#ifndef FORMULA_H
#define FORMULA_H

#define OP_BAD      -1
#include "playerdb.h"
#include "gamedb.h"

#define OP_NONE      0
#define OP_RTPAREN   1
#define OP_OR        2
#define OP_AND       3
#define OP_EQ        4
#define OP_NEQ       5
#define OP_GT        6
#define OP_GE        7
#define OP_LT        8
#define OP_LE        9
#define OP_PLUS     10
#define OP_MINUS    11
#define OP_MULT     12
#define OP_DIV      13
#define OP_NEGATE   14
#define OP_NOT      15

#define OPTYPE_BAD     0
#define OPTYPE_NONE    1
#define OPTYPE_RPAREN  2
#define OPTYPE_PAREN   3
#define OPTYPE_OR      4
#define OPTYPE_AND     5
#define OPTYPE_COMPEQ  6
#define OPTYPE_COMPGL  7
#define OPTYPE_ADD     8
#define OPTYPE_MULT    9
#define OPTYPE_UNARY  10

#define ERR_NONE 0
#define ERR_EOF 1
#define ERR_UNARY 2
#define ERR_BADCHAR 3
#define ERR_BADVAR 4
#define ERR_BADOP 5
#define ERR_NONESENSE 6
#define ERR_DIVBYZERO 7
#define ERR_PAREN 8

#define FUDGE_FACTOR 1e-3

extern int CheckFormula (game *, int, int *, int, int *, int);
extern int GameMatchesFormula (int, int, int, int, int, int, int, int, textlist **);
extern int GetRating (player *, int);
extern void ShowClauses (int, int, textlist *);

#endif