virtual void OnPlacePresize(Point pt, TileIndex tile_from)
{
DiagDirection dir = GetInclinedSlopeDirection(GetTileSlope(tile_from, NULL));
TileIndex tile_to = (dir != INVALID_DIAGDIR ? TileAddByDiagDir(tile_from, ReverseDiagDir(dir)) : tile_from);
VpSetPresizeRange(tile_from, tile_to);
}
virtual void OnPlacePresize(Point pt, TileIndex tile_from)
{
TileIndex tile_to = tile_from;
if (this->last_clicked_widget == WID_DT_BUILD_AQUEDUCT) {
GetOtherAqueductEnd(tile_from, &tile_to);
} else {
DiagDirection dir = GetInclinedSlopeDirection(GetTileSlope(tile_from));
if (IsValidDiagDirection(dir)) {
/* Locks and docks always select the tile "down" the slope. */
tile_to = TileAddByDiagDir(tile_from, ReverseDiagDir(dir));
/* Locks also select the tile "up" the slope. */
if (this->last_clicked_widget == WID_DT_LOCK) tile_from = TileAddByDiagDir(tile_from, dir);
}
}
VpSetPresizeRange(tile_from, tile_to);
}
