Mercurial > hg > openttd
changeset 8178:682fb03eb247 draft
(svn r11741) -Feature: Add support for NewGRF's train 'tilt' flag. Trains with tilt capability (specific details are per NewGRF set) will be given a 20% speed limit bonus on curves.
| author | peter1138 <peter1138@openttd.org> |
|---|---|
| date | Tue, 01 Jan 2008 22:24:18 +0000 |
| parents | 1471a78e5abc |
| children | a0879dc1b54d |
| files | src/train_cmd.cpp src/vehicle_base.h |
| diffstat | 2 files changed, 11 insertions(+), 0 deletions(-) [+] |
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--- a/src/train_cmd.cpp +++ b/src/train_cmd.cpp @@ -164,12 +164,16 @@ v->u.rail.cached_total_length = 0; v->u.rail.compatible_railtypes = 0; + bool train_can_tilt = true; + for (Vehicle *u = v; u != NULL; u = u->Next()) { const RailVehicleInfo *rvi_u = RailVehInfo(u->engine_type); /* Check the v->first cache. */ assert(u->First() == v); + if (!HasBit(EngInfo(u->engine_type)->misc_flags, EF_RAIL_TILTS)) train_can_tilt = false; + /* update the 'first engine' */ u->u.rail.first_engine = v == u ? INVALID_ENGINE : first_engine; u->u.rail.railtype = rvi_u->railtype; @@ -253,6 +257,7 @@ /* store consist weight/max speed in cache */ v->u.rail.cached_max_speed = max_speed; + v->u.rail.cached_tilt = train_can_tilt; /* recalculate cached weights and power too (we do this *after* the rest, so it is known which wagons are powered and need extra weight added) */ TrainCargoChanged(v); @@ -338,6 +343,11 @@ /* Apply the engine's rail type curve speed advantage, if it slowed by curves */ const RailtypeInfo *rti = GetRailTypeInfo(v->u.rail.railtype); max_speed += (max_speed / 2) * rti->curve_speed; + + if (v->u.rail.cached_tilt) { + /* Apply max_speed bonus of 20% for a tilting train */ + max_speed += max_speed / 5; + } } if (IsTileType(v->tile, MP_STATION) && IsFrontEngine(v)) {
--- a/src/vehicle_base.h +++ b/src/vehicle_base.h @@ -81,6 +81,7 @@ /* cached values, recalculated on load and each time a vehicle is added to/removed from the consist. */ uint16 cached_max_speed; // max speed of the consist. (minimum of the max speed of all vehicles in the consist) uint32 cached_power; // total power of the consist. + bool cached_tilt; // train can tilt; feature provides a bonus in curves 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 uint16 cached_total_length; ///< Length of the whole train, valid only for first engine.