苦肉计纹：挨它一刀，下一刀翻倍

 fx-bitterflesh

-- @file BitterFlesh.lua
-- 苦肉计纹 —— 挨它一刀，下一刀翻倍

local BitterFlesh = {}

local CONST = {
    CREST_LIFE    = 14.0,
    CREST_CD      = 4.0,
    DOUBLE_HIT    = 24,
    BASE_HIT      = 12,
    BREATHE_CD    = 5.0,

    COLOR_FLESH   = "#c06848",
    COLOR_DEEP    = "#482018",
    COLOR_GHOST   = "#f0c0a8",

    ZORDER_FLESH  = 133,
    ZORDER_FX     = 135,
    AUTOINC_BASE  = 1130000,
}

local _crestT    = 0
local _cdLeft    = 0
local _empowed   = false
local _breatheCd = 0
local _crestFx   = nil
local _scheduler = nil
local _autoInc   = 0

local function GenID(prefix)
    _autoInc = _autoInc + 1
    return string.format("%s_%d", prefix or "BTF",
        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 BitterFlesh.Empowed()
    return _empowed
end

-- 借力判定：挨的拳过秤，借成的挂许可
SL:RegisterLUAEvent(LUA_EVENT_HURT_TAKEN, "BTF_Borrow", function(dmg)
    if _crestT <= 0 or _empowed then return dmg end
    if _breatheCd > 0 then return dmg end
    _empowed = true
    _breatheCd = CONST.BREATHE_CD
    SL:TipAboveMe("苦肉!")
    return dmg
end)

-- 翻倍结算：许可挂在下一刀，落刀即清
SL:RegisterLUAEvent(LUA_EVENT_MELEE_DAMAGE, "BTF_Pay", function()
    if not BitterFlesh.Empowed() then return 0 end
    _empowed = false
    return CONST.DOUBLE_HIT - CONST.BASE_HIT
end)

function BitterFlesh.Cast()
    if _cdLeft > 0 or _crestT > 0 then return end
    local myID = SL:GetValue("USER_ID")
    _cdLeft = CONST.CREST_CD
    _crestT = CONST.CREST_LIFE
    _empowed = false
    _breatheCd = 0
    SafeRemove(_crestFx)
    _crestFx = GUI:Layout_Create(GUI:Attach_SceneF(),
        GenID("Flesh"), 0, 0, 0, 0, false)
    GUI:setLocalZOrder(_crestFx, CONST.ZORDER_FLESH)
    SL:PlayBitterUpFx(myID)
    ShowTip("苦肉开了——挨它一刀，下一刀翻倍")
end

-- 定时器：纹成倒计时与喘息冷却
if not _scheduler then
    _scheduler = SL:Schedule(function(dt)
        _cdLeft = math.max(0, _cdLeft - dt)
        _breatheCd = math.max(0, _breatheCd - dt)
        if _crestT > 0 then
            _crestT = _crestT - dt
            if _crestT <= 0 then
                SafeRemove(_crestFx)
                ShowTip("纹收了——苦肉的白挨了")
            end
        end
    end, 0.02)
end

SL:ScheduleOnce(function()
    SL:BindDebugButton("应苦", function()
        BitterFlesh.Cast()
    end)
    ShowTip("技能已加载: 苦肉纹 (调试按钮触发)")
end, 1.0)

function BitterFlesh.Unload()
    if _scheduler then SL:Unschedule(_scheduler) end
    SL:UnregisterLUAEvent(LUA_EVENT_HURT_TAKEN, "BTF_Borrow")
    SL:UnregisterLUAEvent(LUA_EVENT_MELEE_DAMAGE, "BTF_Pay")
    SafeRemove(_crestFx)
    _crestT = 0
    _empowed = false
end

return BitterFlesh