反纹镜咒：纹光一闪，它的火原路奉还

 fx-mirrorward

-- @file MirrorWard.lua
-- 反纹 —— 纹光一闪，它的刀原路奉还

local MirrorWard = {}

local CONST = {
    WARD_LIFE     = 4.0,
    WARD_CD       = 5.0,
    REFL_MUL      = 2.0,
    BASE_HIT      = 14,

    COLOR_WARD    = "#d0a830",
    COLOR_DEEP    = "#584410",
    COLOR_GHOST   = "#f0e0a8",

    ZORDER_WARD   = 133,
    ZORDER_FX     = 135,
    AUTOINC_BASE  = 1078000,
}

local _wardT     = 0
local _cdLeft    = 0
local _wardFx    = nil
local _scheduler = nil
local _autoInc   = 0

local function GenID(prefix)
    _autoInc = _autoInc + 1
    return string.format("%s_%d", prefix or "MRW",
        CONST.AUTOINC_BASE + _autoInc)
end

local function GetActorPos(id)
    if not id then return nil end
    local x = SL:GetValue("ACTOR_POSITION_X", id)
    local y = SL:GetValue("ACTOR_POSITION_Y", id)
    if not x or not y then return nil end
    return { x = x, y = y }
end

local function SafeRemove(node)
    if node and not GUI:Widget_IsNull(node) then
        GUI:removeFromParent(node)
    end
end

local function ShowTip(msg)
    if msg and msg ~= "" then SL:ShowSystemTips(msg) end
end

function MirrorWard.Cast()
    if _cdLeft > 0 or _wardT > 0 then return end
    local myID = SL:GetValue("USER_ID")
    _cdLeft = CONST.WARD_CD
    _wardT = CONST.WARD_LIFE
    SafeRemove(_wardFx)
    _wardFx = GUI:Layout_Create(GUI:Attach_SceneF(),
        GenID("Ward"), 0, 0, 0, 0, false)
    GUI:setLocalZOrder(_wardFx, CONST.ZORDER_WARD)
    SL:PlayWardUpFx(myID)
    SL:TipAboveMe("反纹！")
    ShowTip("反纹立了——四秒内它那一刀原路奉还")
end

-- 弹回结算：窗口期内它打来的瞬发一击原路弹回
SL:RegisterLUAEvent(LUA_EVENT_BEFORE_HURT, "MRW_Refl", function(srcID, dmg)
    if _wardT <= 0 then return dmg end
    if srcID == SL:GetValue("USER_ID") then return dmg end
    local back = math.floor(dmg * CONST.REFL_MUL)
    SL:ActorHurt(srcID, back)
    SL:TipAbove(srcID, "反-" .. back)
    SL:PlayReflectFx(srcID)
    _wardT = 0
    SafeRemove(_wardFx)
    ShowTip("弹回去了——它挨了自己那一刀")
    return 0
end)

-- 定时器：窗口倒计时与纹镜跟脚
if not _scheduler then
    _scheduler = SL:Schedule(function(dt)
        _cdLeft = math.max(0, _cdLeft - dt)
        if _wardT > 0 then
            _wardT = _wardT - dt
            local myID = SL:GetValue("USER_ID")
            local mp = GetActorPos(myID)
            if _wardFx and mp then
                GUI:setPosition(_wardFx, mp.x, mp.y - 58)
            end
            if _wardT <= 0 then
                SafeRemove(_wardFx)
                ShowTip("纹光散了——慢一步就没得弹了")
            end
        end
    end, 0.02)
end

SL:ScheduleOnce(function()
    SL:BindDebugButton("立纹", function()
        MirrorWard.Cast()
    end)
    ShowTip("技能已加载: 反纹 (调试按钮触发)")
end, 1.0)

function MirrorWard.Unload()
    if _scheduler then SL:Unschedule(_scheduler) end
    SL:UnregisterLUAEvent(LUA_EVENT_BEFORE_HURT, "MRW_Refl")
    SafeRemove(_wardFx)
    _wardT = 0
end

return MirrorWard