Examples of net.sf.l2j.gameserver.skills.Calculator

net.sf.l2j.gameserver.skills.Calculator
A calculator is created to manage and dynamically calculate the effect of a character property (ex : MAX_HP, REGENERATE_HP_RATE...). In fact, each calculator is a table of Func object in which each Func represents a mathematic function :

FuncAtkAccuracy -> Math.sqrt(_player.getDEX())*6+_player.getLevel()

When the calc method of a calculator is launched, each mathematic function is called according to its priority _order. Indeed, Func with lowest priority order is executed first and Funcs with the same order are executed in unspecified order. The result of the calculation is stored in the value property of an Env class instance.

Method addFunc and removeFunc permit to add and remove a Func object from a Calculator.

    if (_activeChar == null)
      return init;


    int id = stat.ordinal();


    Calculator c = _activeChar.getCalculators()[id];


    // If no Func object found, no modifier is applied
    if (c == null || c.size() == 0)
      return init;


    // Create and init an Env object to pass parameters to the Calculator
    Env env = new Env();
    env.player = _activeChar;
    env.target = target;
    env.skill = skill;
    env.value = init;


    // Launch the calculation
    c.calc(env);
    // avoid some troubles with negative stats (some stats should never be
    // negative)
    if (env.value <= 0
        && ((stat == Stats.MAX_HP) || (stat == Stats.MAX_MP) || (stat == Stats.MAX_CP) || (stat == Stats.MAGIC_DEFENCE)
            || (stat == Stats.POWER_DEFENCE) || (stat == Stats.POWER_ATTACK) || (stat == Stats.MAGIC_ATTACK) || (stat == Stats.POWER_ATTACK_SPEED)

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      for (int i = 0; i < Stats.NUM_STATS; i++)
      {
        if (NPC_STD_CALCULATOR[i] != null)
        {
          _calculators[i] = new Calculator(NPC_STD_CALCULATOR[i]);
        }
      }
    }
    
    // Select the Calculator of the affected state in the Calculator set
    int stat = f.stat.ordinal();
    
    if (_calculators[stat] == null)
    {
      _calculators[stat] = new Calculator();
    }
    
    // Add the Func to the calculator corresponding to the state
    _calculators[stat].addFunc(f);

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Related Classes of net.sf.l2j.gameserver.skills.Calculator

net.sf.l2j.gameserver.model.actor.stat.CharStat

net.sf.l2j.gameserver.model.L2Character

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