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 "command.h"

     9

#include "vehicle.h"

    10

    11

static uint _cur_railtype;

    12

static bool _remove_button_clicked;

    13

static byte _build_depot_direction;

    14

    15

struct {

    16

	byte orientation;

    17

	byte numtracks;

    18

	byte platlength;

    19

	bool dragdrop;

    20

} _railstation;

    21

    22

    23

static void HandleStationPlacement(uint start, uint end);

    24

static void ShowBuildTrainDepotPicker();

    25

static void ShowStationBuilder();

    26

    27

typedef void OnButtonClick(Window *w);

    28

    29

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

    30

{

    31

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

    32

}

    33

    34

static void GenericPlaceRail(uint tile, int cmd)

    35

{

    36

	DoCommandP(tile, _cur_railtype, cmd, CcPlaySound1E,

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		_remove_button_clicked ? 

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		CMD_REMOVE_SINGLE_RAIL | CMD_MSG(STR_1012_CAN_T_REMOVE_RAILROAD_TRACK) | CMD_AUTO | CMD_NO_WATER : 

    39

		CMD_BUILD_SINGLE_RAIL | CMD_MSG(STR_1011_CAN_T_BUILD_RAILROAD_TRACK) | CMD_AUTO | CMD_NO_WATER

    40

		);

    41

}

    42

    43

static void PlaceRail_N(uint tile)

    44

{

    45

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

    46

	GenericPlaceRail(tile, cmd);

    47

}

    48

    49

static void PlaceRail_NE(uint tile)

    50

{

    51

	VpStartPlaceSizing(tile, VPM_FIX_Y);

    52

}

    53

    54

static void PlaceRail_E(uint tile)

    55

{

    56

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

    57

	GenericPlaceRail(tile, cmd);

    58

}

    59

    60

static void PlaceRail_NW(uint tile)

    61

{

    62

	VpStartPlaceSizing(tile, VPM_FIX_X);

    63

}

    64

    65

static void PlaceRail_AutoRail(uint tile)

    66

{

    67

	VpStartPlaceSizing(tile, VPM_RAILDIRS);

    68

}

    69

    70

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

    71

    72

static void PlaceExtraDepotRail(uint tile, uint16 extra)

    73

{

    74

	byte b = _map5[tile];

    75

    76

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

    77

		return;

    78

    79

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

    80

}

    81

    82

static const uint16 _place_depot_extra[12] = {

    83

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

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

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

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};

    87

    88

    89

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

    90

{

    91

	if (success) {

    92

		int dir = p2;

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    94

		SndPlayTileFx(0x1E, tile);

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		ResetObjectToPlace();

    96

    97

		tile += _place_depot_offs_xy[dir];

    98

    99

		if (IS_TILETYPE(tile, MP_RAILWAY)) {

   100

			PlaceExtraDepotRail(tile, _place_depot_extra[dir]);

   101

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

   102

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

   103

		}

   104

	}	

   105

}

   106

   107

static void PlaceRail_Depot(uint tile)

   108

{

   109

	DoCommandP(tile, _cur_railtype, _build_depot_direction, CcDepot, 

   110

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

   111

}

   112

   113

static void PlaceRail_Checkpoint(uint tile)

   114

{

   115

	if (!_remove_button_clicked) {

   116

		DoCommandP(tile, 0, 0, CcPlaySound1E, CMD_BUILD_TRAIN_CHECKPOINT | CMD_MSG(STR_CANT_BUILD_TRAIN_CHECKPOINT));

   117

	} else {

   118

		DoCommandP(tile, 0, 0, CcPlaySound1E, CMD_REMOVE_TRAIN_CHECKPOINT | CMD_MSG(STR_CANT_REMOVE_TRAIN_CHECKPOINT));

   119

	}

   120

}

   121

   122

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

   123

{

   124

	if (success) {

   125

		SndPlayTileFx(0x1E, tile);

   126

		ResetObjectToPlace();

   127

	}

   128

}

   129

   130

static void PlaceRail_Station(uint tile)

   131

{

   132

	if(_remove_button_clicked)

   133

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

   134

	else if (_railstation.dragdrop) {

   135

		VpStartPlaceSizing(tile, VPM_X_AND_Y_LIMITED);

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		VpSetPlaceSizingLimit(_patches.station_spread);

   137

	} else {

   138

		DoCommandP(tile, _railstation.orientation | (_railstation.numtracks<<8) | (_railstation.platlength<<16),_cur_railtype, CcStation,

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

   140

	}

   141

}

   142

   144

{

   145

	uint trackstat;

