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/* $Id$ */

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/** @file industry.h Base of all industries. */

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#ifndef INDUSTRY_H

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#define INDUSTRY_H

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#include "oldpool.h"

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#include "core/random_func.hpp"

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#include "newgrf_storage.h"

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#include "cargo_type.h"

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#include "economy_type.h"

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#include "map_type.h"

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#include "slope_type.h"

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#include "date_type.h"

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#include "town_type.h"

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#include "industry_type.h"

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#include "landscape_type.h"

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enum {

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	INVALID_INDUSTRY       = 0xFFFF,

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	NEW_INDUSTRYOFFSET     = 37,                         ///< original number of industries

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	NUM_INDUSTRYTYPES      = 64,                         ///< total number of industries, new and old

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	INDUSTRYTILE_NOANIM    = 0xFF,                       ///< flag to mark industry tiles as having no animation

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	NEW_INDUSTRYTILEOFFSET = 175,                        ///< original number of tiles

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	INVALID_INDUSTRYTYPE   = NUM_INDUSTRYTYPES,          ///< one above amount is considered invalid

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	NUM_INDUSTRYTILES      = 512,                        ///< total number of industry tiles, new and old

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	INVALID_INDUSTRYTILE   = NUM_INDUSTRYTILES,          ///< one above amount is considered invalid

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	INDUSTRY_COMPLETED     = 3,                          ///< final stage of industry construction.

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};

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enum {

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	CLEAN_RANDOMSOUNDS,    ///< Free the dynamically allocated sounds table

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	CLEAN_TILELSAYOUT,     ///< Free the dynamically allocated tile layout structure

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};

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enum IndustryLifeType {

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	INDUSTRYLIFE_BLACK_HOLE =      0, ///< Like power plants and banks

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	INDUSTRYLIFE_EXTRACTIVE = 1 << 0, ///< Like mines

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	INDUSTRYLIFE_ORGANIC    = 1 << 1, ///< Like forests

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	INDUSTRYLIFE_PROCESSING = 1 << 2, ///< Like factories

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};

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/* Procedures that can be run to check whether an industry may

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 * build at location the given to the procedure */

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enum CheckProc {

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	CHECK_NOTHING,

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	CHECK_FOREST,

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	CHECK_REFINERY,

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	CHECK_FARM,

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	CHECK_PLANTATION,

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	CHECK_WATER,

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	CHECK_LUMBERMILL,

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	CHECK_BUBBLEGEN,

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	CHECK_OIL_RIG,

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	CHECK_END,

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};

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/** How was the industry created */

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enum IndustryConstructionType {

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	ICT_UNKNOWN,          ///< in previous game version or without newindustries activated

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	ICT_NORMAL_GAMEPLAY,  ///< either by user or random creation proccess

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	ICT_MAP_GENERATION,   ///< during random map creation

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	ICT_SCENARIO_EDITOR   ///< while scenarion edition

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};

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enum IndustryBehaviour {

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	INDUSTRYBEH_NONE                  =      0,

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	INDUSTRYBEH_PLANT_FIELDS          = 1 << 0,  ///< periodically plants fileds around itself (temp and artic farms)

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	INDUSTRYBEH_CUT_TREES             = 1 << 1,  ///< cuts trees and produce first output cargo from them (lumber mill)

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	INDUSTRYBEH_BUILT_ONWATER         = 1 << 2,  ///< is built on water (oil rig)

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	INDUSTRYBEH_TOWN1200_MORE         = 1 << 3,  ///< can only be built in towns larger than 1200 inhabitants (temperate bank)

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	INDUSTRYBEH_ONLY_INTOWN           = 1 << 4,  ///< can only be built in towns (arctic/tropic banks, water tower)

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	INDUSTRYBEH_ONLY_NEARTOWN         = 1 << 5,  ///< is always built near towns (toy shop)

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	INDUSTRYBEH_PLANT_ON_BUILT        = 1 << 6,  ///< Fields are planted around when built (all farms)

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	INDUSTRYBEH_DONT_INCR_PROD        = 1 << 7,  ///< do not increase production (oil wells) in the temperate climate

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	INDUSTRYBEH_BEFORE_1950           = 1 << 8,  ///< can only be built before 1950 (oil wells)

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	INDUSTRYBEH_AFTER_1960            = 1 << 9,  ///< can only be built after 1960 (oil rigs)

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	INDUSTRYBEH_AI_AIRSHIP_ROUTES     = 1 << 10, ///< ai will attempt to establish air/ship routes to this industry (oil rig)

