1

#include "stdafx.h"

     2

#include "ttd.h"

     3

     4

#include "window.h"

     5

#include "gui.h"

     6

#include "viewport.h"

     7

#include "gfx.h"

     8

#include "sound.h"

     9

#include "command.h"

    10

#include "vehicle.h"

    11

#include "station.h"

    12

    13

static uint _cur_railtype;

    14

static bool _remove_button_clicked;

    15

static byte _build_depot_direction;

    16

static byte _waypoint_count=1;

    17

static byte _cur_waypoint_type;

    18

    19

struct {

    20

	byte orientation;

    21

	byte numtracks;

    22

	byte platlength;

    23

	bool dragdrop;

    24

} _railstation;

    25

    26

    27

static void HandleStationPlacement(uint start, uint end);

    28

static void ShowBuildTrainDepotPicker();

    29

static void ShowBuildWaypointPicker();

    30

static void ShowStationBuilder();

    31

    32

typedef void OnButtonClick(Window *w);

    33

    34

static void CcPlaySound1E(bool success, uint tile, uint32 p1, uint32 p2)

    35

{

    36

	if (success) SndPlayTileFx(0x1E, tile);

    37

}

    38

    39

static void GenericPlaceRail(uint tile, int cmd)

    40

{

    41

	DoCommandP(tile, _cur_railtype, cmd, CcPlaySound1E,

    42

		_remove_button_clicked ?

    43

		CMD_REMOVE_SINGLE_RAIL | CMD_MSG(STR_1012_CAN_T_REMOVE_RAILROAD_TRACK) | CMD_AUTO | CMD_NO_WATER :

    44

		CMD_BUILD_SINGLE_RAIL | CMD_MSG(STR_1011_CAN_T_BUILD_RAILROAD_TRACK) | CMD_AUTO | CMD_NO_WATER

    45

		);

    46

}

    47

    48

static void PlaceRail_N(uint tile)

    49

{

    50

	int cmd = _tile_fract_coords.x > _tile_fract_coords.y ? 4 : 5;

    51

	GenericPlaceRail(tile, cmd);

    52

}

    53

    54

static void PlaceRail_NE(uint tile)

    55

{

    56

	VpStartPlaceSizing(tile, VPM_FIX_Y);

    57

}

    58

    59

static void PlaceRail_E(uint tile)

    60

{

    61

	int cmd = _tile_fract_coords.x + _tile_fract_coords.y <= 15 ? 2 : 3;

    62

	GenericPlaceRail(tile, cmd);

    63

}

    64

    65

static void PlaceRail_NW(uint tile)

    66

{

    67

	VpStartPlaceSizing(tile, VPM_FIX_X);

    68

}

    69

    70

static void PlaceRail_AutoRail(uint tile)

    71

{

    72

	VpStartPlaceSizing(tile, VPM_RAILDIRS);

    73

}

    74

    75

static int16 _place_depot_offs_xy[4] = { -1,	0x100,	1,	-0x100};

    76

    77

static void PlaceExtraDepotRail(uint tile, uint16 extra)

    78

{

    79

	byte b = _map5[tile];

    80

    81

	if (b & 0xC0 || !(b & (extra >> 8)))

    82

		return;

    83

    84

	DoCommandP(tile, _cur_railtype, extra & 0xFF, NULL, CMD_BUILD_SINGLE_RAIL | CMD_AUTO | CMD_NO_WATER);

    85

}

    86

    87

static const uint16 _place_depot_extra[12] = {

    88

	0x604,		0x2102,		0x1202,		0x505,

    89

	0x2400,		0x2801,		0x1800,		0x1401,

    90

	0x2203,		0x904,		0x0A05,		0x1103,

    91

};

    92

    93

    94

static void CcDepot(bool success, uint tile, uint32 p1, uint32 p2)

    95

{

    96

	if (success) {

    97

		int dir = p2;

    98

    99

		SndPlayTileFx(0x1E, tile);

   100

		ResetObjectToPlace();

   101

   102

		tile += _place_depot_offs_xy[dir];

