1

/*

     2

 * Next part is in Dutch, and only here for me, TrueLight, the maker of this new AI

     3

 */

     4

     5

// TODO: als iemand een vehicle stil zet op een weg waar de AI wil bouwen

     6

//         doet de AI helemaal niets meer

     7

// TODO: depot rondjes rijden stom iets dingus

     8

// TODO: jezelf afvragen of competitor_intelligence op niveau 2 wel meer geld moet opleverne...

     9

// TODO: als er iets in path komt, bouwt AI gewoon verder :(

    10

// TODO: mail routes

    11

    12

/*

    13

 * End of Dutch part

    14

 */

    15

    16

#include "stdafx.h"

    17

#include "ttd.h"

    18

#include "table/strings.h"

    19

#include "map.h"

    20

#include "command.h"

    21

#include "ai.h"

    22

#include "town.h"

    23

#include "industry.h"

    24

#include "station.h"

    25

#include "engine.h"

    26

#include "gui.h"

    27

    28

// This function is called after StartUp. It is the init of an AI

    29

static void AiNew_State_FirstTime(Player *p) {

    30

    // This assert is used to protect those function from misuse

    31

    //   You have quickly a small mistake in the state-array

    32

    //   With that, everything would go wrong. Finding that, is almost impossible

    33

    //   With this assert, that problem can never happen.

    34

    assert(p->ainew.state == AI_STATE_FIRST_TIME);

    35

	// We first have to init some things

    36

    37

	if (_current_player == 1) {

    38

		ShowErrorMessage(-1, TEMP_AI_IN_PROGRESS, 0, 0);

    39

	}

    40

    41

	// The PathFinder (AyStar)

    42

	// TODO: Maybe when an AI goes bankrupt, this is de-init

    43

	//  or when coming from a savegame.. should be checked out!

    44

    p->ainew.path_info.start_tile_tl = 0;

    45

    p->ainew.path_info.start_tile_br = 0;

    46

    p->ainew.path_info.end_tile_tl = 0;

    47

    p->ainew.path_info.end_tile_br = 0;

    48

	p->ainew.pathfinder = new_AyStar_AiPathFinder(12, &p->ainew.path_info);

    49

    50

	p->ainew.idle = 0;

    51

	p->ainew.last_vehiclecheck_date = _date;

    52

    53

	// We ALWAYS start with a bus route.. just some basic money ;)

    54

	p->ainew.action = AI_ACTION_BUS_ROUTE;

    55

    56

	// Let's popup the news, and after that, start building..

    57

	p->ainew.state = AI_STATE_WAKE_UP;

    58

}

    59

    60

// This function just waste some time

    61

//  It keeps it more real. The AI can build on such tempo no normal user

    62

//  can ever keep up with that. The competitor_speed already delays a bit

    63

//  but after the AI finished a track it really needs to go to sleep.

    64

//

    65

// Let's say, we sleep between one and three days if the AI is put on Very Fast.

    66

//  This means that on Very Slow it will be between 16 and 48 days.. slow enough?

    67

static void AiNew_State_Nothing(Player *p) {

    68

    assert(p->ainew.state == AI_STATE_NOTHING);

    69

    // If we are done idling, start over again

    70

	if (p->ainew.idle == 0) p->ainew.idle = RandomRange(DAY_TICKS * 2) + DAY_TICKS;

    71

	if (--p->ainew.idle == 0) {

    72

		// We are done idling.. what you say? Let's do something!

    73

		// I mean.. the next tick ;)

    74

		p->ainew.state = AI_STATE_WAKE_UP;

    75

	}

    76

}

    77

    78

// This function picks out a task we are going to do.

    79

//  Currently supported:

    80

//    - Make new route

    81

//    - Check route

    82

//    - Build HQ

    83

static void AiNew_State_WakeUp(Player *p) {

    84

    int32 money;

    85

    int c;

    86

    assert(p->ainew.state == AI_STATE_WAKE_UP);

    87

	// First, check if we have a HQ

    88

	if (p->location_of_house == 0) {

    89

		// We have no HQ yet, build one on a random place

    90

		// Random till we found a place for it!

    91

		// TODO: this should not be on a random place..

