(svn r13729) -Fix: assumption that non-north tiles of a house do not have the 1x1 building bit set was flawed with some NewGRFs. This caused the amount of houses to differ, which causes the town radii to differ, which causes desyncs when towns are expanded.
/* $Id$ */
/** @file build_vehicle_gui.cpp GUI for building vehicles. */
#include "stdafx.h"
#include "openttd.h"
#include "train.h"
#include "roadveh.h"
#include "ship.h"
#include "aircraft.h"
#include "debug.h"
#include "gui.h"
#include "articulated_vehicles.h"
#include "textbuf_gui.h"
#include "command_func.h"
#include "player_func.h"
#include "airport.h"
#include "vehicle_gui.h"
#include "newgrf_engine.h"
#include "cargotype.h"
#include "group.h"
#include "road_map.h"
#include "strings_func.h"
#include "window_func.h"
#include "date_func.h"
#include "vehicle_func.h"
#include "settings_type.h"
#include "gfx_func.h"
#include "widgets/dropdown_func.h"
#include "string_func.h"
#include "window_gui.h"
#include "engine_gui.h"
#include "table/sprites.h"
#include "table/strings.h"
enum BuildVehicleWidgets {
BUILD_VEHICLE_WIDGET_CLOSEBOX = 0,
BUILD_VEHICLE_WIDGET_CAPTION,
BUILD_VEHICLE_WIDGET_SORT_ASSENDING_DESCENDING,
BUILD_VEHICLE_WIDGET_SORT_DROPDOWN,
BUILD_VEHICLE_WIDGET_LIST,
BUILD_VEHICLE_WIDGET_SCROLLBAR,
BUILD_VEHICLE_WIDGET_PANEL,
BUILD_VEHICLE_WIDGET_BUILD,
BUILD_VEHICLE_WIDGET_RENAME,
BUILD_VEHICLE_WIDGET_RESIZE,
BUILD_VEHICLE_WIDGET_END
};
static const Widget _build_vehicle_widgets[] = {
{ WWT_CLOSEBOX, RESIZE_NONE, 14, 0, 10, 0, 13, STR_00C5, STR_018B_CLOSE_WINDOW },
{ WWT_CAPTION, RESIZE_RIGHT, 14, 11, 239, 0, 13, 0x0, STR_018C_WINDOW_TITLE_DRAG_THIS },
{ WWT_PUSHTXTBTN, RESIZE_NONE, 14, 0, 80, 14, 25, STR_SORT_BY, STR_SORT_ORDER_TIP},
{ WWT_DROPDOWN, RESIZE_RIGHT, 14, 81, 239, 14, 25, 0x0, STR_SORT_CRITERIA_TIP},
{ WWT_MATRIX, RESIZE_RB, 14, 0, 227, 26, 39, 0x101, STR_NULL },
{ WWT_SCROLLBAR, RESIZE_LRB, 14, 228, 239, 26, 39, 0x0, STR_0190_SCROLL_BAR_SCROLLS_LIST },
{ WWT_PANEL, RESIZE_RTB, 14, 0, 239, 40, 161, 0x0, STR_NULL },
{ WWT_PUSHTXTBTN, RESIZE_TB, 14, 0, 114, 162, 173, 0x0, STR_NULL },
{ WWT_PUSHTXTBTN, RESIZE_RTB, 14, 115, 227, 162, 173, 0x0, STR_NULL },
{ WWT_RESIZEBOX, RESIZE_LRTB, 14, 228, 239, 162, 173, 0x0, STR_RESIZE_BUTTON },
{ WIDGETS_END},
};
static bool _internal_sort_order; // descending/ascending
static byte _last_sort_criteria[] = {0, 0, 0, 0};
static bool _last_sort_order[] = {false, false, false, false};
static int CDECL EngineNumberSorter(const void *a, const void *b)
{
const EngineID va = *(const EngineID*)a;
const EngineID vb = *(const EngineID*)b;
int r = va - vb;
return _internal_sort_order ? -r : r;
}
static int CDECL EngineIntroDateSorter(const void *a, const void *b)
{
const int va = GetEngine(*(const EngineID*)a)->intro_date;
const int vb = GetEngine(*(const EngineID*)b)->intro_date;
const int r = va - vb;
if (r == 0) {
/* Use EngineID to sort instead since we want consistent sorting */
return EngineNumberSorter(a, b);
}
return _internal_sort_order ? -r : r;
}
static int CDECL EngineNameSorter(const void *a, const void *b)
{
static EngineID last_engine[2] = { INVALID_ENGINE, INVALID_ENGINE };
static char last_name[2][64] = { "\0", "\0" };
const EngineID va = *(const EngineID*)a;
const EngineID vb = *(const EngineID*)b;
int r;
if (va != last_engine[0]) {
last_engine[0] = va;
SetDParam(0, va);
GetString(last_name[0], STR_ENGINE_NAME, lastof(last_name[0]));
}
if (vb != last_engine[1]) {
last_engine[1] = vb;
SetDParam(0, vb);
GetString(last_name[1], STR_ENGINE_NAME, lastof(last_name[1]));
}
r = strcmp(last_name[0], last_name[1]); // sort by name
if (r == 0) {
/* Use EngineID to sort instead since we want consistent sorting */
return EngineNumberSorter(a, b);
}
return _internal_sort_order ? -r : r;
}
static int CDECL EngineReliabilitySorter(const void *a, const void *b)
{
const int va = GetEngine(*(const EngineID*)a)->reliability;
const int vb = GetEngine(*(const EngineID*)b)->reliability;
const int r = va - vb;
if (r == 0) {
/* Use EngineID to sort instead since we want consistent sorting */
return EngineNumberSorter(a, b);
}
return _internal_sort_order ? -r : r;
}
/* Train sorting functions */
static int CDECL TrainEngineCostSorter(const void *a, const void *b)
{
int va = RailVehInfo(*(const EngineID*)a)->base_cost;
int vb = RailVehInfo(*(const EngineID*)b)->base_cost;
int r = va - vb;
return _internal_sort_order ? -r : r;
}
static int CDECL TrainEngineSpeedSorter(const void *a, const void *b)
{
int va = RailVehInfo(*(const EngineID*)a)->max_speed;
int vb = RailVehInfo(*(const EngineID*)b)->max_speed;
int r = va - vb;
return _internal_sort_order ? -r : r;
}
static int CDECL TrainEnginePowerSorter(const void *a, const void *b)
{
const RailVehicleInfo *rvi_a = RailVehInfo(*(const EngineID*)a);
const RailVehicleInfo *rvi_b = RailVehInfo(*(const EngineID*)b);
int va = rvi_a->power;
int vb = rvi_b->power;
int r = va - vb;
return _internal_sort_order ? -r : r;
}
static int CDECL TrainEngineRunningCostSorter(const void *a, const void *b)
{
const RailVehicleInfo *rvi_a = RailVehInfo(*(const EngineID*)a);
const RailVehicleInfo *rvi_b = RailVehInfo(*(const EngineID*)b);
Money va = rvi_a->running_cost * GetPriceByIndex(rvi_a->running_cost_class) * (rvi_a->railveh_type == RAILVEH_MULTIHEAD ? 2 : 1);
Money vb = rvi_b->running_cost * GetPriceByIndex(rvi_b->running_cost_class) * (rvi_b->railveh_type == RAILVEH_MULTIHEAD ? 2 : 1);
int r = ClampToI32(va - vb);
return _internal_sort_order ? -r : r;
}
static int CDECL TrainEnginePowerVsRunningCostSorter(const void *a, const void *b)
{
const RailVehicleInfo *rvi_a = RailVehInfo(*(const EngineID*)a);
const RailVehicleInfo *rvi_b = RailVehInfo(*(const EngineID*)b);
/* Here we are using a few tricks to get the right sort.
