Calculation...

[Tricker]

What calculation I have to do to know how much hp removes a physical attack ?
I know that involves the hero's strenght, the weapon's strenght and the enemy's physical defence, but I don't know in which way to calculate this...

 

[kaze950]

I think you can find your answer in this part of Game_Battler

#--------------------------------------------------------------------------
  # * Applying Normal Attack Effects
  #     attacker : battler
  #--------------------------------------------------------------------------
  def attack_effect(attacker)
    # Clear critical flag
    self.critical = false
    # First hit detection
    hit_result = (rand(100) < attacker.hit)
    # If hit occurs
    if hit_result == true
      # Calculate basic damage
      atk = [attacker.atk - self.pdef / 2, 0].max
      self.damage = atk * (20 + attacker.str) / 20
      # Element correction
      self.damage *= elements_correct(attacker.element_set)
      self.damage /= 100
      # If damage value is strictly positive
      if self.damage > 0
        # Critical correction
        if rand(100) < 4 * attacker.dex / self.agi
          self.damage *= 2
          self.critical = true
        end
        # Guard correction
        if self.guarding?
          self.damage /= 2
        end
      end
      # Dispersion
      if self.damage.abs > 0
        amp = [self.damage.abs * 15 / 100, 1].max
        self.damage += rand(amp+1) + rand(amp+1) - amp
      end
      # Second hit detection
      eva = 8 * self.agi / attacker.dex + self.eva
      hit = self.damage < 0 ? 100 : 100 - eva
      hit = self.cant_evade? ? 100 : hit
      hit_result = (rand(100) < hit)
    end
    # If hit occurs
    if hit_result == true
      # State Removed by Shock
      remove_states_shock
      # Substract damage from HP
      self.hp -= self.damage
      # State change
      @state_changed = false
      states_plus(attacker.plus_state_set)
      states_minus(attacker.minus_state_set)
    # When missing
    else
      # Set damage to "Miss"
      self.damage = "Miss"
      # Clear critical flag
      self.critical = false
    end
    # End Method
    return true
  end

p.s.

At first I thought your name was Trickster and was wondering why you were posting a question like this >_>

 

[Tricker]

Thanx kaze !!!
I've found it, but what is that first and second hit detection???

 

[Brewmeister]

2nd hit determines if the successful hit was evaded.

 

[khmp]

You also might want to take a look at the Help File 'RPG Maker XP->Battle Formulas' section. If you prefer reading it written out in non code form.

Good luck with it Tricker! :thumb:

 

[Tricker]

And if I want to create a real time bs, how many frames I have to make the hero attack if I know his speed (or agility).