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(svn r3419) - Fix: [FS#40] (Possible) game crash on removing track/road under bridge. This was caused by a wrong tile-occupancy testing where it was assumed that a vehicle's height is only a multitude of 8 (a single height-difference). This is incorrect as a vehicle on a slope will assume all height levels between the lower-and upper-bounds. The crash is still possible as seen in the Flyspray bugreport but this has a different cause.

This commit is contained in:
Darkvater 2006-01-22 17:17:11 +00:00
parent cc7a9d1ce6
commit 188352ea3e
1 changed files with 4 additions and 4 deletions
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8
vehicle.c
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@ -128,8 +128,8 @@ static void *EnsureNoVehicleProcZ(Vehicle *v, void *data)
{
const TileInfo *ti = data;
if (v->tile != ti->tile || v->z_pos != ti->z || v->type == VEH_Disaster)
return NULL;
if (v->tile != ti->tile || v->type == VEH_Disaster) return NULL;
if (v->z_pos != ti->z && abs(ti->z - v->z_pos) >= 8) return NULL;
VehicleInTheWayErrMsg(v);
return v;
@ -151,8 +151,8 @@ bool EnsureNoVehicleZ(TileIndex tile, byte z)
{
TileInfo ti;
FindLandscapeHeightByTile(&ti, tile);
ti.z = z + Correct_Z(ti.tileh);
ti.tile = tile;
ti.z = z + GetCorrectTileHeight(tile);
return VehicleFromPos(tile, &ti, EnsureNoVehicleProcZ) == NULL;
}