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Code Issues

(svn r11200) -Fix [FS#1291]: road vehicles could not overtake on one way roads going to the east.

release/0.6
rubidium 2007-10-04 20:16:35 +00:00
parent 791d68325b
commit 07f8b91a18
1 changed files with 13 additions and 6 deletions
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19
src/roadveh_cmd.cpp
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@ -998,7 +998,7 @@ struct OvertakeData {
const Vehicle* u;
const Vehicle* v;
TileIndex tile;
byte tilebits;
uint16 tilebits;
};
static void* EnumFindVehToOvertake(Vehicle* v, void* data)
@ -1014,9 +1014,10 @@ static bool FindRoadVehToOvertake(OvertakeData *od)
{
uint32 bits;
bits = GetTileTrackStatus(od->tile, TRANSPORT_ROAD, od->v->u.road.compatible_roadtypes) & 0x3F;
bits = GetTileTrackStatus(od->tile, TRANSPORT_ROAD, od->v->u.road.compatible_roadtypes);
bits |= bits >> 8;
if (!(od->tilebits & bits) || (bits & 0x3C) || (bits & 0x3F3F0000))
if (!(od->tilebits & bits) || (bits & 0x3C3C) || (bits & 0x3F3F0000))
return true;
return VehicleFromPos(od->tile, od, EnumFindVehToOvertake) != NULL;
}
@ -1024,7 +1025,7 @@ static bool FindRoadVehToOvertake(OvertakeData *od)
static void RoadVehCheckOvertake(Vehicle *v, Vehicle *u)
{
OvertakeData od;
byte tt;
uint16 tt;
od.v = v;
od.u = u;
@ -1038,6 +1039,9 @@ static void RoadVehCheckOvertake(Vehicle *v, Vehicle *u)
/* Trams can't overtake other trams */
if (v->u.road.roadtype == ROADTYPE_TRAM) return;
/* Don't overtake in stations */
if (IsTileType(v->tile, MP_STATION)) return;
/* For now, articulated road vehicles can't overtake anything. */
if (RoadVehHasArticPart(v)) return;
@ -1046,7 +1050,10 @@ static void RoadVehCheckOvertake(Vehicle *v, Vehicle *u)
/* Check if vehicle is in a road stop, depot, tunnel or bridge or not on a straight road */
if (v->u.road.state >= RVSB_IN_ROAD_STOP || !IsStraightRoadTrackdir((Trackdir)(v->u.road.state & RVSB_TRACKDIR_MASK))) return;
tt = GetTileTrackStatus(v->tile, TRANSPORT_ROAD, v->u.road.compatible_roadtypes) & 0x3F;
tt = GetTileTrackStatus(v->tile, TRANSPORT_ROAD, v->u.road.compatible_roadtypes);
tt |= tt >> 8;
tt &= 0x3F;
if ((tt & 3) == 0) return;
if ((tt & 0x3C) != 0) return;
@ -1647,9 +1654,9 @@ again:
Vehicle* u = RoadVehFindCloseTo(v, x, y, new_dir);
if (u != NULL) {
v->cur_speed = u->cur_speed;
/* There is a vehicle in front overtake it if possible */
if (v->u.road.overtaking == 0) RoadVehCheckOvertake(v, u);
if (v->u.road.overtaking == 0) v->cur_speed = u->cur_speed;
return false;
}
}