* We want power/running cost, but since we usually got higher running cost than power and we store the result in an int,
* we will actually calculate cunning cost/power (to make it more than 1).
* Because of this, the return value have to be reversed as well and we return b - a instead of a - b.
* Another thing is that both power and running costs should be doubled for multiheaded engines.
* Since it would be multipling with 2 in both numerator and denumerator, it will even themselves out and we skip checking for multiheaded. */
Money va = (rvi_a->running_cost * GetPriceByIndex(rvi_a->running_cost_class)) / max(1U, (uint)rvi_a->power);
Money vb = (rvi_b->running_cost * GetPriceByIndex(rvi_b->running_cost_class)) / max(1U, (uint)rvi_b->power);
int r = ClampToI32(vb - va);
return _internal_sort_order ? -r : r;
}
static int CDECL TrainEngineNumberSorter(const void *a, const void *b)
{
const EngineID va = *(const EngineID*)a;
const EngineID vb = *(const EngineID*)b;
int r = ListPositionOfEngine(va) - ListPositionOfEngine(vb);
return _internal_sort_order ? -r : r;
}
static int CDECL TrainEngineCapacitySorter(const void *a, const void *b)
{
int va = RailVehInfo(*(const EngineID*)a)->capacity;
int vb = RailVehInfo(*(const EngineID*)b)->capacity;
int r = va - vb;
if (r == 0) {
/* Use EngineID to sort instead since we want consistent sorting */
return EngineNumberSorter(a, b);
}
return _internal_sort_order ? -r : r;
}
static int CDECL TrainEnginesThenWagonsSorter(const void *a, const void *b)
{
EngineID va = *(const EngineID*)a;
EngineID vb = *(const EngineID*)b;
int val_a = (RailVehInfo(va)->railveh_type == RAILVEH_WAGON ? 1 : 0);
int val_b = (RailVehInfo(vb)->railveh_type == RAILVEH_WAGON ? 1 : 0);
int r = val_a - val_b;
/* Use EngineID to sort instead since we want consistent sorting */
if (r == 0) return EngineNumberSorter(a, b);
return _internal_sort_order ? -r : r;
}
/* Road vehicle sorting functions */
static int CDECL RoadVehEngineCostSorter(const void *a, const void *b)
{
int va = RoadVehInfo(*(const EngineID*)a)->base_cost;
int vb = RoadVehInfo(*(const EngineID*)b)->base_cost;
int r = va - vb;
return _internal_sort_order ? -r : r;
}
static int CDECL RoadVehEngineSpeedSorter(const void *a, const void *b)
{
int va = RoadVehInfo(*(const EngineID*)a)->max_speed;
int vb = RoadVehInfo(*(const EngineID*)b)->max_speed;
int r = va - vb;
return _internal_sort_order ? -r : r;
}
static int CDECL RoadVehEngineRunningCostSorter(const void *a, const void *b)
{
const RoadVehicleInfo *rvi_a = RoadVehInfo(*(const EngineID*)a);
const RoadVehicleInfo *rvi_b = RoadVehInfo(*(const EngineID*)b);
Money va = rvi_a->running_cost * GetPriceByIndex(rvi_a->running_cost_class);
Money vb = rvi_b->running_cost * GetPriceByIndex(rvi_b->running_cost_class);
int r = ClampToI32(va - vb);
if (r == 0) {
/* Use EngineID to sort instead since we want consistent sorting */
return EngineNumberSorter(a, b);
}
return _internal_sort_order ? -r : r;
}
static int CDECL RoadVehEngineCapacitySorter(const void *a, const void *b)
{
int va = RoadVehInfo(*(const EngineID*)a)->capacity;
int vb = RoadVehInfo(*(const EngineID*)b)->capacity;
int r = va - vb;
if (r == 0) {
/* Use EngineID to sort instead since we want consistent sorting */
return EngineNumberSorter(a, b);
}
return _internal_sort_order ? -r : r;
}
/* Road vehicle sorting functions */
static int CDECL ShipEngineCostSorter(const void *a, const void *b)
{
int va = ShipVehInfo(*(const EngineID*)a)->base_cost;
int vb = ShipVehInfo(*(const EngineID*)b)->base_cost;
int r = va - vb;
return _internal_sort_order ? -r : r;
}
static int CDECL ShipEngineSpeedSorter(const void *a, const void *b)
{
int va = ShipVehInfo(*(const EngineID*)a)->max_speed;
int vb = ShipVehInfo(*(const EngineID*)b)->max_speed;
int r = va - vb;
return _internal_sort_order ? -r : r;
}
static int CDECL ShipEngineRunningCostSorter(const void *a, const void *b)
{
const int va = ShipVehInfo(*(const EngineID*)a)->running_cost;
const int vb = ShipVehInfo(*(const EngineID*)b)->running_cost;
const int r = va - vb;
if (r == 0) {
/* Use EngineID to sort instead since we want consistent sorting */
return EngineNumberSorter(a, b);
}
return _internal_sort_order ? -r : r;
}
static int CDECL ShipEngineCapacitySorter(const void *a, const void *b)
{
int va = ShipVehInfo(*(const EngineID*)a)->capacity;
int vb = ShipVehInfo(*(const EngineID*)b)->capacity;
int r = va - vb;
if (r == 0) {
/* Use EngineID to sort instead since we want consistent sorting */
return EngineNumberSorter(a, b);
}
return _internal_sort_order ? -r : r;
}
/* Aircraft sorting functions */
static int CDECL AircraftEngineCostSorter(const void *a, const void *b)
{
const int va = AircraftVehInfo(*(const EngineID*)a)->base_cost;
const int vb = AircraftVehInfo(*(const EngineID*)b)->base_cost;
int r = va - vb;
return _internal_sort_order ? -r : r;
}