    92

		while (!AiNew_Build_CompanyHQ(p, (Random()&0xFFFF))) { }

    93

		// Enough for now, but we want to come back here the next time

    94

		//  so we do not change any status

    95

		return;

    96

	}

    97

    98

	money = p->player_money - AI_MINIMUM_MONEY;

    99

   100

	// Let's pick an action!

   101

	if (p->ainew.action == AI_ACTION_NONE) {

   102

		c = Random() & 0xFF;

   103

		if (p->current_loan > 0 && p->old_economy[1].income > AI_MINIMUM_INCOME_FOR_LOAN &&

   104

  			c < 10) {

   105

  			p->ainew.action = AI_ACTION_REPAY_LOAN;

   106

		} else if (p->ainew.last_vehiclecheck_date + AI_DAYS_BETWEEN_VEHICLE_CHECKS < _date) {

   107

			// Check all vehicles once in a while

   108

			p->ainew.action = AI_ACTION_CHECK_ALL_VEHICLES;

   109

			p->ainew.last_vehiclecheck_date = _date;

   110

		} else if (c < 100 && !_patches.ai_disable_veh_roadveh) {

   111

			// Do we have any spots for road-vehicles left open?

   112

			if (GetFreeUnitNumber(VEH_Road) <= _patches.max_roadveh) {

   113

				if (c < 85) p->ainew.action = AI_ACTION_TRUCK_ROUTE;

   114

				else p->ainew.action = AI_ACTION_BUS_ROUTE;

   115

			}

   116

		}/* else if (c < 200 && !_patches.ai_disable_veh_train) {

   117

			if (GetFreeUnitNumber(VEH_Train) <= _patches.max_trains) {

   118

				p->ainew.action = AI_ACTION_TRAIN_ROUTE;

   119

			}

   120

		}*/

   121

   122

		p->ainew.counter = 0;

   123

	}

   124

   125

	if (p->ainew.counter++ > AI_MAX_TRIES_FOR_SAME_ROUTE) {

   126

		p->ainew.action = AI_ACTION_NONE;

   127

		return;

   128

	}

   129

   130

	if (_patches.ai_disable_veh_roadveh && (

   131

		p->ainew.action == AI_ACTION_BUS_ROUTE || p->ainew.action == AI_ACTION_TRUCK_ROUTE)) {

   132

		p->ainew.action = AI_ACTION_NONE;

   133

		return;

   134

	}

   135

   136

	if (_patches.ai_disable_veh_roadveh && (

   137

		p->ainew.action == AI_ACTION_BUS_ROUTE || p->ainew.action == AI_ACTION_TRUCK_ROUTE)) {

   138

		p->ainew.action = AI_ACTION_NONE;

   139

		return;

   140

	}

   141

   142

	if (p->ainew.action == AI_ACTION_REPAY_LOAN && money > AI_MINIMUM_LOAN_REPAY_MONEY) {

   143

		// We start repaying some money..

   144

		p->ainew.state = AI_STATE_REPAY_MONEY;

   145

		return;

   146

	}

   147

   148

	if (p->ainew.action == AI_ACTION_CHECK_ALL_VEHICLES) {

   149

		p->ainew.state = AI_STATE_CHECK_ALL_VEHICLES;

   150

		return;

   151

	}

   152

   153

	// It is useless to start finding a route if we don't have enough money

   154

	//  to build the route anyway..

   155

	if (p->ainew.action == AI_ACTION_BUS_ROUTE && money > AI_MINIMUM_BUS_ROUTE_MONEY) {

   156

		if (GetFreeUnitNumber(VEH_Road) > _patches.max_roadveh) {

   157

			p->ainew.action = AI_ACTION_NONE;

   158

			return;

   159

		}

   160

		p->ainew.cargo = AI_NEED_CARGO;

   161

		p->ainew.state = AI_STATE_LOCATE_ROUTE;

   162

		p->ainew.tbt = AI_BUS; // Bus-route

   163

		return;

   164

	}

   165

	if (p->ainew.action == AI_ACTION_TRUCK_ROUTE && money > AI_MINIMUM_TRUCK_ROUTE_MONEY) {

