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/* $Id$ */

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/** @file vehicle.cpp */

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#include "stdafx.h"

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#include "openttd.h"

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#include "road_map.h"

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#include "roadveh.h"

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#include "ship.h"

    10

#include "spritecache.h"

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#include "table/sprites.h"

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#include "table/strings.h"

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#include "functions.h"

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#include "landscape.h"

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#include "map.h"

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#include "tile.h"

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#include "vehicle.h"

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#include "timetable.h"

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#include "gfx.h"

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#include "viewport.h"

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#include "news.h"

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#include "command.h"

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#include "saveload.h"

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#include "player.h"

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#include "engine.h"

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#include "sound.h"

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#include "debug.h"

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#include "vehicle_gui.h"

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#include "depot.h"

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#include "station.h"

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#include "train.h"

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#include "aircraft.h"

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#include "industry_map.h"

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#include "station_map.h"

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#include "water_map.h"

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#include "network/network.h"

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#include "yapf/yapf.h"

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#include "date.h"

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#include "newgrf_callbacks.h"

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#include "newgrf_engine.h"

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#include "newgrf_sound.h"

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#include "helpers.hpp"

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#include "group.h"

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#include "economy.h"

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#include "strings.h"

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#include "order.h"

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    49

#define INVALID_COORD (0x7fffffff)

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#define GEN_HASH(x, y) ((GB((y), 6, 6) << 6) + GB((x), 7, 6))

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    52

    53

/* Tables used in vehicle.h to find the right command for a certain vehicle type */

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const uint32 _veh_build_proc_table[] = {

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	CMD_BUILD_RAIL_VEHICLE,

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	CMD_BUILD_ROAD_VEH,

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	CMD_BUILD_SHIP,

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	CMD_BUILD_AIRCRAFT,

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};

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const uint32 _veh_sell_proc_table[] = {

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	CMD_SELL_RAIL_WAGON,

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	CMD_SELL_ROAD_VEH,

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	CMD_SELL_SHIP,

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	CMD_SELL_AIRCRAFT,

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};

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    67

const uint32 _veh_refit_proc_table[] = {

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	CMD_REFIT_RAIL_VEHICLE,

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	CMD_REFIT_ROAD_VEH,

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	CMD_REFIT_SHIP,

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	CMD_REFIT_AIRCRAFT,

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};

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    74

const uint32 _send_to_depot_proc_table[] = {

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	CMD_SEND_TRAIN_TO_DEPOT,

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	CMD_SEND_ROADVEH_TO_DEPOT,

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	CMD_SEND_SHIP_TO_DEPOT,

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	CMD_SEND_AIRCRAFT_TO_HANGAR,

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};

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    81

    82

/* Initialize the vehicle-pool */

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DEFINE_OLD_POOL_GENERIC(Vehicle, Vehicle)

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    85

void VehicleServiceInDepot(Vehicle *v)

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{

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	v->date_of_last_service = _date;

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	v->breakdowns_since_last_service = 0;

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	v->reliability = GetEngine(v->engine_type)->reliability;

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	InvalidateWindow(WC_VEHICLE_DETAILS, v->index); // ensure that last service date and reliability are updated

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}

    92

    93

bool VehicleNeedsService(const Vehicle *v)

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{

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	if (v->vehstatus & (VS_STOPPED | VS_CRASHED))       return false;

    96

	if (v->current_order.type != OT_GOTO_DEPOT || !(v->current_order.flags & OF_PART_OF_ORDERS)) { // Don't interfere with a depot visit by the order list

    97

		if (_patches.gotodepot && VehicleHasDepotOrders(v)) return false;

    98

		if (v->current_order.type == OT_LOADING)            return false;

    99

		if (v->current_order.type == OT_GOTO_DEPOT && v->current_order.flags & OF_HALT_IN_DEPOT) return false;

   100

	}

   101

   102

	if (_patches.no_servicing_if_no_breakdowns && _opt.diff.vehicle_breakdowns == 0) {

   103

		return EngineHasReplacementForPlayer(GetPlayer(v->owner), v->engine_type, v->group_id);  /* Vehicles set for autoreplacing needs to go to a depot even if breakdowns are turned off */

   104

	}

   105

   106

	return _patches.servint_ispercent ?