static int CDECL AircraftEngineSpeedSorter(const void *a, const void *b)
{
const int va = AircraftVehInfo(*(const EngineID*)a)->max_speed;
const int vb = AircraftVehInfo(*(const EngineID*)b)->max_speed;
const int r = va - vb;
if (r == 0) {
/* Use EngineID to sort instead since we want consistent sorting */
return EngineNumberSorter(a, b);
}
return _internal_sort_order ? -r : r;
}
static int CDECL AircraftEngineRunningCostSorter(const void *a, const void *b)
{
const int va = AircraftVehInfo(*(const EngineID*)a)->running_cost;
const int vb = AircraftVehInfo(*(const EngineID*)b)->running_cost;
const int r = va - vb;
if (r == 0) {
/* Use EngineID to sort instead since we want consistent sorting */
return EngineNumberSorter(a, b);
}
return _internal_sort_order ? -r : r;
}
static int CDECL AircraftEngineCargoSorter(const void *a, const void *b)
{
int va = AircraftVehInfo(*(const EngineID*)a)->passenger_capacity;
int vb = AircraftVehInfo(*(const EngineID*)b)->passenger_capacity;
int r = va - vb;
if (r == 0) {
/* The planes has the same passenger capacity. Check mail capacity instead */
va = AircraftVehInfo(*(const EngineID*)a)->mail_capacity;
vb = AircraftVehInfo(*(const EngineID*)b)->mail_capacity;
r = va - vb;
if (r == 0) {
/* Use EngineID to sort instead since we want consistent sorting */
return EngineNumberSorter(a, b);
}
}
return _internal_sort_order ? -r : r;
}
static EngList_SortTypeFunction * const _sorter[][10] = {{
/* Trains */
&TrainEngineNumberSorter,
&TrainEngineCostSorter,
&TrainEngineSpeedSorter,
&TrainEnginePowerSorter,
&EngineIntroDateSorter,
&EngineNameSorter,
&TrainEngineRunningCostSorter,
&TrainEnginePowerVsRunningCostSorter,
&EngineReliabilitySorter,
&TrainEngineCapacitySorter,
}, {
/* Road vehicles */
&EngineNumberSorter,
&RoadVehEngineCostSorter,
&RoadVehEngineSpeedSorter,
&EngineIntroDateSorter,
&EngineNameSorter,
&RoadVehEngineRunningCostSorter,
&EngineReliabilitySorter,
&RoadVehEngineCapacitySorter,
}, {
/* Ships */
&EngineNumberSorter,
&ShipEngineCostSorter,
&ShipEngineSpeedSorter,
&EngineIntroDateSorter,
&EngineNameSorter,
&ShipEngineRunningCostSorter,
&EngineReliabilitySorter,
&ShipEngineCapacitySorter,
}, {
/* Aircraft */
&EngineNumberSorter,
&AircraftEngineCostSorter,
&AircraftEngineSpeedSorter,
&EngineIntroDateSorter,
&EngineNameSorter,
&AircraftEngineRunningCostSorter,
&EngineReliabilitySorter,
&AircraftEngineCargoSorter,
}};
static const StringID _sort_listing[][11] = {{
/* Trains */
STR_ENGINE_SORT_ENGINE_ID,
STR_ENGINE_SORT_COST,
STR_SORT_BY_MAX_SPEED,
STR_ENGINE_SORT_POWER,
STR_ENGINE_SORT_INTRO_DATE,
STR_SORT_BY_DROPDOWN_NAME,
STR_ENGINE_SORT_RUNNING_COST,
STR_ENGINE_SORT_POWER_VS_RUNNING_COST,
STR_SORT_BY_RELIABILITY,
STR_ENGINE_SORT_CARGO_CAPACITY,
INVALID_STRING_ID
}, {
/* Road vehicles */
STR_ENGINE_SORT_ENGINE_ID,
STR_ENGINE_SORT_COST,
STR_SORT_BY_MAX_SPEED,
STR_ENGINE_SORT_INTRO_DATE,
STR_SORT_BY_DROPDOWN_NAME,
STR_ENGINE_SORT_RUNNING_COST,
STR_SORT_BY_RELIABILITY,
STR_ENGINE_SORT_CARGO_CAPACITY,
INVALID_STRING_ID
}, {
/* Ships */
STR_ENGINE_SORT_ENGINE_ID,
STR_ENGINE_SORT_COST,
STR_SORT_BY_MAX_SPEED,
STR_ENGINE_SORT_INTRO_DATE,
STR_SORT_BY_DROPDOWN_NAME,
STR_ENGINE_SORT_RUNNING_COST,
STR_SORT_BY_RELIABILITY,
STR_ENGINE_SORT_CARGO_CAPACITY,
INVALID_STRING_ID
}, {
/* Aircraft */
STR_ENGINE_SORT_ENGINE_ID,
STR_ENGINE_SORT_COST,
STR_SORT_BY_MAX_SPEED,
STR_ENGINE_SORT_INTRO_DATE,
STR_SORT_BY_DROPDOWN_NAME,
STR_ENGINE_SORT_RUNNING_COST,
STR_SORT_BY_RELIABILITY,
STR_ENGINE_SORT_CARGO_CAPACITY,
INVALID_STRING_ID
}};
static int DrawCargoCapacityInfo(int x, int y, EngineID engine, VehicleType type, bool refittable)
{
uint16 *cap = GetCapacityOfArticulatedParts(engine, type);
for (uint c = 0; c < NUM_CARGO; c++) {
if (cap[c] == 0) continue;
SetDParam(0, c);
SetDParam(1, cap[c]);
SetDParam(2, refittable ? STR_9842_REFITTABLE : STR_EMPTY);
DrawString(x, y, STR_PURCHASE_INFO_CAPACITY, TC_FROMSTRING);
y += 10;
/* Only show as refittable once */
refittable = false;
}
return y;
}
/* Draw rail wagon specific details */
static int DrawRailWagonPurchaseInfo(int x, int y, EngineID engine_number, const RailVehicleInfo *rvi)
{
/* Purchase cost */
SetDParam(0, (GetEngineProperty(engine_number, 0x17, rvi->base_cost) * _price.build_railwagon) >> 8);
DrawString(x, y, STR_PURCHASE_INFO_COST, TC_FROMSTRING);
y += 10;
/* Wagon weight - (including cargo) */
uint weight = GetEngineProperty(engine_number, 0x16, rvi->weight);
SetDParam(0, weight);
SetDParam(1, (GetCargo(rvi->cargo_type)->weight * GetEngineProperty(engine_number, 0x14, rvi->capacity) >> 4) + weight);
DrawString(x, y, STR_PURCHASE_INFO_WEIGHT_CWEIGHT, TC_FROMSTRING);
y += 10;
/* Wagon speed limit, displayed if above zero */
if (_settings_game.vehicle.wagon_speed_limits) {
uint max_speed = GetEngineProperty(engine_number, 0x09, rvi->max_speed);
if (max_speed > 0) {
SetDParam(0, max_speed * 10 / 16);
