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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"

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#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 "rail.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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}

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    93

bool VehicleNeedsService(const Vehicle *v)

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{

    95

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

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	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

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		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)

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{

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	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;

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		case VEH_AIRCRAFT: return STR_A015_AIRCRAFT_IN_THE_WAY;

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		default:           return STR_980E_SHIP_IN_THE_WAY;

   118

	}

   119

}

   120

   121

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

   122

{

   123

	const TileInfo *ti = (const TileInfo*)data;

   124

   125

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

   126

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

   127

   128

	_error_message = VehicleInTheWayErrMsg(v);

   129

	return v;

   130

}

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   132

   133

bool EnsureNoVehicleOnGround(TileIndex tile)

   134

{

   135

	TileInfo ti;

   136

   137

	ti.tile = tile;

   138

	ti.z = GetTileMaxZ(tile);

   139

	return VehicleFromPos(tile, &ti, EnsureNoVehicleProcZ) == NULL;

   140

}

   141

   142

Vehicle *FindVehicleOnTileZ(TileIndex tile, byte z)

   143

{

   144

	TileInfo ti;

   145

   146

	ti.tile = tile;

   147

	ti.z = z;

   148

   149

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

   150

}

   151

   152

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

   153

{

   154

	int x1 = TileX(from);

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	int y1 = TileY(from);

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	int x2 = TileX(to);

   157

	int y2 = TileY(to);

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	Vehicle *veh;

   159

   160

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

   161

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

   162

		Swap(x1, x2);

   163

		Swap(y1, y2);

   164

	}

   165

	FOR_ALL_VEHICLES(veh) {

   166

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

   167

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

   168

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

   169

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

   170

				return veh;

   171

			}

   172

		}

   173

	}

   174

	return NULL;

   175

}

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   177

   178

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

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   180

void VehiclePositionChanged(Vehicle *v)

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{

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	int img = v->cur_image;

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

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	const Sprite* spr = GetSprite(img);

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   186

	pt.x += spr->x_offs;

   187

	pt.y += spr->y_offs;

   188

   189

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

   190

   191

	v->left_coord = pt.x;

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	v->top_coord = pt.y;

   193

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

   194

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

   195

}

   196

   197

/** Called after load to update coordinates */

   198

void AfterLoadVehicles()

   199

{

   200

	Vehicle *v;

   201

   202

	FOR_ALL_VEHICLES(v) {

   203

		/* Reinstate the previous pointer */

   204

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

   205

   206

		v->UpdateDeltaXY(v->direction);

   207

   208

		v->fill_percent_te_id = INVALID_TE_ID;

   209

		v->first = NULL;

   210

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

   211

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

   212

   213

		v->cargo.InvalidateCache();

   214

	}

   215

   216

	FOR_ALL_VEHICLES(v) {

   217

		/* Fill the first pointers */

   218

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

   219

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

   220

				u->first = v;

   221

			}

   222

		}

   223

	}

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   225

	FOR_ALL_VEHICLES(v) {

   226

		assert(v->first != NULL);

   227

   228

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

   229

			TrainConsistChanged(v);

   230

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

   231

			RoadVehUpdateCache(v);

   232

		}

   233

	}

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   235

	FOR_ALL_VEHICLES(v) {

   236

		switch (v->type) {

   237

			case VEH_ROAD:

   238

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

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

   240

				/* FALL THROUGH */

   241

			case VEH_TRAIN:

   242

			case VEH_SHIP:

   243

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

   244

				break;

   245

   246

			case VEH_AIRCRAFT:

   247

				if (IsNormalAircraft(v)) {

   248

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

   249

   250

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

   251

					Vehicle *shadow = v->Next();

   252

					shadow->cur_image = v->cur_image;

   253

   254

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

   255

					if (v->subtype == AIR_HELICOPTER) {

   256

						Vehicle *rotor = shadow->Next();

   257

						rotor->cur_image = GetRotorImage(v);

   258

					}

   259

   260

					UpdateAircraftCache(v);

   261

				}

   262

				break;

   263

			default: break;

   264

		}

   265

   266

		v->left_coord = INVALID_COORD;

   267

		VehiclePositionChanged(v);

   268

	}

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}

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   271

Vehicle::Vehicle()

   272

{

   273

	this->type               = VEH_INVALID;

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	this->left_coord         = INVALID_COORD;

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	this->group_id           = DEFAULT_GROUP;

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	this->fill_percent_te_id = INVALID_TE_ID;

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	this->first              = this;

   278

	this->colormap           = PAL_NONE;

   279

}

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   281

/**

   282

 * Get a value for a vehicle's random_bits.

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 * @return A random value from 0 to 255.

