蓄能爆：攻击蓄能，满能量释放爆发

 fx-enburst

-- @file EnergyBurst.lua
-- 蓄能爆 —— 攻击蓄能，满能量释放爆发

local EnergyBurst = {}

local CONST = {
    ENERGY_CAP    = 3,
    BURST_DMG     = 60,
    BURST_RADIUS  = 60,

    COLOR_ENERGY  = "#d0b848",
    COLOR_DEEP    = "#584810",
    COLOR_GHOST   = "#f4e8b0",

    ZORDER_ENERGY = 133,
    ZORDER_FX     = 135,
    AUTOINC_BASE  = 1073000,
}

local _energy    = 0
local _cdLeft    = 0
local _energyFx  = nil
local _scheduler = nil
local _autoInc   = 0

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

function EnergyBurst.AddEnergy()
    if _energy >= CONST.ENERGY_CAP then return end
    _energy = _energy + 1
    SL:PlayEnergyUpFx(SL:GetValue("USER_ID"), _energy)
end

-- 引爆出口：清空所有能量一炮轰出
function EnergyBurst.Detonate()
    if _energy < CONST.ENERGY_CAP then
        ShowTip("能量不足——" .. _energy .. "/" .. CONST.ENERGY_CAP)
        return
    end
    local myID = SL:GetValue("USER_ID")
    local mp = GetActorPos(myID)
    if not mp then return end
    local tid = SL:GetValue("MARK_TARGET_ID")
    local tp = tid and GetActorPos(tid)
    if not tp then return end
    local dmg = CONST.BURST_DMG
    SL:ActorHurt(tid, dmg)
    SL:TipAbove(tid, "爆-60")
    SL:PlayBurstExplosionFx(tid)
    SL:ScreenShake(3.4, 0.22)
    _energy = 0
    ShowTip("蓄能爆发——六十点砸它脸上")
    if SL:GetValue("ACTOR_DEAD", tid) then
        ShowTip("它倒了——被蓄能炮送走的")
    end
end

-- 定时器：能量条跟脚
if not _scheduler then
    _scheduler = SL:Schedule(function(dt)
        if _energyFx then
            local myID = SL:GetValue("USER_ID")
            local mp = GetActorPos(myID)
            if _energyFx and mp then
                GUI:setPosition(_energyFx, mp.x, mp.y - 118)
            end
        end
    end, 0.02)
end

SL:ScheduleOnce(function()
    SL:BindDebugButton("引爆", function()
        EnergyBurst.Detonate()
    end)
    ShowTip("技能已加载: 蓄能爆 (调试按钮触发)")
end, 1.0)

function EnergyBurst.Unload()
    if _scheduler then SL:Unschedule(_scheduler) end
    SafeRemove(_energyFx)
    _energy = 0
end

return EnergyBurst