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/* $Id$ */
/*
* 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 cargotype.cpp Implementation of cargos. */
#include "stdafx.h"
#include "cargotype.h"
#include "core/bitmath_func.hpp"
#include "newgrf_cargo.h"
#include "string_func.h"
#include "strings_func.h"
#include "core/sort_func.hpp"
#include "table/sprites.h"
#include "table/strings.h"
#include "table/cargo_const.h"
CargoSpec CargoSpec::array[NUM_CARGO];
/**
* Bitmask of cargo types available.
* Initialized during a call to #SetupCargoForClimate.
*/
uint32 _cargo_mask;
/**
* Set up the default cargo types for the given landscape type.
* @param l Landscape
*/
void SetupCargoForClimate(LandscapeID l)
{
assert(l < lengthof(_default_climate_cargo));
/* Reset and disable all cargo types */
memset(CargoSpec::array, 0, sizeof(CargoSpec::array));
for (CargoID i = 0; i < lengthof(CargoSpec::array); i++) CargoSpec::Get(i)->bitnum = INVALID_CARGO;
_cargo_mask = 0;
for (CargoID i = 0; i < lengthof(_default_climate_cargo[l]); i++) {
CargoLabel cl = _default_climate_cargo[l][i];
/* Bzzt: check if cl is just an index into the cargo table */
if (cl < lengthof(_default_cargo)) {
/* Copy the indexed cargo */
CargoSpec *cargo = CargoSpec::Get(i);
*cargo = _default_cargo[cl];
if (cargo->bitnum != INVALID_CARGO) SetBit(_cargo_mask, i);
continue;
}
/* Loop through each of the default cargo types to see if
* the label matches */
for (uint j = 0; j < lengthof(_default_cargo); j++) {
if (_default_cargo[j].label == cl) {
*CargoSpec::Get(i) = _default_cargo[j];
/* Populate the available cargo mask */
SetBit(_cargo_mask, i);
break;
}
}
}
}
/**
* Get the cargo ID by cargo label.
* @param cl Cargo type to get.
* @return ID number if the cargo exists, else #CT_INVALID
*/
CargoID GetCargoIDByLabel(CargoLabel cl)
{
const CargoSpec *cs;
FOR_ALL_CARGOSPECS(cs) {
if (cs->label == cl) return cs->Index();
}
/* No matching label was found, so it is invalid */
return CT_INVALID;
}
/**
* Find the CargoID of a 'bitnum' value.
* @param bitnum 'bitnum' to find.
* @return First CargoID with the given bitnum, or #CT_INVALID if not found or if the provided \a bitnum is invalid.
*/
CargoID GetCargoIDByBitnum(uint8 bitnum)
{
if (bitnum == INVALID_CARGO) return CT_INVALID;
const CargoSpec *cs;
FOR_ALL_CARGOSPECS(cs) {
if (cs->bitnum == bitnum) return cs->Index();
}
/* No matching label was found, so it is invalid */
return CT_INVALID;
}
/**
* Get sprite for showing cargo of this type.
* @return Sprite number to use.
*/
SpriteID CargoSpec::GetCargoIcon() const
{
SpriteID sprite = this->sprite;
if (sprite == 0xFFFF) {
/* A value of 0xFFFF indicates we should draw a custom icon */
sprite = GetCustomCargoSprite(this);
}
if (sprite == 0) sprite = SPR_CARGO_GOODS;
return sprite;
}
const CargoSpec *_sorted_cargo_specs[NUM_CARGO]; ///< Cargo specifications sorted alphabetically by name.
uint8 _sorted_cargo_specs_size; ///< Number of cargo specifications stored at the _sorted_cargo_specs array (including special cargos).
uint8 _sorted_standard_cargo_specs_size; ///< Number of standard cargo specifications stored at the _sorted_cargo_specs array.
/** Sort cargo specifications by their name. */
static int CDECL CargoSpecNameSorter(const CargoSpec * const *a, const CargoSpec * const *b)
{
static char a_name[64];
static char b_name[64];
GetString(a_name, (*a)->name, lastof(a_name));
GetString(b_name, (*b)->name, lastof(b_name));
int res = strnatcmp(a_name, b_name); // Sort by name (natural sorting).
/* If the names are equal, sort by cargo bitnum. */
return (res != 0) ? res : ((*a)->bitnum - (*b)->bitnum);
}
/** Sort cargo specifications by their cargo class. */
static int CDECL CargoSpecClassSorter(const CargoSpec * const *a, const CargoSpec * const *b)
{
int res = ((*b)->classes & CC_PASSENGERS) - ((*a)->classes & CC_PASSENGERS);
if (res == 0) {
res = ((*b)->classes & CC_MAIL) - ((*a)->classes & CC_MAIL);
if (res == 0) {
res = ((*a)->classes & CC_SPECIAL) - ((*b)->classes & CC_SPECIAL);
if (res == 0) {
return CargoSpecNameSorter(a, b);
}
}
}
return res;
}
/** Initialize the list of sorted cargo specifications. */
void InitializeSortedCargoSpecs()
{
_sorted_cargo_specs_size = 0;
const CargoSpec *cargo;
/* Add each cargo spec to the list. */
FOR_ALL_CARGOSPECS(cargo) {
_sorted_cargo_specs[_sorted_cargo_specs_size] = cargo;
_sorted_cargo_specs_size++;
}
/* Sort cargo specifications by cargo class and name. */
QSortT(_sorted_cargo_specs, _sorted_cargo_specs_size, &CargoSpecClassSorter);
_sorted_standard_cargo_specs_size = 0;
FOR_ALL_SORTED_CARGOSPECS(cargo) {
if (cargo->classes & CC_SPECIAL) break;
_sorted_standard_cargo_specs_size++;
}
}
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