t + TileDiffXY(1, 0));

    53

		DoClearSquare(t + TileDiffXY(1, 1));

    54

		c->location_of_HQ = 0; // reset HQ position

    55

		InvalidateWindow(WC_COMPANY, cid);

    56

	}

    57

    58

	/* cost of relocating company is 1% of company value */

    59

	return CommandCost(EXPENSES_PROPERTY, CalculateCompanyValue(c) / 100);

    60

}

    61

    62

void UpdateCompanyHQ(Company *c, uint score)

    63

{

    64

	byte val;

    65

	TileIndex tile = c->location_of_HQ;

    66

    67

	if (tile == 0) return;

    68

    69

	(val = 0, score < 170) ||

    70

	(val++, score < 350) ||

    71

	(val++, score < 520) ||

    72

	(val++, score < 720) ||

    73

	(val++, true);

    74

    75

	EnlargeCompanyHQ(tile, val);

    76

    77

	MarkTileDirtyByTile(tile + TileDiffXY(0, 0));

    78

	MarkTileDirtyByTile(tile + TileDiffXY(0, 1));

    79

	MarkTileDirtyByTile(tile + TileDiffXY(1, 0));

    80

	MarkTileDirtyByTile(tile + TileDiffXY(1, 1));

    81

}

    82

    83

extern CommandCost CheckFlatLandBelow(TileIndex tile, uint w, uint h, uint flags, uint invalid_dirs, StationID *station, bool check_clear = true);

    84

    85

/** Build or relocate the HQ. This depends if the HQ is already built or not

    86

 * @param tile tile where the HQ will be built or relocated to

    87

 * @param flags type of operation

    88

 * @param p1 unused

    89

 * @param p2 unused

    90

 */

    91

CommandCost CmdBuildCompanyHQ(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)

    92

{

    93

	Company *c = GetCompany(_current_company);

    94

	CommandCost cost(EXPENSES_PROPERTY);

    95

    96

	cost = CheckFlatLandBelow(tile, 2, 2, flags, 0, NULL);

    97

	if (CmdFailed(cost)) return cost;

    98

    99

	if (c->location_of_HQ != 0) { // Moving HQ

   100

		cost.AddCost(DestroyCompanyHQ(_current_company, flags));

   101

	}

   102

   103

	if (flags & DC_EXEC) {

   104

		int score = UpdateCompanyRatingAndValue(c, false);

   105

   106

		c->location_of_HQ = tile;

   107

   108

		MakeCompanyHQ(tile, _current_company);

   109

   110

		UpdateCompanyHQ(c, score);

   111

		InvalidateWindow(WC_COMPANY, c->index);

   112

	}

   113

   114

	return cost;

   115

}

   116

   117

/** Purchase a land area. Actually you only purchase one tile, so

   118

 * the name is a bit confusing ;p

   119

 * @param tile the tile the company is purchasing

   120

 * @param flags for this command type

   121

 * @param p1 unused

   122

 * @param p2 unused

   123

 * @return error of cost of operation

   124

 */

   125

CommandCost CmdPurchaseLandArea(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)

   126

{

   127

	CommandCost cost(EXPENSES_CONSTRUCTION);

   128

   129

	if (IsOwnedLandTile(tile) && IsTileOwner(tile, _current_company)) {

   130

		return_cmd_error(STR_5807_YOU_ALREADY_OWN_IT);

   131

	}

   132

   133

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

   134

	if (CmdFailed(cost)) return CMD_ERROR;

   135

   136

	if (flags & DC_EXEC) {

   137

		MakeOwnedLand(tile, _current_company);

   138

		MarkTileDirtyByTile(tile);

   139

	}

   140

   141

	return cost.AddCost(_price.clear_roughland * 10);

   142

}

   143

   144

/** Sell a land area. Actually you only sell one tile, so

   145

 * the name is a bit confusing ;p

   146

 * @param tile the tile the company is selling

   147

 * @param flags for this command type

   148

 * @param p1 unused

   149

 * @param p2 unused

   150

 * @return error or cost of operation

   151

 */

   152

CommandCost CmdSellLandArea(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)

   153

{

   154

	if (!IsOwnedLandTile(tile)) return CMD_ERROR;

