OpenTTD-patches/airport.c

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#include "stdafx.h"
#include "ttd.h"
#include "airport.h"
AirportFTAClass *CountryAirport;
AirportFTAClass *CityAirport;
AirportFTAClass *Heliport, *Oilrig;
AirportFTAClass *MetropolitanAirport;
AirportFTAClass *InternationalAirport;
static void AirportFTAClass_Constructor(AirportFTAClass *Airport,
const byte nofterminals, const byte nofterminalgroups,
const byte nofhelipads, const byte nofhelipadgroups,
const byte entry_point, const byte acc_planes,
const AirportFTAbuildup *FA,
const TileIndex *depots);
static void AirportFTAClass_Destructor(AirportFTAClass *Airport);
static uint16 AirportGetNofElements(const AirportFTAbuildup *FA);
static void AirportBuildAutomata(AirportFTAClass *Airport, const AirportFTAbuildup *FA);
static byte AirportTestFTA(const AirportFTAClass *Airport);
/*static void AirportPrintOut(const AirportFTAClass *Airport, const bool full_report);
static byte AirportBlockToString(uint32 block);*/
void InitializeAirports()
{
// country airport
CountryAirport = (AirportFTAClass *)malloc(sizeof(AirportFTAClass));
AirportFTAClass_Constructor(CountryAirport, 2, 1, 0, 0, 16, ALL, _airport_fta_country, _airport_depots_country);
// city airport
CityAirport = (AirportFTAClass *)malloc(sizeof(AirportFTAClass));
AirportFTAClass_Constructor(CityAirport, 3, 1, 0, 0, 19, ALL, _airport_fta_city, _airport_depots_city);
// metropolitan airport
MetropolitanAirport = (AirportFTAClass *)malloc(sizeof(AirportFTAClass));
AirportFTAClass_Constructor(MetropolitanAirport, 3, 1, 0, 0, 20, ALL, _airport_fta_metropolitan, _airport_depots_metropolitan);
// international airport
InternationalAirport = (AirportFTAClass *)malloc(sizeof(AirportFTAClass));
AirportFTAClass_Constructor(InternationalAirport, 6, 2, 2, 1, 37, ALL, _airport_fta_international, _airport_depots_international);
// heliport, oilrig
Heliport = (AirportFTAClass *)malloc(sizeof(AirportFTAClass));
AirportFTAClass_Constructor(Heliport, 0, 0, 1, 1, 7, HELICOPTERS_ONLY, _airport_fta_heliport_oilrig, _airport_depots_heliport_oilrig);
Oilrig = Heliport; // exactly the same structure for heliport/oilrig, so share state machine
}
void UnInitializeAirports()
{
AirportFTAClass_Destructor(CountryAirport);
AirportFTAClass_Destructor(CityAirport);
AirportFTAClass_Destructor(Heliport);
AirportFTAClass_Destructor(MetropolitanAirport);
AirportFTAClass_Destructor(InternationalAirport);
}
static void AirportFTAClass_Constructor(AirportFTAClass *Airport,
const byte nofterminals, const byte nofterminalgroups,
const byte nofhelipads, const byte nofhelipadgroups,
const byte entry_point, const byte acc_planes,
const AirportFTAbuildup *FA,
const TileIndex *depots)
{
// if there are more terminals than 6, internal variables have to be changed, so don't allow that
// same goes for helipads
if (nofterminals > MAX_TERMINALS) { printf("Currently only maximum of %2d terminals are supported (you wanted %2d)\n", MAX_TERMINALS, nofterminals);}
if (nofhelipads > MAX_HELIPADS) { printf("Currently only maximum of %2d helipads are supported (you wanted %2d)\n", MAX_HELIPADS, nofhelipads);}
// terminals/helipads are divided into groups. Groups are computed by dividing the number
// of terminals by the number of groups. Half in half. If #terminals is uneven, first group
// will get the less # of terminals
if (nofterminalgroups > nofterminals) { printf("# of terminalgroups (%2d) must be less or equal to terminals (%2d)", nofterminals, nofterminalgroups);}
if (nofhelipadgroups > nofhelipads) { printf("# of helipadgroups (%2d) must be less or equal to helipads (%2d)", nofhelipads, nofhelipadgroups);}
assert(nofterminals <= MAX_TERMINALS);
assert(nofhelipads <= MAX_HELIPADS);
assert(nofterminalgroups <= nofterminals);
assert(nofhelipadgroups <= nofhelipads);
Airport->nofelements = AirportGetNofElements(FA);
// check
if (entry_point >= Airport->nofelements) {printf("Entry point (%2d) must be within the airport positions (which is max %2d)\n", entry_point, Airport->nofelements);}
assert(entry_point < Airport->nofelements);
Airport->nofterminals = nofterminals;
Airport->nofterminalgroups = nofterminalgroups;
Airport->nofhelipads = nofhelipads;
Airport->nofhelipadgroups = nofhelipadgroups;
Airport->acc_planes = acc_planes;
Airport->entry_point = entry_point;
Airport->airport_depots = (const uint16*)depots;
// build the state machine
AirportBuildAutomata(Airport, FA);
DEBUG(misc, 1) ("#Elements %2d; #Terminals %2d in %d group(s); #Helipads %2d in %d group(s)", Airport->nofelements,
Airport->nofterminals, Airport->nofterminalgroups, Airport->nofhelipads, Airport->nofhelipadgroups);
{
byte _retval = AirportTestFTA(Airport);
if (_retval != MAX_ELEMENTS) {printf("ERROR with element: %d\n", _retval-1);}
assert(_retval == MAX_ELEMENTS);
}
// print out full information