   166

		if (GetFreeUnitNumber(VEH_Road) > _patches.max_roadveh) {

   167

			p->ainew.action = AI_ACTION_NONE;

   168

			return;

   169

		}

   170

		p->ainew.cargo = AI_NEED_CARGO;

   171

		p->ainew.last_id = 0;

   172

		p->ainew.state = AI_STATE_LOCATE_ROUTE;

   173

		p->ainew.tbt = AI_TRUCK;

   174

		return;

   175

	}

   176

   177

	p->ainew.state = AI_STATE_NOTHING;

   178

}

   179

   180

static void AiNew_State_ActionDone(Player *p) {

   181

    p->ainew.action = AI_ACTION_NONE;

   182

    p->ainew.state = AI_STATE_NOTHING;

   183

}

   184

   185

// Check if a city or industry is good enough to start a route there

   186

static bool AiNew_Check_City_or_Industry(Player *p, int ic, byte type) {

   187

	if (type == AI_CITY) {

   188

		Town *t = GetTown(ic);

   189

		Station *st;

   190

		int count = 0;

   191

		int j = 0;

   192

   193

		// We don't like roadconstructions, don't even true such a city

   194

		if (t->road_build_months != 0) return false;

   195

   196

		// Check if the rating in a city is high enough

   197

		//  If not, take a chance if we want to continue

   198

		if (t->ratings[_current_player] < 0 && CHANCE16(1,4)) return false;

   199

   200

		if (t->max_pass - t->act_pass < AI_CHECKCITY_NEEDED_CARGO && !CHANCE16(1,AI_CHECKCITY_CITY_CHANCE)) return false;

   201

   202

		// Check if we have build a station in this town the last 6 months

   203

		//  else we don't do it. This is done, because stat updates can be slow

   204

		//  and sometimes it takes up to 4 months before the stats are corectly.

   205

		//  This way we don't get 12 busstations in one city of 100 population ;)

   206

		FOR_ALL_STATIONS(st) {

   207

			// Is it an active station

   208

			if (st->xy == 0) continue;

   209

			// Do we own it?

   210

			if (st->owner == _current_player) {

   211

				// Are we talking busses?

   212

				if (p->ainew.tbt == AI_BUS && (FACIL_BUS_STOP & st->facilities) != FACIL_BUS_STOP) continue;

   213

				// Is it the same city as we are in now?

   214

				if (st->town != t) continue;

   215

				// When was this station build?

   216

				if (_date - st->build_date < AI_CHECKCITY_DATE_BETWEEN) return false;

   217

				// Cound the amount of stations in this city that we own

   218

				count++;

   219

			} else {

   220

				// We do not own it, request some info about the station

   221

				//  we want to know if this station gets the same good. If so,

   222

				//  we want to know its rating. If it is too high, we are not going

   223

				//  to build there

   224

				if (!st->goods[CT_PASSENGERS].last_speed) continue;

   225

				// Is it around our city

   226

				if (GetTileDist(st->xy, t->xy) > 10) continue;

   227

				// It does take this cargo.. what is his rating?

   228

				if (st->goods[CT_PASSENGERS].rating < AI_CHECKCITY_CARGO_RATING) continue;

   229

				j++;

   230

				// When this is the first station, we build a second with no problem ;)

   231

				if (j == 1) continue;

   232

				// The rating is high.. second station...

   233

				//  a little chance that we still continue

   234

				//  But if there are 3 stations of this size, we never go on...

   235

				if (j == 2 && CHANCE16(1, AI_CHECKCITY_CARGO_RATING_CHANCE)) continue;

   236

				// We don't like this station :(

   237

				return false;

   238

			}

   239

		}

   240

   241

		// We are about to add one...

   242

		count++;

   243

		// Check if we the city can provide enough cargo for this amount of stations..

   244

		if (count * AI_CHECKCITY_CARGO_PER_STATION > t->max_pass) return false;

   245

   246

		// All check are okay, so we can build here!

   247

		return true;

   248

	}

   249

	if (type == AI_INDUSTRY) {

   250

		Industry *i = GetIndustry(ic);

   251

		Station *st;

   252

		int count = 0;

   253

		int j = 0;

   254

   255

		if (i->town != NULL && i->town->ratings[_current_player] < 0 && CHANCE16(1,4)) return false;

   256

   257

		// No limits on delevering stations!