   155

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

   156

   157

	if (!EnsureNoVehicleOnGround(tile)) return CMD_ERROR;

   158

   159

	if (flags & DC_EXEC) DoClearSquare(tile);

   160

   161

	return CommandCost(EXPENSES_CONSTRUCTION, - _price.clear_roughland * 2);

   162

}

   163

   164

static Foundation GetFoundation_Unmovable(TileIndex tile, Slope tileh);

   165

   166

static void DrawTile_Unmovable(TileInfo *ti)

   167

{

   168

   169

	switch (GetUnmovableType(ti->tile)) {

   170

		case UNMOVABLE_TRANSMITTER:

   171

		case UNMOVABLE_LIGHTHOUSE: {

   172

			const DrawTileSeqStruct *dtu = &_draw_tile_transmitterlighthouse_data[GetUnmovableType(ti->tile)];

   173

   174

			if (ti->tileh != SLOPE_FLAT) DrawFoundation(ti, FOUNDATION_LEVELED);

   175

			DrawClearLandTile(ti, 2);

   176

   177

			if (IsInvisibilitySet(TO_STRUCTURES)) break;

   178

   179

			AddSortableSpriteToDraw(

   180

				dtu->image.sprite, PAL_NONE, ti->x | dtu->delta_x, ti->y | dtu->delta_y,

   181

				dtu->size_x, dtu->size_y, dtu->size_z, ti->z,

   182

				IsTransparencySet(TO_STRUCTURES)

   183

			);

   184

			break;

   185

		}

   186

   187

		case UNMOVABLE_STATUE:

   188

			/* This should prevent statues from sinking into the ground when on a slope. */

   189

			if (ti->tileh != SLOPE_FLAT) DrawFoundation(ti, GetFoundation_Unmovable(ti->tile, ti->tileh));

   190

   191

			DrawGroundSprite(SPR_CONCRETE_GROUND, PAL_NONE);

   192

   193

			if (IsInvisibilitySet(TO_STRUCTURES)) break;

   194

   195

			AddSortableSpriteToDraw(SPR_STATUE_COMPANY, COMPANY_SPRITE_COLOR(GetTileOwner(ti->tile)), ti->x, ti->y, 16, 16, 25, ti->z, IsTransparencySet(TO_STRUCTURES));

   196

			break;

   197

   198

		case UNMOVABLE_OWNED_LAND:

   199

			DrawClearLandTile(ti, 0);

   200

   201

			AddSortableSpriteToDraw(

   202

				SPR_BOUGHT_LAND, COMPANY_SPRITE_COLOR(GetTileOwner(ti->tile)),

   203

				ti->x + TILE_SIZE / 2, ti->y + TILE_SIZE / 2, 1, 1, BB_HEIGHT_UNDER_BRIDGE, GetSlopeZ(ti->x + TILE_SIZE / 2, ti->y + TILE_SIZE / 2)

   204

			);

   205

			DrawBridgeMiddle(ti);

   206

			break;

   207

   208

		default: {

   209

			assert(IsCompanyHQ(ti->tile));

   210

			if (ti->tileh != SLOPE_FLAT) DrawFoundation(ti, FOUNDATION_LEVELED);

   211

   212

			SpriteID palette = COMPANY_SPRITE_COLOR(GetTileOwner(ti->tile));

   213

   214

			const DrawTileSprites *t = &_unmovable_display_datas[GetCompanyHQSection(ti->tile)];

   215

			DrawGroundSprite(t->ground.sprite, palette);

   216

   217

			if (IsInvisibilitySet(TO_STRUCTURES)) break;

   218

   219

			const DrawTileSeqStruct *dtss;

   220

			foreach_draw_tile_seq(dtss, t->seq) {

   221

				AddSortableSpriteToDraw(

   222

					dtss->image.sprite, palette,

   223

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

   224

					dtss->size_x, dtss->size_y,

   225

					dtss->size_z, ti->z + dtss->delta_z,

   226

					IsTransparencySet(TO_STRUCTURES)

   227

				);

   228

			}

   229

			break;