// true -- full info including heading, block, etc
// false -- short info, only position and next position
//AirportPrintOut(Airport, false);
}
static void AirportFTAClass_Destructor(AirportFTAClass *Airport)
{
int i;
AirportFTA *current, *next;
for (i = 0; i < Airport->nofelements; i++) {
current = Airport->layout[i].next_in_chain;
while (current != NULL) {
next = current->next_in_chain;
free(current);
current = next;
};
}
free(Airport->layout);
free(Airport);
}
static uint16 AirportGetNofElements(const AirportFTAbuildup *FA)
{
int i;
uint16 nofelements = 0;
int temp = FA[0].position;
for (i = 0; i < MAX_ELEMENTS; i++) {
if (temp != FA[i].position) {
nofelements++;
temp = FA[i].position;
}
if (FA[i].position == MAX_ELEMENTS) {break;}
}
return nofelements;
}
static void AirportBuildAutomata(AirportFTAClass *Airport, const AirportFTAbuildup *FA)
{
AirportFTA *FAutomata;
AirportFTA *current;
uint16 internalcounter, i;
FAutomata = (AirportFTA *)malloc(sizeof(AirportFTA) * Airport->nofelements);
Airport->layout = FAutomata;
internalcounter = 0;
for (i = 0; i < Airport->nofelements; i++) {
current = &Airport->layout[i];
current->position = FA[internalcounter].position;
current->heading = FA[internalcounter].heading;
current->block = FA[internalcounter].block;
current->next_position = FA[internalcounter].next_in_chain;
// outgoing nodes from the same position, create linked list
while (current->position == FA[internalcounter+1].position) {
AirportFTA *newNode = (AirportFTA *)malloc(sizeof(AirportFTA));
newNode->position = FA[internalcounter+1].position;
newNode->heading = FA[internalcounter+1].heading;
newNode->block = FA[internalcounter+1].block;
newNode->next_position = FA[internalcounter+1].next_in_chain;
// create link
current->next_in_chain = newNode;
current = current->next_in_chain;
internalcounter++;
} // while
current->next_in_chain = NULL;
internalcounter++;
}
}
static byte AirportTestFTA(const AirportFTAClass *Airport)
{
byte position, i, next_element;
AirportFTA *temp;
next_element = 0;
for (i = 0; i < Airport->nofelements; i++) {
position = Airport->layout[i].position;
if (position != next_element) {return i;}
temp = &Airport->layout[i];
do {
if (temp->heading > MAX_HEADINGS && temp->heading != 255) {return i;}
if (temp->heading == 0 && temp->next_in_chain != 0) {return i;}
if (position != temp->position) {return i;}
if (temp->next_position >= Airport->nofelements) {return i;}
temp = temp->next_in_chain;
} while (temp != NULL);
next_element++;
}
return MAX_ELEMENTS;
}
static const char* const _airport_heading_strings[MAX_HEADINGS+2] = {
"TO_ALL",
"HANGAR",
"TERM1",
"TERM2",
"TERM3",
"TERM4",
"TERM5",
"TERM6",
"HELIPAD1",
"HELIPAD2",
"TAKEOFF",
"STARTTAKEOFF",
"ENDTAKEOFF",
"HELITAKEOFF",
"FLYING",
"LANDING",
"ENDLANDING",
"HELILANDING",
"HELIENDLANDING",
"DUMMY" // extra heading for 255
};
/*
static void AirportPrintOut(const AirportFTAClass *Airport, const bool full_report)
{
AirportFTA *temp;
uint16 i;
byte heading;
printf("(P = Current Position; NP = Next Position)\n");
for (i = 0; i < Airport->nofelements; i++) {
temp = &Airport->layout[i];
if (full_report) {
heading = (temp->heading == 255) ? MAX_HEADINGS+1 : temp->heading;
printf("Pos:%2d NPos:%2d Heading:%15s Block:%2d\n", temp->position, temp->next_position,
_airport_heading_strings[heading], AirportBlockToString(temp->block));
}
else { printf("P:%2d NP:%2d", temp->position, temp->next_position);}
while (temp->next_in_chain != NULL) {
temp = temp->next_in_chain;
if (full_report) {
heading = (temp->heading == 255) ? MAX_HEADINGS+1 : temp->heading;
printf("Pos:%2d NPos:%2d Heading:%15s Block:%2d\n", temp->position, temp->next_position,
_airport_heading_strings[heading], AirportBlockToString(temp->block));
}
else { printf("P:%2d NP:%2d", temp->position, temp->next_position);}
}
printf("\n");
}
}
static byte AirportBlockToString(uint32 block)
{
byte i = 0;
if (block & 0xffff0000) { block >>= 16; i += 16; }
if (block & 0x0000ff00) { block >>= 8; i += 8; }
if (block & 0x000000f0) { block >>= 4; i += 4; }
if (block & 0x0000000c) { block >>= 2; i += 2; }
if (block & 0x00000002) { i += 1; }
return i;
}*/
const AirportFTAClass* GetAirport(const byte airport_type)
{
AirportFTAClass *Airport = NULL;
//FIXME -- AircraftNextAirportPos_and_Order -> Needs something nicer, don't like this code
// needs constant change if more airports are added
switch (airport_type) {
case AT_SMALL: Airport = CountryAirport; break;
case AT_LARGE: Airport = CityAirport; break;
case AT_METROPOLITAN: Airport = MetropolitanAirport; break;
case AT_HELIPORT: Airport = Heliport; break;
case AT_OILRIG: Airport = Oilrig; break;
case AT_INTERNATIONAL: Airport = InternationalAirport; break;
default:
#ifdef DEBUG__
printf("Airport AircraftNextAirportPos_and_Order not yet implemented\n");
#endif
assert(airport_type <= AT_INTERNATIONAL);
}
return Airport;
}