   258

		//  Or for industry that does not give anything yet

   259

		if (i->produced_cargo[0] == 0xFF || i->total_production[0] == 0) return true;

   260

   261

		if (i->total_production[0] - i->total_transported[0] < AI_CHECKCITY_NEEDED_CARGO) return false;

   262

   263

		// Check if we have build a station in this town the last 6 months

   264

		//  else we don't do it. This is done, because stat updates can be slow

   265

		//  and sometimes it takes up to 4 months before the stats are corectly.

   266

		FOR_ALL_STATIONS(st) {

   267

			// Is it an active station

   268

			if (st->xy == 0) continue;

   269

   270

			// Do we own it?

   271

			if (st->owner == _current_player) {

   272

				// Are we talking trucks?

   273

				if (p->ainew.tbt == AI_TRUCK && (FACIL_TRUCK_STOP & st->facilities) != FACIL_TRUCK_STOP) continue;

   274

				// Is it the same city as we are in now?

   275

				if (st->town != i->town) continue;

   276

				// When was this station build?

   277

				if (_date - st->build_date < AI_CHECKCITY_DATE_BETWEEN) return false;

   278

				// Cound the amount of stations in this city that we own

   279

				count++;

   280

			} else {

   281

				// We do not own it, request some info about the station

   282

				//  we want to know if this station gets the same good. If so,

   283

				//  we want to know its rating. If it is too high, we are not going

   284

				//  to build there

   285

				if (i->produced_cargo[0] == 0xFF) continue;

   286

				// It does not take this cargo

   287

				if (!st->goods[i->produced_cargo[0]].last_speed) continue;

   288

				// Is it around our industry

   289

				if (GetTileDist(st->xy, i->xy) > 5) continue;

   290

				// It does take this cargo.. what is his rating?

   291

				if (st->goods[i->produced_cargo[0]].rating < AI_CHECKCITY_CARGO_RATING) continue;

   292

				j++;

   293

				// The rating is high.. a little chance that we still continue

   294

				//  But if there are 2 stations of this size, we never go on...

   295

				if (j == 1 && CHANCE16(1, AI_CHECKCITY_CARGO_RATING_CHANCE)) continue;

   296

				// We don't like this station :(

   297

				return false;

   298

			}

   299

		}

   300

   301

		// We are about to add one...

   302

		count++;

   303

		// Check if we the city can provide enough cargo for this amount of stations..

   304

		if (count * AI_CHECKCITY_CARGO_PER_STATION > i->total_production[0]) return false;

   305

   306

		// All check are okay, so we can build here!

   307

		return true;

   308

	}

   309

   310

	return true;

   311

}

   312

   313

// This functions tries to locate a good route

   314

static void AiNew_State_LocateRoute(Player *p) {

   315

    assert(p->ainew.state == AI_STATE_LOCATE_ROUTE);

   316

    // For now, we only support PASSENGERS, CITY and BUSSES

   317

   318

    // We don't have a route yet

   319

    if (p->ainew.cargo == AI_NEED_CARGO) {

   320

    	p->ainew.new_cost = 0; // No cost yet

   321

    	p->ainew.temp = -1;

   322

    	// Reset the counter

   323

    	p->ainew.counter = 0;

   324

   325

    	p->ainew.from_ic = -1;

   326

    	p->ainew.to_ic = -1;

   327

   	    if (p->ainew.tbt == AI_BUS) {

   328

   	    	// For now we only have a passenger route

   329

   	    	p->ainew.cargo = CT_PASSENGERS;

   330

   331

	    	// Find a route to cities

   332

	    	p->ainew.from_type = AI_CITY;

   333

	    	p->ainew.to_type = AI_CITY;

   334

		} else if (p->ainew.tbt == AI_TRUCK) {

   335

   	    	p->ainew.cargo = AI_NO_CARGO;

   336

   337

	    	p->ainew.from_type = AI_INDUSTRY;

   338

	    	p->ainew.to_type = AI_INDUSTRY;

   339

		}

   340

   341

    	// Now we are doing initing, we wait one tick

   342

    	return;

   343

    }

   344

   345

    // Increase the counter and abort if it is taking too long!