   103

   104

		if (IS_TILETYPE(tile, MP_RAILWAY)) {

   105

			PlaceExtraDepotRail(tile, _place_depot_extra[dir]);

   106

			PlaceExtraDepotRail(tile, _place_depot_extra[dir + 4]);

   107

			PlaceExtraDepotRail(tile, _place_depot_extra[dir + 8]);

   108

		}

   109

	}

   110

}

   111

   112

static void PlaceRail_Depot(uint tile)

   113

{

   114

	DoCommandP(tile, _cur_railtype, _build_depot_direction, CcDepot,

   115

		CMD_BUILD_TRAIN_DEPOT | CMD_AUTO | CMD_NO_WATER | CMD_MSG(STR_100E_CAN_T_BUILD_TRAIN_DEPOT));

   116

}

   117

   118

static void PlaceRail_Waypoint(uint tile)

   119

{

   120

	if (!_remove_button_clicked) {

   121

		DoCommandP(tile, _waypoint_count > 0 ? (0x100 + _cur_waypoint_type) : 0, 0, CcPlaySound1E, CMD_BUILD_TRAIN_WAYPOINT | CMD_MSG(STR_CANT_BUILD_TRAIN_WAYPOINT));

   122

	} else {

   123

		DoCommandP(tile, 0, 0, CcPlaySound1E, CMD_REMOVE_TRAIN_WAYPOINT | CMD_MSG(STR_CANT_REMOVE_TRAIN_WAYPOINT));

   124

	}

   125

}

   126

   127

static void CcStation(bool success, uint tile, uint32 p1, uint32 p2)

   128

{

   129

	if (success) {

   130

		SndPlayTileFx(0x1E, tile);

   131

		ResetObjectToPlace();

   132

	}

   133

}

   134

   135

static void PlaceRail_Station(uint tile)

   136

{

   137

	if(_remove_button_clicked)

   138

		DoCommandP(tile, 0, 0, CcPlaySound1E, CMD_REMOVE_FROM_RAILROAD_STATION | CMD_MSG(STR_CANT_REMOVE_PART_OF_STATION));

   139

	else if (_railstation.dragdrop) {

   140

		VpStartPlaceSizing(tile, VPM_X_AND_Y_LIMITED);

   141

		VpSetPlaceSizingLimit(_patches.station_spread);

   142

	} else {

   146

				CMD_BUILD_RAILROAD_STATION | CMD_NO_WATER | CMD_AUTO | CMD_MSG(STR_100F_CAN_T_BUILD_RAILROAD_STATION));

   147

	}

   148

}

   149

   150

static void GenericPlaceSignals(uint tile)

   151

{

   152

	uint trackstat;

   153

	int i;

   154

   155

	trackstat = (byte)GetTileTrackStatus(tile, TRANSPORT_RAIL);

   156

   157

	if ((trackstat & 0x30) == 0x30) {

   158

		trackstat = (_tile_fract_coords.x <= _tile_fract_coords.y) ? 0x20 : 0x10;

   159

	}

   160

   161

	if ((trackstat & 0x0C) == 0x0C) {

   162

		trackstat = (_tile_fract_coords.x + _tile_fract_coords.y <= 15) ? 4 : 8;

   163

	}

   164

   165

	// Lookup the bit index

   166

	i = 0;

   167

	if (trackstat != 0) {	while (!(trackstat & 1)) { i++; trackstat >>= 1; }}

   168

   169

	if (!_remove_button_clicked) {

   170

		DoCommandP(tile, i + (_ctrl_pressed ? 8 : 0), 0, CcPlaySound1E,

   171

			CMD_BUILD_SIGNALS | CMD_AUTO | CMD_MSG(STR_1010_CAN_T_BUILD_SIGNALS_HERE));

   172

	} else {

   173

		DoCommandP(tile, i, 0, CcPlaySound1E,

   174

			CMD_REMOVE_SIGNALS | CMD_AUTO | CMD_MSG(STR_1013_CAN_T_REMOVE_SIGNALS_FROM));