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		(v->reliability < GetEngine(v->engine_type)->reliability * (100 - v->service_interval) / 100) :

   108

		(v->date_of_last_service + v->service_interval < _date);

   109

}

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   111

StringID VehicleInTheWayErrMsg(const Vehicle* v)

   112

{

   113

	switch (v->type) {

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		case VEH_TRAIN:    return STR_8803_TRAIN_IN_THE_WAY;

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		case VEH_ROAD:     return STR_9000_ROAD_VEHICLE_IN_THE_WAY;

   116

		case VEH_AIRCRAFT: return STR_A015_AIRCRAFT_IN_THE_WAY;

   117

		default:           return STR_980E_SHIP_IN_THE_WAY;

   118

	}

   119

}

   120

   121

static void *EnsureNoVehicleProcZ(Vehicle *v, void *data)

   122

{

   123

	byte z = *(byte*)data;

   124

   125

	if (v->type == VEH_DISASTER || (v->type == VEH_AIRCRAFT && v->subtype == AIR_SHADOW)) return NULL;

   126

	if (v->z_pos > z) return NULL;

   127

   128

	_error_message = VehicleInTheWayErrMsg(v);

   129

	return v;

   130

}

   131

   132

Vehicle *FindVehicleOnTileZ(TileIndex tile, byte z)

   133

{

   134

	return (Vehicle*)VehicleFromPos(tile, &z, &EnsureNoVehicleProcZ);

   135

}

   136

   137

bool EnsureNoVehicleOnGround(TileIndex tile)

   138

{

   139

	return FindVehicleOnTileZ(tile, GetTileMaxZ(tile)) == NULL;

   140

}

   141

   142

Vehicle *FindVehicleBetween(TileIndex from, TileIndex to, byte z, bool without_crashed)

   143

{

   144

	int x1 = TileX(from);

   145

	int y1 = TileY(from);

   146

	int x2 = TileX(to);

   147

	int y2 = TileY(to);

   148

	Vehicle *veh;

   149

   150

	/* Make sure x1 < x2 or y1 < y2 */

   151

	if (x1 > x2 || y1 > y2) {

   152

		Swap(x1, x2);

   153

		Swap(y1, y2);

   154

	}

   155

	FOR_ALL_VEHICLES(veh) {

   156

		if (without_crashed && (veh->vehstatus & VS_CRASHED) != 0) continue;

   157

		if ((veh->type == VEH_TRAIN || veh->type == VEH_ROAD) && (z == 0xFF || veh->z_pos == z)) {

   158

			if ((veh->x_pos >> 4) >= x1 && (veh->x_pos >> 4) <= x2 &&

   159

					(veh->y_pos >> 4) >= y1 && (veh->y_pos >> 4) <= y2) {

   160

				return veh;

   161

			}

   162

		}

   163

	}

   164

	return NULL;

   165

}

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   167

   168

/** Procedure called for every vehicle found in tunnel/bridge in the hash map */

   169

static void *GetVehicleTunnelBridgeProc(Vehicle *v, void *data)

   170

{

   171

	if (v->type != VEH_TRAIN && v->type != VEH_ROAD) return NULL;

   172

   173

	_error_message = VehicleInTheWayErrMsg(v);

   174

	return v;

   175

}

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   177

/**

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 * Finds vehicle in tunnel / bridge

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 * @param tile first end

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 * @param endtile second end

   181

 * @return pointer to vehicle found

   182

 */

   183

Vehicle *GetVehicleTunnelBridge(TileIndex tile, TileIndex endtile)

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{

   185

	Vehicle *v = (Vehicle*)VehicleFromPos(tile, NULL, &GetVehicleTunnelBridgeProc);

   186

	if (v != NULL) return v;

   187

   188

	return (Vehicle*)VehicleFromPos(endtile, NULL, &GetVehicleTunnelBridgeProc);

