连痛：拴住两只打一只，另一只陪疼

 fx-painlink

-- @file PainLink.lua
-- 连痛 —— 拴住两只打一只，另一只陪疼

local PainLink = {}

local CONST = {
    LINK_SHARE    = 0.3,
    LINK_RADIUS   = 200,

    COLOR_LINK    = "#c04080",
    COLOR_DEEP    = "#4a1030",
    COLOR_GHOST   = "#f0b8d4",

    ZORDER_LINK   = 129,
    ZORDER_FX     = 135,
    AUTOINC_BASE  = 1050000,
}

local _pairA     = 0
local _pairB     = 0
local _linked    = false
local _linkFx    = nil
local _scheduler = nil
local _autoInc   = 0

local function GenID(prefix)
    _autoInc = _autoInc + 1
    return string.format("%s_%d", prefix or "PNK",
        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 PickPair()
    local list = SL:GetAllActorsInView()
    if #list < 2 then return nil end
    return list[1], list[2]
end

function PainLink.Link()
    if _linked then
        ShowTip("线还拴着——两只一起疼")
        return
    end
    local a, b = PickPair()
    if not a or not b then
        ShowTip("得两只都在——少一只拴不住")
        return
    end
    _pairA, _pairB = a, b
    _linked = true
    SafeRemove(_linkFx)
    _linkFx = GUI:Layout_Create(GUI:Attach_SceneF(),
        GenID("Link"), 0, 0, 0, 0, false)
    GUI:setLocalZOrder(_linkFx, CONST.ZORDER_LINK)
    SL:PlayLinkUpFx(a, b)
    SL:TipAbove(a, "拴！")
    SL:TipAbove(b, "拴！")
    ShowTip("紫线拴上了——打一只，另一只陪三成")
end

-- 陪痛结算：拴线期打一只陪一只
SL:RegisterLUAEvent(LUA_EVENT_BEFORE_HURT, "PNK_Share", function(tid, dmg)
    if not _linked then return dmg end
    local other = 0
    if tid == _pairA then other = _pairB end
    if tid == _pairB then other = _pairA end
    if other ~= 0 and not SL:GetValue("ACTOR_DEAD", other) then
        local share = math.max(1,
            math.floor(dmg * CONST.LINK_SHARE))
        SL:ActorHurt(other, share)
        SL:TipAbove(other, "陪-" .. share)
        SL:PlayShareFx(other)
        if SL:GetValue("ACTOR_DEAD", other) then
            ShowTip("陪疼的那只倒了——线还拴着活口")
        end
    end
    return dmg
end)

-- 定时器：紫线跟脚
if not _scheduler then
    _scheduler = SL:Schedule(function()
        if not _linked then return end
        local ap = GetActorPos(_pairA)
        local bp = GetActorPos(_pairB)
        if _linkFx and ap and bp then
            GUI:setPosition(_linkFx,
                (ap.x + bp.x) / 2,
                (ap.y + bp.y) / 2 - 80)
        end
    end, 0.02)
end

SL:ScheduleOnce(function()
    SL:BindDebugButton("连痛", function()
        PainLink.Link()
    end)
    ShowTip("技能已加载: 连痛 (调试按钮触发)")
end, 1.0)

function PainLink.Unload()
    if _scheduler then SL:Unschedule(_scheduler) end
    SL:UnregisterLUAEvent(LUA_EVENT_BEFORE_HURT, "PNK_Share")
    SafeRemove(_linkFx)
    _linked = false
    _pairA = 0
    _pairB = 0
end

return PainLink