DrawString(x, y, STR_PURCHASE_INFO_SPEED, TC_FROMSTRING);
y += 10;
}
}
/* Running cost */
if (rvi->running_cost_class != 0xFF) {
SetDParam(0, GetEngineProperty(engine_number, 0x0D, rvi->running_cost) * GetPriceByIndex(rvi->running_cost_class) >> 8);
DrawString(x, y, STR_PURCHASE_INFO_RUNNINGCOST, TC_FROMSTRING);
y += 10;
}
return y;
}
/* Draw locomotive specific details */
static int DrawRailEnginePurchaseInfo(int x, int y, EngineID engine_number, const RailVehicleInfo *rvi)
{
int multihead = (rvi->railveh_type == RAILVEH_MULTIHEAD ? 1 : 0);
uint weight = GetEngineProperty(engine_number, 0x16, rvi->weight);
/* Purchase Cost - Engine weight */
SetDParam(0, GetEngineProperty(engine_number, 0x17, rvi->base_cost) * (_price.build_railvehicle >> 3) >> 5);
SetDParam(1, weight << multihead);
DrawString(x, y, STR_PURCHASE_INFO_COST_WEIGHT, TC_FROMSTRING);
y += 10;
/* Max speed - Engine power */
SetDParam(0, GetEngineProperty(engine_number, 0x09, rvi->max_speed) * 10 / 16);
SetDParam(1, GetEngineProperty(engine_number, 0x0B, rvi->power));
DrawString(x, y, STR_PURCHASE_INFO_SPEED_POWER, TC_FROMSTRING);
y += 10;
/* Max tractive effort - not applicable if old acceleration or maglev */
if (_settings_game.vehicle.realistic_acceleration && rvi->railtype != RAILTYPE_MAGLEV) {
SetDParam(0, ((weight << multihead) * 10 * GetEngineProperty(engine_number, 0x1F, rvi->tractive_effort)) / 256);
DrawString(x, y, STR_PURCHASE_INFO_MAX_TE, TC_FROMSTRING);
y += 10;
}
/* Running cost */
if (rvi->running_cost_class != 0xFF) {
SetDParam(0, GetEngineProperty(engine_number, 0x0D, rvi->running_cost) * GetPriceByIndex(rvi->running_cost_class) >> 8);
DrawString(x, y, STR_PURCHASE_INFO_RUNNINGCOST, TC_FROMSTRING);
y += 10;
}
/* Powered wagons power - Powered wagons extra weight */
if (rvi->pow_wag_power != 0) {
SetDParam(0, rvi->pow_wag_power);
SetDParam(1, rvi->pow_wag_weight);
DrawString(x, y, STR_PURCHASE_INFO_PWAGPOWER_PWAGWEIGHT, TC_FROMSTRING);
y += 10;
};
return y;
}
/* Draw road vehicle specific details */
static int DrawRoadVehPurchaseInfo(int x, int y, EngineID engine_number, const RoadVehicleInfo *rvi)
{
bool refittable = (EngInfo(engine_number)->refit_mask != 0);
/* Purchase cost - Max speed */
SetDParam(0, GetEngineProperty(engine_number, 0x11, rvi->base_cost) * (_price.roadveh_base >> 3) >> 5);
SetDParam(1, rvi->max_speed * 10 / 32);
DrawString(x, y, STR_PURCHASE_INFO_COST_SPEED, TC_FROMSTRING);
y += 10;
/* Running cost */
SetDParam(0, rvi->running_cost * GetPriceByIndex(rvi->running_cost_class) >> 8);
DrawString(x, y, STR_PURCHASE_INFO_RUNNINGCOST, TC_FROMSTRING);
y += 10;
/* Cargo type + capacity */
return DrawCargoCapacityInfo(x, y, engine_number, VEH_ROAD, refittable);
}
/* Draw ship specific details */
static int DrawShipPurchaseInfo(int x, int y, EngineID engine_number, const ShipVehicleInfo *svi)
{
/* Purchase cost - Max speed */
SetDParam(0, GetEngineProperty(engine_number, 0x0A, svi->base_cost) * (_price.ship_base >> 3) >> 5);
SetDParam(1, GetEngineProperty(engine_number, 0x0B, svi->max_speed) * 10 / 32);
DrawString(x, y, STR_PURCHASE_INFO_COST_SPEED, TC_FROMSTRING);
y += 10;
/* Cargo type + capacity */
SetDParam(0, svi->cargo_type);
SetDParam(1, GetEngineProperty(engine_number, 0x0D, svi->capacity));
SetDParam(2, svi->refittable ? STR_9842_REFITTABLE : STR_EMPTY);
DrawString(x, y, STR_PURCHASE_INFO_CAPACITY, TC_FROMSTRING);
y += 10;
/* Running cost */
SetDParam(0, GetEngineProperty(engine_number, 0x0F, svi->running_cost) * _price.ship_running >> 8);
DrawString(x, y, STR_PURCHASE_INFO_RUNNINGCOST, TC_FROMSTRING);
y += 10;
return y;
}
/* Draw aircraft specific details */
static int DrawAircraftPurchaseInfo(int x, int y, EngineID engine_number, const AircraftVehicleInfo *avi)
{
CargoID cargo;
/* Purchase cost - Max speed */
SetDParam(0, GetEngineProperty(engine_number, 0x0B, avi->base_cost) * (_price.aircraft_base >> 3) >> 5);
SetDParam(1, avi->max_speed * 10 / 16);
DrawString(x, y, STR_PURCHASE_INFO_COST_SPEED, TC_FROMSTRING);
y += 10;
/* Cargo capacity */
cargo = FindFirstRefittableCargo(engine_number);
if (cargo == CT_INVALID || cargo == CT_PASSENGERS) {
SetDParam(0, avi->passenger_capacity);
SetDParam(1, avi->mail_capacity);
DrawString(x, y, STR_PURCHASE_INFO_AIRCRAFT_CAPACITY, TC_FROMSTRING);
} else {
/* Note, if the default capacity is selected by the refit capacity
* callback, then the capacity shown is likely to be incorrect. */
SetDParam(0, cargo);
SetDParam(1, AircraftDefaultCargoCapacity(cargo, avi));
SetDParam(2, STR_9842_REFITTABLE);
DrawString(x, y, STR_PURCHASE_INFO_CAPACITY, TC_FROMSTRING);
}
y += 10;
/* Running cost */
SetDParam(0, GetEngineProperty(engine_number, 0x0E, avi->running_cost) * _price.aircraft_running >> 8);
DrawString(x, y, STR_PURCHASE_INFO_RUNNINGCOST, TC_FROMSTRING);
y += 10;
return y;
}
/**
* Draw the purchase info details of a vehicle at a given location.
