File indexing completed on 2024-04-21 04:02:23

 /*
     SPDX-FileCopyrightText: 2009 Ian Wadham <iandw.au@gmail.com>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #ifndef KGRRULEBOOK_H
 #define KGRRULEBOOK_H
 
 #include "kgrglobals.h"
 
 #include <QObject>
 
 #include "kgoldrunner_debug.h"
 
 class KGrLevelGrid;
 
 class KGrRuleBook : public QObject
 {
     Q_OBJECT
 public:
     explicit KGrRuleBook (QObject * parent);
     ~KGrRuleBook() override;
 
     bool variableTiming() const      { return mVariableTiming;      }
     bool alwaysCollectNugget() const { return mAlwaysCollectNugget; }
     bool runThruHole() const         { return mRunThruHole;         }
     bool reappearAtTop() const       { return mReappearAtTop;       }
     int  reappearRow() const         { return mReappearRow;         }
     int  pointsPerCell() const       { return mPointsPerCell;       }
     bool turnAnywhere() const        { return mTurnAnywhere;        }
     bool enemiesShowGold() const     { return mEnemiesShowGold;     }
 
     void        setTiming     (const int enemyCount = 0);
 
     inline void getHeroTimes  (int & runTime,       int & fallTime,
                                int & enemyFallTime, int & trapTime) {
                 runTime       = times.hwalk; fallTime = times.hfall;
                 enemyFallTime = times.efall; trapTime = times.ecaptive; }
 
     inline char getEnemyTimes (int & runTime, int & fallTime, int & trapTime) {
                 runTime       = times.ewalk; fallTime = times.efall;
                 trapTime      = times.ecaptive;
                 return mRules; }
 
     inline void getDigTimes   (int & digTime, int & digCounter) {
                 digTime = 200; digCounter = times.hole; }
 
     virtual Direction findBestWay (const int eI, const int eJ,
                                    const int hI, const int hJ,
                                    KGrLevelGrid * pGrid,
                                    bool leftRightSearch = true) = 0;
 
 protected:
     typedef struct {
         int hwalk;
         int hfall;
         int ewalk;
         int efall;
         int ecaptive;
         int hole;
     } Timing;
 
     char mRules;        ///< The type of rules and enemy search method.
 
     bool mVariableTiming;   ///< More enemies imply less speed.
     bool mAlwaysCollectNugget;  ///< Enemies always collect nuggets.
     bool mRunThruHole;      ///< Enemy can run L/R through dug hole.
     bool mReappearAtTop;    ///< Enemies reborn at top of screen.
     int  mReappearRow;      ///< Row where enemies reappear.
     int  mPointsPerCell;    ///< Number of points in each grid-cell.
     bool mTurnAnywhere;     ///< Can change direction anywhere in grid-cell.
     bool mEnemiesShowGold;  ///< Enemies show when they are carrying gold.
 
     Timing times;
     KGrLevelGrid * grid;
 };
 
 
 class KGrTraditionalRules : public KGrRuleBook
 {
     Q_OBJECT
 public:
     explicit KGrTraditionalRules (QObject * parent);
     ~KGrTraditionalRules() override;
 
     Direction findBestWay  (const int eI, const int eJ,
                             const int hI, const int hJ,
                             KGrLevelGrid * pGrid,
                             bool leftRightSearch = true) override;
 
 private:
     Direction searchUp     (int eI, int eJ, int hJ);
     Direction searchDown   (int eI, int eJ, int hJ);
     Direction getHero      (int eI, int eJ, int hI);
 
     int       distanceUp   (int x,  int y,  int deltah);
     int       distanceDown (int x,  int y,  int deltah);
     bool      searchOK     (int direction,  int x, int y);
     int       canWalkLR    (int direction,  int x, int y);
     bool      willNotFall  (int x,  int y);
 };
 
 
 class KGrKGoldrunnerRules : public KGrRuleBook
 {
     Q_OBJECT
 public:
     explicit KGrKGoldrunnerRules (QObject * parent);
     ~KGrKGoldrunnerRules() override;
 
     Direction findBestWay  (const int eI, const int eJ,
                             const int hI, const int hJ,
                             KGrLevelGrid * pGrid,
                             bool leftRightSearch = true) override;
 
 private:
     Direction findWayUp    (const int eI, const int eJ);
     Direction findWayDown  (const int eI, const int eJ);
     Direction findWayLeft  (const int eI, const int eJ);
     Direction findWayRight (const int eI, const int eJ);
 };
 
 
 class KGrScavengerRules : public KGrRuleBook
 {
     Q_OBJECT
 public:
     explicit KGrScavengerRules (QObject * parent);
     ~KGrScavengerRules() override;
 
     Direction findBestWay (const int eI, const int eJ,
                            const int hI, const int hJ,
                            KGrLevelGrid * pGrid,
                            bool leftRightSearch = true) override;
 };
 
 #endif // KGRRULEBOOK_H