You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
720 lines
21 KiB
C
720 lines
21 KiB
C
/* $Id$ */
|
|
|
|
/** @file newgrf_station.c Functions for dealing with station classes and custom stations. */
|
|
|
|
#include "stdafx.h"
|
|
#include "openttd.h"
|
|
#include "variables.h"
|
|
#include "functions.h"
|
|
#include "debug.h"
|
|
#include "sprite.h"
|
|
#include "table/sprites.h"
|
|
#include "table/strings.h"
|
|
#include "station.h"
|
|
#include "station_map.h"
|
|
#include "newgrf_callbacks.h"
|
|
#include "newgrf_station.h"
|
|
#include "newgrf_spritegroup.h"
|
|
|
|
static StationClass station_classes[STAT_CLASS_MAX];
|
|
|
|
enum {
|
|
MAX_SPECLIST = 255,
|
|
};
|
|
|
|
/**
|
|
* Reset station classes to their default state.
|
|
* This includes initialising the Default and Waypoint classes with an empty
|
|
* entry, for standard stations and waypoints.
|
|
*/
|
|
void ResetStationClasses(void)
|
|
{
|
|
StationClassID i;
|
|
for (i = 0; i < STAT_CLASS_MAX; i++) {
|
|
station_classes[i].id = 0;
|
|
station_classes[i].name = STR_EMPTY;
|
|
station_classes[i].stations = 0;
|
|
|
|
free(station_classes[i].spec);
|
|
station_classes[i].spec = NULL;
|
|
}
|
|
|
|
// Set up initial data
|
|
station_classes[0].id = 'DFLT';
|
|
station_classes[0].name = STR_STAT_CLASS_DFLT;
|
|
station_classes[0].stations = 1;
|
|
station_classes[0].spec = malloc(sizeof(*station_classes[0].spec));
|
|
station_classes[0].spec[0] = NULL;
|
|
|
|
station_classes[1].id = 'WAYP';
|
|
station_classes[1].name = STR_STAT_CLASS_WAYP;
|
|
station_classes[1].stations = 1;
|
|
station_classes[1].spec = malloc(sizeof(*station_classes[1].spec));
|
|
station_classes[1].spec[0] = NULL;
|
|
}
|
|
|
|
/**
|
|
* Allocate a station class for the given class id.
|
|
* @param classid A 32 bit value identifying the class.
|
|
* @return Index into station_classes of allocated class.
|
|
*/
|
|
StationClassID AllocateStationClass(uint32 class)
|
|
{
|
|
StationClassID i;
|
|
|
|
for (i = 0; i < STAT_CLASS_MAX; i++) {
|
|
if (station_classes[i].id == class) {
|
|
// ClassID is already allocated, so reuse it.
|
|
return i;
|
|
} else if (station_classes[i].id == 0) {
|
|
// This class is empty, so allocate it to the ClassID.
|
|
station_classes[i].id = class;
|
|
return i;
|
|
}
|
|
}
|
|
|
|
DEBUG(grf, 2)("StationClassAllocate: Already allocated %d classes, using default.", STAT_CLASS_MAX);
|
|
return STAT_CLASS_DFLT;
|
|
}
|
|
|
|
/** Set the name of a custom station class */
|
|
void SetStationClassName(StationClassID sclass, StringID name)
|
|
{
|
|
assert(sclass < STAT_CLASS_MAX);
|
|
station_classes[sclass].name = name;
|
|
}
|
|
|
|
/** Retrieve the name of a custom station class */
|
|
StringID GetStationClassName(StationClassID sclass)
|
|
{
|
|
assert(sclass < STAT_CLASS_MAX);
|
|
return station_classes[sclass].name;
|
|
}
|
|
|
|
/** Build a list of station class name StringIDs to use in a dropdown list
|
|
* @return Pointer to a (static) array of StringIDs
|
|
*/
|
|
StringID *BuildStationClassDropdown(void)
|
|
{
|
|
/* Allow room for all station classes, plus a terminator entry */
|
|
static StringID names[STAT_CLASS_MAX + 1];
|
|
uint i;
|
|
|
|
/* Add each name */
|
|
for (i = 0; i < STAT_CLASS_MAX && station_classes[i].id != 0; i++) {
|
|
names[i] = station_classes[i].name;
|
|
}
|
|
/* Terminate the list */
|
|
names[i] = INVALID_STRING_ID;
|
|
|
|
return names;
|
|
}
|
|
|
|
/**
|
|
* Get the number of station classes in use.