* @param x,y location where to draw the info
* @param w how wide are the text allowed to be (size of widget/window to Draw in)
* @param engine_number the engine of which to draw the info of
* @return y after drawing all the text
*/
int DrawVehiclePurchaseInfo(int x, int y, uint w, EngineID engine_number)
{
const Engine *e = GetEngine(engine_number);
YearMonthDay ymd;
ConvertDateToYMD(e->intro_date, &ymd);
bool refitable = false;
switch (e->type) {
default: NOT_REACHED();
case VEH_TRAIN: {
const RailVehicleInfo *rvi = RailVehInfo(engine_number);
uint capacity = GetEngineProperty(engine_number, 0x14, rvi->capacity);
refitable = (EngInfo(engine_number)->refit_mask != 0) && (capacity > 0);
if (rvi->railveh_type == RAILVEH_WAGON) {
y = DrawRailWagonPurchaseInfo(x, y, engine_number, rvi);
} else {
y = DrawRailEnginePurchaseInfo(x, y, engine_number, rvi);
}
/* Cargo type + capacity, or N/A */
int new_y = DrawCargoCapacityInfo(x, y, engine_number, VEH_TRAIN, refitable);
if (new_y == y) {
SetDParam(0, CT_INVALID);
SetDParam(2, STR_EMPTY);
DrawString(x, y, STR_PURCHASE_INFO_CAPACITY, TC_FROMSTRING);
y += 10;
} else {
y = new_y;
}
break;
}
case VEH_ROAD:
y = DrawRoadVehPurchaseInfo(x, y, engine_number, RoadVehInfo(engine_number));
refitable = true;
break;
case VEH_SHIP: {
const ShipVehicleInfo *svi = ShipVehInfo(engine_number);
y = DrawShipPurchaseInfo(x, y, engine_number, svi);
refitable = svi->refittable;
} break;
case VEH_AIRCRAFT:
y = DrawAircraftPurchaseInfo(x, y, engine_number, AircraftVehInfo(engine_number));
refitable = true;
break;
}
/* Draw details, that applies to all types except rail wagons */
if (e->type != VEH_TRAIN || RailVehInfo(engine_number)->railveh_type != RAILVEH_WAGON) {
/* Design date - Life length */
SetDParam(0, ymd.year);
SetDParam(1, e->lifelength);
DrawString(x, y, STR_PURCHASE_INFO_DESIGNED_LIFE, TC_FROMSTRING);
y += 10;
/* Reliability */
SetDParam(0, e->reliability * 100 >> 16);
DrawString(x, y, STR_PURCHASE_INFO_RELIABILITY, TC_FROMSTRING);
y += 10;
}
/* Additional text from NewGRF */
y += ShowAdditionalText(x, y, w, engine_number);
if (refitable) y += ShowRefitOptionsList(x, y, w, engine_number);
return y;
}
static void DrawVehicleEngine(VehicleType type, int x, int y, EngineID engine, SpriteID pal)
{
switch (type) {
case VEH_TRAIN: DrawTrainEngine( x, y, engine, pal); break;
case VEH_ROAD: DrawRoadVehEngine( x, y, engine, pal); break;
case VEH_SHIP: DrawShipEngine( x, y, engine, pal); break;
case VEH_AIRCRAFT: DrawAircraftEngine(x, y, engine, pal); break;
default: NOT_REACHED();
}
}
/** Engine drawing loop
* @param type Type of vehicle (VEH_*)
* @param x,y Where should the list start
* @param eng_list What engines to draw
* @param min where to start in the list
* @param max where in the list to end
* @param selected_id what engine to highlight as selected, if any
* @param count_location Offset to print the engine count (used by autoreplace). 0 means it's off
*/
void DrawEngineList(VehicleType type, int x, int y, const GUIEngineList *eng_list, uint16 min, uint16 max, EngineID selected_id, int count_location, GroupID selected_group)
{
byte step_size = GetVehicleListHeight(type);
byte x_offset = 0;
byte y_offset = 0;
assert(max <= eng_list->Length());
switch (type) {
case VEH_TRAIN:
x++; // train and road vehicles use the same offset, except trains are one more pixel to the right
/* Fallthough */
case VEH_ROAD:
x += 26;
x_offset = 30;
y += 2;
y_offset = 4;
break;
case VEH_SHIP:
x += 35;
x_offset = 40;
y += 7;
y_offset = 3;
break;
case VEH_AIRCRAFT:
x += 27;
x_offset = 33;
y += 7;
y_offset = 3;
break;
default: NOT_REACHED();
}
for (; min < max; min++, y += step_size) {
const EngineID engine = (*eng_list)[min];
/* Note: num_engines is only used in the autoreplace GUI, so it is correct to use _local_player here. */
const uint num_engines = GetGroupNumEngines(_local_player, selected_group, engine);
SetDParam(0, engine);
DrawString(x + x_offset, y, STR_ENGINE_NAME, engine == selected_id ? TC_WHITE : TC_BLACK);
DrawVehicleEngine(type, x, y + y_offset, engine, (count_location != 0 && num_engines == 0) ? PALETTE_CRASH : GetEnginePalette(engine, _local_player));
if (count_location != 0) {
SetDParam(0, num_engines);
DrawStringRightAligned(count_location, y + (GetVehicleListHeight(type) == 14 ? 3 : 8), STR_TINY_BLACK, TC_FROMSTRING);
}
}
}
struct BuildVehicleWindow : Window {
VehicleType vehicle_type;
union {
RailTypeByte railtype;
AirportFTAClass::Flags flags;
RoadTypes roadtypes;
} filter;
bool descending_sort_order;
byte sort_criteria;
bool regenerate_list;
bool listview_mode;
