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(svn r1696) Use GetTileSlope() instead of FindLandscapeHeightByTile() where it is sufficient. FindLandscapeHeightByTile() uses GetTileSlope() internally and adds some more info, which is discarded in these cases.

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While touching the code make a bit more clear how GetBridgeHeight() works.
This commit is contained in:
tron
2005-01-27 12:52:20 +00:00
parent 697b619ac1
commit 372b9cb827
3 changed files with 10 additions and 19 deletions
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8
train_cmd.c
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@@ -2049,13 +2049,13 @@ static bool CheckCompatibleRail(const Vehicle *v, TileIndex tile)
case MP_TUNNELBRIDGE:
if ((_map5[tile] & 0xC0) == 0xC0) { // is bridge middle part?
TileInfo ti;
FindLandscapeHeightByTile(&ti, tile);
uint height;
uint tileh = GetTileSlope(tile, &height);
// correct Z position of a train going under a bridge on slopes
if (CORRECT_Z(ti.tileh)) ti.z += 8;
if (CORRECT_Z(tileh)) height += 8;
if (v->z_pos != ti.z) return true; // train is going over bridge
if (v->z_pos != height) return true; // train is going over bridge
}
break;