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	INDUSTRYBEH_AIRPLANE_ATTACKS      = 1 << 11, ///< can be exploded by a military airplane (oil refinery)

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	INDUSTRYBEH_CHOPPER_ATTACKS       = 1 << 12, ///< can be exploded by a military helicopter (factory)

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	INDUSTRYBEH_CAN_SUBSIDENCE        = 1 << 13, ///< can cause a subsidence (coal mine, shaft that collapses)

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	/* The following flags are only used for newindustries and do no represent any normal behaviour */

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	INDUSTRYBEH_PROD_MULTI_HNDLING    = 1 << 14, ///< Automatic production multiplier handling

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	INDUSTRYBEH_PRODCALLBACK_RANDOM   = 1 << 15, ///< Production callback needs random bits in var 10

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	INDUSTRYBEH_NOBUILT_MAPCREATION   = 1 << 16, ///< Do not force one instance of this type to appear on map generation

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	INDUSTRYBEH_CANCLOSE_LASTINSTANCE = 1 << 17, ///< Allow closing down the last instance of this type

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};

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DECLARE_ENUM_AS_BIT_SET(IndustryBehaviour);

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DECLARE_OLD_POOL(Industry, Industry, 3, 8000)

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/**

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 * Defines the internal data of a functionnal industry

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 */

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struct Industry : PoolItem<Industry, IndustryID, &_Industry_pool> {

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	typedef PersistentStorageArray<uint32, 16> PersistentStorage;

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	TileIndex xy;                       ///< coordinates of the primary tile the industry is built one

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	byte width;

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	byte height;

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	const Town *town;                   ///< Nearest town

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	CargoID produced_cargo[2];          ///< 2 production cargo slots

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	uint16 produced_cargo_waiting[2];   ///< amount of cargo produced per cargo

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	uint16 incoming_cargo_waiting[3];   ///< incoming cargo waiting to be processed

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	byte production_rate[2];            ///< production rate for each cargo

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	byte prod_level;                    ///< general production level

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	CargoID accepts_cargo[3];           ///< 3 input cargo slots

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	uint16 this_month_production[2];    ///< stats of this month's production per cargo

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	uint16 this_month_transported[2];   ///< stats of this month's transport per cargo

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	byte last_month_pct_transported[2]; ///< percentage transported per cargo in the last full month

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	uint16 last_month_production[2];    ///< total units produced per cargo in the last full month

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	uint16 last_month_transported[2];   ///< total units transported per cargo in the last full month

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	uint16 counter;                     ///< used for animation and/or production (if available cargo)

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	IndustryType type;                  ///< type of industry.

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	OwnerByte owner;                    ///< owner of the industry.  Which SHOULD always be (imho) OWNER_NONE

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	byte random_color;                  ///< randomized colour of the industry, for display purpose

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	Year last_prod_year;                ///< last year of production

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	byte was_cargo_delivered;           ///< flag that indicate this has been the closest industry chosen for cargo delivery by a station. see DeliverGoodsToIndustry

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	OwnerByte founder;                  ///< Founder of the industry

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	Date construction_date;             ///< Date of the construction of the industry

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	uint8 construction_type;            ///< Way the industry was constructed (@see IndustryConstructionType)

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	Date last_cargo_accepted_at;        ///< Last day cargo was accepted by this industry

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	byte selected_layout;               ///< Which tile layout was used when creating the industry

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	byte random_triggers;               ///< Triggers for the random

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	uint16 random;                      ///< Random value used for randomisation of all kinds of things

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	PersistentStorage psa;              ///< Persistent storage for NewGRF industries.

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	Industry(TileIndex tile = 0) : xy(tile) {}

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	~Industry();

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	inline bool IsValid() const { return this->xy != 0; }

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};

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struct IndustryTileTable {

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	TileIndexDiffC ti;

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	IndustryGfx gfx;

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};

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/** Data related to the handling of grf files.  Common to both industry and industry tile */

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struct GRFFileProps {

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	uint16 subst_id;

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	uint16 local_id;                      ///< id defined by the grf file for this industry

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	struct SpriteGroup *spritegroup;      ///< pointer to the different sprites of the industry

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	const struct GRFFile *grffile;        ///< grf file that introduced this industry

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	uint16 override;                      ///< id of the entity been replaced by

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};

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/**

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 * Defines the data structure for constructing industry.

