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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.h Types/functions related to cargos. */
#ifndef CARGOTYPE_H
#define CARGOTYPE_H
#include "economy_type.h"
#include "cargo_type.h"
#include "gfx_type.h"
#include "strings_type.h"
#include "landscape_type.h"
/** Globally unique label of a cargo type. */
typedef uint32 CargoLabel;
/** Town growth effect when delivering cargo. */
enum TownEffect {
TE_NONE, ///< Cargo has no effect.
TE_PASSENGERS, ///< Cargo behaves passenger-like.
TE_MAIL, ///< Cargo behaves mail-like.
TE_GOODS, ///< Cargo behaves goods/candy-like.
TE_WATER, ///< Cargo behaves water-like.
TE_FOOD, ///< Cargo behaves food/fizzy-drinks-like.
};
/** Cargo classes. */
enum CargoClass {
CC_NOAVAILABLE = 0, ///< No cargo class has been specified
CC_PASSENGERS = 1 << 0, ///< Passengers
CC_MAIL = 1 << 1, ///< Mail
CC_EXPRESS = 1 << 2, ///< Express cargo (Goods, Food, Candy, but also possible for passengers)
CC_ARMOURED = 1 << 3, ///< Armoured cargo (Valuables, Gold, Diamonds)
CC_BULK = 1 << 4, ///< Bulk cargo (Coal, Grain etc., Ores, Fruit)
CC_PIECE_GOODS = 1 << 5, ///< Piece goods (Livestock, Wood, Steel, Paper)
CC_LIQUID = 1 << 6, ///< Liquids (Oil, Water, Rubber)
CC_REFRIGERATED = 1 << 7, ///< Refrigerated cargo (Food, Fruit)
CC_HAZARDOUS = 1 << 8, ///< Hazardous cargo (Nuclear Fuel, Explosives, etc.)
CC_COVERED = 1 << 9, ///< Covered/Sheltered Freight (Transporation in Box Vans, Silo Wagons, etc.)
CC_SPECIAL = 1 << 15 ///< Special bit used for livery refit tricks instead of normal cargoes.
};
static const byte INVALID_CARGO = 0xFF; ///< Constant representing invalid cargo
/** Specification of a cargo type. */
struct CargoSpec {
uint8 bitnum; ///< Cargo bit number, is #INVALID_CARGO for a non-used spec.
CargoLabel label; ///< Unique label of the cargo type.
uint8 legend_colour;
uint8 rating_colour;
uint8 weight; ///< Weight of a single unit of this cargo type in 1/16 ton (62.5 kg).
uint16 initial_payment;
uint8 transit_days[2];
bool is_freight; ///< Cargo type is considered to be freight (affects train freight multiplier).
TownEffect town_effect; ///< The effect that delivering this cargo type has on towns. Also affects destination of subsidies.
uint16 multipliertowngrowth; ///< Size of the effect.
uint8 callback_mask; ///< Bitmask of cargo callbacks that have to be called
StringID name; ///< Name of this type of cargo.
StringID name_single; ///< Name of a single entity of this type of cargo.
StringID units_volume; ///< Name of a single unit of cargo of this type.
StringID quantifier; ///< Text for multiple units of cargo of this type.
StringID abbrev; ///< Two letter abbreviation for this cargo type.
SpriteID sprite; ///< Icon to display this cargo type, may be \c 0xFFF (which means to resolve an action123 chain).
uint16 classes; ///< Classes of this cargo type. @see CargoClass
const struct GRFFile *grffile; ///< NewGRF where #group belongs to.
const struct SpriteGroup *group;
Money current_payment;
/**
* Determines index of this cargospec
* @return index (in the CargoSpec::array array)
*/
FORCEINLINE CargoID Index() const
{
return this - CargoSpec::array;
}
/**
* Tests for validity of this cargospec
* @return is this cargospec valid?
* @note assert(cs->IsValid()) can be triggered when GRF config is modified
*/
FORCEINLINE bool IsValid() const
{
return this->bitnum != INVALID_CARGO;
}
/**
* Total number of cargospecs, both valid and invalid
* @return length of CargoSpec::array
*/
static FORCEINLINE size_t GetArraySize()
{
return lengthof(CargoSpec::array);
}
/**
* Retrieve cargo details for the given cargo ID
* @param index ID of cargo
* @pre index is a valid cargo ID
*/
static FORCEINLINE CargoSpec *Get(size_t index)
{
assert(index < lengthof(CargoSpec::array));
return &CargoSpec::array[index];
}
SpriteID GetCargoIcon() const;
private:
static CargoSpec array[NUM_CARGO]; ///< Array holding all CargoSpecs
friend void SetupCargoForClimate(LandscapeID l);
};
extern uint32 _cargo_mask;
void SetupCargoForClimate(LandscapeID l);
CargoID GetCargoIDByLabel(CargoLabel cl);
CargoID GetCargoIDByBitnum(uint8 bitnum);
/** Does cargo \a c have cargo class \a cc?
* @param c Cargo type.
* @param cc Cargo class.
* @return The type fits in the class.
*/
static inline bool IsCargoInClass(CargoID c, CargoClass cc)
{
return (CargoSpec::Get(c)->classes & cc) != 0;
}
#define FOR_ALL_CARGOSPECS_FROM(var, start) for (size_t cargospec_index = start; var = NULL, cargospec_index < CargoSpec::GetArraySize(); cargospec_index++) \
if ((var = CargoSpec::Get(cargospec_index))->IsValid())
#define FOR_ALL_CARGOSPECS(var) FOR_ALL_CARGOSPECS_FROM(var, 0)
#endif /* CARGOTYPE_H */
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