diff --git a/src/ground_vehicle.cpp b/src/ground_vehicle.cpp --- a/src/ground_vehicle.cpp +++ b/src/ground_vehicle.cpp @@ -116,7 +116,7 @@ int GroundVehicle::GetAccelerat resistance += (area * this->acc_cache.cached_air_drag * speed * speed) / 20000; } - resistance += v->GetSlopeResistance(); + resistance += this->GetSlopeResistance(); resistance *= 4; //[N] /* This value allows to know if the vehicle is accelerating or braking. */ diff --git a/src/ground_vehicle.hpp b/src/ground_vehicle.hpp --- a/src/ground_vehicle.hpp +++ b/src/ground_vehicle.hpp @@ -37,6 +37,12 @@ struct AccelerationCache { uint16 cached_max_track_speed; ///< Maximum consist speed limited by track type. }; +/** Ground vehicle flags. */ +enum GroundVehicleFlags { + GVF_GOINGUP_BIT = 0, + GVF_GOINGDOWN_BIT = 1, +}; + /** * Base class for all vehicles that move through ground. * @@ -58,6 +64,7 @@ struct AccelerationCache { template struct GroundVehicle : public SpecializedVehicle { AccelerationCache acc_cache; + uint16 gv_flags; ///< @see GroundVehicleFlags /** * The constructor at SpecializedVehicle must be called. @@ -67,6 +74,25 @@ struct GroundVehicle : public Specialize void PowerChanged(); void CargoChanged(); int GetAcceleration() const; + + /** + * Calculates the total slope resistance for this vehicle. + * @return Slope resistance. + */ + FORCEINLINE int32 GetSlopeResistance() const + { + int32 incl = 0; + + for (const T *u = T::From(this); u != NULL; u = u->Next()) { + if (HasBit(u->gv_flags, GVF_GOINGUP_BIT)) { + incl += u->acc_cache.cached_slope_resistance; + } else if (HasBit(u->gv_flags, GVF_GOINGDOWN_BIT)) { + incl -= u->acc_cache.cached_slope_resistance; + } + } + + return incl; + } }; #endif /* GROUND_VEHICLE_HPP */ diff --git a/src/saveload/afterload.cpp b/src/saveload/afterload.cpp --- a/src/saveload/afterload.cpp +++ b/src/saveload/afterload.cpp @@ -2072,6 +2072,18 @@ bool AfterLoadGame() st->airport.h = st->GetAirportSpec()->size_y; } } + + Train *t; + FOR_ALL_TRAINS(t) { + /* Copy old GOINGUP / GOINGDOWN flags. */ + if (HasBit(t->flags, 1)) { + ClrBit(t->flags, 1); + SetBit(t->gv_flags, GVF_GOINGUP_BIT); + } else if (HasBit(t->flags, 2)) { + ClrBit(t->flags, 2); + SetBit(t->gv_flags, GVF_GOINGDOWN_BIT); + } + } } /* Road stops is 'only' updating some caches */ diff --git a/src/saveload/vehicle_sl.cpp b/src/saveload/vehicle_sl.cpp --- a/src/saveload/vehicle_sl.cpp +++ b/src/saveload/vehicle_sl.cpp @@ -544,6 +544,7 @@ const SaveLoad *GetVehicleDescription(Ve SLE_CONDVAR(Train, wait_counter, SLE_UINT16, 136, SL_MAX_VERSION), SLE_CONDNULL(2, 2, 19), + SLE_CONDVAR(Train, gv_flags, SLE_UINT16, 139, SL_MAX_VERSION), /* reserve extra space in savegame here. (currently 11 bytes) */ SLE_CONDNULL(11, 2, SL_MAX_VERSION), diff --git a/src/train.h b/src/train.h --- a/src/train.h +++ b/src/train.h @@ -24,10 +24,6 @@ struct Train; enum VehicleRailFlags { VRF_REVERSING = 0, - /* used to calculate if train is going up or down */ - VRF_GOINGUP = 1, - VRF_GOINGDOWN = 2, - /* used to store if a wagon is powered or not */ VRF_POWEREDWAGON = 3, @@ -453,25 +449,6 @@ protected: // These functions should not } /** - * Calculates the total slope resistance for this vehicle. - * @return Slope