|
|
* @return Number of station classes.
|
|
*/
|
|
uint GetNumStationClasses(void)
|
|
{
|
|
uint i;
|
|
for (i = 0; i < STAT_CLASS_MAX && station_classes[i].id != 0; i++);
|
|
return i;
|
|
}
|
|
|
|
/**
|
|
* Return the number of stations for the given station class.
|
|
* @param sclass Index of the station class.
|
|
* @return Number of stations in the class.
|
|
*/
|
|
uint GetNumCustomStations(StationClassID sclass)
|
|
{
|
|
assert(sclass < STAT_CLASS_MAX);
|
|
return station_classes[sclass].stations;
|
|
}
|
|
|
|
/**
|
|
* Tie a station spec to its station class.
|
|
* @param spec The station spec.
|
|
*/
|
|
void SetCustomStationSpec(StationSpec *statspec)
|
|
{
|
|
StationClass *station_class;
|
|
int i;
|
|
|
|
/* If the station has already been allocated, don't reallocate it. */
|
|
if (statspec->allocated) return;
|
|
|
|
assert(statspec->sclass < STAT_CLASS_MAX);
|
|
station_class = &station_classes[statspec->sclass];
|
|
|
|
i = station_class->stations++;
|
|
station_class->spec = realloc(station_class->spec, station_class->stations * sizeof(*station_class->spec));
|
|
|
|
station_class->spec[i] = statspec;
|
|
statspec->allocated = true;
|
|
}
|
|
|
|
/**
|
|
* Retrieve a station spec from a class.
|
|
* @param sclass Index of the station class.
|
|
* @param station The station index with the class.
|
|
* @return The station spec.
|
|
*/
|
|
const StationSpec *GetCustomStationSpec(StationClassID sclass, uint station)
|
|
{
|
|
assert(sclass < STAT_CLASS_MAX);
|
|
if (station < station_classes[sclass].stations)
|
|
return station_classes[sclass].spec[station];
|
|
|
|
// If the custom station isn't defined any more, then the GRF file
|
|
// probably was not loaded.
|
|
return NULL;
|
|
}
|
|
|
|
|
|
const StationSpec *GetCustomStationSpecByGrf(uint32 grfid, byte localidx)
|
|
{
|
|
StationClassID i;
|
|
uint j;
|
|
|
|
for (i = STAT_CLASS_DFLT; i < STAT_CLASS_MAX; i++) {
|
|
for (j = 0; j < station_classes[i].stations; j++) {
|
|
const StationSpec *statspec = station_classes[i].spec[j];
|
|
if (statspec == NULL) continue;
|
|
if (statspec->grfid == grfid && statspec->localidx == localidx) return statspec;
|
|
}
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
|
|
/* Evaluate a tile's position within a station, and return the result a bitstuffed format.
|
|
* if not centred: .TNLcCpP, if centred: .TNL..CP
|
|
* T = Tile layout number (GetStationGfx), N = Number of platforms, L = Length of platforms
|
|
* C = Current platform number from start, c = from end
|
|
* P = Position along platform from start, p = from end
|
|
* if centred, C/P start from the centre and c/p are not available.
|
|
*/
|
|
uint32 GetPlatformInfo(Axis axis, byte tile, int platforms, int length, int x, int y, bool centred)
|
|
{
|
|
uint32 retval = 0;
|
|
|
|
if (axis == AXIS_X) {
|
|
intswap(platforms, length);
|
|
intswap(x, y);
|
|
}
|
|
|
|
/* Limit our sizes to 4 bits */
|
|
platforms = min(15, platforms);
|
|
length = min(15, length);
|
|
x = min(15, x);
|
|
y = min(15, y);
|
|
if (centred) {
|
|
x -= platforms / 2;
|
|
y -= length / 2;
|
|
SB(retval, 0, 4, y & 0xF);
|
|
SB(retval, 4, 4, x & 0xF);
|
|
} else {
|
|
SB(retval, 0, 4, y);
|
|
SB(retval, 4, 4, length - y - 1);
|
|
SB(retval, 8, 4, x);
|
|
SB(retval, 12, 4, platforms - x - 1);
|
|
}
|
|
SB(retval, 16, 4, length);
|
|
SB(retval, 20, 4, platforms);
|
|
SB(retval, 24, 4, tile);
|
|
|
|
return retval;
|
|
}
|
|
|
|
|
|
/* Find the end of a railway station, from the tile, in the direction of delta.
|
|
* If check_type is set, we stop if the custom station type changes.
|
|
* If check_axis is set, we stop if the station direction changes.
|
|
*/
|
|
static TileIndex FindRailStationEnd(TileIndex tile, TileIndexDiff delta, bool check_type, bool check_axis)
|
|
{
|
|
bool waypoint;
|
|
byte orig_type = 0;
|
|
Axis orig_axis = AXIS_X;
|
|
|
|
waypoint = IsTileType(tile, MP_RAILWAY);
|
|
|
|
if (waypoint) {
|
|
if (check_axis) orig_axis = GetWaypointAxis(tile);
|
|
} else {
|
|
if (check_type) orig_type = GetCustomStationSpecIndex(tile);
|
|
if (check_axis) orig_axis = GetRailStationAxis(tile);
|
|
}
|
|
|
|
while (true) {
|
|
TileIndex new_tile = TILE_ADD(tile, delta);
|
|
|
|
if (waypoint) {
|
|
if (!IsTileType(new_tile, MP_RAILWAY)) break;
|
|
if (!IsRailWaypoint(new_tile)) break;
|
|
if (check_axis && GetWaypointAxis(new_tile) != orig_axis) break;
|
|
} else {
|
|
if (!IsRailwayStationTile(new_tile)) break;
|
|
if (check_type && GetCustomStationSpecIndex(new_tile) != orig_type) break;
|
|
if (check_axis && GetRailStationAxis(new_tile) != orig_axis) break;
|
|
}
|
|
|
|
tile = new_tile;
|
|
}
|
|
return tile;
|
|
}
|
|
|
|
|
|
static uint32 GetPlatformInfoHelper(TileIndex tile, bool check_type, bool check_axis, bool centred)
|
|
{
|
|
int tx = TileX(tile);
|
|
int ty = TileY(tile);
|
|
int sx = TileX(FindRailStationEnd(tile, TileDiffXY(-1, 0), check_type, check_axis));
|
|
int sy = TileY(FindRailStationEnd(tile, TileDiffXY( 0, -1), check_type, check_axis));
|
|
int ex = TileX(FindRailStationEnd(tile, TileDiffXY( 1, 0), check_type, check_axis)) + 1;
|
|
int ey = TileY(FindRailStationEnd(tile, TileDiffXY( 0, 1), check_type, check_axis)) + 1;
|
|
Axis axis = IsTileType(tile, MP_RAILWAY) ? GetWaypointAxis(tile) : GetRailStationAxis(tile);
|
|
|
|
tx -= sx; ex -= sx;
|
|
ty -= sy; ey -= sy;
|
|
|
|
return GetPlatformInfo(axis, IsTileType(tile, MP_RAILWAY) ? 2 : GetStationGfx(tile), ex, ey, tx, ty, centred);
|
|
}
|
|
|
|
|
|
/* Station Resolver Functions */
|
|
static uint32 StationGetRandomBits(const ResolverObject *object)
|
