#encoding:utf-8
#==============================================================================
# ■ Game_Action
#------------------------------------------------------------------------------
# 处理战斗中的行动的类。本类在 Game_Battler 类的内部使用。
#==============================================================================
class Game_Action
#--------------------------------------------------------------------------
# ● 定义实例变量
#--------------------------------------------------------------------------
attr_reader :subject # 行动主体
attr_reader :forcing # 强制行动的标志
attr_reader :item # 技能 / 物品
attr_accessor :target_index # 目标索引
attr_reader :value # 评价值（自动战斗用）
#--------------------------------------------------------------------------
# ● 初始化对象
#--------------------------------------------------------------------------
def initialize(subject, forcing = false)
@subject = subject
@forcing = forcing
clear
end
#--------------------------------------------------------------------------
# ● 清除
#--------------------------------------------------------------------------
def clear
@item = Game_BaseItem.new
@target_index = -1
@value = 0
end
#--------------------------------------------------------------------------
# ● 获取队友单位
#--------------------------------------------------------------------------
def friends_unit
subject.friends_unit
end
#--------------------------------------------------------------------------
# ● 获取敌人单位
#--------------------------------------------------------------------------
def opponents_unit
subject.opponents_unit
end
#--------------------------------------------------------------------------
# ● 设置敌人的战斗行动
# action : RPG::Enemy::Action
#--------------------------------------------------------------------------
def set_enemy_action(action)
if action
set_skill(action.skill_id)
else
clear
end
end
#--------------------------------------------------------------------------
# ● 设置普通攻击
#--------------------------------------------------------------------------
def set_attack
set_skill(subject.attack_skill_id)
self
end
#--------------------------------------------------------------------------
# ● 设置防御
#--------------------------------------------------------------------------
def set_guard
set_skill(subject.guard_skill_id)
self
end
#--------------------------------------------------------------------------
# ● 设置技能
#--------------------------------------------------------------------------
def set_skill(skill_id)
@item.object = $data_skills[skill_id]
self
end
#--------------------------------------------------------------------------
# ● 设置物品
#--------------------------------------------------------------------------
def set_item(item_id)
@item.object = $data_items[item_id]
self
end
#--------------------------------------------------------------------------
# ● 获取物品实例
#--------------------------------------------------------------------------
def item
@item.object
end
#--------------------------------------------------------------------------
# ● 判定是否为普通攻击
#--------------------------------------------------------------------------
def attack?
item == $data_skills[subject.attack_skill_id]
end
#--------------------------------------------------------------------------
# ● 随机目标
#--------------------------------------------------------------------------
def decide_random_target
if item.for_dead_friend?
target = friends_unit.random_dead_target
elsif item.for_friend?
target = friends_unit.random_target
else
target = opponents_unit.random_target
end
if target
@target_index = target.index
else
clear
end
end
#--------------------------------------------------------------------------
# ● 设置混乱行动
#--------------------------------------------------------------------------
def set_confusion
set_attack
end
#--------------------------------------------------------------------------
# ● 行动准备
#--------------------------------------------------------------------------
def prepare
set_confusion if subject.confusion? && !forcing
end
#--------------------------------------------------------------------------
# ● 判定行动是否有效
# 假设在事件指令中没有选择强制行动时，
# 受到状态的限制，也没有可用的物品，或者没有预定的行动，则返回 false。
#--------------------------------------------------------------------------
def valid?
(forcing && item) || subject.usable?(item)
end
#--------------------------------------------------------------------------
# ● 计算行动速度
#--------------------------------------------------------------------------
def speed
speed = subject.agi + rand(5 + subject.agi / 4)
speed += item.speed if item
speed += subject.atk_speed if attack?
speed
end
#--------------------------------------------------------------------------
# ● 生成目标数组
#--------------------------------------------------------------------------
def make_targets
if !forcing && subject.confusion?
[confusion_target]
elsif item.for_opponent?
targets_for_opponents
elsif item.for_friend?
targets_for_friends
else
[]
end
end
#--------------------------------------------------------------------------
# ● 混乱时的目标
#--------------------------------------------------------------------------
def confusion_target
case subject.confusion_level
when 1
opponents_unit.random_target
when 2
if rand(2) == 0
opponents_unit.random_target
else
friends_unit.random_target
end
else
friends_unit.random_target
end
end
#--------------------------------------------------------------------------
# ● 目标为敌人
#--------------------------------------------------------------------------
def targets_for_opponents
if item.for_random?
Array.new(item.number_of_targets) { opponents_unit.random_target }
elsif item.for_one?
num = 1 + (attack? ? subject.atk_times_add.to_i : 0)
if @target_index < 0
[opponents_unit.random_target] * num
else
[opponents_unit.smooth_target(@target_index)] * num
end
else
opponents_unit.alive_members
end
end
#--------------------------------------------------------------------------
# ● 目标为队友
#--------------------------------------------------------------------------
def targets_for_friends
if item.for_user?
[subject]
elsif item.for_dead_friend?
if item.for_one?
[friends_unit.smooth_dead_target(@target_index)]
else
friends_unit.dead_members
end
elsif item.for_friend?
if item.for_one?
[friends_unit.smooth_target(@target_index)]
else
friends_unit.alive_members
end
end
end
#--------------------------------------------------------------------------
# ● 行动的价值评价（自动战斗用）
# 自动设置 @value 和 @target_index 。
#--------------------------------------------------------------------------
def evaluate
@value = 0
evaluate_item if valid?
@value += rand if @value > 0
self
end
#--------------------------------------------------------------------------
# ● 技能／物品的评价
#--------------------------------------------------------------------------
def evaluate_item
item_target_candidates.each do |target|
value = evaluate_item_with_target(target)
if item.for_all?
@value += value
elsif value > @value
@value = value
@target_index = target.index
end
end
end
#--------------------------------------------------------------------------
# ● 获取技能／使用物品的候选目标
#--------------------------------------------------------------------------
def item_target_candidates
if item.for_opponent?
opponents_unit.alive_members
elsif item.for_user?
[subject]
elsif item.for_dead_friend?
friends_unit.dead_members
else
friends_unit.alive_members
end
end
#--------------------------------------------------------------------------
# ● 技能／物品的评价（对指定目标）
#--------------------------------------------------------------------------
def evaluate_item_with_target(target)
target.result.clear
target.make_damage_value(subject, item)
if item.for_opponent?
return target.result.hp_damage.to_f / [target.hp, 1].max
else
recovery = [-target.result.hp_damage, target.mhp - target.hp].min
return recovery.to_f / target.mhp
end
end
end