   175

	}

   176

}

   177

   178

static void PlaceRail_Bridge(uint tile)

   179

{

   180

	VpStartPlaceSizing(tile, VPM_X_OR_Y);

   181

}

   182

   183

static void CcBuildTunnel(bool success, uint tile, uint32 p1, uint32 p2)

   184

{

   185

	if (success) {

   186

		SndPlayTileFx(0x1E, tile);

   187

		ResetObjectToPlace();

   188

	} else {

   189

		SetRedErrorSquare(_build_tunnel_endtile);

   190

	}

   191

}

   192

   193

static void PlaceRail_Tunnel(uint tile)

   194

{

   195

	DoCommandP(tile, _cur_railtype, 0, CcBuildTunnel,

   196

		CMD_BUILD_TUNNEL | CMD_AUTO | CMD_MSG(STR_5016_CAN_T_BUILD_TUNNEL_HERE));

   197

}

   198

   199

void PlaceProc_BuyLand(uint tile)

   200

{

   201

	DoCommandP(tile, 0, 0, CcPlaySound1E, CMD_PURCHASE_LAND_AREA | CMD_AUTO | CMD_NO_WATER | CMD_MSG(STR_5806_CAN_T_PURCHASE_THIS_LAND));

   202

}

   203

   204

static void PlaceRail_ConvertRail(uint tile)

   205

{

   206

	VpStartPlaceSizing(tile, VPM_X_AND_Y | (1<<4));

   207

}

   208

   209

static void PlaceRail_AutoSignals(uint tile)

   210

{

   211

	VpStartPlaceSizing(tile, VPM_SIGNALDIRS);

   212

}

   213

   214

static void BuildRailClick_AutoRail(Window *w)

   215

{

   216

	HandlePlacePushButton(w, 3, _cur_railtype + SPR_OPENTTD_BASE + 4, 1, PlaceRail_AutoRail);

   217

}

   218

   219

static void BuildRailClick_N(Window *w)

   220

{

   221

	HandlePlacePushButton(w, 4, _cur_railtype*4 + 0x4EF, 1, PlaceRail_N);

   222

}

   223

   224

static void BuildRailClick_NE(Window *w)

   225

{

   226

	HandlePlacePushButton(w, 5, _cur_railtype*4 + 0x4F0, 1, PlaceRail_NE);

   227

}

   228

   229

static void BuildRailClick_E(Window *w)

   230

{

   231

	HandlePlacePushButton(w, 6, _cur_railtype*4 + 0x4F1, 1, PlaceRail_E);

   232

}

   233

   234

static void BuildRailClick_NW(Window *w)

   235

{

   236

	HandlePlacePushButton(w, 7, _cur_railtype*4 + 0x4F2, 1, PlaceRail_NW);

   237

}

   238

   239

static void BuildRailClick_Demolish(Window *w)

   240

{

   241

	HandlePlacePushButton(w, 8, ANIMCURSOR_DEMOLISH, 1, PlaceProc_DemolishArea);

   242

}

   243

   244

static void BuildRailClick_Lower(Window *w)

   245

{

   246

	HandlePlacePushButton(w, 9, ANIMCURSOR_LOWERLAND, 2, PlaceProc_LowerLand);

   247

}

   248

   249

static void BuildRailClick_Raise(Window *w)

   250

{

   251

	HandlePlacePushButton(w, 10, ANIMCURSOR_RAISELAND, 2, PlaceProc_RaiseLand);

   252

}

   253

   254

static const SpriteID _depot_cursors[] = {

   255

	0x510,

   256

	SPR_OPENTTD_BASE + 14,

   257

	SPR_OPENTTD_BASE + 15,

   258

};

   259

   260

static void BuildRailClick_Depot(Window *w)

   261

{

   262

	if (HandlePlacePushButton(w, 11, _depot_cursors[_cur_railtype], 1, PlaceRail_Depot)) ShowBuildTrainDepotPicker();

   263

}

   264

   265

static void BuildRailClick_Station(Window *w)

