叠劲：连打同门一刀重一刀，断了就得从头数

 fx-stackforce

-- @file StackForce.lua
-- 叠劲 —— 连打同门一刀重一刀，断了从头数

local StackForce = {}

local CONST = {
    BASE_DMG      = 8,
    STEP_DMG      = 4,
    STACK_CAP     = 6,
    LINK_WINDOW   = 2.0,
    BURST_CD      = 3.0,

    COLOR_FORCE   = "#d8b04a",
    COLOR_DEEP    = "#5e4a1a",
    COLOR_GHOST   = "#f8e4b0",

    ZORDER_PIPS   = 133,
    ZORDER_FX     = 135,
    AUTOINC_BASE  = 988000,
}

local _stack     = 0
local _linkT     = 0
local _burstCd   = 0
local _pipsFx    = nil
local _scheduler = nil
local _autoInc   = 0

local function GenID(prefix)
    _autoInc = _autoInc + 1
    return string.format("%s_%d", prefix or "SKF",
        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 StackDamage()
    return CONST.BASE_DMG + CONST.STEP_DMG * (_stack - 1)
end

local function HitStack(tid)
    if _stack < CONST.STACK_CAP then
        _stack = _stack + 1
    end
    _linkT = CONST.LINK_WINDOW
    local dmg = StackDamage()
    SL:ActorHurt(tid, dmg)
    SL:TipAbove(tid, "-" .. dmg)
    SL:PlayHitFx(tid, _stack)
    if _stack >= CONST.STACK_CAP then
        ShowTip("六层叠满——刀刀二十八，别断劲")
    end
    return dmg
end

-- 催劲：把当前层数的劲一记压出去
function StackForce.Burst()
    if _burstCd > 0 then
        ShowTip("劲在聚——" .. string.format("%.1f", _burstCd) .. "秒")
        return
    end
    if _stack <= 0 then
        ShowTip("还没起势——先普攻一刀")
        return
    end
    _burstCd = CONST.BURST_CD
    local tid = SL:GetValue("MARK_TARGET_ID")
    local tp = GetActorPos(tid)
    if tp then
        SL:ActorHurt(tid, StackDamage())
        SL:TipAbove(tid, "催-" .. StackDamage())
        SL:PlayBurstFx(tp.x, tp.y - 60)
        _linkT = CONST.LINK_WINDOW
        ShowTip("催劲" .. StackDamage() .. "——"
            .. _stack .. "层的劲全压进去")
    end
end

-- 定时器：沙漏衰减与连段守护
if not _scheduler then
    _scheduler = SL:Schedule(function(dt)
        _burstCd = math.max(0, _burstCd - dt)
        if _stack > 0 then
            _linkT = _linkT - dt
            if _linkT <= 0 then
                _stack = 0
                ShowTip("劲断了——两秒没接上，从头再叠")
            end
        end
    end, 0.02)
end

-- 普攻命中挂层
SL:RegisterLUAEvent(LUA_EVENT_MELEE_HIT, "SKF_Hit", function(tid)
    HitStack(tid)
end)

SL:ScheduleOnce(function()
    SL:BindDebugButton("催劲", function()
        StackForce.Burst()
    end)
    ShowTip("技能已加载: 叠劲 (调试按钮触发)")
end, 1.0)

function StackForce.Unload()
    if _scheduler then SL:Unschedule(_scheduler) end
    SL:UnregisterLUAEvent(LUA_EVENT_MELEE_HIT, "SKF_Hit")
    SafeRemove(_pipsFx)
end

return StackForce