   189

}

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   191

   192

static void UpdateVehiclePosHash(Vehicle* v, int x, int y);

   193

   194

void VehiclePositionChanged(Vehicle *v)

   195

{

   196

	int img = v->cur_image;

   197

	Point pt = RemapCoords(v->x_pos + v->x_offs, v->y_pos + v->y_offs, v->z_pos);

   198

	const Sprite* spr = GetSprite(img);

   199

   200

	pt.x += spr->x_offs;

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	pt.y += spr->y_offs;

   202

   203

	UpdateVehiclePosHash(v, pt.x, pt.y);

   204

   205

	v->left_coord = pt.x;

   206

	v->top_coord = pt.y;

   207

	v->right_coord = pt.x + spr->width + 2;

   208

	v->bottom_coord = pt.y + spr->height + 2;

   209

}

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   211

/** Called after load to update coordinates */

   212

void AfterLoadVehicles()

   213

{

   214

	Vehicle *v;

   215

   216

	FOR_ALL_VEHICLES(v) {

   217

		/* Reinstate the previous pointer */

   218

		if (v->Next() != NULL) v->Next()->previous = v;

   219

   220

		v->UpdateDeltaXY(v->direction);

   221

   222

		v->fill_percent_te_id = INVALID_TE_ID;

   223

		v->first = NULL;

   224

		if (v->type == VEH_TRAIN) v->u.rail.first_engine = INVALID_ENGINE;

   225

		if (v->type == VEH_ROAD)  v->u.road.first_engine = INVALID_ENGINE;

   226

   227

		v->cargo.InvalidateCache();

   228

	}

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   230

	FOR_ALL_VEHICLES(v) {

   231

		/* Fill the first pointers */

   232

		if (v->Previous() == NULL) {

   233

			for (Vehicle *u = v; u != NULL; u = u->Next()) {

   234

				u->first = v;

   235

			}

   236

		}

   237

	}

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   239

	FOR_ALL_VEHICLES(v) {

   240

		assert(v->first != NULL);

   241

   242

		if (v->type == VEH_TRAIN && (IsFrontEngine(v) || IsFreeWagon(v))) {

   243

			TrainConsistChanged(v);

   244

		} else if (v->type == VEH_ROAD && IsRoadVehFront(v)) {

   245

			RoadVehUpdateCache(v);

   246

		}

   247

	}

   248

   249

	FOR_ALL_VEHICLES(v) {

   250

		switch (v->type) {

   251

			case VEH_ROAD:

   252

				v->u.road.roadtype = HasBit(EngInfo(v->engine_type)->misc_flags, EF_ROAD_TRAM) ? ROADTYPE_TRAM : ROADTYPE_ROAD;

   253

				v->u.road.compatible_roadtypes = RoadTypeToRoadTypes(v->u.road.roadtype);

   254

				/* FALL THROUGH */

   255

			case VEH_TRAIN:

   256

			case VEH_SHIP:

   257

				v->cur_image = v->GetImage(v->direction);

   258

				break;

   259

   260

			case VEH_AIRCRAFT:

   261

				if (IsNormalAircraft(v)) {

   262

					v->cur_image = v->GetImage(v->direction);

   263

   264

					/* The plane's shadow will have the same image as the plane */

   265

					Vehicle *shadow = v->Next();

   266

					shadow->cur_image = v->cur_image;

   267

   268

					/* In the case of a helicopter we will update the rotor sprites */

   269

					if (v->subtype == AIR_HELICOPTER) {

   270

						Vehicle *rotor = shadow->Next();

   271

						rotor->cur_image = GetRotorImage(v);

   272

					}

   273

   274

					UpdateAircraftCache(v);

   275

				}

   276

				break;

   277

			default: break;

   278

		}

   279

   280

		v->left_coord = INVALID_COORD;

   281

		VehiclePositionChanged(v);

   282

	}

   283

}

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   285

Vehicle::Vehicle()

   286

{

   287

	this->type               = VEH_INVALID;

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	this->left_coord         = INVALID_COORD;

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	this->group_id           = DEFAULT_GROUP;

   290

	this->fill_percent_te_id = INVALID_TE_ID;

   291

	this->first              = this;

   292

	this->colormap           = PAL_NONE;

   293

}

   294

   295

/**

   296

 * Get a value for a vehicle's random_bits.