   346

    p->ainew.counter++;

   347

    if (p->ainew.counter > AI_LOCATE_ROUTE_MAX_COUNTER) {

   348

        // Switch back to doing nothing!

   349

    	p->ainew.state = AI_STATE_NOTHING;

   350

    	return;

   351

    }

   352

   353

    // We are going to locate a city from where we are going to connect

   354

    if (p->ainew.from_ic == -1) {

   355

        if (p->ainew.temp == -1) {

   356

        	// First, we pick a random spot to search from

   357

        	if (p->ainew.from_type == AI_CITY)

   358

        		p->ainew.temp = RandomRange(_total_towns);

   359

       		else

   360

        		p->ainew.temp = RandomRange(_total_industries);

   361

        }

   362

   363

    	if (!AiNew_Check_City_or_Industry(p, p->ainew.temp, p->ainew.from_type)) {

   364

    		// It was not a valid city

   365

    		//  increase the temp with one, and return. We will come back later here

   366

    		//  to try again

   367

    		p->ainew.temp++;

   368

        	if (p->ainew.from_type == AI_CITY) {

   369

        		if (p->ainew.temp >= _total_towns) p->ainew.temp = 0;

   370

        	} else {

   371

        		if (p->ainew.temp >= _total_industries) p->ainew.temp = 0;

   372

        	}

   373

   374

        	// Don't do an attempt if we are trying the same id as the last time...

   375

        	if (p->ainew.last_id == p->ainew.temp) return;

   376

        	p->ainew.last_id = p->ainew.temp;

   377

   378

    		return;

   379

    	}

   380

   381

    	// We found a good city/industry, save the data of it

   382

    	p->ainew.from_ic = p->ainew.temp;

   383

   384

    	// Start the next tick with finding a to-city

   385

    	p->ainew.temp = -1;

   386

    	return;

   387

    }

   388

   389

    // Find a to-city

   390

    if (p->ainew.temp == -1) {

   391

       	// First, we pick a random spot to search to

   392

       	if (p->ainew.to_type == AI_CITY)

   393

       		p->ainew.temp = RandomRange(_total_towns);

   394

       	else

   395

       		p->ainew.temp = RandomRange(_total_industries);

   396

	}

   397

   398

	// The same city is not allowed

   399

	// Also check if the city is valid

   400

   	if (p->ainew.temp != p->ainew.from_ic && AiNew_Check_City_or_Industry(p, p->ainew.temp, p->ainew.to_type)) {

   401

   		// Maybe it is valid..

   402

   403

   		// We need to know if they are not to far apart from eachother..

   404

   		// We do that by checking how much cargo we have to move and how long the route

   405

   		//   is.

   406

   407

   		if (p->ainew.from_type == AI_CITY && p->ainew.tbt == AI_BUS) {

   408

   			int max_cargo = GetTown(p->ainew.from_ic)->max_pass + GetTown(p->ainew.temp)->max_pass;

   409

   			max_cargo -= GetTown(p->ainew.from_ic)->act_pass + GetTown(p->ainew.temp)->act_pass;

   410

   			// max_cargo is now the amount of cargo we can move between the two cities

   411

   			// If it is more than the distance, we allow it

   412

   			if (GetTileDist(GetTown(p->ainew.from_ic)->xy, GetTown(p->ainew.temp)->xy) <= max_cargo * AI_LOCATEROUTE_BUS_CARGO_DISTANCE) {

   413

   				// We found a good city/industry, save the data of it

   414

   				p->ainew.to_ic = p->ainew.temp;

   415

   				p->ainew.state = AI_STATE_FIND_STATION;

   416

   417

   				DEBUG(ai,1)("[AiNew - LocateRoute] Found bus-route of %d tiles long (from %d to %d)",GetTileDist(GetTown(p->ainew.from_ic)->xy, GetTown(p->ainew.temp)->xy), p->ainew.from_ic, p->ainew.temp);

   418

   419

   				p->ainew.from_tile = 0;

   420

   				p->ainew.to_tile = 0;

   421

   422

   				return;

   423

   			}

   424

   		} else if (p->ainew.tbt == AI_TRUCK) {

   425

         	bool found = false;