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 */

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struct IndustrySpec {

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	const IndustryTileTable *const *table;///< List of the tiles composing the industry

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	byte num_table;                       ///< Number of elements in the table

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	uint8 cost_multiplier;                ///< Base construction cost multiplier.

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	uint32 removal_cost_multiplier;       ///< Base removal cost multiplier.

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	uint16 raw_industry_cost_multiplier;  ///< Multiplier for the raw industries cost

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	uint32 prospecting_chance;            ///< Chance prospecting succeeds

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	IndustryType conflicting[3];          ///< Industries this industry cannot be close to

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	byte check_proc;                      ///< Index to a procedure to check for conflicting circumstances

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	CargoID produced_cargo[2];

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	byte production_rate[2];

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	byte minimal_cargo;                   ///< minimum amount of cargo transported to the stations

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	                                      ///< If the waiting cargo is less than this number, no cargo is moved to it

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	CargoID accepts_cargo[3];             ///< 3 accepted cargos

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	uint16 input_cargo_multiplier[3][2];  ///< Input cargo multipliers (multiply amount of incoming cargo for the produced cargos)

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	IndustryLifeType life_type;           ///< This is also known as Industry production flag, in newgrf specs

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	byte climate_availability;            ///< Bitmask, giving landscape enums as bit position

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	IndustryBehaviour behaviour;           ///< How this industry will behave, and how others entities can use it

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	byte map_colour;                      ///< colour used for the small map

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	StringID name;                        ///< Displayed name of the industry

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	StringID new_industry_text;           ///< Message appearing when the industry is built

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	StringID closure_text;                ///< Message appearing when the industry closes

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	StringID production_up_text;          ///< Message appearing when the industry's production is increasing

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	StringID production_down_text;        ///< Message appearing when the industry's production is decreasing

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	StringID station_name;                ///< Default name for nearby station

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	byte appear_ingame[NUM_LANDSCAPE];    ///< Probability of appearance in game

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	byte appear_creation[NUM_LANDSCAPE];  ///< Probability of appearance during map creation

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	uint8 number_of_sounds;               ///< Number of sounds available in the sounds array

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	const uint8 *random_sounds;           ///< array of random sounds.

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	/* Newgrf data */

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	uint16 callback_flags;                ///< Flags telling which grf callback is set

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	uint8 cleanup_flag;                   ///< flags indicating which data should be freed upon cleaning up

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	bool enabled;                         ///< entity still avaible (by default true).newgrf can disable it, though

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	struct GRFFileProps grf_prop;         ///< properties related the the grf file

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	/**

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	 * Is an industry with the spec a raw industry?

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	 * @return true if it should be handled as a raw industry

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	 */

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	bool IsRawIndustry() const;

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	/**

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	 * Get the cost for constructing this industry

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	 * @return the cost (inflation corrected etc)

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	 */

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	Money GetConstructionCost() const;

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	/**

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	 * Get the cost for removing this industry

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	 * Take note that the cost will always be zero for non-grf industries.

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	 * Only if the grf author did specified a cost will it be applicable.

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	 * @return the cost (inflation corrected etc)

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	 */

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	Money GetRemovalCost() const;

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};

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/**

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 * Defines the data structure of each indivudual tile of an industry.

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 */

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struct IndustryTileSpec {

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	CargoID accepts_cargo[3];             ///< Cargo accepted by this tile

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	uint8 acceptance[3];                  ///< Level of aceptance per cargo type

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	Slope slopes_refused;                 ///< slope pattern on which this tile cannot be built

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	byte anim_production;                 ///< Animation frame to start when goods are produced

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	byte anim_next;                       ///< Next frame in an animation

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	bool anim_state;                      ///< When true, the tile has to be drawn using the animation

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	                                      ///< state instead of the construction state

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	/* Newgrf data */

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	uint8 callback_flags;                 ///< Flags telling which grf callback is set

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	uint16 animation_info;                ///< Information about the animation (is it looping, how many loops etc)

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	uint8 animation_speed;                ///< The speed of the animation

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	uint8 animation_triggers;             ///< When to start the animation

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	uint8 animation_special_flags;        ///< Extra flags to influence the animation

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	bool enabled;                         ///< entity still avaible (by default true).newgrf can disable it, though

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	struct GRFFileProps grf_prop;

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};

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/* industry_cmd.cpp*/

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const IndustrySpec *GetIndustrySpec(IndustryType thistype);    ///< Array of industries data

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const IndustryTileSpec *GetIndustryTileSpec(IndustryGfx gfx);  ///< Array of industry tiles data

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void ResetIndustries();

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void PlantRandomFarmField(const Industry *i);

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/* writable arrays of specs */

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extern IndustrySpec _industry_specs[NUM_INDUSTRYTYPES];

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extern IndustryTileSpec _industry_tile_specs[NUM_INDUSTRYTILES];

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static inline IndustryGfx GetTranslatedIndustryTileID(IndustryGfx gfx)

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{

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	/* the 0xFF should be GFX_WATERTILE_SPECIALCHECK but for reasons of include mess,

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	 * we'll simplify the writing.