|
{
|
|
const Station *st = object->u.station.st;
|
|
const TileIndex tile = object->u.station.tile;
|
|
return (st == NULL ? 0 : st->random_bits) | (tile == INVALID_TILE ? 0 : GetStationTileRandomBits(tile) << 16);
|
|
}
|
|
|
|
|
|
static uint32 StationGetTriggers(const ResolverObject *object)
|
|
{
|
|
const Station *st = object->u.station.st;
|
|
return st == NULL ? 0 : st->waiting_triggers;
|
|
}
|
|
|
|
|
|
static void StationSetTriggers(const ResolverObject *object, int triggers)
|
|
{
|
|
Station *st = (Station*)object->u.station.st;
|
|
assert(st != NULL);
|
|
st->waiting_triggers = triggers;
|
|
}
|
|
|
|
|
|
static uint32 StationGetVariable(const ResolverObject *object, byte variable, byte parameter, bool *available)
|
|
{
|
|
const Station *st = object->u.station.st;
|
|
TileIndex tile = object->u.station.tile;
|
|
|
|
if (st == NULL) {
|
|
/* Station does not exist, so we're in a purchase list */
|
|
switch (variable) {
|
|
case 0x40:
|
|
case 0x41:
|
|
case 0x46:
|
|
case 0x47:
|
|
case 0x49: return 0x2110000; /* Platforms, tracks & position */
|
|
case 0x42: return 0; /* Rail type (XXX Get current type from GUI?) */
|
|
case 0x43: return _current_player; /* Station owner */
|
|
case 0x44: return 2; /* PBS status */
|
|
case 0xFA: return _date; /* Build date */
|
|
}
|
|
|
|
*available = false;
|
|
return -1;
|
|
}
|
|
|
|
switch (variable) {
|
|
/* Calculated station variables */
|
|
case 0x40: return GetPlatformInfoHelper(tile, false, false, false);
|
|
case 0x41: return GetPlatformInfoHelper(tile, true, false, false);
|
|
case 0x42: /* Terrain and rail type */
|
|
return ((_opt.landscape == LT_HILLY && GetTileZ(tile) > _opt.snow_line) ? 4 : 0) |
|
|
(GetRailType(tile) << 8);
|
|
case 0x43: return st->owner; /* Station owner */
|
|
case 0x44: return 2; /* PBS status */
|
|
case 0x46: return GetPlatformInfoHelper(tile, false, false, true);
|
|
case 0x47: return GetPlatformInfoHelper(tile, true, false, true);
|
|
case 0x48: { /* Accepted cargo types */
|
|
CargoID cargo_type;
|
|
uint32 value = 0;
|
|
|
|
for (cargo_type = 0; cargo_type < NUM_CARGO; cargo_type++) {
|
|
if (HASBIT(st->goods[cargo_type].waiting_acceptance, 15)) SETBIT(value, cargo_type);
|
|
}
|
|
return value;
|
|
}
|
|
case 0x49: return GetPlatformInfoHelper(tile, false, true, false);
|
|
|
|
/* Variables which use the parameter */
|
|
case 0x60: return GB(st->goods[parameter].waiting_acceptance, 0, 12);
|
|
case 0x61: return st->goods[parameter].days_since_pickup;
|
|
case 0x62: return st->goods[parameter].rating;
|
|
case 0x63: return st->goods[parameter].enroute_time;
|
|
case 0x64: return st->goods[parameter].last_speed | (st->goods[parameter].last_age << 8);
|
|
|
|
/* General station properties */
|
|
case 0x82: return 50;
|
|
case 0x84: return st->string_id;
|
|
case 0x86: return 0;
|
|
case 0x8A: return st->had_vehicle_of_type;
|
|
case 0xF0: return st->facilities;
|
|
