钟摆：半场一摆，谁站线上谁挨砸

 fx-pendulumsw

-- @file PendulumSw.lua
-- 钟摆 —— 半场一摆，谁站线上谁挨砸

local PendulumSw = {}

local CONST = {
    SWING_L       = 300,
    SWING_R       = 420,
    SWING_GAP     = 2.4,
    SWING_WINDOW  = 0.4,
    SWING_DMG     = 15,
    SWING_STUN    = 1.0,

    COLOR_PEND    = "#c89098",
    COLOR_DEEP    = "#54282e",
    COLOR_GHOST   = "#f4d8dc",

    ZORDER_SWING  = 136,
    ZORDER_FX     = 135,
    AUTOINC_BASE  = 1057000,
}

local _stunT     = 0
local _stunID    = 0
local _cdLeft    = 0
local _scheduler = nil
local _autoInc   = 0

local function GenID(prefix)
    _autoInc = _autoInc + 1
    return string.format("%s_%d", prefix or "PDS",
        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 ShowTip(msg)
    if msg and msg ~= "" then SL:ShowSystemTips(msg) end
end

local function InSweep(x, k)
    local sweep = CONST.SWING_L
        + k * (CONST.SWING_R - CONST.SWING_L)
    return math.abs(x - sweep) <= 30
end

local function Smashed(tid)
    _stunT = CONST.SWING_STUN
    _stunID = tid
    SL:ActorHurt(tid, CONST.SWING_DMG)
    SL:TipAbove(tid, "砸-15")
    SL:StunActor(tid, CONST.SWING_STUN)
    SL:PlaySmashFx(tid)
    SL:ScreenShake(3, 0.2)
    ShowTip("摆锤砸中——十五点外加懵一秒")
    if SL:GetValue("ACTOR_DEAD", tid) then
        ShowTip("它倒了——被摆锤送走的")
    end
end

-- 定时器：摆锤相位与扫线结算
if not _scheduler then
    _scheduler = SL:Schedule(function(dt)
        _cdLeft = math.max(0, _cdLeft - dt)
        if _stunT > 0 then
            _stunT = _stunT - dt
            if _stunT <= 0 then
                ShowTip("它缓过来了——再引一趟")
            end
            return
        end
        local tid = SL:GetValue("MARK_TARGET_ID")
        if not tid or SL:GetValue("ACTOR_DEAD", tid) then return end
        local phase = SL:GetTime() % CONST.SWING_GAP
        if phase >= 1.0 and phase < 1.0 + CONST.SWING_WINDOW then
            local k = (phase - 1.0) / CONST.SWING_WINDOW
            local tp = GetActorPos(tid)
            if tp and InSweep(tp.x, k) then
                Smashed(tid)
            end
        end
    end, 0.02)
end

SL:ScheduleOnce(function()
    SL:BindDebugButton("引怪", function()
        SL:HurryFoeTowardUser()
    end)
    ShowTip("技能已加载: 钟摆 (调试按钮触发)")
end, 1.0)

function PendulumSw.Unload()
    if _scheduler then SL:Unschedule(_scheduler) end
    SL:UnregisterLUAEvent(LUA_EVENT_BEFORE_HURT, "PDS_Shield")
    _stunT = 0
end

return PendulumSw