灼羽：一支火羽钉上去，烧完六秒连成火海

 fx-burnfeather

-- @file BurnFeather.lua
-- 灼羽 —— 一支火羽钉上去，烧完六秒连成火海

local BurnFeather = {}

local CONST = {
    BURN_LIFE     = 6.0,
    BURN_CD       = 4.0,
    BURN_DMG      = 12,
    SPLASH_AT     = 2.0,   -- 烧到两秒后溅燃
    SPLASH_DMG    = 6,     -- 小怪一秒六
    SPLASH_LIFE   = 4.0,   -- 小怪烧四秒
    SPLASH_RANGE  = 80,

    COLOR_BURN    = "#f08838",
    COLOR_GHOST   = "#ffe0c0",
    ZORDER_FX     = 135,

    AUTOINC_BASE  = 968000,
}

local _mainBurn  = { t = 0, tick = 0 }
local _minionBurn = { t = 0, tick = 0 }
local _splashed  = false
local _cdLeft    = 0
local _scheduler = nil
local _autoInc   = 0

local function GenID(prefix)
    _autoInc = _autoInc + 1
    return string.format("%s_%d", prefix or "BNF",
        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

-- 火羽入口
function BurnFeather.Cast()
    if _cdLeft > 0 then return end
    if _mainBurn.t > 0 then return end
    _cdLeft = CONST.BURN_CD
    _mainBurn.t = CONST.BURN_LIFE
    _mainBurn.tick = 0
    _splashed = false
    ShowTip("火羽钉了——两秒后火星溅给小怪")
end

-- 定时器
if not _scheduler then
    _scheduler = SL:Schedule(function(dt)
        _cdLeft = math.max(0, _cdLeft - dt)
        if _mainBurn.t <= 0 then return end
        _mainBurn.t = _mainBurn.t - dt
        _mainBurn.tick = _mainBurn.tick + dt
        if _mainBurn.tick >= 1.0 then
            _mainBurn.tick = _mainBurn.tick - 1.0
            SL:ActorHurt(SL:GetValue("MARK_TARGET_ID"),
                CONST.BURN_DMG)
        end
        if not _splashed and _mainBurn.t <= CONST.SPLASH_AT then
            _splashed = true
            local mid = GetActorPos(
                SL:GetValue("MARK_TARGET_ID"))
            if mid then
                SL:PlaySplashFx(mid.x, mid.y)
                SL:TipAbove(SL:GetValue("MINION_ID"), "溅燃")
                _minionBurn.t = CONST.SPLASH_LIFE
                _minionBurn.tick = 0
            end
        end
        if _minionBurn.t > 0 then
            _minionBurn.t = _minionBurn.t - dt
            _minionBurn.tick = _minionBurn.tick + dt
            if _minionBurn.tick >= 1.0 then
                _minionBurn.tick = _minionBurn.tick - 1.0
                SL:ActorHurt(SL:GetValue("MINION_ID"),
                    CONST.SPLASH_DMG)
            end
        end
    end, 0.02)
end

SL:RegisterLUAEvent(LUA_EVENT_SCENE_CLEAR, "BNF_Clear", function()
    _mainBurn, _minionBurn = { t = 0, tick = 0 }, { t = 0, tick = 0 }
    _splashed = false
end)

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

return BurnFeather