[GTBS] Atb Changes

=begin
 Changes to [GTBS] Scene_Battle / [GTBS] Game_Battler
 ATB Update 1.0
 Change list:
 - Changed how skill cast time works, now it waits a specific amount of turns that pass
   example: a skill cast time set to 1, would activate after the next battlers turn
            while a skill with cast time 5, would w8 until the next 5 battlers pass.

   setup skill_wait with, see more in [GTBS] Skill Setup
   skill_wait[Cast_time, ATB_recover, End_Turn]
 - Haven't tested if enemies cast time works.

 - Added haste/slow into atb math
   haste speeds up atb and slow slows it down.
   Look at [GTBS] General Settings for HASTE_ID and SLOW_ID

  By Quasi (http://quasixi.wordpress.com/)
  - 2/12/14
=end
module Quasi
  # Change values to the speed to increase/decrease while they have
  # Haste or Slow
  ATB_HASTE   = 1.5
  ATB_SLOW    = 0.5
end


class Scene_Battle_TBS
  @atb_updated = false

  #----------------------------------------------------------------------------
  # Process Battlers - Main battler update thread
  #----------------------------------------------------------------------------
  def process_atb
    while @active_battler == nil
      process_forced_action
      for battler in tactics_all
        battler.check_casting
      end
      return if @using_skill
      @use_spell = next_wait_skill(tactics_all)
      return unless @use_spell.empty?
      next_battler = next_atb_battler(tactics_all)
      if next_battler
        next_battler.reset_atb
        set_active_battler(next_battler)
        @atb_updated = false
        #return
      else
        update_atb(tactics_all)
      end
    end
  end

  #--------------------------------------------------------------------------
  #* update_atb
  #-------------------------------------------------------------------------
  def update_atb(list_battlers)
    @scasting = [] if @scasting == nil
    for battler in list_battlers
      next if battler.paralyzed? or battler.sleeping? or battler.knocked_out? or battler.hidden?
      battler.atb_update
      if battler.casting? and !battler.muted?
        if battler.enemy?
          id = 10 + battler.index #enemies start at array index 10+
        else
          id = battler.id
        end
        if @scasting[id] == nil or @scasting[battler.id] < 0
          @scasting[id] = GTBS::skill_wait(battler.skill_cast[0].id)[0]
        end
        if @scasting[id] <= 0
          battler.up_cast(false, 0)
        end
        if @atb_updated == false
          battler.up_cast(false, @scasting[id])
          @scasting[id] -= 1
          @atb_updated = true
        end
      end
    end
  end
end

#=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#
# GTBS Game Battler edits - Part 1 (New/revised variables/methods)
#=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#
class Game_Battler < Game_BattlerBase
  #--------------------------------------------------------------------------
  # * Updates current casting time, or resets it
  #--------------------------------------------------------------------------
  def up_cast(reset = false, cast = 0)
    if cast > 0
      @skillcasting = cast
    else
      @skillcasting = 0
    end
  end

  #--------------------------------------------------------------------------
  # Update ATB using AGI for the actor
  #--------------------------------------------------------------------------
  def promptness
    agi = self.agi
    cast = casting? ? GTBS.skill_wait(@skill_cast[0].id)[1] / 100.0 : 1.0
    slow = is_slow? ? Quasi::ATB_SLOW : 1.0
    haste = is_haste? ? Quasi::ATB_HASTE : 1.0
    atb = agi * cast * slow * haste
    return atb
  end
end