   297

 * @return A random value from 0 to 255.

   298

 */

   299

byte VehicleRandomBits()

   300

{

   301

	return GB(Random(), 0, 8);

   302

}

   303

   304

   305

/* static */ bool Vehicle::AllocateList(Vehicle **vl, int num)

   306

{

   307

	uint counter = _Vehicle_pool.first_free_index;

   308

   309

	for (int i = 0; i != num; i++) {

   310

		Vehicle *v = AllocateRaw(counter);

   311

   312

		if (v == NULL) return false;

   313

		v = new (v) InvalidVehicle();

   314

   315

		if (vl != NULL) {

   316

			vl[i] = v;

   317

		}

   318

		counter++;

   319

	}

   320

   321

	return true;

   322

}

   323

   324

/* Size of the hash, 6 = 64 x 64, 7 = 128 x 128. Larger sizes will (in theory) reduce hash

   325

 * lookup times at the expense of memory usage. */

   326

const int HASH_BITS = 7;

   327

const int HASH_SIZE = 1 << HASH_BITS;

   328

const int HASH_MASK = HASH_SIZE - 1;

   329

const int TOTAL_HASH_SIZE = 1 << (HASH_BITS * 2);

   330

const int TOTAL_HASH_MASK = TOTAL_HASH_SIZE - 1;

   331

   332

/* Resolution of the hash, 0 = 1*1 tile, 1 = 2*2 tiles, 2 = 4*4 tiles, etc.

   333

 * Profiling results show that 0 is fastest. */

   334

const int HASH_RES = 0;

   335

   336

static Vehicle *_new_vehicle_position_hash[TOTAL_HASH_SIZE];

   337

   338

static void *VehicleFromHash(int xl, int yl, int xu, int yu, void *data, VehicleFromPosProc *proc)

   339

{

   340

	for (int y = yl; ; y = (y + (1 << HASH_BITS)) & (HASH_MASK << HASH_BITS)) {

   341

		for (int x = xl; ; x = (x + 1) & HASH_MASK) {

   342

			Vehicle *v = _new_vehicle_position_hash[(x + y) & TOTAL_HASH_MASK];

   343

			for (; v != NULL; v = v->next_new_hash) {

   344

				void *a = proc(v, data);

   345

				if (a != NULL) return a;

   346

			}

   347

			if (x == xu) break;

   348

		}

   349

		if (y == yu) break;

   350

	}

   351

   352

	return NULL;

   353

}

   354

   355

   356

void *VehicleFromPosXY(int x, int y, void *data, VehicleFromPosProc *proc)

   357

{

   358

	const int COLL_DIST = 6;

   359

   360

	/* Hash area to scan is from xl,yl to xu,yu */

   361

	int xl = GB((x - COLL_DIST) / TILE_SIZE, HASH_RES, HASH_BITS);

   362

	int xu = GB((x + COLL_DIST) / TILE_SIZE, HASH_RES, HASH_BITS);

   363

	int yl = GB((y - COLL_DIST) / TILE_SIZE, HASH_RES, HASH_BITS) << HASH_BITS;

   364

	int yu = GB((y + COLL_DIST) / TILE_SIZE, HASH_RES, HASH_BITS) << HASH_BITS;

   365

   366

	return VehicleFromHash(xl, yl, xu, yu, data, proc);

   367

}

   368

   369

   370

void *VehicleFromPos(TileIndex tile, void *data, VehicleFromPosProc *proc)

   371

{

   372

	int x = GB(TileX(tile), HASH_RES, HASH_BITS);

   373

	int y = GB(TileY(tile), HASH_RES, HASH_BITS) << HASH_BITS;

   374

   375

	Vehicle *v = _new_vehicle_position_hash[(x + y) & TOTAL_HASH_MASK];

   376

	for (; v != NULL; v = v->next_new_hash) {

   377

		if (v->tile != tile) continue;

