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2005-05-07(svn r2281) - Fix: [ 1115204 ] [NPF] When pressing the goto depot button, ↵matthijs
trains will now also look behind it if there is no depot in front. If so, the train reverses immediately. This also work anywhere, not just at stations. - Add: [NPF] Reversing inside of depots now has a penalty. It also applies to trains only, other vehicles shouldn't bother reversing. - Fix: [NPF] When checking whether to reverse a train, the trackdir of the first loc was used instead of the last vehicle as a starting node for pathfindig. This might have caused some trains not reversing when they should have (or vice versa). Typo introduced when converting to GetVehicleTrackdir() in r2256. - CodeChange: [NPF] Removed duplicate code by letting NPFRouteTjoStationOrTile() call NPFRouteToStationOrTileTwoWay(). - Add: [NPF] NPFRouteToDepotBreadthFirstTwoWay() to find a depot while also looking backwards. - Add: It is now possibly to specify a path cost for aystar starting nodes.
2005-05-02(svn r2255) - Fix: [ 9680363 ] [NPF] Broken buoy handling for shipsmatthijs
Buoys will now try to get within 3 tiles of a buoy instead of a the actual buoy tile. This gets ships to got past buoys in a realistic (IMO) way instead of barging right through them. - Fix: [NPF] Trains get curves penalties sometimes even when the track is straight. - Add: [NPF] Ships get a penalty for going over buoys now, so they will try to go around. - Add: [NPF] Ships get a penalty for curves too, yay for straight lines. - Add: TrackdirToTrack(), TrackToTrackdir(), IsDiagonalTrack() and IsDiagonalTrackdir() helper functions. - Add: IsBuoy() and IsBuoyTile() helper functions. - Codechange: Rearranged part of the control flow of ShipController(), removing a goto.
2005-04-11(svn r2182) - Add: [NPF] There is now a debug class for NPF. Use -d ↵matthijs
npf<level> to enable debugging printouts from npf. - Codechange: [NPF] Removed NPF_MARKROUTE macro, to mark routes just specify a npf debugging level >= 1 on the commandline.
2005-04-07(svn r2165) - Codechange: [NPF] Properly enummed NPF hash size, it is easily ↵matthijs
changable now. - Codechange: [NPF] Improved the NPF hash calculation slightly. - Codechange: [NPF] Increased hash size, should speed up somewhat.
2005-03-08(svn r1963) - Add: [NPF] Penalty for a red signal that is the last signal on ↵matthijs
the path. - Add: [NPF] NPFGetFlag() and NPFSetFlag() to wrap NPF node flag handling
2005-02-06(svn r1834) - Fix: NPF does not check the owner of its target, busses try to ↵matthijs
enter other players' depots. TODO - Add: asserts to find the v->u.rail.track == 0 problem. - Add: IsValidDepot(), IsValidTown(), IsValidSign(), IsValidVehicle(), IsValidStation() - Add: GetTileOwner(), IsTileOwner() - Codechange: Replaced IsShipDepotTile(), IsTrainDepotTile(), IsRoadDepotTile() by IsTileDepotType(). - Codechange: typedeffed the MAP_OWNERS as Owner. Should be used as variable type. - Codechange: Replaced a few uint by TileIndex.
2005-01-31(svn r1751) - Feature: New PathFinder (NPF).matthijs
- Supports trains, road vehicles and ships. - Uses A* pathfinding (same codebase as the new ai). - Currently unlimited search depth, so might perform badly on large maps/networks (especially ships). - Will always find a route if there is one. - Allows custom penalties for obstacles to be set in openttd.cfg (npf_ values). - With NPF enabled, ships can have orders that are very far apart. Be careful, this will break (ships get lost) when the old pathfinder is used again. - Feature: Disabling 90 degree turns for trains and ships. - Requires NPF to be enabled. - Ships and trains can no longer make weird 90 degree turns on tile borders. - Codechange: Removed table/directions.h. - table/directions.h contained ugly static tables but was included more than once. The tables, along with a few new ones are in npf.[ch] now. Better suggestions for a location? - Fix: Binary heap in queue.c did not allocate enough space, resulting in a segfault. - Codechange: Rewritten FindFirstBit2x64, added KillFirstBit2x64. - Codechange: Introduced constant INVALID_TILE, to replace the usage of 0 as an invalid tile. Also replaces TILE_WRAPPED. - Codechange: Moved TileAddWrap() to map.[ch] - Add TileIndexDiffCByDir(), TileIndexDiffCByDir(). - Codechange: Moved IsTrainStationTile() to station.h - Add: IsRoadStationTile() and GetRoadStationDir().