   146

	int i;

   147

   148

	trackstat = (byte)GetTileTrackStatus(tile,0);

   149

   150

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

   151

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

   152

	}

   153

   154

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

   155

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

   156

	}

   157

   158

	// Lookup the bit index

   159

	i = 0;

   160

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

   161

   162

	if (!_remove_button_clicked) {

   163

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

   164

			CMD_BUILD_SIGNALS | CMD_AUTO | CMD_MSG(STR_1010_CAN_T_BUILD_SIGNALS_HERE));

   165

	} else {

   166

		DoCommandP(tile, i, 0, CcPlaySound1E,

   167

			CMD_REMOVE_SIGNALS | CMD_AUTO | CMD_MSG(STR_1013_CAN_T_REMOVE_SIGNALS_FROM));

   168

	}

   169

}

   170

   171

static void PlaceRail_Bridge(uint tile)

   172

{

   173

	VpStartPlaceSizing(tile, VPM_X_OR_Y);

   174

}

   175

   176

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

   177

{

   178

	if (success) {

   179

		SndPlayTileFx(0x1E, tile);

   180

		ResetObjectToPlace();

   181

	} else {

   182

		SetRedErrorSquare(_build_tunnel_endtile);

   183

	}

   184

}

   185

   186

static void PlaceRail_Tunnel(uint tile)

   187

{

   188

	DoCommandP(tile, _cur_railtype, 0, CcBuildTunnel,

   189

		CMD_BUILD_TUNNEL | CMD_AUTO | CMD_MSG(STR_5016_CAN_T_BUILD_TUNNEL_HERE));

   190

}

   191

   192

void PlaceProc_BuyLand(uint tile)

   193

{

   194

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

   195

}

   196

   197

static void PlaceRail_ConvertRail(uint tile)

   198

{

   199

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

   200

}

   201

   207

static void BuildRailClick_AutoRail(Window *w)

   208

{

   209

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

   210

}

   211

   212

static void BuildRailClick_N(Window *w)

   213

{

   214

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

   215

}

   216

   217

static void BuildRailClick_NE(Window *w)

   218

{

   219

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

   220

}

   221

   222

static void BuildRailClick_E(Window *w)

   223

{

   224

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

   225

}

   226

   227

static void BuildRailClick_NW(Window *w)

   228

{

   229

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

   230

}

   231

   232

static void BuildRailClick_Demolish(Window *w)

   233

{

   234

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

   235

}

   236

   237

static void BuildRailClick_Lower(Window *w)

   238

{

   239

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

   240

}

   241

   242

static void BuildRailClick_Raise(Window *w)

   243

{

   244

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

   245

}

   246

   247

static const SpriteID _depot_cursors[] = {

   248

	0x510,

   249

	SPR_OPENTTD_BASE + 14,

   250

	SPR_OPENTTD_BASE + 15,

   251

};

   252

   253

static void BuildRailClick_Depot(Window *w)

   254

{

   255

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

   256

}

   257

   258

static void BuildRailClick_Station(Window *w)

   259

{

   260

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

   261

}

   262

   264

{

   266

}

   267

   268

static void BuildRailClick_Bridge(Window *w)

   269

{

   270

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

   271

}

   272

   273

static void BuildRailClick_Tunnel(Window *w)

   274

{

   275

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

   276

}

   277

   278

static void BuildRailClick_Remove(Window *w)

   279

{

   280

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

   281

		return;

   282

	SetWindowDirty(w);

   283

	SndPlayFx(0x13);

   284

   285

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

   286

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

   287

   288

	// handle station builder

   289

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

   290

	{

   291

		if(_remove_button_clicked)

   292

			SetTileSelectSize(1, 1);

   293

		else

   294

			BringWindowToFrontById(WC_BUILD_STATION, 0);

   295

	}

   296

}

   297

   298

static void BuildRailClick_Sign(Window *w)

   299

{

   300

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

   301

}

   302

   303

static void BuildRailClick_Checkpoint(Window *w)

   304

{

   305

	HandlePlacePushButton(w, 18, SPR_OPENTTD_BASE + 7, 1, PlaceRail_Checkpoint);

   306

}

   307

   308

static void BuildRailClick_Convert(Window *w)

   309

{

   310

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

   311

}

   312

   313

   314

static void DoRailroadTrack(int mode)

   315

{

   316

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

   317

		_remove_button_clicked ? 

