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Change: Automatically use Trackdir node key as needed if ship curve penalties differ.

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This commit is contained in:
Peter Nelson 2019-02-15 16:50:04 +00:00 committed by Michael Lutz
parent b8a0107ad1
commit 7ca1793ec4
1 changed files with 12 additions and 2 deletions
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14
src/pathfinder/yapf/yapf_ship.cpp
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@ -241,6 +241,16 @@ struct CYapfShip1 : CYapfT<CYapfShip_TypesT<CYapfShip1, CFollowTrackWater , C
/* YAPF type 2 - uses TileIndex/DiagDirection as Node key */
struct CYapfShip2 : CYapfT<CYapfShip_TypesT<CYapfShip2, CFollowTrackWater , CShipNodeListExitDir > > {};
static inline bool RequireTrackdirKey()
{
/* If the two curve penalties are not equal, then it is not possible to use the
* ExitDir keyed node list, as it there will be key overlap. Using Trackdir keyed
* nodes means potentially more paths are tested, which would be wasteful if it's
* not necessary.
*/
return _settings_game.pf.yapf.ship_curve45_penalty != _settings_game.pf.yapf.ship_curve90_penalty;
}
/** Ship controller helper - path finder invoker */
Track YapfShipChooseTrack(const Ship *v, TileIndex tile, DiagDirection enterdir, TrackBits tracks, bool &path_found, ShipPathCache &path_cache)
{
@ -249,7 +259,7 @@ Track YapfShipChooseTrack(const Ship *v, TileIndex tile, DiagDirection enterdir,
PfnChooseShipTrack pfnChooseShipTrack = CYapfShip2::ChooseShipTrack; // default: ExitDir
/* check if non-default YAPF type needed */
if (_settings_game.pf.yapf.disable_node_optimization) {
if (_settings_game.pf.yapf.disable_node_optimization || RequireTrackdirKey()) {
pfnChooseShipTrack = &CYapfShip1::ChooseShipTrack; // Trackdir
}
@ -267,7 +277,7 @@ bool YapfShipCheckReverse(const Ship *v)
PfnCheckReverseShip pfnCheckReverseShip = CYapfShip2::CheckShipReverse; // default: ExitDir
/* check if non-default YAPF type needed */
if (_settings_game.pf.yapf.disable_node_optimization) {
if (_settings_game.pf.yapf.disable_node_optimization || RequireTrackdirKey()) {
pfnCheckReverseShip = &CYapfShip1::CheckShipReverse; // Trackdir
}