   378

   379

		void *a = proc(v, data);

   380

		if (a != NULL) return a;

   381

	}

   382

   383

	return NULL;

   384

}

   385

   386

static void UpdateNewVehiclePosHash(Vehicle *v, bool remove)

   387

{

   388

	Vehicle **old_hash = v->old_new_hash;

   389

	Vehicle **new_hash;

   390

   391

	if (remove) {

   392

		new_hash = NULL;

   393

	} else {

   394

		int x = GB(TileX(v->tile), HASH_RES, HASH_BITS);

   395

		int y = GB(TileY(v->tile), HASH_RES, HASH_BITS) << HASH_BITS;

   396

		new_hash = &_new_vehicle_position_hash[(x + y) & TOTAL_HASH_MASK];

   397

	}

   398

   399

	if (old_hash == new_hash) return;

   400

   401

	/* Remove from the old position in the hash table */

   402

	if (old_hash != NULL) {

   403

		Vehicle *last = NULL;

   404

		Vehicle *u = *old_hash;

   405

		while (u != v) {

   406

			last = u;

   407

			u = u->next_new_hash;

   408

			assert(u != NULL);

   409

		}

   410

   411

		if (last == NULL) {

   412

			*old_hash = v->next_new_hash;

   413

		} else {

   414

			last->next_new_hash = v->next_new_hash;

   415

		}

   416

	}

   417

   418

	/* Insert vehicle at beginning of the new position in the hash table */

   419

	if (new_hash != NULL) {

   420

		v->next_new_hash = *new_hash;

   421

		*new_hash = v;

   422

		assert(v != v->next_new_hash);

   423

	}

   424

   425

	/* Remember current hash position */

   426

	v->old_new_hash = new_hash;

   427

}

   428

   429

static Vehicle *_vehicle_position_hash[0x1000];

   430

   431

static void UpdateVehiclePosHash(Vehicle* v, int x, int y)

   432

{

   433

	UpdateNewVehiclePosHash(v, x == INVALID_COORD);

   434

   435

	Vehicle **old_hash, **new_hash;

   436

	int old_x = v->left_coord;

   437

	int old_y = v->top_coord;

   438

   439

	new_hash = (x == INVALID_COORD) ? NULL : &_vehicle_position_hash[GEN_HASH(x, y)];

   440

	old_hash = (old_x == INVALID_COORD) ? NULL : &_vehicle_position_hash[GEN_HASH(old_x, old_y)];

   441

   442

	if (old_hash == new_hash) return;

   443

   444

	/* remove from hash table? */

   445

	if (old_hash != NULL) {

   446

		Vehicle *last = NULL;

   447

		Vehicle *u = *old_hash;

   448

		while (u != v) {

   449

			last = u;

   450

			u = u->next_hash;

   451

			assert(u != NULL);

   452

		}

   453

   454

		if (last == NULL) {

   455

			*old_hash = v->next_hash;

   456

		} else {

   457

			last->next_hash = v->next_hash;

   458

		}

   459

	}

   460

   461

	/* insert into hash table? */

   462

	if (new_hash != NULL) {

   463

		v->next_hash = *new_hash;

   464

		*new_hash = v;

   465

	}

   466

}

   467

   468

void ResetVehiclePosHash()

   469

{

   470

	Vehicle *v;

   471

	FOR_ALL_VEHICLES(v) { v->old_new_hash = NULL; }

   472

	memset(_vehicle_position_hash, 0, sizeof(_vehicle_position_hash));

   473

	memset(_new_vehicle_position_hash, 0, sizeof(_new_vehicle_position_hash));

   474

}

   475

   476

void ResetVehicleColorMap()

   477

{

   478

	Vehicle *v;

   479

	FOR_ALL_VEHICLES(v) { v->colormap = PAL_NONE; }

   480

}

   481

   482

void InitializeVehicles()

   483

{

   484

	_Vehicle_pool.CleanPool();

   485

	_Vehicle_pool.AddBlockToPool();

   486

   487

	ResetVehiclePosHash();

   488

}

   489