EngineID sel_engine;
EngineID rename_engine;
GUIEngineList eng_list;
BuildVehicleWindow(const WindowDesc *desc, TileIndex tile, VehicleType type) : Window(desc, tile == 0 ? (int)type : tile)
{
this->vehicle_type = type;
int vlh = GetVehicleListHeight(this->vehicle_type);
ResizeWindow(this, 0, vlh - 14);
this->resize.step_height = vlh;
this->vscroll.cap = 1;
this->widget[BUILD_VEHICLE_WIDGET_LIST].data = 0x101;
this->resize.width = this->width;
this->resize.height = this->height;
this->caption_color = (tile != 0) ? GetTileOwner(tile) : _local_player;
this->sel_engine = INVALID_ENGINE;
this->regenerate_list = false;
this->sort_criteria = _last_sort_criteria[type];
this->descending_sort_order = _last_sort_order[type];
switch (type) {
default: NOT_REACHED();
case VEH_TRAIN:
this->filter.railtype = (tile == 0) ? RAILTYPE_END : GetRailType(tile);
break;
case VEH_ROAD:
this->filter.roadtypes = (tile == 0) ? ROADTYPES_ALL : GetRoadTypes(tile);
case VEH_SHIP:
break;
case VEH_AIRCRAFT:
this->filter.flags =
tile == 0 ? AirportFTAClass::ALL : GetStationByTile(tile)->Airport()->flags;
break;
}
this->SetupWindowStrings(type);
this->listview_mode = (this->window_number <= VEH_END);
/* If we are just viewing the list of vehicles, we do not need the Build button.
* So we just hide it, and enlarge the Rename buton by the now vacant place. */
if (this->listview_mode) {
this->HideWidget(BUILD_VEHICLE_WIDGET_BUILD);
this->widget[BUILD_VEHICLE_WIDGET_RENAME].left = this->widget[BUILD_VEHICLE_WIDGET_BUILD].left;
} else {
/* Both are visible, adjust the size of each */
ResizeButtons(this, BUILD_VEHICLE_WIDGET_BUILD, BUILD_VEHICLE_WIDGET_RENAME);
}
this->GenerateBuildList(); // generate the list, since we need it in the next line
/* Select the first engine in the list as default when opening the window */
if (this->eng_list.Length() > 0) this->sel_engine = this->eng_list[0];
this->FindWindowPlacementAndResize(desc);
}
/* Setup widget strings to fit the different types of vehicles */
void SetupWindowStrings(VehicleType type)
{
switch (type) {
default: NOT_REACHED();
case VEH_TRAIN:
this->widget[BUILD_VEHICLE_WIDGET_CAPTION].data = this->listview_mode ? STR_AVAILABLE_TRAINS : STR_JUST_STRING;
this->widget[BUILD_VEHICLE_WIDGET_LIST].tooltips = STR_8843_TRAIN_VEHICLE_SELECTION;
this->widget[BUILD_VEHICLE_WIDGET_BUILD].data = STR_881F_BUILD_VEHICLE;
this->widget[BUILD_VEHICLE_WIDGET_BUILD].tooltips = STR_8844_BUILD_THE_HIGHLIGHTED_TRAIN;
this->widget[BUILD_VEHICLE_WIDGET_RENAME].data = STR_8820_RENAME;
this->widget[BUILD_VEHICLE_WIDGET_RENAME].tooltips = STR_8845_RENAME_TRAIN_VEHICLE_TYPE;
break;
case VEH_ROAD:
this->widget[BUILD_VEHICLE_WIDGET_CAPTION].data = this->listview_mode ? STR_AVAILABLE_ROAD_VEHICLES : STR_9006_NEW_ROAD_VEHICLES;
this->widget[BUILD_VEHICLE_WIDGET_LIST].tooltips = STR_9026_ROAD_VEHICLE_SELECTION;
this->widget[BUILD_VEHICLE_WIDGET_BUILD].data = STR_9007_BUILD_VEHICLE;
this->widget[BUILD_VEHICLE_WIDGET_BUILD].tooltips = STR_9027_BUILD_THE_HIGHLIGHTED_ROAD;
this->widget[BUILD_VEHICLE_WIDGET_RENAME].data = STR_9034_RENAME;
this->widget[BUILD_VEHICLE_WIDGET_RENAME].tooltips = STR_9035_RENAME_ROAD_VEHICLE_TYPE;
break;
case VEH_SHIP:
this->widget[BUILD_VEHICLE_WIDGET_CAPTION].data = this->listview_mode ? STR_AVAILABLE_SHIPS : STR_9808_NEW_SHIPS;
this->widget[BUILD_VEHICLE_WIDGET_LIST].tooltips = STR_9825_SHIP_SELECTION_LIST_CLICK;
this->widget[BUILD_VEHICLE_WIDGET_BUILD].data = STR_9809_BUILD_SHIP;
this->widget[BUILD_VEHICLE_WIDGET_BUILD].tooltips = STR_9826_BUILD_THE_HIGHLIGHTED_SHIP;
this->widget[BUILD_VEHICLE_WIDGET_RENAME].data = STR_9836_RENAME;
this->widget[BUILD_VEHICLE_WIDGET_RENAME].tooltips = STR_9837_RENAME_SHIP_TYPE;
break;
case VEH_AIRCRAFT:
this->widget[BUILD_VEHICLE_WIDGET_CAPTION].data = this->listview_mode ? STR_AVAILABLE_AIRCRAFT : STR_A005_NEW_AIRCRAFT;
this->widget[BUILD_VEHICLE_WIDGET_LIST].tooltips = STR_A025_AIRCRAFT_SELECTION_LIST;
this->widget[BUILD_VEHICLE_WIDGET_BUILD].data = STR_A006_BUILD_AIRCRAFT;
this->widget[BUILD_VEHICLE_WIDGET_BUILD].tooltips = STR_A026_BUILD_THE_HIGHLIGHTED_AIRCRAFT;
this->widget[BUILD_VEHICLE_WIDGET_RENAME].data = STR_A037_RENAME;
this->widget[BUILD_VEHICLE_WIDGET_RENAME].tooltips = STR_A038_RENAME_AIRCRAFT_TYPE;
break;
}
}
/* Figure out what train EngineIDs to put in the list */
void GenerateBuildTrainList()
{
EngineID sel_id = INVALID_ENGINE;
int num_engines = 0;
int num_wagons = 0;
this->filter.railtype = (this->listview_mode) ? RAILTYPE_END : GetRailType(this->window_number);
this->eng_list.Clear();
/* Make list of all available train engines and wagons.
