Rpg Maker Developers Group

COOLDOWN_SKILL_IDS = { 12 => 2, 20 => 4 }

$game_party.clear_used_skills!

$game_party.clear_skill_cooldowns!

# * Super Skill Nerf XP * #
#   Scripter : Kyonides
#   v1.2.1 - 2025-09-25

# Nerf! Nerf! Nerf your favorite super duper skills!
# Even up to the point where your heroes can only use them once per battle!
# Just add the Skill ID to the ONLY_ONCE_SKILL_IDS array and that's it!
# Or add it to the ONLY_TWICE_SKILL_IDS to cast the skill twice!

# Or Cool Them Down!
# Just add the Skill ID to the COOLDOWN_SKILL_IDS and how many turns that skill
# should not be used and that's it!
# Example: COOLDOWN_SKILL_IDS = { 12 => 2, 20 => 4 }

# * Optional Script Calls * #

# - Just in case you want to clear this skill use limit once per call:
# $game_party.clear_used_skills!

# - Just in case you want to clear the skill cooldowns:
# $game_party.clear_skill_cooldowns!

module RPG
  class Skill
    ONLY_ONCE_SKILL_IDS  = [57]
    ONLY_TWICE_SKILL_IDS = []
    COOLDOWN_SKILL_IDS = { 7 => 2 }
    def cast_once?
      ONLY_ONCE_SKILL_IDS.include?(@id)
    end

    def cast_twice?
      ONLY_TWICE_SKILL_IDS.include?(@id)
    end

    def has_cooldown?
      COOLDOWN_SKILL_IDS.has_key?(@id)
    end

    def cooldown
      COOLDOWN_SKILL_IDS[@id] || 0
    end
  end
end

class Game_Battler
  alias :kyon_ssn_gm_btlr_sk_fx :skill_effect
  def skill_effect(user, skill)
    user.refresh_skill_data(skill) if user.actor?
    kyon_ssn_gm_btlr_sk_fx(user, skill)
  end

  def actor?
    false
  end
end

class Game_Actor
  alias :kyon_ssn_gm_act_stp :setup
  alias :kyon_ssn_gm_act_sk_cn_use? :skill_can_use?
  def setup(actor_id)
    kyon_ssn_gm_act_stp(actor_id)
    @used_skills = {}
    @skill_cd = {}
    @used_skills.default = 0
    @skill_cd.default = 0
  end

  def skill_used?(skill_id)
    @used_skills[skill_id] > 0
  end

  def skill_cd?(skill_id)
    @skill_cd[skill_id] > 0
  end

  def skill_can_use?(skill_id)
    skill = $data_skills[skill_id]
    return unless skill
    return if skill.has_cooldown? and skill_cd?(skill_id)
    return if @used_skills[skill_id] != 0 and skill.cast_once?
    return if @used_skills[skill_id] == 2 and skill.cast_twice?
    kyon_ssn_gm_act_sk_cn_use?(skill_id)
  end

  def refresh_skill_data(skill)
    @used_skills[skill.id] += 1
    @skill_cd[skill.id] = skill.cooldown
  end

  def decrease_skill_cooldowns!
    @skill_cd.keys.each {|k| @skill_cd[k] -= 1 }
    @skill_cd.delete_if {|k, v| v < 1 }
  end

  def clear_used_skills!
    @used_skills.clear
  end

  def clear_skill_cooldowns!
    @skill_cd.clear
  end

  def actor?
    true
  end
  attr_reader :used_skills, :skill_cd
end

class Game_Party
  def decrease_skill_cooldowns!
    @actors.each {|actor| actor.decrease_skill_cooldowns! }
  end
   
  def clear_used_skills!
    @actors.each {|actor| actor.clear_used_skills! }
  end

  def clear_skill_cooldowns!
    @actors.each {|actor| actor.clear_skill_cooldowns! }
  end
end

class Scene_Battle
  alias :kyon_ssn_scn_btl_st_ph4 :start_phase4
  alias :kyon_ssn_scn_btl_btl_end :battle_end
  def start_phase4
    $game_party.decrease_skill_cooldowns!
    kyon_ssn_scn_btl_st_ph4
  end

  def battle_end(result)
    $game_party.clear_used_skills!
    $game_party.clear_skill_cooldowns!
    kyon_ssn_scn_btl_btl_end(result)
  end
end