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	 * Basically, the first test is required since the GFX_WATERTILE_SPECIALCHECK value

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	 * will never be assigned as a tile index and is only required in order to do some

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	 * tests while building the industry (as in WATER REQUIRED */

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	if (gfx != 0xFF) {

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		assert(gfx < INVALID_INDUSTRYTILE);

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		const IndustryTileSpec *it = &_industry_tile_specs[gfx];

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		return it->grf_prop.override == INVALID_INDUSTRYTILE ? gfx : it->grf_prop.override;

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	} else {

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		return gfx;

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	}

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}

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/* smallmap_gui.cpp */

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void BuildIndustriesLegend();

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/* industry_cmd.cpp */

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void SetIndustryDailyChanges();

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/**

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 * Check if an Industry exists whithin the pool of industries

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 * @param index of the desired industry

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 * @return true if it is inside the pool

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 */

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static inline bool IsValidIndustryID(IndustryID index)

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{

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	return index < GetIndustryPoolSize() && GetIndustry(index)->IsValid();

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}

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static inline IndustryID GetMaxIndustryIndex()

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{

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	/* TODO - This isn't the real content of the function, but

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	 *  with the new pool-system this will be replaced with one that

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	 *  _really_ returns the highest index. Now it just returns

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	 *  the next safe value we are sure about everything is below.

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	 */

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	return GetIndustryPoolSize() - 1;

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}

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extern int _total_industries;  // general counter

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extern uint16 _industry_counts[NUM_INDUSTRYTYPES]; // Number of industries per type ingame

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static inline uint GetNumIndustries()

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{

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	return _total_industries;

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}

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/** Increment the count of industries for this type

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 * @param type IndustryType to increment

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 * @pre type < INVALID_INDUSTRYTYPE */

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static inline void IncIndustryTypeCount(IndustryType type)

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{

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	assert(type < INVALID_INDUSTRYTYPE);

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	_industry_counts[type]++;

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	_total_industries++;

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}

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/** Decrement the count of industries for this type

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 * @param type IndustryType to decrement

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 * @pre type < INVALID_INDUSTRYTYPE */

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static inline void DecIndustryTypeCount(IndustryType type)

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{

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	assert(type < INVALID_INDUSTRYTYPE);

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	_industry_counts[type]--;

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	_total_industries--;

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}

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/** get the count of industries for this type

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 * @param type IndustryType to query

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 * @pre type < INVALID_INDUSTRYTYPE */

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static inline uint8 GetIndustryTypeCount(IndustryType type)

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{

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	assert(type < INVALID_INDUSTRYTYPE);

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	return min(_industry_counts[type], 0xFF); // callback expects only a byte, so cut it

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}

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/** Resets both the total_industries and the _industry_counts

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 * This way, we centralize all counts activities */

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static inline void ResetIndustryCounts()

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{

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	_total_industries = 0;

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	memset(&_industry_counts, 0, sizeof(_industry_counts));

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}

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/**

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 * Return a random valid industry.

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 */

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static inline Industry *GetRandomIndustry()

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{

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	int num = RandomRange(GetNumIndustries());

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	IndustryID index = INVALID_INDUSTRY;

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	if (GetNumIndustries() == 0) return NULL;

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	while (num >= 0) {

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		num--;

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		index++;

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		/* Make sure we have a valid industry */

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		while (!IsValidIndustryID(index)) {

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			index++;

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			assert(index <= GetMaxIndustryIndex());

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		}

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	}

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	return GetIndustry(index);

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}

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#define FOR_ALL_INDUSTRIES_FROM(i, start) for (i = GetIndustry(start); i != NULL; i = (i->index + 1U < GetIndustryPoolSize()) ? GetIndustry(i->index + 1U) : NULL) if (i->IsValid())

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#define FOR_ALL_INDUSTRIES(i) FOR_ALL_INDUSTRIES_FROM(i, 0)

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static const uint8 IT_INVALID = 255;

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#endif /* INDUSTRY_H */