   266

{

   267

	if (HandlePlacePushButton(w, 12, 0x514, 1, PlaceRail_Station)) ShowStationBuilder();

   268

}

   269

   270

static void BuildRailClick_AutoSignals(Window *w)

   271

{

   272

	HandlePlacePushButton(w, 13, ANIMCURSOR_BUILDSIGNALS , 1, PlaceRail_AutoSignals);

   273

}

   274

   275

static void BuildRailClick_Bridge(Window *w)

   276

{

   277

	HandlePlacePushButton(w, 14, 0xA21, 1, PlaceRail_Bridge);

   278

}

   279

   280

static void BuildRailClick_Tunnel(Window *w)

   281

{

   282

	HandlePlacePushButton(w, 15, 0x982 + _cur_railtype, 3, PlaceRail_Tunnel);

   283

}

   284

   285

static void BuildRailClick_Remove(Window *w)

   286

{

   287

	if (w->disabled_state & (1<<16))

   288

		return;

   289

	SetWindowDirty(w);

   290

	SndPlayFx(0x13);

   291

   292

	_thd.make_square_red = !!((w->click_state ^= (1 << 16)) & (1<<16));

   293

	_remove_button_clicked = (w->click_state & (1 << 16)) != 0;

   294

   295

	// handle station builder

   296

	if( w->click_state & (1 << 12) )

   297

	{

   298

		if(_remove_button_clicked)

   299

			SetTileSelectSize(1, 1);

   300

		else

   301

			BringWindowToFrontById(WC_BUILD_STATION, 0);

   302

	}

   303

}

   304

   305

static void BuildRailClick_Sign(Window *w)

   306

{

   307

	HandlePlacePushButton(w, 17, 0x12B8, 1, PlaceProc_BuyLand);

   308

}

   309

   310

static void BuildRailClick_Waypoint(Window *w)

   311

{

   312

	_waypoint_count = GetCustomStationsCount(STAT_CLASS_WAYP);

   313

	if (HandlePlacePushButton(w, 18, SPR_OPENTTD_BASE + 7, 1, PlaceRail_Waypoint)

   314

	    && _waypoint_count > 1)

   315

		ShowBuildWaypointPicker();

   316

}

   317

   318

static void BuildRailClick_Convert(Window *w)

   319

{

   320

	HandlePlacePushButton(w, 19, (SPR_OPENTTD_BASE + 26) + _cur_railtype * 2, 1, PlaceRail_ConvertRail);

   321

}

   322

   323

   324

static void DoRailroadTrack(int mode)

   325

{

   326

	DoCommandP(TILE_FROM_XY(_thd.selstart.x, _thd.selstart.y), PACK_POINT(_thd.selend.x, _thd.selend.y), (mode << 4) | _cur_railtype, NULL,

   327

		_remove_button_clicked ?

   328

		CMD_REMOVE_RAILROAD_TRACK | CMD_AUTO | CMD_NO_WATER | CMD_MSG(STR_1012_CAN_T_REMOVE_RAILROAD_TRACK) :

   329

		CMD_BUILD_RAILROAD_TRACK | CMD_AUTO | CMD_NO_WATER | CMD_MSG(STR_1011_CAN_T_BUILD_RAILROAD_TRACK)

   330

	);

   331

}

   332

   333

typedef struct {

   334

	byte bit, a,b, mouse;

   335

} BestFitStruct;

   336

   337

#define M(d,m) (d << 6) | (m)