case 0xF1: return st->airport_type;
|
|
case 0xF2: return st->truck_stops->status;
|
|
case 0xF3: return st->bus_stops->status;
|
|
case 0xF6: return st->airport_flags;
|
|
case 0xF7: return st->airport_flags & 0xFF;
|
|
case 0xFA: return st->build_date;
|
|
}
|
|
|
|
/* Handle cargo variables (deprecated) */
|
|
if (variable >= 0x8C && variable <= 0xEC) {
|
|
const GoodsEntry *g = &st->goods[GB(variable - 0x8C, 3, 4)];
|
|
switch (GB(variable - 0x8C, 0, 3)) {
|
|
case 0: return g->waiting_acceptance;
|
|
case 1: return g->waiting_acceptance & 0xFF;
|
|
case 2: return g->days_since_pickup;
|
|
case 3: return g->rating;
|
|
case 4: return g->enroute_from;
|
|
case 5: return g->enroute_time;
|
|
case 6: return g->last_speed;
|
|
case 7: return g->last_age;
|
|
}
|
|
}
|
|
|
|
DEBUG(grf, 1)("Unhandled station property 0x%X", variable);
|
|
|
|
*available = false;
|
|
return -1;
|
|
}
|
|
|
|
|
|
static const SpriteGroup *StationResolveReal(const ResolverObject *object, const SpriteGroup *group)
|
|
{
|
|
const Station *st = object->u.station.st;
|
|
const StationSpec *statspec = object->u.station.statspec;
|
|
uint set;
|
|
|
|
uint cargo = 0;
|
|
CargoID cargo_type = CT_INVALID; /* XXX Pick the correct cargo type */
|
|
|
|
if (st == NULL || statspec->sclass == STAT_CLASS_WAYP) {
|
|
return group->g.real.loading[0];
|
|
}
|
|
|
|
if (cargo_type == CT_INVALID) {
|
|
for (cargo_type = 0; cargo_type < NUM_CARGO; cargo_type++) {
|
|
cargo += GB(st->goods[cargo_type].waiting_acceptance, 0, 12);
|
|
}
|
|
} else {
|
|
cargo = GB(st->goods[cargo_type].waiting_acceptance, 0, 12);
|
|
}
|
|
|
|
if (HASBIT(statspec->flags, 1)) cargo /= (st->trainst_w + st->trainst_h);
|
|
cargo = min(0xfff, cargo);
|
|
|
|
if (cargo > statspec->cargo_threshold) {
|
|
if (group->g.real.num_loading > 0) {
|
|
set = ((cargo - statspec->cargo_threshold) * group->g.real.num_loading) / (4096 - statspec->cargo_threshold);
|
|
return group->g.real.loading[set];
|
|
}
|
|
} else {
|
|
if (group->g.real.num_loaded > 0) {
|
|
set = (cargo * group->g.real.num_loaded) / (statspec->cargo_threshold + 1);
|
|
return group->g.real.loaded[set];
|
|
}
|
|
}
|
|
|
|
return group->g.real.loading[0];
|
|
}
|
|
|
|
|
|
static void NewStationResolver(ResolverObject *res, const StationSpec *statspec, const Station *st, TileIndex tile)
|
|
{
|
|
res->GetRandomBits = StationGetRandomBits;
|
|
res->GetTriggers = StationGetTriggers;
|
|
res->SetTriggers = StationSetTriggers;
|
|
res->GetVariable = StationGetVariable;
|
|
res->ResolveReal = StationResolveReal;
|
|
|
|
res->u.station.st = st;
|
|
res->u.station.statspec = statspec;
|
|
res->u.station.tile = tile;
|
|
|
|
res->callback = 0;
|
|
res->callback_param1 = 0;
|
|
res->callback_param2 = 0;
|
|
res->last_value = 0;
|
|
res->trigger = 0;
|
|
res->reseed = 0;
|
|
}
|
|
|
|
|
|
SpriteID GetCustomStationRelocation(const StationSpec *statspec, const Station *st, TileIndex tile)
|
|
{
|
|
