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r14847:17c348b2df58 r14847:17c348b2df58 r14847:17c348b2df58 r14847:17c348b2df58 r14847:17c348b2df58 r14847:17c348b2df58 r14847:17c348b2df58 r14847:17c348b2df58 r14847:17c348b2df58 r14849:27386629fac1 r14847:17c348b2df58 r14847:17c348b2df58 r14847:17c348b2df58 r14847:17c348b2df58 r14847:17c348b2df58 r14858:9dcf234fd548 r14847:17c348b2df58 r14847:17c348b2df58 r14847:17c348b2df58 r14847:17c348b2df58 r14847:17c348b2df58 r14847:17c348b2df58 | /*
* This file is part of OpenTTD.
* OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
* OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file airport.cpp Functions related to airports. */
#include "stdafx.h"
#include "station_base.h"
#include "table/strings.h"
#include "table/airport_movement.h"
#include "table/airporttile_ids.h"
#include "safeguards.h"
/**
* Define a generic airport.
* @param name Suffix of the names of the airport data.
* @param terminals The terminals.
* @param num_helipads Number of heli pads.
* @param flags Information about the class of FTA.
* @param delta_z Height of the airport above the land.
*/
#define AIRPORT_GENERIC(name, terminals, num_helipads, flags, delta_z) \
static const AirportFTAClass _airportfta_ ## name(_airport_moving_data_ ## name, terminals, \
num_helipads, _airport_entries_ ## name, flags, _airport_fta_ ## name, delta_z);
/**
* Define an airport.
* @param name Suffix of the names of the airport data.
* @param num_helipads Number of heli pads.
* @param short_strip Airport has a short land/take-off strip.
*/
#define AIRPORT(name, num_helipads, short_strip) \
AIRPORT_GENERIC(name, _airport_terminal_ ## name, num_helipads, AirportFTAClass::ALL | (short_strip ? AirportFTAClass::SHORT_STRIP : (AirportFTAClass::Flags)0), 0)
/**
* Define a heliport.
* @param name Suffix of the names of the helipad data.
* @param num_helipads Number of heli pads.
* @param delta_z Height of the airport above the land.
*/
#define HELIPORT(name, num_helipads, delta_z) \
AIRPORT_GENERIC(name, nullptr, num_helipads, AirportFTAClass::HELICOPTERS, delta_z)
AIRPORT(country, 0, true)
AIRPORT(city, 0, false)
HELIPORT(heliport, 1, 60)
AIRPORT(metropolitan, 0, false)
AIRPORT(international, 2, false)
AIRPORT(commuter, 2, true)
HELIPORT(helidepot, 1, 0)
AIRPORT(intercontinental, 2, false)
HELIPORT(helistation, 3, 0)
HELIPORT(oilrig, 1, 54)
AIRPORT_GENERIC(dummy, nullptr, 0, AirportFTAClass::ALL, 0)
#undef HELIPORT
#undef AIRPORT
#undef AIRPORT_GENERIC
#include "table/airport_defaults.h"
static uint16 AirportGetNofElements(const AirportFTAbuildup *apFA);
static AirportFTA *AirportBuildAutomata(uint nofelements, const AirportFTAbuildup *apFA);
/**
* Rotate the airport moving data to another rotation.
* @param orig Pointer to the moving data to rotate.
* @param rotation How to rotate the moving data.
* @param num_tiles_x Number of tiles in x direction.
* @param num_tiles_y Number of tiles in y direction.
* @return The rotated moving data.
