Lua预输入：连招间隙的指令缓存

flowchart TD
A[按键按下] --> B{正在出招}
B -- 否 --> C[直接起手 连击加一]
B -- 是 --> D{缓冲开着}
D -- 是 --> E[指令入缓存 挂起]
E --> F[后摇结束]
F --> G[缓存指令自动接上]
D -- 否 --> H[提示错过窗口 作废]
G --> A

 fx-inputbuffer

-- @file InputBuffer.lua
-- 预输入 —— 连招间隙的指令缓存

local InputBuffer = {}

local CONST = {
    WINDUP_LIFE   = 0.6,
    ACTIVE_LIFE   = 0.3,
    RECOVER_LIFE  = 0.6,

    AUTOINC_BASE  = 1155000,
}

local _phase      = 0
local _phaseT     = 0
local _combo      = 0
local _bufferOn   = true
local _buffered   = false
local _phaseLife  = { 0.6, 0.3, 0.6 }

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

function InputBuffer.Buffered()
    return _buffered
end

function InputBuffer.Combo()
    return _combo
end

function InputBuffer.SetBuffer(on)
    _bufferOn = on
end

local function StartSwing()
    _combo = _combo + 1
    _phase = 1
    _phaseT = 0
end

-- 三段节奏：前摇判定后摇逐段走
if not _scheduler then
    _scheduler = SL:Schedule(function(dt)
        if _phase == 0 then return end
        _phaseT = _phaseT + dt
        if _phaseT < _phaseLife[_phase] then return end
        _phaseT = _phaseT - _phaseLife[_phase]
        _phase = _phase + 1
        if _phase > 3 then
            _phase = 0
            if _buffered and _bufferOn then
                _buffered = false
                StartSwing()
                ShowTip("缓存的指令接上了——第"
                    .. _combo .. "连")
            else
                ShowTip("后摇结束——没缓存就断连")
            end
        end
    end, 0.02)
end

-- 指令入口：空手直接起手，出招期进缓存
function InputBuffer.Attack()
    if _phase == 0 then
        StartSwing()
        ShowTip("出招第" .. _combo .. "连")
        return
    end
    if _bufferOn and not _buffered then
        _buffered = true
        ShowTip("指令进缓存——等后摇结束自动接上")
    else
        ShowTip("错过窗口——这招没接上")
    end
end

function InputBuffer.ToggleBuffer()
    _bufferOn = not _bufferOn
    ShowTip(_bufferOn and "缓冲开了" or "缓冲关了")
end

SL:ScheduleOnce(function()
    SL:BindDebugButton("出招", function()
        InputBuffer.Attack()
    end)
    ShowTip("技能已加载: 预输入 (调试按钮触发)")
end, 1.0)

function InputBuffer.Unload()
    _phase = 0
    _combo = 0
    _buffered = false
    if _scheduler then SL:Unschedule(_scheduler) end
end

return InputBuffer