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117 lines
3.7 KiB
C++
117 lines
3.7 KiB
C++
#ifndef GAME_MWMECHANICS_AIPACKAGE_H
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#define GAME_MWMECHANICS_AIPACKAGE_H
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#include "pathfinding.hpp"
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#include <components/esm/defs.hpp>
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#include "obstacle.hpp"
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#include "aistate.hpp"
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namespace MWWorld
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{
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class Ptr;
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}
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namespace ESM
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{
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struct Cell;
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namespace AiSequence
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{
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struct AiSequence;
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}
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}
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namespace MWMechanics
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{
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class CharacterController;
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/// \brief Base class for AI packages
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class AiPackage
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{
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public:
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///Enumerates the various AITypes availible.
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enum TypeId {
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TypeIdNone = -1,
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TypeIdWander = 0,
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TypeIdTravel = 1,
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TypeIdEscort = 2,
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TypeIdFollow = 3,
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TypeIdActivate = 4,
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TypeIdCombat = 5,
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TypeIdPursue = 6,
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TypeIdAvoidDoor = 7
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};
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///Default constructor
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AiPackage();
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///Default Deconstructor
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virtual ~AiPackage();
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///Clones the package
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virtual AiPackage *clone() const = 0;
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/// Updates and runs the package (Should run every frame)
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/// \return Package completed?
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virtual bool execute (const MWWorld::Ptr& actor, CharacterController& characterController, AiState& state, float duration) = 0;
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/// Returns the TypeID of the AiPackage
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/// \see enum TypeId
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virtual int getTypeId() const = 0;
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/// Higher number is higher priority (0 being the lowest)
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virtual unsigned int getPriority() const {return 0;}
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virtual void writeState (ESM::AiSequence::AiSequence& sequence) const {}
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/// Simulates the passing of time
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virtual void fastForward(const MWWorld::Ptr& actor, AiState& state) {}
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/// Get the target actor the AI is targeted at (not applicable to all AI packages, default return empty Ptr)
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virtual MWWorld::Ptr getTarget();
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/// Return true if having this AiPackage makes the actor side with the target in fights (default false)
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virtual bool sideWithTarget() const;
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/// Return true if the actor should follow the target through teleport doors (default false)
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virtual bool followTargetThroughDoors() const;
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bool isTargetMagicallyHidden(const MWWorld::Ptr& target);
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protected:
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/// Causes the actor to attempt to walk to the specified location
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/** \return If the actor has arrived at his destination **/
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bool pathTo(const MWWorld::Ptr& actor, ESM::Pathgrid::Point dest, float duration);
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virtual bool doesPathNeedRecalc(ESM::Pathgrid::Point dest, const ESM::Cell *cell);
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void evadeObstacles(const MWWorld::Ptr& actor, float duration, const ESM::Position& pos);
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// TODO: all this does not belong here, move into temporary storage
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PathFinder mPathFinder;
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ObstacleCheck mObstacleCheck;
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float mTimer;
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ESM::Pathgrid::Point mPrevDest;
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bool isWithinMaxRange(const osg::Vec3f& pos1, const osg::Vec3f& pos2) const
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{
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// Maximum travel distance for vanilla compatibility.
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// Was likely meant to prevent NPCs walking into non-loaded exterior cells, but for some reason is used in interior cells as well.
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// We can make this configurable at some point, but the default *must* be the below value. Anything else will break shoddily-written content (*cough* MW *cough*) in bizarre ways.
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return (pos1 - pos2).length2() <= 7168*7168;
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}
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private:
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bool isNearInactiveCell(const ESM::Position& actorPos);
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};
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}
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#endif
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