*/
AirportMovingData RotateAirportMovingData(const AirportMovingData *orig, Direction rotation, uint num_tiles_x, uint num_tiles_y)
{
AirportMovingData amd;
amd.flag = orig->flag;
amd.direction = ChangeDir(orig->direction, (DirDiff)rotation);
switch (rotation) {
case DIR_N:
amd.x = orig->x;
amd.y = orig->y;
break;
case DIR_E:
amd.x = orig->y;
amd.y = num_tiles_y * TILE_SIZE - orig->x - 1;
break;
case DIR_S:
amd.x = num_tiles_x * TILE_SIZE - orig->x - 1;
amd.y = num_tiles_y * TILE_SIZE - orig->y - 1;
break;
case DIR_W:
amd.x = num_tiles_x * TILE_SIZE - orig->y - 1;
amd.y = orig->x;
break;
default: NOT_REACHED();
}
return amd;
}
AirportFTAClass::AirportFTAClass(
const AirportMovingData *moving_data_,
const byte *terminals_,
const byte num_helipads_,
const byte *entry_points_,
Flags flags_,
const AirportFTAbuildup *apFA,
byte delta_z_
) :
moving_data(moving_data_),
terminals(terminals_),
num_helipads(num_helipads_),
flags(flags_),
nofelements(AirportGetNofElements(apFA)),
entry_points(entry_points_),
delta_z(delta_z_)
{
/* Build the state machine itself */
this->layout = AirportBuildAutomata(this->nofelements, apFA);
}
AirportFTAClass::~AirportFTAClass()
{
for (uint i = 0; i < nofelements; i++) {
AirportFTA *current = layout[i].next;
while (current != nullptr) {
AirportFTA *next = current->next;
free(current);
current = next;
}
}
free(layout);
}
/**
* Get the number of elements of a source Airport state automata
* Since it is actually just a big array of AirportFTA types, we only
* know one element from the other by differing 'position' identifiers
*/
static uint16 AirportGetNofElements(const AirportFTAbuildup *apFA)
{
uint16 nofelements = 0;
int temp = apFA[0].position;
for (uint i = 0; i < MAX_ELEMENTS; i++) {
if (temp != apFA[i].position) {
nofelements++;
temp = apFA[i].position;
}
if (apFA[i].position == MAX_ELEMENTS) break;
}
return nofelements;
}
/**
* Construct the FTA given a description.
* @param nofelements The number of elements in the FTA.
* @param apFA The description of the FTA.
* @return The FTA describing the airport.
*/
static AirportFTA *AirportBuildAutomata(uint nofelements, const AirportFTAbuildup *apFA)
{
AirportFTA *FAutomata = MallocT<AirportFTA>(nofelements);
uint16 internalcounter = 0;
for (uint i = 0; i < nofelements; i++) {
AirportFTA *current = &FAutomata[i];
current->position = apFA[internalcounter].position;
current->heading = apFA[internalcounter].heading;
current->block = apFA[internalcounter].block;
current->next_position = apFA[internalcounter].next;
/* outgoing nodes from the same position, create linked list */
while (current->position == apFA[internalcounter + 1].position) {
AirportFTA *newNode = MallocT<AirportFTA>(1);
newNode->position = apFA[internalcounter + 1].position;
newNode->heading = apFA[internalcounter + 1].heading;
newNode->block = apFA[internalcounter + 1].block;
newNode->next_position = apFA[internalcounter + 1].next;
/* create link */
current->next = newNode;
current = current->next;
internalcounter++;
}
current->next = nullptr;
internalcounter++;
}
return FAutomata;
}
/**
* Get the finite state machine of an airport type.
* @param airport_type %Airport type to query FTA from. @see AirportTypes
* @return Finite state machine of the airport.
*/
const AirportFTAClass *GetAirport(const byte airport_type)
{
if (airport_type == AT_DUMMY) return &_airportfta_dummy;
return AirportSpec::Get(airport_type)->fsm;
}
/**
* Get the vehicle position when an aircraft is build at the given tile
* @param hangar_tile The tile on which the vehicle is build
* @return The position (index in airport node array) where the aircraft ends up
*/
byte GetVehiclePosOnBuild(TileIndex hangar_tile)
{
const Station *st = Station::GetByTile(hangar_tile);
const AirportFTAClass *apc = st->airport.GetFTA();
/* When we click on hangar we know the tile it is on. By that we know
* its position in the array of depots the airport has.....we can search
* layout for #th position of depot. Since layout must start with a listing
* of all depots, it is simple */
for (uint i = 0;; i++) {
if (st->airport.GetHangarTile(i) == hangar_tile) {
assert(apc->layout[i].heading == HANGAR);
return apc->layout[i].position;
}
}
NOT_REACHED();
}
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