worm.hpp

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/* worm.cpp deals with a single worm */

#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <time.h>

// temporary cure begin
#define random(x)   (rand() % x)
#define isDigit(x)  ('0' <= x && x <= '9')
#define min(a, b)   ((a) < (b)? (a) : (b))
#define ESC     '\033'  // the ESCape char
#define CARROT      '.' // a carrot is shown as a dot
#define NORTH 00                // TBD
#define asog(ptr, row, col) (ptr + row*asogCols + col)
#define MAXsegs  100        // max # segments per worm
// temporary cure end

class Worm {

public:
  typedef enum {
    VEGETARIAN, CANNIBAL, SCISSORHEAD
  } WormKind;           // 0, 1, 2

  void createWorm(WormKind type, const char * sy);

private:

  typedef enum {
    EATEN, DEAD, ALIVE
  } LIFE;

  typedef struct {
    int x, y;           // coordinates of the segment
    char c;         // the letter it carries
  } SEGMENT;

private:                        // data members
  WormKind type;        // once set, type does not change
  int direction;        // its (head's) direction
  int stomach;          // food value
  LIFE status;          // EATEN, DEAD, or ALIVE; redundant
  int nsegs;            // # of segs in this worm
  SEGMENT body[MAXsegs];    // body parts

private:                        // methods
  int isHungry();
  void gotEaten();
  void checkStomach();
  void eatACarrot();
  int isAt(int row, int col);
  void setVictimWorm();
  void shiftBodyDown(Worm * vp, int vsn);
  Worm * sliceTheVictim(Worm * vp, int vsn);
  void eat();
  void live();
  void showOneWorm();
};

class WormInfo {
public:
    int color;
    int capacity;           // stomach size
    int foodValue;
};

#define COLOR_PAIR(x) (x)       // dummy TBD

WormInfo worm_info[] = {    // indexed by WORM_KIND
  {COLOR_PAIR(1), 3, 3},    // from <ncurses.h>
  {COLOR_PAIR(2), 4, 5},
  {COLOR_PAIR(3), 5, 4}
};

class ASOG {
};


extern  Worm * findSlot();
extern int asogCols, asogRows;
extern int xworms[];
extern int hxWorms;
extern Worm wormArray[];