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@@ -1211,7 +1211,7 @@ Track NPFShipChooseTrack(const Ship *v,
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return TrackdirToTrack(ftd.best_trackdir);
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}
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bool NPFShipCheckReverse(const Ship *v)
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bool NPFShipCheckReverse(const Ship *v, Trackdir *best_td)
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{
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NPFFindStationOrTileData fstd;
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NPFFoundTargetData ftd;
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@@ -1224,7 +1224,21 @@ bool NPFShipCheckReverse(const Ship *v)
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assert(trackdir_rev != INVALID_TRACKDIR);
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AyStarUserData user = { v->owner, TRANSPORT_WATER, RAILTYPES_NONE, ROADTYPES_NONE, 0 };
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ftd = NPFRouteToStationOrTileTwoWay(v->tile, trackdir, false, v->tile, trackdir_rev, false, &fstd, &user);
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if (best_td != nullptr) {
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TrackdirBits rtds = DiagdirReachesTrackdirs(ReverseDiagDir(VehicleExitDir(v->direction, v->state)));
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Trackdir best = (Trackdir)FindFirstBit2x64(rtds);
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for (rtds = KillFirstBit(rtds); rtds != TRACKDIR_BIT_NONE; rtds = KillFirstBit(rtds)) {
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Trackdir td = (Trackdir)FindFirstBit2x64(rtds);
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ftd = NPFRouteToStationOrTileTwoWay(v->tile, best, false, v->tile, td, false, &fstd, &user);
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if (ftd.best_bird_dist == 0 && NPFGetFlag(&ftd.node, NPF_FLAG_REVERSE)) best = td;
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}
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if (ftd.best_bird_dist == 0) {
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*best_td = best;
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return true;
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}
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} else {
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ftd = NPFRouteToStationOrTileTwoWay(v->tile, trackdir, false, v->tile, trackdir_rev, false, &fstd, &user);
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}
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/* If we didn't find anything, just keep on going straight ahead, otherwise take the reverse flag */
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return ftd.best_bird_dist == 0 && NPFGetFlag(&ftd.node, NPF_FLAG_REVERSE);
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}
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