接刀白纹：爪落的半拍里接住，反噬一记

flowchart TD
A[怪起爪] --> B[红光预警半拍]
B --> C{半拍里举刀了吗}
C -- 举了 --> D[架住 反噬二十]
C -- 没举 --> E[照挨一爪]
F[红光外举刀] --> G[接早了 白接]
D --> H[白环炸开]
E --> H
G --> A
H --> A

 fx-crest-parry

-- @file CrestParry.lua
-- 接刀白纹 —— 爪落的半拍里接住 反噬一记

local CrestParry = {}

local CONST = {
    TELL_TIME     = 0.6,
    COUNTER_DMG   = 20,
    TRY_CD        = 1,

    AUTOINC_BASE  = 1201000,
}

local _tell     = false
local _raised   = false
local _cd       = 0
local _autoInc  = 0

local function ShowTip(msg)
    if msg and msg ~= "" then SL:ShowSystemTips(msg) end
end

local function GenID()
    _autoInc = _autoInc + 1
    return CONST.AUTOINC_BASE + _autoInc
end

-- 预告口: 红光亮起推这里
function CrestParry.OnTelegraph()
    _tell = true
end

function CrestParry.IsTelling() return _tell end

-- 举刀: 读预告在不在
function CrestParry.Raise()
    if _cd > 0 then
        ShowTip("手腕还在麻——再等" .. math.ceil(_cd) .. "秒")
        return false
    end
    _cd = CONST.TRY_CD
    if _tell then
        _raised = true
        ShowTip("接住了!反噬一记")
        return true
    end
    ShowTip("接早了——等红光亮起再接")
    return false
end

-- 受击结算: 认举刀标记
function CrestParry.OnHurt()
    _tell = false
    if _raised then
        _raised = false
        ShowTip("反噬" .. CONST.COUNTER_DMG
            .. "——它吃了自己一记")
        return true
    end
    return false
end

if not _ticker then
    _ticker = SL:Schedule(function(dt)
        if _cd > 0 then _cd = _cd - dt end
    end, 0.05)
end

SL:ScheduleOnce(function()
    SL:BindDebugButton("接刀!", function()
        CrestParry.Raise()
    end)
    ShowTip("技能已加载: 接刀白纹")
end, 1.0)

function CrestParry.Unload()
    if _ticker then SL:Unschedule(_ticker) end
    _tell = false
    _raised = false
end

return CrestParry