const SpriteGroup *group;
|
|
ResolverObject object;
|
|
CargoID ctype = (st == NULL) ? GC_PURCHASE : GC_DEFAULT_NA;
|
|
|
|
NewStationResolver(&object, statspec, st, tile);
|
|
|
|
group = Resolve(statspec->spritegroup[ctype], &object);
|
|
if ((group == NULL || group->type != SGT_RESULT) && ctype != GC_DEFAULT_NA) {
|
|
group = Resolve(statspec->spritegroup[GC_DEFAULT_NA], &object);
|
|
}
|
|
if ((group == NULL || group->type != SGT_RESULT) && ctype != GC_DEFAULT) {
|
|
group = Resolve(statspec->spritegroup[GC_DEFAULT], &object);
|
|
}
|
|
|
|
if (group == NULL || group->type != SGT_RESULT) return 0;
|
|
|
|
return group->g.result.sprite - 0x42D;
|
|
}
|
|
|
|
|
|
SpriteID GetCustomStationGroundRelocation(const StationSpec *statspec, const Station *st, TileIndex tile)
|
|
{
|
|
const SpriteGroup *group;
|
|
ResolverObject object;
|
|
CargoID ctype = (st == NULL) ? GC_PURCHASE : GC_DEFAULT_NA;
|
|
|
|
NewStationResolver(&object, statspec, st, tile);
|
|
object.callback_param1 = 1; /* Indicate we are resolving the ground sprite */
|
|
|
|
group = Resolve(statspec->spritegroup[ctype], &object);
|
|
if ((group == NULL || group->type != SGT_RESULT) && ctype != GC_DEFAULT_NA) {
|
|
group = Resolve(statspec->spritegroup[GC_DEFAULT_NA], &object);
|
|
}
|
|
if ((group == NULL || group->type != SGT_RESULT) && ctype != GC_DEFAULT) {
|
|
group = Resolve(statspec->spritegroup[GC_DEFAULT], &object);
|
|
}
|
|
if ((group == NULL || group->type != SGT_RESULT)) {
|
|
group = Resolve(statspec->groundgroup, &object);
|
|
}
|
|
|
|
if (group == NULL || group->type != SGT_RESULT) return 0;
|
|
|
|
return group->g.result.sprite - 0x42D;
|
|
}
|
|
|
|
|
|
uint16 GetStationCallback(uint16 callback, uint32 param1, uint32 param2, const StationSpec *statspec, const Station *st, TileIndex tile)
|
|
{
|
|
const SpriteGroup *group;
|
|
ResolverObject object;
|
|
CargoID ctype = (st == NULL) ? GC_PURCHASE : GC_DEFAULT_NA;
|
|
|
|
NewStationResolver(&object, statspec, st, tile);
|
|
|
|
object.callback = callback;
|
|
object.callback_param1 = param1;
|
|
object.callback_param2 = param2;
|
|
|
|
group = Resolve(statspec->spritegroup[ctype], &object);
|
|
if ((group == NULL || group->type != SGT_CALLBACK) && ctype != GC_DEFAULT_NA) {
|
|
group = Resolve(statspec->spritegroup[GC_DEFAULT_NA], &object);
|
|
}
|
|
if ((group == NULL || group->type != SGT_CALLBACK) && ctype != GC_DEFAULT) {
|
|
group = Resolve(statspec->spritegroup[GC_DEFAULT], &object);
|
|
}
|
|
|
|
if (group == NULL || group->type != SGT_CALLBACK) return CALLBACK_FAILED;
|
|
|
|
return group->g.callback.result;
|
|
}
|
|
|
|
|
|
/**
|
|
* Allocate a StationSpec to a Station. This is called once per build operation.
|
|
* @param spec StationSpec to allocate.
|
|
* @param st Station to allocate it to.
|
|
* @param exec Whether to actually allocate the spec.
|
|
* @return Index within the Station's spec list, or -1 if the allocation failed.