   338

static const BestFitStruct _bestfit[] = {

   339

	// both edges have rail

   340

	{2, M(0, 1+8), M(3, 2+8), 0}, // upper track

   341

	{3, M(2, 1+4), M(1, 2+4), 0}, // lower track

   342

   343

	{4, M(2, 1+32), M(3, 2+32), 1<<2}, // left track

   344

	{5, M(0, 1+16), M(1, 2+16), 1<<3}, // right track

   345

   346

	{0, M(0,1+8+16), M(2,1+4+32), 0}, // diag1 track

   347

	{1, M(3,2+8+32), M(1,2+4+16), 0}, // diag2 track

   348

   349

	// one edge with rail

   350

	{0, M(0,1), 0, 0}, // diag1 track

   351

	{0, M(2,1), 0, 0}, // diag1 track

   352

   353

	{1, M(1,2), 0, 0}, // diag2 track

   354

	{1, M(3,2), 0, 0}, // diag2 track

   355

   356

	{2, M(0,8), 0, 1<<0}, // upper track

   357

	{2, M(3,8), 0, 1<<0}, // upper track

   358

   359

	{3, M(1,4), 0, 1<<1}, // lower track

   360

	{3, M(2,4), 0, 1<<1}, // lower track

   361

   362

	{4, M(2,32), 0, 1<<2}, // left track

   363

	{4, M(3,32), 0, 1<<2}, // left track

   364

   365

	{5, M(0,16), 0, 1<<3}, // right track

   366

	{5, M(1,16), 0, 1<<3}, // right track

   367

   368

	{0xff, 0, 0, 0},

   369

};

   370

#undef M

   371

   372

static int GetBestArea(int x, int y)

   373

{

   374

	int r = 0;

   375

	if (x + y > 0x10) r += 2;

   376

	else if (x + y == 0x10) return -1;

   377

	if (y - x > 0) r += 1;

   378

	else if (y - x == 0) return -1;

   379

	return r;

   380

}

   381

   382

static int GetBestFit1x1(int x, int y)

   383

{

   384

	byte m[5];

   385

	const BestFitStruct *bfs;

   386

	byte mouse;

   387

	uint tile;

   388

	int best;

   389

	int i;

   390

   391

	// determine the mouse regions

   392

	mouse = ((x & 0xF) + (y & 0xF) < 0x10 ? 1 << 0 : 1 << 1) +

   393

					((x & 0xF) > (y & 0xF) ? 1 << 2 : 1 << 3);

   394

   395

	// get the rail in each direction

   396

	tile = TILE_FROM_XY(x,y);

   397

	for(i=0; i!=5; i++) {

   398

		static TileIndexDiff _tile_inc[5] = {

   399

			TILE_XY(-1, 0),

   400

			TILE_XY(0, 1) - TILE_XY(-1, 0),

   401

			TILE_XY(1, 0) - TILE_XY(0, 1),

   402

			TILE_XY(0, -1) - TILE_XY(1, 0),

   403

			TILE_XY(0, 0) - TILE_XY(0, -1),

   404

		};

   405

		tile += _tile_inc[i];

   406

		m[i] = 0;

   407

		if (IS_TILETYPE(tile, MP_RAILWAY) && _map5[tile] < 0x80)

   408

			m[i] = _map5[tile]&0x3F;

   409

   410

		// handle tracks under bridge

   411

		if(IS_TILETYPE(tile, MP_TUNNELBRIDGE) && (_map5[tile]&0xF8)==0xE0)

   412

			m[i] = (byte) !(_map5[tile]&0x01) + 1;

   413

   414

		if (_remove_button_clicked) m[i] ^= 0x3F;

   415

	}

   416

   417

	// check "mouse gesture"?

   418

	{

   419

		int a1,a2;

   420

		if ((a1 = GetBestArea(x & 0xF, y & 0xF)) != -1 && (a2 = GetBestArea(_tile_fract_coords.x, _tile_fract_coords.y)) != -1 && a1 != a2) {

   421

			static const byte _get_dir_by_areas[4][4] = {

   422

				{0,2,4,1},

   423

				{2,0,0,5},

   424

				{4,0,0,3},

   425

				{1,5,3,0},

   426

			};

   427

			i = _get_dir_by_areas[a2][a1];

   428

			if (!HASBIT(m[4], i))

   429

				return i;

   430

		}

   431

	}

   432

	// check each bestfit struct

   433

	for(bfs = _bestfit, best=-1; bfs->bit != 0xFF; bfs++) {

   434

		if ((bfs->a & m[bfs->a >> 6]) && (!bfs->b || bfs->b & m[bfs->b >> 6]) && !HASBIT(m[4], bfs->bit)) {