resistance. - */ - FORCEINLINE int32 GetSlopeResistance() const - { - int32 incl = 0; - - for (const Train *u = this; u != NULL; u = u->Next()) { - if (HasBit(u->flags, VRF_GOINGUP)) { - incl += u->acc_cache.cached_slope_resistance; - } else if (HasBit(u->flags, VRF_GOINGDOWN)) { - incl -= u->acc_cache.cached_slope_resistance; - } - } - - return incl; - } - - /** * Allows to know the acceleration type of a vehicle. * @return Acceleration type of the vehicle. */ diff --git a/src/train_cmd.cpp b/src/train_cmd.cpp --- a/src/train_cmd.cpp +++ b/src/train_cmd.cpp @@ -1477,22 +1477,22 @@ static void SwapTrainFlags(uint16 *swap_ uint16 flag2 = *swap_flag2; /* Clear the flags */ - ClrBit(*swap_flag1, VRF_GOINGUP); - ClrBit(*swap_flag1, VRF_GOINGDOWN); - ClrBit(*swap_flag2, VRF_GOINGUP); - ClrBit(*swap_flag2, VRF_GOINGDOWN); + ClrBit(*swap_flag1, GVF_GOINGUP_BIT); + ClrBit(*swap_flag1, GVF_GOINGDOWN_BIT); + ClrBit(*swap_flag2, GVF_GOINGUP_BIT); + ClrBit(*swap_flag2, GVF_GOINGDOWN_BIT); /* Reverse the rail-flags (if needed) */ - if (HasBit(flag1, VRF_GOINGUP)) { - SetBit(*swap_flag2, VRF_GOINGDOWN); - } else if (HasBit(flag1, VRF_GOINGDOWN)) { - SetBit(*swap_flag2, VRF_GOINGUP); - } - if (HasBit(flag2, VRF_GOINGUP)) { - SetBit(*swap_flag1, VRF_GOINGDOWN); - } else if (HasBit(flag2, VRF_GOINGDOWN)) { - SetBit(*swap_flag1, VRF_GOINGUP); - } + if (HasBit(flag1, GVF_GOINGUP_BIT)) { + SetBit(*swap_flag2, GVF_GOINGDOWN_BIT); + } else if (HasBit(flag1, GVF_GOINGDOWN_BIT)) { + SetBit(*swap_flag2, GVF_GOINGUP_BIT); + } + if (HasBit(flag2, GVF_GOINGUP_BIT)) { + SetBit(*swap_flag1, GVF_GOINGDOWN_BIT); + } else if (HasBit(flag2, GVF_GOINGDOWN_BIT)) { + SetBit(*swap_flag1, GVF_GOINGUP_BIT); + } } static void ReverseTrainSwapVeh(Train *v, int l, int r) @@ -1523,7 +1523,7 @@ static void ReverseTrainSwapVeh(Train *v Swap(a->tile, b->tile); Swap(a->z_pos, b->z_pos); - SwapTrainFlags(&a->flags, &b->flags); + SwapTrainFlags(&a->gv_flags, &b->gv_flags); /* update other vars */ a->UpdateViewport(true, true); @@ -2875,8 +2875,8 @@ static byte AfterSetTrainPos(Train *v, b v->z_pos = GetSlopeZ(v->x_pos, v->y_pos); if (new_tile) { - ClrBit(v->flags, VRF_GOINGUP); - ClrBit(v->flags, VRF_GOINGDOWN); + ClrBit(v->gv_flags, GVF_GOINGUP_BIT); + ClrBit(v->gv_flags, GVF_GOINGDOWN_BIT); if (v->track == TRACK_BIT_X || v->track == TRACK_BIT_Y) { /* Any track that isn't TRACK_BIT_X or TRACK_BIT_Y cannot be sloped. @@ -2890,7 +2890,7 @@ static byte AfterSetTrainPos(Train *v, b byte middle_z = GetSlopeZ((v->x_pos & INV_TILE_SIZE_MASK) | HALF_TILE_SIZE, (v->y_pos & INV_TILE_SIZE_MASK) | HALF_TILE_SIZE); if (middle_z != v->z_pos) { - SetBit(v->flags, (middle_z > old_z) ? VRF_GOINGUP : VRF_GOINGDOWN); + SetBit(v->gv_flags, (middle_z > old_z) ? GVF_GOINGUP_BIT : GVF_GOINGDOWN_BIT); } } } diff --git a/src/tunnelbridge_cmd.cpp b/src/tunnelbridge_cmd.cpp --- a/src/tunnelbridge_cmd.cpp +++ b/src/tunnelbridge_cmd.cpp @@ -1473,8 +1473,8 @@ static VehicleEnterTileStatus VehicleEnt case VEH_TRAIN: { Train *t = Train::From(v); t->track = TRACK_BIT_WORMHOLE; - ClrBit(t->flags, VRF_GOINGUP); - ClrBit(t->flags, VRF_GOINGDOWN); + ClrBit(t->gv_flags, GVF_GOINGUP_BIT); + ClrBit(t->gv_flags, GVF_GOINGDOWN_BIT); } break; case VEH_ROAD: