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76 lines
3.5 KiB
C++
76 lines
3.5 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 ship.h Base for ships. */
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#ifndef SHIP_H
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#define SHIP_H
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#include <array>
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#include "vehicle_base.h"
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#include "water_map.h"
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#include "core/ring_buffer.hpp"
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extern const DiagDirection _ship_search_directions[TRACK_END][DIAGDIR_END];
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void GetShipSpriteSize(EngineID engine, uint &width, uint &height, int &xoffs, int &yoffs, EngineImageType image_type);
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WaterClass GetEffectiveWaterClass(TileIndex tile);
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typedef ring_buffer<Trackdir> ShipPathCache;
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/** Maximum segments of ship path cache */
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static const uint8_t SHIP_PATH_CACHE_LENGTH = 32;
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static const uint8_t SHIP_PATH_CACHE_MASK = (SHIP_PATH_CACHE_LENGTH - 1);
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static_assert((SHIP_PATH_CACHE_LENGTH & SHIP_PATH_CACHE_MASK) == 0, ""); // Must be a power of 2
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/**
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* All ships have this type.
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*/
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struct Ship final : public SpecializedVehicle<Ship, VEH_SHIP> {
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TrackBits state; ///< The "track" the ship is following.
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ShipPathCache cached_path; ///< Cached path.
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Direction rotation; ///< Visible direction.
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int16_t rotation_x_pos; ///< NOSAVE: X Position before rotation.
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int16_t rotation_y_pos; ///< NOSAVE: Y Position before rotation.
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uint8_t lost_count; ///< Count of number of failed pathfinder attempts
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byte critical_breakdown_count; ///< Counter for the number of critical breakdowns since last service
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/** We don't want GCC to zero our struct! It already is zeroed and has an index! */
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Ship() : SpecializedVehicleBase() {}
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/** We want to 'destruct' the right class. */
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virtual ~Ship() { this->PreDestructor(); }
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void MarkDirty() override;
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void UpdateDeltaXY() override;
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ExpensesType GetExpenseType(bool income) const override { return income ? EXPENSES_SHIP_REVENUE : EXPENSES_SHIP_RUN; }
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void PlayLeaveStationSound(bool force = false) const override;
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bool IsPrimaryVehicle() const override { return this->Previous() == nullptr; }
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void GetImage(Direction direction, EngineImageType image_type, VehicleSpriteSeq *result) const override;
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Direction GetMapImageDirection() const { return this->rotation; }
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int GetDisplaySpeed() const override{ return this->cur_speed / 2; }
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int GetDisplayMaxSpeed() const override{ return this->vcache.cached_max_speed / 2; }
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int GetEffectiveMaxSpeed() const;
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int GetDisplayEffectiveMaxSpeed() const { return this->GetEffectiveMaxSpeed() / 2; }
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int GetCurrentMaxSpeed() const override { return std::min<int>(this->GetEffectiveMaxSpeed(), this->current_order.GetMaxSpeed() * 2); }
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Money GetRunningCost() const override;
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bool IsInDepot() const override { return this->state == TRACK_BIT_DEPOT; }
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bool Tick() override;
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void OnNewDay() override;
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void OnPeriodic() override;
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Trackdir GetVehicleTrackdir() const override;
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TileIndex GetOrderStationLocation(StationID station) override;
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TileIndex GetCargoTile() const override { return this->First()->tile; }
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ClosestDepot FindClosestDepot() override;
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void UpdateCache();
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void SetDestTile(TileIndex tile) override;
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};
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bool IsShipDestinationTile(TileIndex tile, StationID station);
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#endif /* SHIP_H */
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