   426

         	int max_cargo = 0;

   427

         	int i;

   428

         	// TODO: in max_cargo, also check other cargo (beside [0])

   429

         	// First we check if the from_ic produces cargo that this ic accepts

   430

         	if (GetIndustry(p->ainew.from_ic)->produced_cargo[0] != 0xFF && GetIndustry(p->ainew.from_ic)->total_production[0] != 0) {

   431

	         	for (i=0;i<3;i++) {

   432

	         		if (GetIndustry(p->ainew.temp)->accepts_cargo[i] == 0xFF) break;

   433

					if (GetIndustry(p->ainew.from_ic)->produced_cargo[0] == GetIndustry(p->ainew.temp)->accepts_cargo[i]) {

   434

						// Found a compatbiel industry

   435

						max_cargo = GetIndustry(p->ainew.from_ic)->total_production[0] - GetIndustry(p->ainew.from_ic)->total_transported[0];

   436

						found = true;

   437

	   					p->ainew.from_deliver = true;

   438

	   					p->ainew.to_deliver = false;

   439

	       				break;

   440

	       			}

   441

	       		}

   442

   			}

   443

   			if (!found && GetIndustry(p->ainew.temp)->produced_cargo[0] != 0xFF && GetIndustry(p->ainew.temp)->total_production[0] != 0) {

   444

   				// If not check if the current ic produces cargo that the from_ic accepts

   445

	         	for (i=0;i<3;i++) {

   446

	         		if (GetIndustry(p->ainew.from_ic)->accepts_cargo[i] == 0xFF) break;

   447

					if (GetIndustry(p->ainew.temp)->produced_cargo[0] == GetIndustry(p->ainew.from_ic)->accepts_cargo[i]) {

   448

						// Found a compatbiel industry

   449

						found = true;

   450

						max_cargo = GetIndustry(p->ainew.temp)->total_production[0] - GetIndustry(p->ainew.from_ic)->total_transported[0];

   451

	   					p->ainew.from_deliver = false;

   452

	   					p->ainew.to_deliver = true;

   453

	       				break;

   454

	       			}

   455

	   			}

   456

   			}

   457

   			if (found) {

   458

   				// Yeah, they are compatible!!!

   459

   				// Check the length against the amount of goods

   460

   				if (GetTileDist(GetIndustry(p->ainew.from_ic)->xy, GetIndustry(p->ainew.temp)->xy) > AI_LOCATEROUTE_TRUCK_MIN_DISTANCE &&

   461

       				GetTileDist(GetIndustry(p->ainew.from_ic)->xy, GetIndustry(p->ainew.temp)->xy) <= max_cargo * AI_LOCATEROUTE_TRUCK_CARGO_DISTANCE) {

   462

	   				p->ainew.to_ic = p->ainew.temp;

   463

	   				if (p->ainew.from_deliver) {

   464

	   					p->ainew.cargo = GetIndustry(p->ainew.from_ic)->produced_cargo[0];

   465

	   				} else {

   466

   						p->ainew.cargo = GetIndustry(p->ainew.temp)->produced_cargo[0];

   467

   					}

   468

	   				p->ainew.state = AI_STATE_FIND_STATION;

   469

   470

	   				DEBUG(ai,1)("[AiNew - LocateRoute] Found truck-route of %d tiles long (from %d to %d)",GetTileDist(GetIndustry(p->ainew.from_ic)->xy, GetIndustry(p->ainew.temp)->xy), p->ainew.from_ic, p->ainew.temp);

   471

   472

	   				p->ainew.from_tile = 0;

   473

	   				p->ainew.to_tile = 0;

   474

   475

	   				return;

   476

	   			}

   477

   			}

   478

   		}

   479

   	}

   480

   481

    // It was not a valid city

   482

   	//  increase the temp with one, and return. We will come back later here

   483

   	//  to try again

   484

   	p->ainew.temp++;

   485

    if (p->ainew.to_type == AI_CITY) {

   486

    	if (p->ainew.temp >= _total_towns) p->ainew.temp = 0;

   487

    } else {

   488

    	if (p->ainew.temp >= _total_industries) p->ainew.temp = 0;

   489

    }

   490