迟滞咒：咒它出手慢一倍，节奏全乱招招落空

 fx-sluggish

-- @file Sluggish.lua
-- 迟滞咒 —— 咒它出手慢一倍，节奏全乱

local Sluggish = {}

local CONST = {
    SLOW_LIFE     = 4.0,
    SLOW_CD       = 6.0,
    RATE_ATK      = 2.0,
    RATE_MOVE     = 0.5,
    RATE_ANIM     = 0.55,

    COLOR_SLOW    = "#9098c8",
    COLOR_DEEP    = "#2e3450",
    COLOR_GHOST   = "#d0d4ec",

    ZORDER_CURSE  = 131,
    ZORDER_FX     = 135,
    AUTOINC_BASE  = 989000,
}

local _slowT     = 0
local _slowID    = 0
local _cdLeft    = 0
local _curseFx   = nil
local _scheduler = nil
local _autoInc   = 0

local function GenID(prefix)
    _autoInc = _autoInc + 1
    return string.format("%s_%d", prefix or "SLG",
        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 ApplySlowRate(id)
    SL:SetActorRate(id, "atk", CONST.RATE_ATK)
    SL:SetActorRate(id, "move", CONST.RATE_MOVE)
    SL:SetActorRate(id, "anim", CONST.RATE_ANIM)
end

local function ClearSlowRate(id)
    SL:SetActorRate(id, "atk", 1.0)
    SL:SetActorRate(id, "move", 1.0)
    SL:SetActorRate(id, "anim", 1.0)
end

function Sluggish.Cast()
    if _cdLeft > 0 or _slowT > 0 then return end
    local tid = SL:GetValue("MARK_TARGET_ID")
    if not tid then return end
    _cdLeft = CONST.SLOW_CD
    _slowT = CONST.SLOW_LIFE
    _slowID = tid
    ApplySlowRate(tid)
    _curseFx = GUI:Layout_Create(GUI:Attach_SceneF(),
        GenID("Curse"), 0, 0, 0, 0, false)
    GUI:setLocalZOrder(_curseFx, CONST.ZORDER_CURSE)
    SL:PlayCurseFx(tid)
    SL:TipAbove(tid, "迟滞！")
    ShowTip("咒上了——四秒里它出手慢一倍")
end

-- 定时器：咒期倒计时与速率回收
if not _scheduler then
    _scheduler = SL:Schedule(function(dt)
        _cdLeft = math.max(0, _cdLeft - dt)
        if _slowT > 0 then
            _slowT = _slowT - dt
            local tp = GetActorPos(_slowID)
            if _curseFx and tp then
                GUI:setPosition(_curseFx, tp.x, tp.y - 78)
            end
            if _slowT <= 0 or not tp
                or SL:GetValue("ACTOR_DEAD", _slowID) then
                _slowT = 0
                ClearSlowRate(_slowID)
                SafeRemove(_curseFx)
                ShowTip("咒散了——它的节奏回来了，当心反咬")
            end
        end
    end, 0.02)
end

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

-- 卸载兜底：速率必须还原，绝不能带出战斗
function Sluggish.Unload()
    if _scheduler then SL:Unschedule(_scheduler) end
    if _slowT > 0 then ClearSlowRate(_slowID) end
    SafeRemove(_curseFx)
end

return Sluggish