* Also check to see if the previously selected engine is still available,
* and if not, reset selection to INVALID_ENGINE. This could be the case
* when engines become obsolete and are removed */
const Engine *e;
FOR_ALL_ENGINES_OF_TYPE(e, VEH_TRAIN) {
EngineID eid = e->index;
const RailVehicleInfo *rvi = &e->u.rail;
if (this->filter.railtype != RAILTYPE_END && !HasPowerOnRail(rvi->railtype, this->filter.railtype)) continue;
if (!IsEngineBuildable(eid, VEH_TRAIN, _local_player)) continue;
*this->eng_list.Append() = eid;
if (rvi->railveh_type != RAILVEH_WAGON) {
num_engines++;
} else {
num_wagons++;
}
if (eid == this->sel_engine) sel_id = eid;
}
this->sel_engine = sel_id;
/* make engines first, and then wagons, sorted by ListPositionOfEngine() */
_internal_sort_order = false;
EngList_Sort(&this->eng_list, TrainEnginesThenWagonsSorter);
/* and then sort engines */
_internal_sort_order = this->descending_sort_order;
EngList_SortPartial(&this->eng_list, _sorter[0][this->sort_criteria], 0, num_engines);
/* and finally sort wagons */
EngList_SortPartial(&this->eng_list, _sorter[0][this->sort_criteria], num_engines, num_wagons);
}
/* Figure out what road vehicle EngineIDs to put in the list */
void GenerateBuildRoadVehList()
{
EngineID sel_id = INVALID_ENGINE;
this->eng_list.Clear();
const Engine *e;
FOR_ALL_ENGINES_OF_TYPE(e, VEH_ROAD) {
EngineID eid = e->index;
if (!IsEngineBuildable(eid, VEH_ROAD, _local_player)) continue;
if (!HasBit(this->filter.roadtypes, HasBit(EngInfo(eid)->misc_flags, EF_ROAD_TRAM) ? ROADTYPE_TRAM : ROADTYPE_ROAD)) continue;
*this->eng_list.Append() = eid;
if (eid == this->sel_engine) sel_id = eid;
}
this->sel_engine = sel_id;
}
/* Figure out what ship EngineIDs to put in the list */
void GenerateBuildShipList()
{
EngineID sel_id = INVALID_ENGINE;
this->eng_list.Clear();
const Engine *e;
FOR_ALL_ENGINES_OF_TYPE(e, VEH_SHIP) {
EngineID eid = e->index;
if (!IsEngineBuildable(eid, VEH_SHIP, _local_player)) continue;
*this->eng_list.Append() = eid;
if (eid == this->sel_engine) sel_id = eid;
}
this->sel_engine = sel_id;
}
/* Figure out what aircraft EngineIDs to put in the list */
void GenerateBuildAircraftList()
{
EngineID sel_id = INVALID_ENGINE;
this->eng_list.Clear();
/* Make list of all available planes.
* Also check to see if the previously selected plane is still available,
* and if not, reset selection to INVALID_ENGINE. This could be the case
* when planes become obsolete and are removed */
const Engine *e;
FOR_ALL_ENGINES_OF_TYPE(e, VEH_AIRCRAFT) {
EngineID eid = e->index;
if (!IsEngineBuildable(eid, VEH_AIRCRAFT, _local_player)) continue;
/* First VEH_END window_numbers are fake to allow a window open for all different types at once */
if (!this->listview_mode && !CanAircraftUseStation(eid, this->window_number)) continue;
*this->eng_list.Append() = eid;
if (eid == this->sel_engine) sel_id = eid;
}
this->sel_engine = sel_id;
}
/* Generate the list of vehicles */
void GenerateBuildList()
{
switch (this->vehicle_type) {
default: NOT_REACHED();
case VEH_TRAIN:
this->GenerateBuildTrainList();
return; // trains should not reach the last sorting
case VEH_ROAD:
this->GenerateBuildRoadVehList();
break;
case VEH_SHIP:
this->GenerateBuildShipList();
break;
case VEH_AIRCRAFT:
this->GenerateBuildAircraftList();
break;
}
_internal_sort_order = this->descending_sort_order;
EngList_Sort(&this->eng_list, _sorter[this->vehicle_type][this->sort_criteria]);
}
void OnClick(Point pt, int widget)
{
switch (widget) {
case BUILD_VEHICLE_WIDGET_SORT_ASSENDING_DESCENDING:
this->descending_sort_order ^= true;
_last_sort_order[this->vehicle_type] = this->descending_sort_order;
this->regenerate_list = true;
this->SetDirty();
break;
case BUILD_VEHICLE_WIDGET_LIST: {
uint i = (pt.y - this->widget[BUILD_VEHICLE_WIDGET_LIST].top) / GetVehicleListHeight(this->vehicle_type) + this->vscroll.pos;
size_t num_items = this->eng_list.Length();
this->sel_engine = (i < num_items) ? this->eng_list[i] : INVALID_ENGINE;
this->SetDirty();
break;
}
case BUILD_VEHICLE_WIDGET_SORT_DROPDOWN: // Select sorting criteria dropdown menu
ShowDropDownMenu(this, _sort_listing[this->vehicle_type], this->sort_criteria, BUILD_VEHICLE_WIDGET_SORT_DROPDOWN, 0, 0);
break;
case BUILD_VEHICLE_WIDGET_BUILD: {
EngineID sel_eng = this->sel_engine;
if (sel_eng != INVALID_ENGINE) {
switch (this->vehicle_type) {
default: NOT_REACHED();
case VEH_TRAIN:
DoCommandP(this->window_number, sel_eng, 0, (RailVehInfo(sel_eng)->railveh_type == RAILVEH_WAGON) ? CcBuildWagon : CcBuildLoco,