   230

		}

   231

	}

   232

}

   233

   234

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

   235

{

   236

	if (IsOwnedLand(tile)) {

   237

		uint z;

   238

		Slope tileh = GetTileSlope(tile, &z);

   239

   240

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

   241

	} else {

   242

		return GetTileMaxZ(tile);

   243

	}

   244

}

   245

   246

static Foundation GetFoundation_Unmovable(TileIndex tile, Slope tileh)

   247

{

   248

	return IsOwnedLand(tile) ? FOUNDATION_NONE : FlatteningFoundation(tileh);

   249

}

   250

   251

static CommandCost ClearTile_Unmovable(TileIndex tile, byte flags)

   252

{

   253

	if (IsCompanyHQ(tile)) {

   254

		if (_current_company == OWNER_WATER) {

   255

			return DestroyCompanyHQ(GetTileOwner(tile), DC_EXEC);

   256

		} else {

   257

			return_cmd_error(STR_5804_COMPANY_HEADQUARTERS_IN);

   258

		}

   259

	}

   260

   261

	if (IsOwnedLand(tile)) {

   262

		return DoCommand(tile, 0, 0, flags, CMD_SELL_LAND_AREA);

   263

	}

   264

   265

	/* checks if you're allowed to remove unmovable things */

   266

	if (_game_mode != GM_EDITOR && _current_company != OWNER_WATER && ((flags & DC_AUTO || !_cheats.magic_bulldozer.value)) )

   267

		return_cmd_error(STR_5800_OBJECT_IN_THE_WAY);

   268

   269

	if (IsStatue(tile)) {

   270

		if (flags & DC_AUTO) return_cmd_error(STR_5800_OBJECT_IN_THE_WAY);

   271

   272

		TownID town = GetStatueTownID(tile);

   273

		ClrBit(GetTown(town)->statues, GetTileOwner(tile));

   274

		InvalidateWindow(WC_TOWN_AUTHORITY, town);

   275

	}

   276

   277

	if (flags & DC_EXEC) {

   278

		DoClearSquare(tile);

   279

	}

   280

   281

	return CommandCost();

   282

}

   283

   284

static void GetAcceptedCargo_Unmovable(TileIndex tile, AcceptedCargo ac)

   285

{

   286

	if (!IsCompanyHQ(tile)) return;

   287

   288

	/* HQ accepts passenger and mail; but we have to divide the values

   289

	 * between 4 tiles it occupies! */

   290

   291

	/* HQ level (depends on company performance) in the range 1..5. */

   292

	uint level = GetCompanyHQSize(tile) + 1;

   293

   294

	/* Top town building generates 10, so to make HQ interesting, the top

   295

	 * type makes 20. */

   296

	ac[CT_PASSENGERS] = max(1U, level);

   297

   298

	/* Top town building generates 4, HQ can make up to 8. The

   299

	 * proportion passengers:mail is different because such a huge

   300

	 * commercial building generates unusually high amount of mail

   301

	 * correspondence per physical visitor. */

   302

	ac[CT_MAIL] = max(1U, level / 2);

   303

}

   304

   305

   306

static void GetTileDesc_Unmovable(TileIndex tile, TileDesc *td)

   307

{

   308

	switch (GetUnmovableType(tile)) {

   309

		case UNMOVABLE_TRANSMITTER: td->str = STR_5801_TRANSMITTER; break;

   310

		case UNMOVABLE_LIGHTHOUSE:  td->str = STR_5802_LIGHTHOUSE; break;

   311

		case UNMOVABLE_STATUE:      td->str = STR_2016_STATUE; break;

   312

		case UNMOVABLE_OWNED_LAND:  td->str = STR_5805_COMPANY_OWNED_LAND; break;

   313

		default:                    td->str = STR_5803_COMPANY_HEADQUARTERS; break;

   314

	}

   315

	td->owner[0] = GetTileOwner(tile);

   316

}

   317

   318

static void AnimateTile_Unmovable(TileIndex tile)

   319

{

   320

	/* not used */

   321

}

   322

   323

static void TileLoop_Unmovable(TileIndex tile)

   324

{

   325

	if (!IsCompanyHQ(tile)) return;

