血誓：献血二十换八秒双倍输出

 fx-bloodvow

-- @file BloodVow.lua
-- 血誓 —— 献血二十换八秒双倍输出

local BloodVow = {}

local CONST = {
    VOW_LIFE      = 8.0,
    VOW_COST      = 20,
    VOW_AMP       = 2.0,
    VOW_CD        = 5.0,

    COLOR_VOW     = "#c04848",
    COLOR_DEEP    = "#4e1010",
    COLOR_GHOST   = "#f0b0b0",

    ZORDER_VOW    = 133,
    ZORDER_FX     = 135,
    AUTOINC_BASE  = 1074000,
}

local _vowT      = 0
local _cdLeft    = 0
local _vowFx     = nil
local _scheduler = nil
local _autoInc   = 0

local function GenID(prefix)
    _autoInc = _autoInc + 1
    return string.format("%s_%d", prefix or "BVW",
        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 BloodVow.Cast()
    if _cdLeft > 0 or _vowT > 0 then return end
    local myID = SL:GetValue("USER_ID")
    local hp = SL:GetValue("ACTOR_HP", myID)
    if not hp or hp <= CONST.VOW_COST then
        ShowTip("血见底了——血誓不敢再开")
        return
    end
    _cdLeft = CONST.VOW_CD
    _vowT = CONST.VOW_LIFE
    SL:ActorHurt(myID, CONST.VOW_COST)
    SafeRemove(_vowFx)
    _vowFx = GUI:Layout_Create(GUI:Attach_SceneF(),
        GenID("Vow"), 0, 0, 0, 0, false)
    GUI:setLocalZOrder(_vowFx, CONST.ZORDER_VOW)
    SL:PlayVowUpFx(myID)
    SL:TipAboveMe("血誓！")
    ShowTip("血誓成——八秒双倍输出，自己也掉血")
end

-- 双倍出口：誓环期的刀翻倍
SL:RegisterLUAEvent(LUA_EVENT_MELEE_HIT, "BVW_Amp", function(tid)
    if _vowT > 0 then
        local base = SL:GetValue("HIT_DAMAGE", tid) or 10
        return base
    end
    return 0
end)

-- 定时器：誓环倒计时与誓环跟脚
if not _scheduler then
    _scheduler = SL:Schedule(function(dt)
        _cdLeft = math.max(0, _cdLeft - dt)
        if _vowT > 0 then
            _vowT = _vowT - dt
            local myID = SL:GetValue("USER_ID")
            local mp = GetActorPos(myID)
            if _vowFx and mp then
                GUI:setPosition(_vowFx, mp.x, mp.y - 52)
            end
            if _vowT <= 0 then
                SafeRemove(_vowFx)
                ShowTip("誓散了——回到平常的刀")
            end
        end
    end, 0.02)
end

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

function BloodVow.Unload()
    if _scheduler then SL:Unschedule(_scheduler) end
    SL:UnregisterLUAEvent(LUA_EVENT_MELEE_HIT, "BVW_Amp")
    SafeRemove(_vowFx)
    _vowT = 0
end

return BloodVow