CMD_BUILD_RAIL_VEHICLE | CMD_MSG(STR_882B_CAN_T_BUILD_RAILROAD_VEHICLE));
break;
case VEH_ROAD:
DoCommandP(this->window_number, sel_eng, 0, CcBuildRoadVeh, CMD_BUILD_ROAD_VEH | CMD_MSG(STR_9009_CAN_T_BUILD_ROAD_VEHICLE));
break;
case VEH_SHIP:
DoCommandP(this->window_number, sel_eng, 0, CcBuildShip, CMD_BUILD_SHIP | CMD_MSG(STR_980D_CAN_T_BUILD_SHIP));
break;
case VEH_AIRCRAFT:
DoCommandP(this->window_number, sel_eng, 0, CcBuildAircraft, CMD_BUILD_AIRCRAFT | CMD_MSG(STR_A008_CAN_T_BUILD_AIRCRAFT));
break;
}
}
break;
}
case BUILD_VEHICLE_WIDGET_RENAME: {
EngineID sel_eng = this->sel_engine;
if (sel_eng != INVALID_ENGINE) {
StringID str = STR_NULL;
this->rename_engine = sel_eng;
switch (this->vehicle_type) {
default: NOT_REACHED();
case VEH_TRAIN: str = STR_886A_RENAME_TRAIN_VEHICLE_TYPE; break;
case VEH_ROAD: str = STR_9036_RENAME_ROAD_VEHICLE_TYPE; break;
case VEH_SHIP: str = STR_9838_RENAME_SHIP_TYPE; break;
case VEH_AIRCRAFT: str = STR_A039_RENAME_AIRCRAFT_TYPE; break;
}
SetDParam(0, sel_eng);
ShowQueryString(STR_ENGINE_NAME, str, 31, 160, this, CS_ALPHANUMERAL);
}
break;
}
}
}
virtual void OnInvalidateData(int data)
{
this->regenerate_list = true;
}
virtual void OnPaint()
{
if (this->regenerate_list) {
this->regenerate_list = false;
this->GenerateBuildList();
}
uint max = min(this->vscroll.pos + this->vscroll.cap, this->eng_list.Length());
SetVScrollCount(this, this->eng_list.Length());
SetDParam(0, this->filter.railtype + STR_881C_NEW_RAIL_VEHICLES); // This should only affect rail vehicles
/* Set text of sort by dropdown */
this->widget[BUILD_VEHICLE_WIDGET_SORT_DROPDOWN].data = _sort_listing[this->vehicle_type][this->sort_criteria];
this->DrawWidgets();
DrawEngineList(this->vehicle_type, this->widget[BUILD_VEHICLE_WIDGET_LIST].left + 2, this->widget[BUILD_VEHICLE_WIDGET_LIST].top + 1, &this->eng_list, this->vscroll.pos, max, this->sel_engine, 0, DEFAULT_GROUP);
if (this->sel_engine != INVALID_ENGINE) {
const Widget *wi = &this->widget[BUILD_VEHICLE_WIDGET_PANEL];
int text_end = DrawVehiclePurchaseInfo(2, wi->top + 1, wi->right - wi->left - 2, this->sel_engine);
if (text_end > wi->bottom) {
this->SetDirty();
ResizeWindowForWidget(this, BUILD_VEHICLE_WIDGET_PANEL, 0, text_end - wi->bottom);
this->SetDirty();
}
}
this->DrawSortButtonState(BUILD_VEHICLE_WIDGET_SORT_ASSENDING_DESCENDING, this->descending_sort_order ? SBS_DOWN : SBS_UP);
}
virtual void OnDoubleClick(Point pt, int widget)
{
if (widget == BUILD_VEHICLE_WIDGET_LIST) {
/* When double clicking, we want to buy a vehicle */
this->OnClick(pt, BUILD_VEHICLE_WIDGET_BUILD);
}
}
virtual void OnQueryTextFinished(char *str)
{
if (!StrEmpty(str)) {
StringID err_str = STR_NULL;
_cmd_text = str;
switch (this->vehicle_type) {
default: NOT_REACHED();
case VEH_TRAIN: err_str = STR_886B_CAN_T_RENAME_TRAIN_VEHICLE; break;
case VEH_ROAD: err_str = STR_9037_CAN_T_RENAME_ROAD_VEHICLE; break;
case VEH_SHIP: err_str = STR_9839_CAN_T_RENAME_SHIP_TYPE; break;
case VEH_AIRCRAFT: err_str = STR_A03A_CAN_T_RENAME_AIRCRAFT_TYPE; break;
}
DoCommandP(0, this->rename_engine, 0, NULL, CMD_RENAME_ENGINE | CMD_MSG(err_str));
}
}
virtual void OnDropdownSelect(int widget, int index)
{
if (this->sort_criteria != index) {
this->sort_criteria = index;
_last_sort_criteria[this->vehicle_type] = this->sort_criteria;
this->regenerate_list = true;
}
this->SetDirty();
}
virtual void OnResize(Point new_size, Point delta)
{
if (delta.x != 0 && !this->listview_mode) {
ResizeButtons(this, BUILD_VEHICLE_WIDGET_BUILD, BUILD_VEHICLE_WIDGET_RENAME);
}
if (delta.y == 0) return;
this->vscroll.cap += delta.y / (int)GetVehicleListHeight(this->vehicle_type);
this->widget[BUILD_VEHICLE_WIDGET_LIST].data = (this->vscroll.cap << 8) + 1;
}
};
static const WindowDesc _build_vehicle_desc = {
WDP_AUTO, WDP_AUTO, 240, 174, 240, 256,
WC_BUILD_VEHICLE, WC_NONE,
WDF_STD_TOOLTIPS | WDF_STD_BTN | WDF_DEF_WIDGET | WDF_UNCLICK_BUTTONS | WDF_RESIZABLE,
_build_vehicle_widgets,
};
void ShowBuildVehicleWindow(TileIndex tile, VehicleType type)
{
/* We want to be able to open both Available Train as Available Ships,
* so if tile == 0 (Available XXX Window), use 'type' as unique number.
* As it always is a low value, it won't collide with any real tile
* number. */
uint num = (tile == 0) ? (int)type : tile;
assert(IsPlayerBuildableVehicleType(type));
DeleteWindowById(WC_BUILD_VEHICLE, num);
new BuildVehicleWindow(&_build_vehicle_desc, tile, type);
}