(svn r16393) -Codechange: move VehicleRail to Train.

This commit is contained in:
rubidium
2009-05-22 22:55:41 +00:00
parent 6350648a6c
commit 4c0542c17f
18 changed files with 136 additions and 136 deletions

View File

@@ -259,6 +259,40 @@ void TrainConsistChanged(Train *v, bool same_length);
void TrainPowerChanged(Train *v);
Money GetTrainRunningCost(const Train *v);
/** Variables that are cached to improve performance and such */
struct TrainCache {
/* Cached wagon override spritegroup */
const struct SpriteGroup *cached_override;
uint16 last_speed; // NOSAVE: only used in UI
/* cached values, recalculated on load and each time a vehicle is added to/removed from the consist. */
uint32 cached_power; ///< total power of the consist.
uint16 cached_max_speed; ///< max speed of the consist. (minimum of the max speed of all vehicles in the consist)
uint16 cached_total_length; ///< Length of the whole train, valid only for first engine.
uint8 cached_veh_length; ///< length of this vehicle in units of 1/8 of normal length, cached because this can be set by a callback
bool cached_tilt; ///< train can tilt; feature provides a bonus in curves
/* cached values, recalculated when the cargo on a train changes (in addition to the conditions above) */
uint32 cached_weight; ///< total weight of the consist.
uint32 cached_veh_weight; ///< weight of the vehicle.
uint32 cached_max_te; ///< max tractive effort of consist
/**
* Position/type of visual effect.
* bit 0 - 3 = position of effect relative to vehicle. (0 = front, 8 = centre, 15 = rear)
* bit 4 - 5 = type of effect. (0 = default for engine class, 1 = steam, 2 = diesel, 3 = electric)
* bit 6 = disable visual effect.
* bit 7 = disable powered wagons.
*/
byte cached_vis_effect;
byte user_def_data;
/* NOSAVE: for wagon override - id of the first engine in train
* 0xffff == not in train */
EngineID first_engine;
};
/**
* This class 'wraps' Vehicle; you do not actually instantiate this class.
* You create a Vehicle using AllocateVehicle, so it is added to the pool
@@ -268,6 +302,8 @@ Money GetTrainRunningCost(const Train *v);
* As side-effect the vehicle type is set correctly.
*/
struct Train : public Vehicle {
TrainCache tcache;
/* Link between the two ends of a multiheaded engine */
Train *other_multiheaded_part;
@@ -292,8 +328,8 @@ struct Train : public Vehicle {
void PlayLeaveStationSound() const;
bool IsPrimaryVehicle() const { return IsFrontEngine(this); }
SpriteID GetImage(Direction direction) const;
int GetDisplaySpeed() const { return this->u.rail.last_speed; }
int GetDisplayMaxSpeed() const { return this->u.rail.cached_max_speed; }
int GetDisplaySpeed() const { return this->tcache.last_speed; }
int GetDisplayMaxSpeed() const { return this->tcache.cached_max_speed; }
Money GetRunningCost() const;
bool IsInDepot() const { return CheckTrainInDepot(this, false) != -1; }
bool IsStoppedInDepot() const { return CheckTrainStoppedInDepot(this) >= 0; }