   318

		CMD_REMOVE_RAILROAD_TRACK | CMD_AUTO | CMD_NO_WATER | CMD_MSG(STR_1012_CAN_T_REMOVE_RAILROAD_TRACK) :

   319

		CMD_BUILD_RAILROAD_TRACK | CMD_AUTO | CMD_NO_WATER | CMD_MSG(STR_1011_CAN_T_BUILD_RAILROAD_TRACK)

   320

	);

   321

}

   322

   323

typedef struct {

   324

	byte bit, a,b, mouse;

   325

} BestFitStruct;

   326

   327

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

   328

static const BestFitStruct _bestfit[] = {

   329

	// both edges have rail

   330

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

   331

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

   332

   333

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

   334

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

   335

   336

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

   337

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

   338

   339

	// one edge with rail

   340

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

   341

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

   342

   343

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

   344

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

   345

   346

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

   347

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

   348

   349

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

   350

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

   351

   352

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

   353

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

   354

   355

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

   356

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

   357

   358

	{0xff,0,0},

   359

};

   360

#undef M

   361

   362

static int GetBestArea(int x, int y)

   363

{

   364

	int r = 0;

   365

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

   366

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

   367

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

   368

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

   369

	return r;

   370

}

   371

   372

int GetBestFit1x1(int x, int y)

   373

{

   374

	byte m[5];

   375

	const BestFitStruct *bfs;

   376

	byte mouse;

   377

	uint tile;

   378

	int best;

   379

	int i;

   380

   381

	// determine the mouse regions

   382

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

   383

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

   384

   385

	// get the rail in each direction

   386

	tile = TILE_FROM_XY(x,y);

   387

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

   388

		static TileIndexDiff _tile_inc[5] = {

   389

			TILE_XY(-1, 0),

   390

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

   391

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

   392

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

   393

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

   394

		};

   395

		tile += _tile_inc[i];

   396

		m[i] = 0;

   397

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

   398

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

   399

   400

		// handle tracks under bridge

   401

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

   402

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

   403

   404

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

   405

	}

   406

   407

	// check "mouse gesture"?

   408

	{

   409

		int a1,a2;

   410

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

   411

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

   412

				{0,2,4,1},

   413

				{2,0,0,5},

   414

				{4,0,0,3},

   415

				{1,5,3,0},

   416

			};

   417

			i = _get_dir_by_areas[a2][a1];

   418

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

   419

				return i;

   420

		}

   421

	}

   422

	// check each bestfit struct

   423

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

   424

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

   425

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

   426

				return bfs->bit;

   427

			if (best != -1)

   428

				return best;

   429

			best = bfs->bit;

   430

		}

   431

	}

   432

   433

	return best;

   434

}

   435

   436

static void SwapSelection()

   437

{

   438

	TileHighlightData *thd = &_thd;

   439

	Point pt = thd->selstart;

   440

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

   441

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

   442

	thd->selend = pt;

   443

}

   444

   445

static bool Check2x1AutoRail(int mode)

   446

{

   447

	TileHighlightData *thd = &_thd;

   448

	int fxpy = _tile_fract_coords.x + _tile_fract_coords.y;

   449

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

   450

	int fxmy = _tile_fract_coords.x - _tile_fract_coords.y;

   451

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

   452

   453

	switch(mode) {

   454

	case 0:

   455

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

   456

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

   457

		break;

   458

   459

	case 1:

   460

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

   461

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

   462

		break;	

   463

   464

	case 2:

   465

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

   466

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

   467

		break;

   468

   469

	case 3:

   470

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

   471

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

   472

		break;

   473

	}

   474

   475

	return false;

   476

}

   477

   478

   479

static void HandleAutodirPlacement()

   480

{

   481

	TileHighlightData *thd = &_thd;

   482

	int bit;

   483

   484

	if (thd->drawstyle == HT_RECT) {

   485

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

   486

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

   487

   488

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

   489

			// 1x1 tile

   490

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

   491

			if (bit == -1) return;

   492

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

   493

		} else if (dx == 0) {

   494

			if (dy == -16) {

   495

				if (Check2x1AutoRail(0)) return;

   496

			} else if (dy == 16) {

   497

				if (Check2x1AutoRail(1)) return;

   498

			}

   499

			// same x coordinate

   500

			DoRailroadTrack(VPM_FIX_X);

   501

		} else {

   502

			// same y coordinate

   503

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

   504

			if (dx == -16) {

   505

				if (Check2x1AutoRail(2)) return;

   506

			} else if (dx == 16) {

   507

				if (Check2x1AutoRail(3)) return;

   508

			}

   509

			DoRailroadTrack(VPM_FIX_Y);

   510

		}

   511

	} else {

   512

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

   513

	}

   514

}

   515