轮岗守纹：两只怪轮着出手，总有一只在歇

 fx-shiftduty

-- @file ShiftDuty.lua
-- 轮岗纹 —— 两只怪轮着出手，总有一只在歇

local ShiftDuty = {}

local CONST = {
    CREST_LIFE    = 10.0,
    CREST_CD      = 4.0,
    TURN_LIFE     = 3.0,

    COLOR_DUTY    = "#588878",
    COLOR_DEEP    = "#1e3a2e",
    COLOR_GHOST   = "#b0d8c0",

    ZORDER_DUTY   = 133,
    ZORDER_FX     = 135,
    AUTOINC_BASE  = 1102000,
}

local _crestT    = 0
local _cdLeft    = 0
local _turnT     = 0
local _dutyID    = 0
local _restID    = 0
local _crestFx   = nil
local _scheduler = nil
local _autoInc   = 0

local function GenID(prefix)
    _autoInc = _autoInc + 1
    return string.format("%s_%d", prefix or "SFD",
        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 ShiftDuty.OnDuty(tid)
    return _crestT > 0 and tid == _dutyID
end

function ShiftDuty.OnRest(tid)
    return _crestT > 0 and tid == _restID
end

-- 轮休判定：歇岗的那一只整只按住
SL:RegisterLUAEvent(LUA_EVENT_ACTION_CHECK, "SFD_Rest", function(tid)
    if ShiftDuty.OnRest(tid) then
        return false
    end
    return true
end)

-- 换岗钟：三秒一响，出手的去歇，歇着的接岗
local function ShiftTurn()
    if not SL:GetValue("ACTOR_ALIVE", _restID) then
        ShowTip("歇岗的那只倒了——岗白排了")
        return
    end
    _dutyID, _restID = _restID, _dutyID
    SL:TipAbove(_dutyID, "岗")
    SL:TipAbove(_restID, "休")
    SL:PlayShiftFx(_dutyID)
end

function ShiftDuty.Cast()
    if _cdLeft > 0 or _crestT > 0 then return end
    local tid = SL:GetValue("MARK_TARGET_ID")
    if not tid then return end
    local other = SL:FindNearMonster(tid, 300)
    if not other then
        ShowTip("就一只怪——排什么岗")
        return
    end
    _cdLeft = CONST.CREST_CD
    _crestT = CONST.CREST_LIFE
    _turnT = CONST.TURN_LIFE
    _dutyID = tid
    _restID = other
    SL:TipAbove(tid, "岗")
    SL:TipAbove(other, "休")
    SafeRemove(_crestFx)
    _crestFx = GUI:Layout_Create(GUI:Attach_SceneF(),
        GenID("Duty"), 0, 0, 0, 0, false)
    GUI:setLocalZOrder(_crestFx, CONST.ZORDER_DUTY)
    SL:PlayDutyUpFx(tid)
    ShowTip("排岗了——一只出手一只歇，三秒一轮")
end

-- 定时器：纹成倒计时与换岗钟驱动
if not _scheduler then
    _scheduler = SL:Schedule(function(dt)
        _cdLeft = math.max(0, _cdLeft - dt)
        if _crestT > 0 then
            _crestT = _crestT - dt
            _turnT = _turnT - dt
            if _turnT <= 0 then
                _turnT = CONST.TURN_LIFE
                ShiftTurn()
            end
            local a = GetActorPos(_dutyID)
            local b = GetActorPos(_restID)
            if _crestFx and a and b then
                GUI:setPosition(_crestFx,
                    (a.x + b.x) / 2, (a.y + b.y) / 2 - 140)
            end
            if _crestT <= 0 then
                SafeRemove(_crestFx)
                ShowTip("岗撤了——两只一齐扑上来了")
            end
        end
    end, 0.02)
end

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

function ShiftDuty.Unload()
    if _scheduler then SL:Unschedule(_scheduler) end
    SL:UnregisterLUAEvent(LUA_EVENT_ACTION_CHECK, "SFD_Rest")
    SafeRemove(_crestFx)
    _crestT = 0
end

return ShiftDuty