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authorPeter Nelson <peter1138@openttd.org>2019-02-15 16:50:04 +0000
committerMichael Lutz <michi@icosahedron.de>2019-03-08 16:52:08 +0100
commit7ca1793ec4d75c99de41dc27431c3b9c8353d7a1 (patch)
tree4f0e8b42a0ef18404e580f277c91c9b300bc0a55 /src
parentb8a0107ad157e946c46a4e65cb3f63bec1812670 (diff)
downloadopenttd-7ca1793ec4d75c99de41dc27431c3b9c8353d7a1.tar.xz
Change: Automatically use Trackdir node key as needed if ship curve penalties differ.
Diffstat (limited to 'src')
-rw-r--r--src/pathfinder/yapf/yapf_ship.cpp14
1 files changed, 12 insertions, 2 deletions
diff --git a/src/pathfinder/yapf/yapf_ship.cpp b/src/pathfinder/yapf/yapf_ship.cpp
index c71bf8af5..63abd592e 100644
--- a/src/pathfinder/yapf/yapf_ship.cpp
+++ b/src/pathfinder/yapf/yapf_ship.cpp
@@ -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
}