|
|
*/
|
|
int AllocateSpecToStation(const StationSpec *statspec, Station *st, bool exec)
|
|
{
|
|
uint i;
|
|
|
|
if (statspec == NULL) return 0;
|
|
|
|
/* Check if this spec has already been allocated */
|
|
for (i = 1; i < st->num_specs && i < MAX_SPECLIST; i++) {
|
|
if (st->speclist[i].spec == statspec) return i;
|
|
}
|
|
|
|
for (i = 1; i < st->num_specs && i < MAX_SPECLIST; i++) {
|
|
if (st->speclist[i].spec == NULL && st->speclist[i].grfid == 0) break;
|
|
}
|
|
|
|
if (i == MAX_SPECLIST) return -1;
|
|
|
|
if (exec) {
|
|
if (i >= st->num_specs) {
|
|
st->num_specs = i + 1;
|
|
st->speclist = realloc(st->speclist, st->num_specs * sizeof(*st->speclist));
|
|
|
|
if (st->num_specs == 2) {
|
|
/* Initial allocation */
|
|
st->speclist[0].spec = NULL;
|
|
st->speclist[0].grfid = 0;
|
|
st->speclist[0].localidx = 0;
|
|
}
|
|
}
|
|
|
|
st->speclist[i].spec = statspec;
|
|
st->speclist[i].grfid = statspec->grfid;
|
|
st->speclist[i].localidx = statspec->localidx;
|
|
}
|
|
|
|
return i;
|
|
}
|
|
|
|
|
|
/** Deallocate a StationSpec from a Station. Called when removing a single station tile.
|
|
* @param st Station to work with.
|
|
* @param specindex Index of the custom station within the Station's spec list.
|
|
* @return Indicates whether the StationSpec was deallocated.
|
|
*/
|
|
void DeallocateSpecFromStation(Station* st, byte specindex)
|
|
{
|
|
/* specindex of 0 (default) is never freeable */
|
|
if (specindex == 0) return;
|
|
|
|
/* Check all tiles over the station to check if the specindex is still in use */
|
|
BEGIN_TILE_LOOP(tile, st->trainst_w, st->trainst_h, st->train_tile) {
|
|
if (IsTileType(tile, MP_STATION) && GetStationIndex(tile) == st->index && IsRailwayStation(tile) && GetCustomStationSpecIndex(tile) == specindex) {
|
|
return;
|
|
}
|
|
} END_TILE_LOOP(tile, st->trainst_w, st->trainst_h, st->train_tile)
|
|
|
|
/* This specindex is no longer in use, so deallocate it */
|
|
st->speclist[specindex].spec = NULL;
|
|
st->speclist[specindex].grfid = 0;
|
|
st->speclist[specindex].localidx = 0;
|
|
|
|
/* If this was the highest spec index, reallocate */
|
|
if (specindex == st->num_specs - 1) {
|
|
for (; st->speclist[st->num_specs - 1].grfid == 0 && st->num_specs > 1; st->num_specs--);
|
|
|
|
if (st->num_specs > 1) {
|
|
st->speclist = realloc(st->speclist, st->num_specs * sizeof(*st->speclist));
|
|
} else {
|
|
free(st->speclist);
|
|
st->num_specs = 0;
|
|
st->speclist = NULL;
|
|
}
|
|
}
|
|
}
|
|
|
|
/** Draw representation of a station tile for GUI purposes.
|
|
* @param x, y Position of image.
|
|
* @param dir Direction.
|
|
* @param railtype Rail type.
|
|
* @param sclass, station Type of station.
