封脉：掐断它的杀劲，四秒里狂也狂不起来

 fx-strand

-- @file Strand.lua
-- 封脉 —— 掐断它的杀劲，四秒里狂也狂不起来

local Strand = {}

local CONST = {
    SEAL_LIFE     = 4.0,
    SEAL_CD       = 5.0,

    COLOR_SEAL    = "#8878c8",
    COLOR_DEEP    = "#342a5e",
    COLOR_GHOST   = "#d8d0f8",

    ZORDER_CHAIN  = 132,
    ZORDER_FX     = 135,
    AUTOINC_BASE  = 995000,
}

local _sealT     = 0
local _sealID    = 0
local _cdLeft    = 0
local _chainFx   = nil
local _scheduler = nil
local _autoInc   = 0

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

local function CreateChainFx(id)
    local tp = GetActorPos(id)
    if not tp then return nil end
    local node = GUI:Layout_Create(GUI:Attach_SceneF(),
        GenID("Chain"), tp.x, tp.y - 78, 0, 0, false)
    GUI:setLocalZOrder(node, CONST.ZORDER_CHAIN)
    for i = 0, 2 do
        GUI:DrawLine_Create(node, "ln_" .. i, 0, 0, 3,
            -24, i * 14, 24, i * 14 - 6,
            CONST.COLOR_SEAL, 230)
    end
    return node
end

function Strand.Cast()
    if _cdLeft > 0 or _sealT > 0 then return end
    local tid = SL:GetValue("MARK_TARGET_ID")
    if not tid then return end
    _cdLeft = CONST.SEAL_CD
    _sealT = CONST.SEAL_LIFE
    _sealID = tid
    SL:FreezeRageTimer(tid)
    SafeRemove(_chainFx)
    _chainFx = CreateChainFx(tid)
    SL:PlaySealFx(tid)
    SL:TipAbove(tid, "封！")
    ShowTip("脉封了——四秒里它的杀劲起不来")
end

-- 定时器：封链倒计时与跟脚
if not _scheduler then
    _scheduler = SL:Schedule(function(dt)
        _cdLeft = math.max(0, _cdLeft - dt)
        if _sealT > 0 then
            _sealT = _sealT - dt
            local tp = GetActorPos(_sealID)
            if _chainFx and tp then
                GUI:setPosition(_chainFx, tp.x, tp.y - 78)
            end
            if _sealT <= 0 or not tp
                or SL:GetValue("ACTOR_DEAD", _sealID) then
                _sealT = 0
                SL:ThawRageTimer(_sealID)
                SafeRemove(_chainFx)
                ShowTip("脉解了——它憋了四秒，当心反扑")
            end
        end
    end, 0.02)
end

-- 解冻反扑：憋出来的第一刀加劲
SL:RegisterLUAEvent(LUA_EVENT_RAGE_THAW, "STD_Back", function(tid)
    if tid == _sealID then
        SL:PlayBacklashFx(tid)
        ShowTip("憋出来的杀劲最凶——拉开半步再接")
    end
end)

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

function Strand.Unload()
    if _scheduler then SL:Unschedule(_scheduler) end
    SL:UnregisterLUAEvent(LUA_EVENT_RAGE_THAW, "STD_Back")
    SafeRemove(_chainFx)
end

return Strand