接力：用甲减乙的冷却，轮转不断

 fx-cdrelay

-- @file CdRelay.lua
-- 接力 —— 用甲减乙的冷却，轮转不断

local CdRelay = {}

local CONST = {
    SKILL_CD      = 3.0,
    RELAY_REDUCE  = 2.0,
    SKILL_DMG     = 12,

    COLOR_RELAY   = "#c89040",
    COLOR_DEEP    = "#503810",
    COLOR_GHOST   = "#f4d8a0",

    ZORDER_RELAY  = 132,
    ZORDER_FX     = 135,
    AUTOINC_BASE  = 1064000,
}

local _cdA     = 0
local _cdB     = 0
local _scheduler = nil
local _autoInc = 0

local function GenID(prefix)
    _autoInc = _autoInc + 1
    return string.format("%s_%d", prefix or "CDR",
        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 HitTarget(dmg, tag)
    local tid = SL:GetValue("MARK_TARGET_ID")
    if not tid or SL:GetValue("ACTOR_DEAD", tid) then return end
    SL:ActorHurt(tid, dmg)
    SL:TipAbove(tid, tag .. "-" .. dmg)
    SL:PlayRelayHitFx(tid, tag)
    if SL:GetValue("ACTOR_DEAD", tid) then
        ShowTip("它倒了——接力收的尾")
    end
end

function CdRelay.UseA()
    if _cdA > 0 then
        ShowTip("甲在冷——" .. string.format("%.1f", _cdA) .. "秒")
        return
    end
    _cdA = CONST.SKILL_CD
    _cdB = math.max(0, _cdB - CONST.RELAY_REDUCE)
    HitTarget(CONST.SKILL_DMG, "甲")
    ShowTip("甲出了——乙的冷却减二秒")
end

-- 乙技入口
function CdRelay.UseB()
    if _cdB > 0 then
        ShowTip("乙在冷——" .. string.format("%.1f", _cdB) .. "秒")
        return
    end
    _cdB = CONST.SKILL_CD
    _cdA = math.max(0, _cdA - CONST.RELAY_REDUCE)
    HitTarget(CONST.SKILL_DMG, "乙")
    ShowTip("乙出了——甲的冷却减二秒")
end

-- 定时器：双冷却推进
if not _scheduler then
    _scheduler = SL:Schedule(function(dt)
        if _cdA > 0 then _cdA = math.max(0, _cdA - dt) end
        if _cdB > 0 then _cdB = math.max(0, _cdB - dt) end
    end, 0.02)
end

SL:ScheduleOnce(function()
    SL:BindDebugButton("甲", function()
        CdRelay.UseA()
    end)
    SL:BindDebugButton2("乙", function()
        CdRelay.UseB()
    end)
    ShowTip("技能已加载: 接力 (调试按钮触发)")
end, 1.0)

function CdRelay.Unload()
    if _scheduler then SL:Unschedule(_scheduler) end
    _cdA = 0
    _cdB = 0
end

return CdRelay