|
|
* @return True if the tile was drawn (allows for fallback to default graphic)
|
|
*/
|
|
bool DrawStationTile(int x, int y, RailType railtype, Axis axis, StationClassID sclass, uint station)
|
|
{
|
|
const StationSpec *statspec;
|
|
const DrawTileSprites *sprites;
|
|
const DrawTileSeqStruct *seq;
|
|
const RailtypeInfo *rti = GetRailTypeInfo(railtype);
|
|
SpriteID relocation;
|
|
PalSpriteID image;
|
|
PalSpriteID colourmod = SPRITE_PALETTE(PLAYER_SPRITE_COLOR(_local_player));
|
|
uint tile = 2;
|
|
|
|
statspec = GetCustomStationSpec(sclass, station);
|
|
if (statspec == NULL) return false;
|
|
|
|
relocation = GetCustomStationRelocation(statspec, NULL, INVALID_TILE);
|
|
|
|
if (HASBIT(statspec->callbackmask, CBM_CUSTOM_LAYOUT)) {
|
|
uint16 callback = GetStationCallback(CBID_STATION_SPRITE_LAYOUT, 0x2110000, 0, statspec, NULL, INVALID_TILE);
|
|
if (callback != CALLBACK_FAILED) tile = callback;
|
|
}
|
|
|
|
if (statspec->renderdata == NULL) {
|
|
sprites = GetStationTileLayout(tile + axis);
|
|
} else {
|
|
sprites = &statspec->renderdata[(tile < statspec->tiles) ? tile + axis : axis];
|
|
}
|
|
|
|
image = sprites->ground_sprite;
|
|
if (HASBIT(image, 31)) {
|
|
CLRBIT(image, 31);
|
|
image += GetCustomStationGroundRelocation(statspec, NULL, INVALID_TILE);
|
|
image += rti->custom_ground_offset;
|
|
} else {
|
|
image += rti->total_offset;
|
|
}
|
|
|
|
if (image & PALETTE_MODIFIER_COLOR) image &= SPRITE_MASK;
|
|
DrawSprite(image, x, y);
|
|
|
|
foreach_draw_tile_seq(seq, sprites->seq) {
|
|
Point pt;
|
|
image = seq->image;
|
|
if (HASBIT(image, 30)) {
|
|
CLRBIT(image, 30);
|
|
image += rti->total_offset;
|
|
} else {
|
|
image += relocation;
|
|
}
|
|
|
|
if ((byte)seq->delta_z != 0x80) {
|
|
pt = RemapCoords(seq->delta_x, seq->delta_y, seq->delta_z);
|
|
DrawSprite((image & SPRITE_MASK) | colourmod, x + pt.x, y + pt.y);
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/* Check if a rail station tile is traversable.
|
|
* XXX This could be cached (during build) in the map array to save on all the dereferencing */
|
|
bool IsStationTileBlocked(TileIndex tile)
|
|
{
|
|
const Station *st;
|
|
const StationSpec *statspec;
|
|
uint specindex;
|
|
|
|
if (!IsCustomStationSpecIndex(tile)) return false;
|
|
|
|
st = GetStationByTile(tile);
|
|
specindex = GetCustomStationSpecIndex(tile);
|
|
if (specindex >= st->num_specs) return false;
|
|
|
|
statspec = st->speclist[specindex].spec;
|
|
if (statspec == NULL) return false;
|
|
|
|
return HASBIT(statspec->blocked, GetStationGfx(tile));
|
|
}
|
|
|
|
/* Check if a rail station tile is electrifiable.
|
|
* XXX This could be cached (during build) in the map array to save on all the dereferencing */
|
|
bool IsStationTileElectrifiable(TileIndex tile)
|
|
{
|
|
const Station *st;
|
|
const StationSpec *statspec;
|
|
uint specindex;
|
|
|
|
if (!IsCustomStationSpecIndex(tile)) return true;
|
|
|
|
st = GetStationByTile(tile);
|
|
specindex = GetCustomStationSpecIndex(tile);
|
|
if (specindex >= st->num_specs) return true;
|
|
|
|
statspec = st->speclist[specindex].spec;
|
|
if (statspec == NULL) return true;
|
|
|
|
return HASBIT(statspec->pylons, GetStationGfx(tile)) || !HASBIT(statspec->wires, GetStationGfx(tile));
|
|
}
|