Renamed/rearranged some script files

Data/Scripts/011_Battle/005_AI/008_AI_Utilities.rb

@@ -0,0 +1,98 @@
+class Battle::AI
+  def pbAIRandom(x); return rand(x); end
+
+  def pbStdDev(choices)
+    sum = 0
+    n   = 0
+    choices.each do |c|
+      sum += c[1]
+      n   += 1
+    end
+    return 0 if n < 2
+    mean = sum.to_f / n
+    varianceTimesN = 0
+    choices.each do |c|
+      next if c[1] <= 0
+      deviation = c[1].to_f - mean
+      varianceTimesN += deviation * deviation
+    end
+    # Using population standard deviation
+    # [(n-1) makes it a sample std dev, would be 0 with only 1 sample]
+    return Math.sqrt(varianceTimesN / n)
+  end
+
+  #-----------------------------------------------------------------------------
+
+  # Move's type effectiveness. For switching. Determines the effectiveness of a
+  # potential switch-in against an opposing battler.
+  # TODO: Unused.
+  def pbCalcTypeModPokemon(pkmn, target_battler)
+    ret = Effectiveness::NORMAL_EFFECTIVE_MULTIPLIER
+    pkmn.types.each do |thisType|
+      ret *= Effectiveness.calculate(thisType, *target_battler.types)
+    end
+    return ret
+  end
+
+  # Assumes that pkmn's ability is not negated by a global effect (e.g.
+  # Neutralizing Gas).
+  # pkmn is either a Battle::AI::AIBattler or a Pokemon. move is a Battle::Move.
+  def pokemon_can_absorb_move?(pkmn, move, move_type)
+    return false if pkmn.is_a?(Battle::AI::AIBattler) && !pkmn.ability_active?
+    # Check pkmn's ability
+    # Anything with a Battle::AbilityEffects::MoveImmunity handler
+    # TODO: Are there any other absorbing effects? Held item?
+    case pkmn.ability_id
+    when :BULLETPROOF
+      return move.bombMove?
+    when :FLASHFIRE
+      return move_type == :FIRE
+    when :LIGHTNINGROD, :MOTORDRIVE, :VOLTABSORB
+      return move_type == :ELECTRIC
+    when :SAPSIPPER
+      return move_type == :GRASS
+    when :SOUNDPROOF
+      return move.soundMove?
+    when :STORMDRAIN, :WATERABSORB, :DRYSKIN
+      return move_type == :WATER
+    when :TELEPATHY
+      # NOTE: The move is being used by a foe of pkmn.
+      return false
+    when :WONDERGUARD
+      types = pkmn.types
+      types = pkmn.pbTypes(true) if pkmn.is_a?(Battle::AI::AIBattler)
+      return Effectiveness.super_effective_type?(move_type, *types)
+    end
+    return false
+  end
+
+  #-----------------------------------------------------------------------------
+
+  def each_battler
+    @battlers.each_with_index do |battler, i|
+      next if !battler || battler.fainted?
+      yield battler, i
+    end
+  end
+
+  def each_foe_battler(side)
+    @battlers.each_with_index do |battler, i|
+      next if !battler || battler.fainted?
+      yield battler, i if i.even? != side.even?
+    end
+  end
+
+  def each_same_side_battler(side)
+    @battlers.each_with_index do |battler, i|
+      next if !battler || battler.fainted?
+      yield battler, i if i.even? == side.even?
+    end
+  end
+
+  def each_ally(index)
+    @battlers.each_with_index do |battler, i|
+      next if !battler || battler.fainted?
+      yield battler, i if i != index && i.even? == index.even?
+    end
+  end
+end