   435

			if ( (byte)(~mouse & bfs->mouse) == 0)

   436

				return bfs->bit;

   437

			if (best != -1)

   438

				return best;

   439

			best = bfs->bit;

   440

		}

   441

	}

   442

   443

	return best;

   444

}

   445

   446

static void SwapSelection()

   447

{

   448

	TileHighlightData *thd = &_thd;

   449

	Point pt = thd->selstart;

   450

	thd->selstart.x = thd->selend.x & ~0xF;

   451

	thd->selstart.y = thd->selend.y & ~0xF;

   452

	thd->selend = pt;

   453

}

   454

   455

static bool Check2x1AutoRail(int mode)

   456

{

   457

	TileHighlightData *thd = &_thd;

   458

	int fxpy = _tile_fract_coords.x + _tile_fract_coords.y;

   459

	int sxpy = (thd->selend.x & 0xF) + (thd->selend.y & 0xF);

   460

	int fxmy = _tile_fract_coords.x - _tile_fract_coords.y;

   461

	int sxmy = (thd->selend.x & 0xF) - (thd->selend.y & 0xF);

   462

   463

	switch(mode) {

   464

	case 0:

   465

		if (fxpy >= 20 && sxpy <= 12) { SwapSelection(); DoRailroadTrack(0); return true; }

   466

		if (fxmy < -3 && sxmy > 3) { DoRailroadTrack(0); return true; }

   467

		break;

   468

   469

	case 1:

   470

		if (fxmy > 3 && sxmy < -3) { SwapSelection(); DoRailroadTrack(0); return true; }

   471

		if (fxpy <= 12 && sxpy >= 20) { DoRailroadTrack(0); return true; }

   472

		break;

   473

   474

	case 2:

   475

		if (fxmy > 3 && sxmy < -3) { DoRailroadTrack(3); return true; }

   476

		if (fxpy >= 20 && sxpy <= 12) { SwapSelection(); DoRailroadTrack(0); return true; }

   477

		break;

   478

   479

	case 3:

   480

		if (fxmy < -3 && sxmy > 3) { SwapSelection(); DoRailroadTrack(3); return true; }

   481

		if (fxpy <= 12 && sxpy >= 20) { DoRailroadTrack(0); return true; }

   482

		break;

   483

	}

   484

   485

	return false;

   486

}

   487

   488

   489

static void HandleAutodirPlacement()

   490

{

   491

	TileHighlightData *thd = &_thd;

   492

	int bit;

   493

   494

	if (thd->drawstyle == HT_RECT) {

   495

		int dx = thd->selstart.x - (thd->selend.x&~0xF);

   496

		int dy = thd->selstart.y - (thd->selend.y&~0xF);

   497

   498

		if (dx == 0 && dy == 0 ) {

   499

			// 1x1 tile

   500

			bit = GetBestFit1x1(thd->selend.x, thd->selend.y);

   501

			if (bit == -1) return;

   502

			GenericPlaceRail(TILE_FROM_XY(thd->selend.x, thd->selend.y), bit);

   503

		} else if (dx == 0) {

   504

			if (dy == -16) {

   505

				if (Check2x1AutoRail(0)) return;

   506

			} else if (dy == 16) {

   507

				if (Check2x1AutoRail(1)) return;

   508

			}

   509

			// same x coordinate

   510

			DoRailroadTrack(VPM_FIX_X);

   511

		} else {

   512

			// same y coordinate

   513

			// check it's it -16 or 16, then we must check if it should be normal tiles or special tiles.

   514

			if (dx == -16) {

   515

				if (Check2x1AutoRail(2)) return;

   516

			} else if (dx == 16) {

   517

				if (Check2x1AutoRail(3)) return;

   518

			}

   519

			DoRailroadTrack(VPM_FIX_Y);

   520

		}

   521

	} else {

   522

		DoRailroadTrack(thd->drawstyle & 1 ? 0 : 3);