   284

 */

   285

byte VehicleRandomBits()

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{

   287

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

   288

}

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   290

   291

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

   292

{

   293

	uint counter = _Vehicle_pool.first_free_index;

   294

   295

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

   296

		Vehicle *v = AllocateRaw(counter);

   297

   298

		if (v == NULL) return false;

   299

		v = new (v) InvalidVehicle();

   300

   301

		if (vl != NULL) {

   302

			vl[i] = v;

   303

		}

   304

		counter++;

   305

	}

   306

   307

	return true;

   308

}

   309

   310

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

   311

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

   312

const int HASH_BITS = 7;

   313

const int HASH_SIZE = 1 << HASH_BITS;

   314

const int HASH_MASK = HASH_SIZE - 1;

   315

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

   316

const int TOTAL_HASH_MASK = TOTAL_HASH_SIZE - 1;

   317

   318

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

   319

 * Profiling results show that 0 is fastest. */

   320

const int HASH_RES = 0;

   321

   322

static Vehicle *_new_vehicle_position_hash[TOTAL_HASH_SIZE];

   323

   324

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

   325

{

   326

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

   327

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

   328

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

   329

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

   330

				void *a = proc(v, data);

   331

				if (a != NULL) return a;

   332

			}

   333

			if (x == xu) break;

   334

		}

   335

		if (y == yu) break;

   336

	}

   337

   338

	return NULL;

   339

}

   340

   341

   342

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

   343

{

   344

	const int COLL_DIST = 6;

   345

   346

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

   347

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

   348

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

   349

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

   350

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

   351

   352

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

   353

}

   354

   355

   356

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

   357

{

   358

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

   359

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

   360

   361

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

   362

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

   363

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

   364

   365

		void *a = proc(v, data);

   366

		if (a != NULL) return a;

   367

	}

   368

   369

	return NULL;

   370

}

   371

   372

static void UpdateNewVehiclePosHash(Vehicle *v, bool remove)

   373

{

   374

	Vehicle **old_hash = v->old_new_hash;

   375

	Vehicle **new_hash;

   376

   377

	if (remove) {

   378

		new_hash = NULL;

   379

	} else {

   380

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

   381

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

   382

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

   383

	}

   384

   385

	if (old_hash == new_hash) return;

   386

   387

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

   388

	if (old_hash != NULL) {

   389

		Vehicle *last = NULL;

   390

		Vehicle *u = *old_hash;

   391

		while (u != v) {

   392

			last = u;

   393

			u = u->next_new_hash;

   394

			assert(u != NULL);

   395

		}

   396

   397

		if (last == NULL) {

   398

			*old_hash = v->next_new_hash;

   399

		} else {

   400

			last->next_new_hash = v->next_new_hash;

   401

		}

   402

	}

   403

   404

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

   405

	if (new_hash != NULL) {

   406

		v->next_new_hash = *new_hash;

   407

		*new_hash = v;

   408

		assert(v != v->next_new_hash);

   409

	}

   410

   411

	/* Remember current hash position */

   412

	v->old_new_hash = new_hash;

   413

}

   414

   415

static Vehicle *_vehicle_position_hash[0x1000];

   416

   417

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

   418

{

   419

	UpdateNewVehiclePosHash(v, x == INVALID_COORD);

   420

   421

	Vehicle **old_hash, **new_hash;

   422

	int old_x = v->left_coord;

   423

	int old_y = v->top_coord;

   424

   425

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

   426

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

   427

   428

	if (old_hash == new_hash) return;

   429

   430

	/* remove from hash table? */

   431

	if (old_hash != NULL) {

   432

		Vehicle *last = NULL;

   433

		Vehicle *u = *old_hash;

   434

		while (u != v) {

   435

			last = u;

   436

			u = u->next_hash;

   437

			assert(u != NULL);

   438

		}

   439

   440

		if (last == NULL) {

   441

			*old_hash = v->next_hash;

   442

		} else {

   443

			last->next_hash = v->next_hash;

   444

		}

   445

	}

   446

   447

	/* insert into hash table? */

   448

	if (new_hash != NULL) {

   449

		v->next_hash = *new_hash;

   450

		*new_hash = v;

   451

	}

   452

}

   453

   454

void ResetVehiclePosHash()

   455

{

   456

	Vehicle *v;

   457

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

   458

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

   459

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

   460

}

   461

   462

void ResetVehicleColorMap()

   463

{

   464

	Vehicle *v;

   465

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

   466

}

   467

   468

void InitializeVehicles()

   469

{

   470

	_Vehicle_pool.CleanPool();

   471

	_Vehicle_pool.AddBlockToPool();

   472

   473

	ResetVehiclePosHash();

   474

}

   475

   476

Vehicle *GetLastVehicleInChain(Vehicle *v)

   477

{

   478

	while (v->Next() != NULL) v = v->Next();

   479

	return v;

   480

}

   481

   482

uint CountVehiclesInChain(const Vehicle* v)

   483

{

   484

	uint count = 0;

   485

	do count++; while ((v = v->Next()) != NULL);

   486

	return count;

   487

}

   488

   489

/** Check if a vehicle is counted in num_engines in each player struct