(svn r21123) -Codechange: Remove max_speed from the Vehicle class.

src/aircraft_cmd.cpp

@@ -269,7 +269,6 @@ CommandCost CmdBuildAircraft(TileIndex tile, DoCommandFlag flags, const Engine *
 		v->name = NULL;
 		v->last_station_visited = INVALID_STATION;
 
-		v->max_speed = avi->max_speed;
 		v->acceleration = avi->acceleration;
 		v->engine_type = e->index;
 		u->engine_type = e->index;

src/articulated_vehicles.cpp

@@ -380,7 +380,6 @@ void AddArticulatedParts(Vehicle *first)
 		v->vehstatus = first->vehstatus & ~VS_STOPPED;
 
 		v->cargo_subtype = 0;
-		v->max_speed = 0;
 		v->max_age = 0;
 		v->engine_type = engine_type;
 		v->value = 0;

src/roadveh_cmd.cpp

@@ -232,7 +232,6 @@ CommandCost CmdBuildRoadVehicle(TileIndex tile, DoCommandFlag flags, const Engin
 		v->cargo_cap = rvi->capacity;
 
 		v->last_station_visited = INVALID_STATION;
-		v->max_speed = rvi->max_speed;
 		v->engine_type = e->index;
 		v->rcache.first_engine = INVALID_ENGINE; // needs to be set before first callback
 

src/saveload/afterload.cpp

@@ -1340,7 +1340,6 @@ bool AfterLoadGame()
 				const AircraftVehicleInfo *avi = AircraftVehInfo(v->engine_type);
 				v->cur_speed *= 128;
 				v->cur_speed /= 10;
-				v->max_speed = avi->max_speed;
 				v->acceleration = avi->acceleration;
 			}
 		}

src/saveload/oldloader_sl.cpp

@@ -1133,8 +1133,8 @@ static const OldChunks vehicle_chunk[] = {
 	OCL_SVAR( OC_UINT16, Vehicle, service_interval ),
 	OCL_SVAR( OC_FILE_U8 | OC_VAR_U16, Vehicle, last_station_visited ),
 	OCL_SVAR( OC_TTD | OC_UINT8, Vehicle, tick_counter ),
-	OCL_SVAR( OC_TTD | OC_UINT16, Vehicle, max_speed ),
-	OCL_SVAR( OC_TTO | OC_FILE_U8 | OC_VAR_U16, Vehicle, max_speed ),
+	OCL_CNULL( OC_TTD, 2 ), ///< max_speed, now it is calculated.
+	OCL_CNULL( OC_TTO, 1 ), ///< max_speed, now it is calculated.
 
 	OCL_SVAR( OC_FILE_U16 | OC_VAR_I32, Vehicle, x_pos ),
 	OCL_SVAR( OC_FILE_U16 | OC_VAR_I32, Vehicle, y_pos ),

src/saveload/vehicle_sl.cpp

@@ -180,7 +180,8 @@ void UpdateOldAircraft()
 
 			AircraftLeaveHangar(a); // make airplane visible if it was in a depot for example
 			a->vehstatus &= ~VS_STOPPED; // make airplane moving
-			a->cur_speed = a->max_speed; // so aircraft don't have zero speed while in air
+			UpdateAircraftCache(a);
+			a->cur_speed = a->vcache.cached_max_speed; // so aircraft don't have zero speed while in air
 			if (!a->current_order.IsType(OT_GOTO_STATION) && !a->current_order.IsType(OT_GOTO_DEPOT)) {
 				/* reset current order so aircraft doesn't have invalid "station-only" order */
 				a->current_order.MakeDummy();
@@ -443,7 +444,7 @@ const SaveLoad *GetVehicleDescription(VehicleType vt)
 		SLE_CONDNULL(5,                                                            0,  57),
 		     SLE_VAR(Vehicle, engine_type,           SLE_UINT16),
 
