蓄盾爆：按住攒盾，盾值就是弹量

 fx-wardpop

-- @file WardPop.lua
-- 蓄盾爆 —— 按住蓄盾点按引爆

local WardPop = {}

local CONST = {
    SHIELD_RATE   = 8,
    SHIELD_CAP    = 16,
    BOOM_RADIUS   = 60,

    COLOR_WARD    = "#d09840",
    COLOR_DEEP    = "#584010",
    COLOR_GHOST   = "#f4dca0",

    ZORDER_WARD   = 132,
    ZORDER_FX     = 135,
    AUTOINC_BASE  = 1053000,
}

local _shield    = 0
local _holding   = false
local _wardFx    = nil
local _scheduler = nil
local _autoInc   = 0

local function GenID(prefix)
    _autoInc = _autoInc + 1
    return string.format("%s_%d", prefix or "WDP",
        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 PopWard()
    local val = math.floor(_shield)
    _shield = 0
    local myID = SL:GetValue("USER_ID")
    local mp = GetActorPos(myID)
    if not mp then return end
    SL:PlayWardBoomFx(mp.x, mp.y)
    SL:ScreenShake(3.4, 0.22)
    local hit = false
    for _, tid in ipairs(SL:GetAllActorsInView()) do
        local tp = GetActorPos(tid)
        if tp and math.abs(tp.x - mp.x) <= CONST.BOOM_RADIUS then
            SL:ActorHurt(tid, val)
            SL:TipAbove(tid, "爆-" .. val)
            hit = true
        end
    end
    if hit then
        ShowTip("盾爆了——" .. val .. "点糊它脸上")
    else
        ShowTip("盾爆了——可惜它离得远，空响")
    end
end

-- 按下：起盾
function WardPop.Press()
    if _holding or _shield > 0 then return end
    _holding = true
    _shield = 0
    SafeRemove(_wardFx)
    _wardFx = GUI:Layout_Create(GUI:Attach_SceneF(),
        GenID("Ward"), 0, 0, 0, 0, false)
    GUI:setLocalZOrder(_wardFx, CONST.ZORDER_WARD)
    ShowTip("按住了——盾在攒，攒多少炸多少")
end

-- 松开：引爆
function WardPop.Release()
    if not _holding then return end
    _holding = false
    SafeRemove(_wardFx)
    _wardFx = nil
    if _shield < 4 then
        _shield = 0
        ShowTip("盾太薄——引不出响，按满再放")
        return
    end
    PopWard()
end

-- 定时器：盾值上涨与盾环跟脚
if not _scheduler then
    _scheduler = SL:Schedule(function(dt)
        if _holding then
            _shield = math.min(CONST.SHIELD_CAP,
                _shield + CONST.SHIELD_RATE * dt)
            local myID = SL:GetValue("USER_ID")
            local mp = GetActorPos(myID)
            if _wardFx and mp then
                GUI:setPosition(_wardFx, mp.x, mp.y - 52)
            end
        end
    end, 0.02)
end

SL:ScheduleOnce(function()
    SL:BindDebugButtonHold("蓄盾",
        function() WardPop.Press() end,
        function() WardPop.Release() end)
    ShowTip("技能已加载: 蓄盾爆 (调试按钮触发)")
end, 1.0)

function WardPop.Unload()
    if _scheduler then SL:Unschedule(_scheduler) end
    SafeRemove(_wardFx)
    _holding = false
    _shield = 0
end

return WardPop