炮仗：给它别一枚炮仗，三秒后听响

 fx-firecracker

-- @file Firecracker.lua
-- 炮仗 —— 给它别一枚炮仗，三秒后听响

local Firecracker = {}

local CONST = {
    FUSE_TIME     = 3.0,
    POP_DMG       = 25,
    CRACKER_CD    = 4.0,

    COLOR_CRACK   = "#d84040",
    COLOR_DEEP    = "#5e1010",
    COLOR_GHOST   = "#f8b0a8",

    ZORDER_FUSE   = 134,
    ZORDER_FX     = 135,
    AUTOINC_BASE  = 1021000,
}

local _fuseT     = 0
local _fuseID    = 0
local _cdLeft    = 0
local _crackerFx = nil
local _scheduler = nil
local _autoInc   = 0

local function GenID(prefix)
    _autoInc = _autoInc + 1
    return string.format("%s_%d", prefix or "FCR",
        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 AttachCracker(tid)
    local tp = GetActorPos(tid)
    if not tp then return end
    SafeRemove(_crackerFx)
    _crackerFx = GUI:Layout_Create(GUI:Attach_SceneF(),
        GenID("Cracker"), tp.x - 14, tp.y - 100, 0, 0, false)
    GUI:setLocalZOrder(_crackerFx, CONST.ZORDER_FUSE)
    SL:PlayFuseSparkFx(tid)
    SL:TipAbove(tid, "别上！")
    ShowTip("炮仗别上了——三秒引信，捂耳朵")
end

local function PopCracker()
    local tp = GetActorPos(_fuseID)
    if tp then
        SL:ActorHurt(_fuseID, CONST.POP_DMG)
        SL:TipAbove(_fuseID, "砰！-25")
        SL:PlayPopFx(_fuseID)
        SL:ScreenShake(3.6, 0.24)
        ShowTip("响了——二十五点，一截炮仗的账")
        if SL:GetValue("ACTOR_DEAD", _fuseID) then
            ShowTip("它倒了——被炮仗送走的")
        end
    end
    SafeRemove(_crackerFx)
    _crackerFx = nil
end

-- 别炮仗入口
function Firecracker.Stick()
    if _cdLeft > 0 then
        ShowTip("炮仗在手——" .. string.format("%.1f", _cdLeft) .. "秒")
        return
    end
    if _fuseT > 0 then
        ShowTip("捻子烧着呢——" .. string.format("%.1f", _fuseT) .. "秒")
        return
    end
    local tid = SL:GetValue("MARK_TARGET_ID")
    if not tid or SL:GetValue("ACTOR_DEAD", tid) then return end
    _cdLeft = CONST.CRACKER_CD
    _fuseT = CONST.FUSE_TIME
    _fuseID = tid
    AttachCracker(tid)
end

-- 定时器：引信燃烧与爆响结算
if not _scheduler then
    _scheduler = SL:Schedule(function(dt)
        _cdLeft = math.max(0, _cdLeft - dt)
        if _fuseT <= 0 then return end
        if SL:GetValue("ACTOR_DEAD", _fuseID) then
            _fuseT = 0
            SafeRemove(_crackerFx)
            _crackerFx = nil
            return
        end
        _fuseT = _fuseT - dt
        local tp = GetActorPos(_fuseID)
        if _crackerFx and tp then
            GUI:setPosition(_crackerFx, tp.x - 14, tp.y - 100)
        end
        if _fuseT <= 0 then PopCracker() end
    end, 0.02)
end

SL:ScheduleOnce(function()
    SL:BindDebugButton("别炮仗", function()
        Firecracker.Stick()
    end)
    ShowTip("技能已加载: 炮仗 (调试按钮触发)")
end, 1.0)

function Firecracker.Unload()
    if _scheduler then SL:Unschedule(_scheduler) end
    SafeRemove(_crackerFx)
    _fuseT = 0
end

return Firecracker