   326

   327

	/* HQ accepts passenger and mail; but we have to divide the values

   328

	 * between 4 tiles it occupies! */

   329

   330

	/* HQ level (depends on company performance) in the range 1..5. */

   331

	uint level = GetCompanyHQSize(tile) + 1;

   332

	assert(level < 6);

   333

   334

	uint r = Random();

   335

	/* Top town buildings generate 250, so the top HQ type makes 256. */

   336

	if (GB(r, 0, 8) < (256 / 4 / (6 - level))) {

   337

		uint amt = GB(r, 0, 8) / 8 / 4 + 1;

   338

		if (_economy.fluct <= 0) amt = (amt + 1) >> 1;

   339

		MoveGoodsToStation(tile, 2, 2, CT_PASSENGERS, amt);

   340

	}

   341

   342

	/* Top town building generates 90, HQ can make up to 196. The

   343

	 * proportion passengers:mail is about the same as in the acceptance

   344

	 * equations. */

   345

	if (GB(r, 8, 8) < (196 / 4 / (6 - level))) {

   346

		uint amt = GB(r, 8, 8) / 8 / 4 + 1;

   347

		if (_economy.fluct <= 0) amt = (amt + 1) >> 1;

   348

		MoveGoodsToStation(tile, 2, 2, CT_MAIL, amt);

   349

	}

   350

}

   351

   352

   353

static TrackStatus GetTileTrackStatus_Unmovable(TileIndex tile, TransportType mode, uint sub_mode, DiagDirection side)

   354

{

   355

	return 0;

   356

}

   357

   358

static void ClickTile_Unmovable(TileIndex tile)

   359

{

   360

	if (IsCompanyHQ(tile)) ShowCompany(GetTileOwner(tile));

   361

}

   362

   363

   364

/* checks, if a radio tower is within a 9x9 tile square around tile */

   365

static bool IsRadioTowerNearby(TileIndex tile)

   366

{

   367

	TileIndex tile_s = tile - TileDiffXY(4, 4);

   368

   369

	BEGIN_TILE_LOOP(tile, 9, 9, tile_s)

   370

		if (IsTransmitterTile(tile)) return true;

   371

	END_TILE_LOOP(tile, 9, 9, tile_s)

   372

   373

	return false;

   374

}

   375

   376

void GenerateUnmovables()

   377

{

   378

	if (_settings_game.game_creation.landscape == LT_TOYLAND) return;

   379

   380

	/* add radio tower */

   381

	int radiotowser_to_build = ScaleByMapSize(15); // maximum number of radio towers on the map

   382

	int lighthouses_to_build = _settings_game.game_creation.landscape == LT_TROPIC ? 0 : ScaleByMapSize1D((Random() & 3) + 7);

   383

	SetGeneratingWorldProgress(GWP_UNMOVABLE, radiotowser_to_build + lighthouses_to_build);

   384

   385

	for (uint i = ScaleByMapSize(1000); i != 0; i--) {

   386

		TileIndex tile = RandomTile();

   387

   388

		uint h;

   389

		if (IsTileType(tile, MP_CLEAR) && GetTileSlope(tile, &h) == SLOPE_FLAT && h >= TILE_HEIGHT * 4 && !IsBridgeAbove(tile)) {

   390

			if (IsRadioTowerNearby(tile)) continue;

   391

   392

			MakeTransmitter(tile);

   393

			IncreaseGeneratingWorldProgress(GWP_UNMOVABLE);

   394

			if (--radiotowser_to_build == 0) break;

   395

		}

   396

	}

   397

   398

	if (_settings_game.game_creation.landscape == LT_TROPIC) return;

   399

   400

	/* add lighthouses */

   401

	uint maxx = MapMaxX();

   402

	uint maxy = MapMaxY();

   403

	for (int loop_count = 0; loop_count < 1000 && lighthouses_to_build != 0; loop_count++) {

   404

		uint r = Random();

   405

   406

		/* Scatter the lighthouses more evenly around the perimeter */

   407

		int perimeter = (GB(r, 16, 16) % (2 * (maxx + maxy))) - maxy;

   408

		DiagDirection dir;

