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90 lines
3.3 KiB
C++
90 lines
3.3 KiB
C++
/*
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* This file is part of OpenTTD.
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* 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.
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* 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.
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* 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/>.
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*/
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/** @file script_cargo.cpp Implementation of ScriptCargo. */
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#include "../../stdafx.h"
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#include "script_cargo.hpp"
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#include "../../economy_func.h"
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#include "../../core/bitmath_func.hpp"
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#include "../../strings_func.h"
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#include "../../settings_type.h"
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#include "table/strings.h"
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#include "../../safeguards.h"
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/* static */ bool ScriptCargo::IsValidCargo(CargoID cargo_type)
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{
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return (cargo_type < NUM_CARGO && ::CargoSpec::Get(cargo_type)->IsValid());
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}
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/* static */ bool ScriptCargo::IsValidTownEffect(TownEffect towneffect_type)
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{
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return (towneffect_type >= (TownEffect)TE_BEGIN && towneffect_type < (TownEffect)TE_END);
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}
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/* static */ char *ScriptCargo::GetName(CargoID cargo_type)
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{
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if (!IsValidCargo(cargo_type)) return nullptr;
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::SetDParam(0, 1ULL << cargo_type);
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return GetString(STR_JUST_CARGO_LIST);
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}
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/* static */ char *ScriptCargo::GetCargoLabel(CargoID cargo_type)
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{
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if (!IsValidCargo(cargo_type)) return nullptr;
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const CargoSpec *cargo = ::CargoSpec::Get(cargo_type);
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/* cargo->label is a uint32 packing a 4 character non-terminated string,
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* like "PASS", "COAL", "OIL_". New ones can be defined by NewGRFs */
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char *cargo_label = MallocT<char>(sizeof(cargo->label) + 1);
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for (uint i = 0; i < sizeof(cargo->label); i++) {
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cargo_label[i] = GB(cargo->label, (uint8)(sizeof(cargo->label) - i - 1) * 8, 8);
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}
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cargo_label[sizeof(cargo->label)] = '\0';
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return cargo_label;
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}
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/* static */ bool ScriptCargo::IsFreight(CargoID cargo_type)
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{
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if (!IsValidCargo(cargo_type)) return false;
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const CargoSpec *cargo = ::CargoSpec::Get(cargo_type);
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return cargo->is_freight;
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}
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/* static */ bool ScriptCargo::HasCargoClass(CargoID cargo_type, CargoClass cargo_class)
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{
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if (!IsValidCargo(cargo_type)) return false;
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return ::IsCargoInClass(cargo_type, (::CargoClass)cargo_class);
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}
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/* static */ ScriptCargo::TownEffect ScriptCargo::GetTownEffect(CargoID cargo_type)
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{
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if (!IsValidCargo(cargo_type)) return TE_NONE;
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return (ScriptCargo::TownEffect)::CargoSpec::Get(cargo_type)->town_effect;
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}
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/* static */ Money ScriptCargo::GetCargoIncome(CargoID cargo_type, uint32 distance, uint32 days_in_transit)
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{
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if (!IsValidCargo(cargo_type)) return -1;
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return ::GetTransportedGoodsIncome(1, distance, Clamp(days_in_transit * 2 / 5, 0, 255), cargo_type);
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}
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/* static */ ScriptCargo::DistributionType ScriptCargo::GetDistributionType(CargoID cargo_type)
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{
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if (!ScriptCargo::IsValidCargo(cargo_type)) return INVALID_DISTRIBUTION_TYPE;
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return (ScriptCargo::DistributionType)_settings_game.linkgraph.GetDistributionType(cargo_type);
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}
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/* static */ int64 ScriptCargo::GetWeight(CargoID cargo_type, uint32 amount)
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{
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if (!IsValidCargo(cargo_type)) return -1;
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return ::CargoSpec::Get(cargo_type)->weight * static_cast<int64>(amount) / 16;
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}
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