对咒和纹：它念三音你跟三音，跟对炸回去

flowchart TD
A[怪起咒] --> B[双碑依次亮三下]
B --> C[跟音窗口五秒]
C --> D[照顺序点碑]
D --> E{三音全对吗}
E -- 对 --> F[反咒三十 它僵住]
E -- 错或超时 --> G[它吞咒回血三十]
F --> H[冷却再等下一咒]
G --> H

 fx-crest-countercharm

-- @file CrestCountercharm.lua
-- 对咒和纹 —— 它念三音你跟三音 跟对炸回去

local CrestCountercharm = {}

local CONST = {
    CHANT_LEN     = 3,
    INPUT_WINDOW  = 5,
    COUNTER_DMG   = 30,
    MISS_HEAL     = 30,
    STUN_TIME     = 1.5,
    CHANT_CD      = 6,

    AUTOINC_BASE  = 1203500,
}

local _seq      = {}
local _phase    = 0
local _showI    = 0
local _flash    = 0
local _win      = 0
local _input    = {}
local _stun     = 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

function CrestCountercharm.Phase() return _phase end

-- 跟音: 记账到第三音开判
function CrestCountercharm.Note(stone)
    if _phase ~= 2 then
        ShowTip(_phase == 1 and "还在听它念——别抢拍" or "碑没亮——等它起咒")
        return
    end
    _input[#_input + 1] = stone
    if #_input >= CONST.CHANT_LEN then
        local ok = true
        for i = 1, CONST.CHANT_LEN do
            if _input[i] ~= _seq[i] then ok = false break end
        end
        _phase = 0
        _input = {}
        if ok then
            _stun = CONST.STUN_TIME
            ShowTip("跟对三音——反咒" .. CONST.COUNTER_DMG .. "!")
        else
            ShowTip("跟错了——它吞咒回血" .. CONST.MISS_HEAL)
        end
    end
end

if not _ticker then
    _ticker = SL:Schedule(function(dt)
        if _stun > 0 then _stun = _stun - dt end
        if _phase == 0 then
            if _stun <= 0 then
                _cd = _cd - dt
                if _cd <= 0 then
                    _cd = CONST.CHANT_CD
                    _phase = 1
                    _showI = 0
                    _seq = {}
                    for i = 1, CONST.CHANT_LEN do
                        _seq[i] = math.random(2)
                    end
                    ShowTip("它起咒了——看碑上亮的顺序")
                end
            end
        elseif _phase == 1 then
            _flash = _flash - dt
            if _flash <= 0 then
                _flash = 0.8
                _showI = _showI + 1
                if _showI > CONST.CHANT_LEN then
                    _phase = 2
                    _win = CONST.INPUT_WINDOW
                    _input = {}
                    ShowTip("到你了——照亮的顺序跟")
                end
            end
        elseif _phase == 2 then
            _win = _win - dt
            if _win <= 0 then
                _phase = 0
                _input = {}
                ShowTip("音散了——白跟")
            end
        end
    end, 0.05)
end

SL:ScheduleOnce(function()
    SL:BindDebugButton("左碑", function() CrestCountercharm.Note(1) end)
    SL:BindDebugButton("右碑", function() CrestCountercharm.Note(2) end)
    ShowTip("技能已加载: 对咒和纹")
end, 1.0)

function CrestCountercharm.Unload()
    if _ticker then SL:Unschedule(_ticker) end
    _phase = 0
end

return CrestCountercharm