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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 newgrf_industries.h Functions for NewGRF industries. */
#ifndef NEWGRF_INDUSTRIES_H
#define NEWGRF_INDUSTRIES_H
#include "newgrf_town.h"
/** Resolver for industry scopes. */
struct IndustriesScopeResolver : public ScopeResolver {
TileIndex tile; ///< Tile owned by the industry.
Industry *industry; ///< %Industry being resolved.
IndustryType type; ///< Type of the industry.
uint32 random_bits; ///< Random bits of the new industry.
/**
* Scope resolver for industries.
* @param ro Surrounding resolver.
* @param tile %Tile owned by the industry.
* @param industry %Industry being resolved.
* @param type Type of the industry.
* @param random_bits Random bits of the new industry.
*/
IndustriesScopeResolver(ResolverObject &ro, TileIndex tile, Industry *industry, IndustryType type, uint32 random_bits = 0)
: ScopeResolver(ro), tile(tile), industry(industry), type(type), random_bits(random_bits)
{
}
uint32 GetRandomBits() const override;
uint32 GetVariable(byte variable, uint32 parameter, bool *available) const override;
uint32 GetTriggers() const override;
void StorePSA(uint pos, int32 value) override;
};
/** Resolver for industries. */
struct IndustriesResolverObject : public ResolverObject {
IndustriesScopeResolver industries_scope; ///< Scope resolver for the industry.
TownScopeResolver *town_scope; ///< Scope resolver for the associated town (if needed and available, else \c nullptr).
IndustriesResolverObject(TileIndex tile, Industry *indus, IndustryType type, uint32 random_bits = 0,
CallbackID callback = CBID_NO_CALLBACK, uint32 callback_param1 = 0, uint32 callback_param2 = 0);
~IndustriesResolverObject();
TownScopeResolver *GetTown();
ScopeResolver *GetScope(VarSpriteGroupScope scope = VSG_SCOPE_SELF, byte relative = 0) override
{
switch (scope) {
case VSG_SCOPE_SELF: return &industries_scope;
case VSG_SCOPE_PARENT: {
TownScopeResolver *tsr = this->GetTown();
if (tsr != nullptr) return tsr;
}
FALLTHROUGH;
default:
return ResolverObject::GetScope(scope, relative);
}
}
};
/** When should the industry(tile) be triggered for random bits? */
enum IndustryTrigger {
/** Triggered each tile loop */
INDUSTRY_TRIGGER_TILELOOP_PROCESS = 1,
/** Triggered (whole industry) each 256 ticks */
INDUSTRY_TRIGGER_256_TICKS = 2,
/** Triggered on cargo delivery */
INDUSTRY_TRIGGER_CARGO_DELIVERY = 4,
};
/** From where has callback #CBID_INDUSTRY_PROBABILITY been called */
enum IndustryAvailabilityCallType {
IACT_MAPGENERATION, ///< during random map generation
IACT_RANDOMCREATION, ///< during creation of random ingame industry
IACT_USERCREATION, ///< from the Fund/build window
IACT_PROSPECTCREATION, ///< from the Fund/build using prospecting
};
/* in newgrf_industry.cpp */
uint16 GetIndustryCallback(CallbackID callback, uint32 param1, uint32 param2, Industry *industry, IndustryType type, TileIndex tile);
uint32 GetIndustryIDAtOffset(TileIndex new_tile, const Industry *i, uint32 cur_grfid);
void IndustryProductionCallback(Industry *ind, int reason);
CommandCost CheckIfCallBackAllowsCreation(TileIndex tile, IndustryType type, size_t layout, uint32 seed, uint16 initial_random_bits, Owner founder, IndustryAvailabilityCallType creation_type);
uint32 GetIndustryProbabilityCallback(IndustryType type, IndustryAvailabilityCallType creation_type, uint32 default_prob);
bool IndustryTemporarilyRefusesCargo(Industry *ind, CargoID cargo_type);
IndustryType MapNewGRFIndustryType(IndustryType grf_type, uint32 grf_id);
/* in newgrf_industrytiles.cpp*/
uint32 GetNearbyIndustryTileInformation(byte parameter, TileIndex tile, IndustryID index, bool signed_offsets, bool grf_version8);
#endif /* NEWGRF_INDUSTRIES_H */
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