WinCond.h

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/* -*- Mode: c++ -*- */

#ifndef _WINCOND_
#define _WINCOND_

#include <list>
#include <map>
#include <string>
#include "VehicleSprite.h"

struct _xmlNode;

class CondData {
public:
  struct Team {
    int teamNo;
    std::list<VehicleSprite*> vehicles;
  };

  static void Clear();
  static void Init(int nteams);
  static void AddVehicleForTeam(VehicleSprite* v, int team);
  static Team& GetTeam(int teamno) { return teams[teamno-1]; }

private:
  static std::vector<Team> teams;
};

class Cond
{
public:
  class Bool {
  public:
    virtual ~Bool() {}
    
    virtual void evaluate() = 0;
    inline bool getValue() const { return value; }

  protected:
    bool value;
  };

  typedef std::string BoolOper;
  
  class BoolExpr {
  public:
    BoolExpr(Bool* boolVar) : var(boolVar), oper(0) {}
    BoolExpr(BoolOper *boolOper) : var(0), oper(boolOper) {}
    ~BoolExpr() { delete oper; oper = 0; delete var; var = 0; }

    const BoolOper* getOper() { return oper; }
    const Bool* getVariable() { return var; }

  private:
    Bool *var;
    BoolOper *oper;
  };

public:
  virtual ~Cond();

  bool loadCond(const std::string &condPath, const std::string &exprPath);
  bool evaluate();

protected:
  bool loadExpression(const std::string &path, 
                std::map<std::string, Bool*> &lookup);
  bool parseCondition(_xmlNode* node, std::map<std::string, Bool*> &lookup);
  
protected:
  std::list<Bool*> boolVariables;
  std::list<BoolExpr*> boolExpr;
};

#endif

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