   409

		for (dir = DIAGDIR_NE; perimeter > 0; dir++) {

   410

			perimeter -= (DiagDirToAxis(dir) == AXIS_X) ? maxx : maxy;

   411

		}

   412

   413

		TileIndex tile;

   414

		switch (dir) {

   415

			default:

   416

			case DIAGDIR_NE: tile = TileXY(maxx,     r % maxy); break;

   417

			case DIAGDIR_SE: tile = TileXY(r % maxx, 0);        break;

   418

			case DIAGDIR_SW: tile = TileXY(0,        r % maxy); break;

   419

			case DIAGDIR_NW: tile = TileXY(r % maxx, maxy);     break;

   420

		}

   421

   422

		for (int j = 0; j < 20; j++) {

   423

			uint h;

   424

			if (IsTileType(tile, MP_CLEAR) && GetTileSlope(tile, &h) == SLOPE_FLAT && h <= TILE_HEIGHT * 2 && !IsBridgeAbove(tile)) {

   425

				MakeLighthouse(tile);

   426

				IncreaseGeneratingWorldProgress(GWP_UNMOVABLE);

   427

				lighthouses_to_build--;

   428

				assert(tile == TILE_MASK(tile));

   429

				break;

   430

			}

   431

			tile = TILE_MASK(tile + TileOffsByDiagDir(dir));

   432

		}

   433

	}

   434

}

   435

   436

static void ChangeTileOwner_Unmovable(TileIndex tile, Owner old_owner, Owner new_owner)

   437

{

   438

	if (!IsTileOwner(tile, old_owner)) return;

   439

   440

	if (IsOwnedLand(tile) && new_owner != INVALID_OWNER) {

   441

		SetTileOwner(tile, new_owner);

   442

	} else if (IsStatueTile(tile)) {

   443

		TownID town = GetStatueTownID(tile);

   444

		Town *t = GetTown(town);

   445

		ClrBit(t->statues, old_owner);

   446

		if (new_owner != INVALID_OWNER && !HasBit(t->statues, new_owner)) {

   447

			/* Transfer ownership to the new company */

   448

			SetBit(t->statues, new_owner);

   449

			SetTileOwner(tile, new_owner);

   450

		} else {

   451

			DoClearSquare(tile);

   452

		}

   453

   454

		InvalidateWindow(WC_TOWN_AUTHORITY, town);

   455

	} else {

   456

		DoClearSquare(tile);

   457

	}

   458

}

   459

   460

static CommandCost TerraformTile_Unmovable(TileIndex tile, uint32 flags, uint z_new, Slope tileh_new)

   461

{

   462

	/* Owned land remains unsold */

   463

	if (IsOwnedLand(tile) && CheckTileOwnership(tile)) return CommandCost();

   464

   465

	if (AutoslopeEnabled() && (IsStatue(tile) || IsCompanyHQ(tile))) {

   466

		if (!IsSteepSlope(tileh_new) && (z_new + GetSlopeMaxZ(tileh_new) == GetTileMaxZ(tile))) return CommandCost(EXPENSES_CONSTRUCTION, _price.terraform);

   467

	}

   468

   469

	return DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);

   470

}

   471

   472

extern const TileTypeProcs _tile_type_unmovable_procs = {

   473

	DrawTile_Unmovable,             /* draw_tile_proc */

   474

	GetSlopeZ_Unmovable,            /* get_slope_z_proc */

   475

	ClearTile_Unmovable,            /* clear_tile_proc */

   476

	GetAcceptedCargo_Unmovable,     /* get_accepted_cargo_proc */

   477

	GetTileDesc_Unmovable,          /* get_tile_desc_proc */

   478

	GetTileTrackStatus_Unmovable,   /* get_tile_track_status_proc */

   479

	ClickTile_Unmovable,            /* click_tile_proc */

   480

	AnimateTile_Unmovable,          /* animate_tile_proc */

   481

	TileLoop_Unmovable,             /* tile_loop_clear */

   482

	ChangeTileOwner_Unmovable,      /* change_tile_owner_clear */

   483

	NULL,                           /* get_produced_cargo_proc */

   484

	NULL,                           /* vehicle_enter_tile_proc */

   485

	GetFoundation_Unmovable,        /* get_foundation_proc */