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113 lines
4.1 KiB
C++
113 lines
4.1 KiB
C++
/*
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* PathfinderOptions.h, part of VCMI engine
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*
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* Authors: listed in file AUTHORS in main folder
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*
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* License: GNU General Public License v2.0 or later
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* Full text of license available in license.txt file, in main folder
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*
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*/
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#pragma once
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VCMI_LIB_NAMESPACE_BEGIN
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class INodeStorage;
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class IPathfindingRule;
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class CPathfinderHelper;
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class CGameState;
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class CGHeroInstance;
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struct PathNodeInfo;
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struct CPathsInfo;
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struct DLL_LINKAGE PathfinderOptions
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{
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bool useFlying;
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bool useWaterWalking;
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bool ignoreGuards;
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bool useEmbarkAndDisembark;
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bool useTeleportTwoWay; // Two-way monoliths and Subterranean Gate
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bool useTeleportOneWay; // One-way monoliths with one known exit only
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bool useTeleportOneWayRandom; // One-way monoliths with more than one known exit
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bool useTeleportWhirlpool; // Force enabled if hero protected or unaffected (have one stack of one creature)
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/// TODO: Find out with client and server code, merge with normal teleporters.
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/// Likely proper implementation would require some refactoring of CGTeleport.
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/// So for now this is unfinished and disabled by default.
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bool useCastleGate;
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/// If true transition into air layer only possible from initial node.
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/// This is drastically decrease path calculation complexity (and time).
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/// Downside is less MP effective paths calculation.
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///
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/// TODO: If this option end up useful for slow devices it's can be improved:
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/// - Allow transition into air layer not only from initial position, but also from teleporters.
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/// Movement into air can be also allowed when hero disembarked.
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/// - Other idea is to allow transition into air within certain radius of N tiles around hero.
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/// Patrol support need similar functionality so it's won't be ton of useless code.
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/// Such limitation could be useful as it's can be scaled depend on device performance.
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bool lightweightFlyingMode;
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/// This option enable one turn limitation for flying and water walking.
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/// So if we're out of MP while cp is blocked or water tile we won't add dest tile to queue.
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///
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/// Following imitation is default H3 mechanics, but someone may want to disable it in mods.
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/// After all this limit should benefit performance on maps with tons of water or blocked tiles.
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///
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/// TODO:
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/// - Behavior when option is disabled not implemented and will lead to crashes.
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bool oneTurnSpecialLayersLimit;
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/// VCMI have different movement rules to solve flaws original engine has.
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/// If this option enabled you'll able to do following things in fly:
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/// - Move from blocked tiles to visitable one
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/// - Move from guarded tiles to blockvis tiles without being attacked
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/// - Move from guarded tiles to guarded visitable tiles with being attacked after
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/// TODO:
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/// - Option should also allow same tile land <-> air layer transitions.
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/// Current implementation only allow go into (from) air layer only to neighbour tiles.
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/// I find it's reasonable limitation, but it's will make some movements more expensive than in H3.
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bool originalMovementRules;
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/// Max number of turns to compute. Default = infinite
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uint8_t turnLimit;
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/// <summary>
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/// For AI. Allows water walk and fly layers if hero can cast appropriate spells
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/// </summary>
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bool canUseCast;
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PathfinderOptions();
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};
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class DLL_LINKAGE PathfinderConfig
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{
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public:
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std::shared_ptr<INodeStorage> nodeStorage;
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std::vector<std::shared_ptr<IPathfindingRule>> rules;
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PathfinderOptions options;
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PathfinderConfig(
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std::shared_ptr<INodeStorage> nodeStorage,
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std::vector<std::shared_ptr<IPathfindingRule>> rules);
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virtual ~PathfinderConfig() = default;
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virtual CPathfinderHelper * getOrCreatePathfinderHelper(const PathNodeInfo & source, CGameState * gs) = 0;
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};
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class DLL_LINKAGE SingleHeroPathfinderConfig : public PathfinderConfig
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{
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private:
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std::unique_ptr<CPathfinderHelper> pathfinderHelper;
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public:
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SingleHeroPathfinderConfig(CPathsInfo & out, CGameState * gs, const CGHeroInstance * hero);
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virtual ~SingleHeroPathfinderConfig();
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virtual CPathfinderHelper * getOrCreatePathfinderHelper(const PathNodeInfo & source, CGameState * gs) override;
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static std::vector<std::shared_ptr<IPathfindingRule>> buildRuleSet();
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};
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VCMI_LIB_NAMESPACE_END
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