CPathfinder: add lightweightFlyingMode option suggested by @alexvins

vcmi · Nov 4, 2015 · 1bc3353 · 1bc3353
1 parent 330c166
commit 1bc3353
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Showing 2 changed files with 12 additions and 0 deletions.
diff --git a/lib/CPathfinder.cpp b/lib/CPathfinder.cpp
@@ -27,6 +27,8 @@ CPathfinder::PathfinderOptions::PathfinderOptions()
 	useTeleportOneWay = true;
 	useTeleportOneWayRandom = false;
 	useTeleportWhirlpool = false;
+
+	lightweightFlyingMode = false;
 }
 
 CPathfinder::CPathfinder(CPathsInfo &_out, CGameState *_gs, const CGHeroInstance *_hero) : CGameInfoCallback(_gs, boost::optional<PlayerColor>()), out(_out), hero(_hero), FoW(getPlayerTeam(hero->tempOwner)->fogOfWarMap)
@@ -232,6 +234,11 @@ bool CPathfinder::isLayerTransitionPossible()
 	{
 		return false;
 	}
+	else if(cp->layer == EPathfindingLayer::LAND && dp->layer == EPathfindingLayer::AIR)
+	{
+		if(options.lightweightFlyingMode && cp->coord != hero->getPosition(false))
+			return false;
+	}
 	else if(cp->layer == EPathfindingLayer::SAIL && dp->layer != EPathfindingLayer::LAND)
 		return false;
 	else if(cp->layer == EPathfindingLayer::SAIL && dp->layer == EPathfindingLayer::LAND)

diff --git a/lib/CPathfinder.h b/lib/CPathfinder.h
@@ -85,6 +85,11 @@ class CPathfinder : private CGameInfoCallback
 		bool useTeleportOneWayRandom; // One-way monoliths with more than one known exit
 		bool useTeleportWhirlpool; // Force enabled if hero protected or unaffected (have one stack of one creature)
 
+		/// If true transition into air layer only possible from initial node.
+		/// This is drastically decrease path calculation complexity (and time).
+		/// Downside is less MP effective paths calculation.
+		bool lightweightFlyingMode;
+
 		PathfinderOptions();
 	} options;