双生跳纹：纹不随尸灭，跳去下一只

 fx-twinjump

-- @file TwinJump.lua
-- 双生纹 —— 纹不随尸灭，跳去下一只

local TwinJump = {}

local CONST = {
    CREST_LIFE    = 12.0,
    CREST_CD      = 4.0,
    SEARCH_RANGE  = 400,

    COLOR_JUMP    = "#b85868",
    COLOR_DEEP    = "#481828",
    COLOR_GHOST   = "#f0c0c8",

    ZORDER_JUMP   = 133,
    ZORDER_FX     = 135,
    AUTOINC_BASE  = 1087000,
}

local _crestT    = 0
local _hostID    = 0
local _cdLeft    = 0
local _crestFx   = nil
local _scheduler = nil
local _autoInc   = 0

local function GenID(prefix)
    _autoInc = _autoInc + 1
    return string.format("%s_%d", prefix or "TNJ",
        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 HostAlive()
    return _hostID ~= 0
        and SL:GetValue("ACTOR_ALIVE", _hostID)
end

-- 跳迁结算：宿主倒下的同一拍找下一只
local function TryJump()
    if _crestT <= 0 or HostAlive() then return end
    local next = SL:FindNearMonster(_hostID, CONST.SEARCH_RANGE)
    SafeRemove(_crestFx)
    if not next then
        ShowTip("纹没处跳了——跟着这只一起灭了")
        _crestT = 0
        _hostID = 0
        return
    end
    SL:PlayJumpOutFx(_hostID)
    _hostID = next
    SL:PlayJumpInFx(next)
    _crestFx = GUI:Layout_Create(GUI:Attach_SceneF(),
        GenID("Crest"), 0, 0, 0, 0, false)
    GUI:setLocalZOrder(_crestFx, CONST.ZORDER_JUMP)
    ShowTip("纹跳走了——落到下一只头上")
end

SL:RegisterLUAEvent(LUA_EVENT_MONSTER_DEAD, "TNJ_Jump",
function(deadID)
    if deadID == _hostID then TryJump() end
end)

function TwinJump.Cast()
    if _cdLeft > 0 or _crestT > 0 then return end
    local tid = SL:GetValue("MARK_TARGET_ID")
    if not tid then return end
    _cdLeft = CONST.CREST_CD
    _crestT = CONST.CREST_LIFE
    _hostID = tid
    SafeRemove(_crestFx)
    _crestFx = GUI:Layout_Create(GUI:Attach_SceneF(),
        GenID("Crest"), 0, 0, 0, 0, false)
    GUI:setLocalZOrder(_crestFx, CONST.ZORDER_JUMP)
    SL:PlayCrestMarkFx(tid)
    ShowTip("双生纹烙上了——它死了纹就跳下一只")
end

-- 定时器：驻留倒计时与纹的跟脚
if not _scheduler then
    _scheduler = SL:Schedule(function(dt)
        _cdLeft = math.max(0, _cdLeft - dt)
        TryJump()
        if _crestT > 0 and _hostID ~= 0 then
            _crestT = _crestT - dt
            local hp = GetActorPos(_hostID)
            if _crestFx and hp then
                GUI:setPosition(_crestFx, hp.x, hp.y - 162)
            end
            if _crestT <= 0 then
                SafeRemove(_crestFx)
                ShowTip("纹光散了——没等到下一只")
            end
        end
    end, 0.02)
end

SL:ScheduleOnce(function()
    SL:BindDebugButton("跳纹", function()
        TwinJump.Cast()
    end)
    ShowTip("技能已加载: 双生纹 (调试按钮触发)")
end, 1.0)

function TwinJump.Unload()
    if _scheduler then SL:Unschedule(_scheduler) end
    SL:UnregisterLUAEvent(LUA_EVENT_MONSTER_DEAD, "TNJ_Jump")
    SafeRemove(_crestFx)
    _crestT = 0
end

return TwinJump