-		     SLE_VAR(Vehicle, max_speed,             SLE_UINT16),
+		SLE_CONDNULL(2,                                                            0,  151),
 		     SLE_VAR(Vehicle, cur_speed,             SLE_UINT16),
 		     SLE_VAR(Vehicle, subspeed,              SLE_UINT8),
 		     SLE_VAR(Vehicle, acceleration,          SLE_UINT8),

src/ship_cmd.cpp

@@ -155,7 +155,7 @@ static void CheckIfShipNeedsService(Vehicle *v)
 
 void Ship::UpdateCache()
 {
-	this->vcache.cached_max_speed = GetVehicleProperty(this, PROP_SHIP_SPEED, this->max_speed);
+	this->vcache.cached_max_speed = GetVehicleProperty(this, PROP_SHIP_SPEED, ShipVehInfo(this->engine_type)->max_speed);
 }
 
 Money Ship::GetRunningCost() const
@@ -604,7 +604,6 @@ CommandCost CmdBuildShip(TileIndex tile, DoCommandFlag flags, const Engine *e, u
 		v->cargo_cap = svi->capacity;
 
 		v->last_station_visited = INVALID_STATION;
-		v->max_speed = svi->max_speed;
 		v->engine_type = e->index;
 
 		v->reliability = e->reliability;

src/train_cmd.cpp

@@ -466,8 +466,6 @@ void Train::UpdateAcceleration()
 {
 	assert(this->IsFrontEngine());
 
-	this->max_speed = this->acc_cache.cached_max_track_speed;
-
 	uint power = this->acc_cache.cached_power;
 	uint weight = this->acc_cache.cached_weight;
 	assert(weight != 0);
@@ -733,7 +731,6 @@ CommandCost CmdBuildRailVehicle(TileIndex tile, DoCommandFlag flags, const Engin
 		v->spritenum = rvi->image_index;
 		v->cargo_type = e->GetDefaultCargoType();
 		v->cargo_cap = rvi->capacity;
-		v->max_speed = rvi->max_speed;
 		v->last_station_visited = INVALID_STATION;
 
 		v->engine_type = e->index;
@@ -2781,14 +2778,16 @@ void Train::MarkDirty()
 int Train::UpdateSpeed()
 {
 	uint accel;
+	uint16 max_speed;
 
 	switch (_settings_game.vehicle.train_acceleration_model) {
 		default: NOT_REACHED();
 		case AM_ORIGINAL:
+			max_speed = this->acc_cache.cached_max_track_speed;
 			accel = this->acceleration * (this->GetAccelerationStatus() == AS_BRAKE ? -4 : 2);
 			break;
 		case AM_REALISTIC:
-			this->max_speed = this->GetCurrentMaxSpeed();
+			max_speed = this->GetCurrentMaxSpeed();
 			accel = this->GetAcceleration();
 			break;
 	}
@@ -2796,8 +2795,8 @@ int Train::UpdateSpeed()
 	uint spd = this->subspeed + accel;
 	this->subspeed = (byte)spd;
 	{
-		int tempmax = this->max_speed;
-		if (this->cur_speed > this->max_speed) {
+		int tempmax = max_speed;
+		if (this->cur_speed > max_speed) {
 			tempmax = this->cur_speed - (this->cur_speed / 10) - 1;
 		}
 		this->cur_speed = spd = Clamp(this->cur_speed + ((int)spd >> 8), 0, tempmax);
@@ -2876,7 +2875,7 @@ static inline void AffectSpeedByZChange(Train *v, byte old_z)
 		v->cur_speed -= (v->cur_speed * rsp->z_up >> 8);
 	} else {
 		uint16 spd = v->cur_speed + rsp->z_down;
-		if (spd <= v->max_speed) v->cur_speed = spd;
+		if (spd <= v->acc_cache.cached_max_track_speed) v->cur_speed = spd;
 	}
 }
 

src/vehicle_base.h

@@ -161,7 +161,6 @@ public:
 	TextEffectID fill_percent_te_id;    ///< a text-effect id to a loading indicator object
 	UnitID unitnumber;                  ///< unit number, for display purposes only
 
-	uint16 max_speed;                   ///< maximum speed
 	uint16 cur_speed;                   ///< current speed
 	byte subspeed;                      ///< fractional speed
 	byte acceleration;                  ///< used by train & aircraft