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117 lines
2.9 KiB
C++
117 lines
2.9 KiB
C++
/*
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* PathfindingRules.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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struct CDestinationNodeInfo;
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struct PathNodeInfo;
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class CPathfinderHelper;
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class PathfinderConfig;
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class IPathfindingRule
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{
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public:
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virtual ~IPathfindingRule() = default;
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virtual void process(
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const PathNodeInfo & source,
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CDestinationNodeInfo & destination,
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const PathfinderConfig * pathfinderConfig,
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CPathfinderHelper * pathfinderHelper) const = 0;
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};
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class DLL_LINKAGE MovementCostRule : public IPathfindingRule
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{
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public:
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void process(
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const PathNodeInfo & source,
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CDestinationNodeInfo & destination,
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const PathfinderConfig * pathfinderConfig,
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CPathfinderHelper * pathfinderHelper) const override;
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};
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class DLL_LINKAGE LayerTransitionRule : public IPathfindingRule
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{
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public:
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void process(
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const PathNodeInfo & source,
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CDestinationNodeInfo & destination,
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const PathfinderConfig * pathfinderConfig,
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CPathfinderHelper * pathfinderHelper) const override;
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};
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class DLL_LINKAGE DestinationActionRule : public IPathfindingRule
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{
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public:
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void process(
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const PathNodeInfo & source,
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CDestinationNodeInfo & destination,
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const PathfinderConfig * pathfinderConfig,
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CPathfinderHelper * pathfinderHelper) const override;
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};
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class DLL_LINKAGE PathfinderBlockingRule : public IPathfindingRule
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{
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public:
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void process(
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const PathNodeInfo & source,
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CDestinationNodeInfo & destination,
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const PathfinderConfig * pathfinderConfig,
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CPathfinderHelper * pathfinderHelper) const override;
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protected:
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enum class BlockingReason
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{
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NONE = 0,
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SOURCE_GUARDED = 1,
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DESTINATION_GUARDED = 2,
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SOURCE_BLOCKED = 3,
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DESTINATION_BLOCKED = 4,
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DESTINATION_BLOCKVIS = 5,
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DESTINATION_VISIT = 6
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};
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virtual BlockingReason getBlockingReason(
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const PathNodeInfo & source,
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const CDestinationNodeInfo & destination,
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const PathfinderConfig * pathfinderConfig,
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const CPathfinderHelper * pathfinderHelper) const = 0;
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};
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class DLL_LINKAGE MovementAfterDestinationRule : public PathfinderBlockingRule
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{
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public:
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void process(
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const PathNodeInfo & source,
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CDestinationNodeInfo & destination,
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const PathfinderConfig * pathfinderConfig,
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CPathfinderHelper * pathfinderHelper) const override;
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protected:
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BlockingReason getBlockingReason(
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const PathNodeInfo & source,
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const CDestinationNodeInfo & destination,
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const PathfinderConfig * pathfinderConfig,
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const CPathfinderHelper * pathfinderHelper) const override;
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};
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class DLL_LINKAGE MovementToDestinationRule : public PathfinderBlockingRule
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{
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protected:
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BlockingReason getBlockingReason(
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const PathNodeInfo & source,
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const CDestinationNodeInfo & destination,
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const PathfinderConfig * pathfinderConfig,
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const CPathfinderHelper * pathfinderHelper) const override;
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};
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VCMI_LIB_NAMESPACE_END
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