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/* $Id$ */
/** @file newgrf_engine.h */
#ifndef NEWGRF_ENGINE_H
#define NEWGRF_ENGINE_H
#include "newgrf.h"
#include "direction.h"
#include "newgrf_cargo.h"
extern int _traininfo_vehicle_pitch;
extern int _traininfo_vehicle_width;
void SetWagonOverrideSprites(EngineID engine, CargoID cargo, const struct SpriteGroup *group, byte *train_id, int trains);
const SpriteGroup *GetWagonOverrideSpriteSet(EngineID engine, CargoID cargo, byte overriding_engine);
void SetCustomEngineSprites(EngineID engine, byte cargo, const struct SpriteGroup *group);
void SetRotorOverrideSprites(EngineID engine, const struct SpriteGroup *group);
SpriteID GetCustomEngineSprite(EngineID engine, const Vehicle* v, Direction direction);
SpriteID GetRotorOverrideSprite(EngineID engine, const Vehicle* v, bool info_view);
#define GetCustomRotorSprite(v, i) GetRotorOverrideSprite(v->engine_type, v, i)
#define GetCustomRotorIcon(et) GetRotorOverrideSprite(et, NULL, true)
/* Forward declaration of GRFFile, to avoid unnecessary inclusion of newgrf.h
* elsewhere... */
struct GRFFile;
void SetEngineGRF(EngineID engine, const struct GRFFile *file);
const struct GRFFile *GetEngineGRF(EngineID engine);
uint32 GetEngineGRFID(EngineID engine);
uint16 GetVehicleCallback(uint16 callback, uint32 param1, uint32 param2, EngineID engine, const Vehicle *v);
uint16 GetVehicleCallbackParent(uint16 callback, uint32 param1, uint32 param2, EngineID engine, const Vehicle *v, const Vehicle *parent);
bool UsesWagonOverride(const Vehicle *v);
#define GetCustomVehicleSprite(v, direction) GetCustomEngineSprite(v->engine_type, v, direction)
#define GetCustomVehicleIcon(et, direction) GetCustomEngineSprite(et, NULL, direction)
/* Handler to Evaluate callback 36. If the callback fails (i.e. most of the
* time) orig_value is returned */
uint GetVehicleProperty(const Vehicle *v, uint8 property, uint orig_value);
uint GetEngineProperty(EngineID engine, uint8 property, uint orig_value);
enum VehicleTrigger {
VEHICLE_TRIGGER_NEW_CARGO = 1,
/* Externally triggered only for the first vehicle in chain */
VEHICLE_TRIGGER_DEPOT = 2,
/* Externally triggered only for the first vehicle in chain, only if whole chain is empty */
VEHICLE_TRIGGER_EMPTY = 4,
/* Not triggered externally (called for the whole chain if we got NEW_CARGO) */
VEHICLE_TRIGGER_ANY_NEW_CARGO = 8,
};
void TriggerVehicle(Vehicle *veh, VehicleTrigger trigger);
void SetCustomEngineName(EngineID engine, StringID name);
StringID GetCustomEngineName(EngineID engine);
void UnloadWagonOverrides();
void UnloadRotorOverrideSprites();
void UnloadCustomEngineSprites();
void UnloadCustomEngineNames();
void ResetEngineListOrder();
EngineID GetRailVehAtPosition(EngineID pos);
uint16 ListPositionOfEngine(EngineID engine);
void AlterRailVehListOrder(EngineID engine, EngineID target);
#endif /* NEWGRF_ENGINE_H */
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