藏锋：满血那一刀三倍狠，见血就收

 fx-sheathed

-- @file Sheathed.lua
-- 藏锋 —— 满血那一刀三倍狠，见血就收

local Sheathed = {}

local CONST = {
    FULL_AMP      = 3.0,
    BASE_DMG      = 10,
    SHEATH_CD     = 8.0,

    COLOR_EDGE    = "#e0c050",
    COLOR_DEEP    = "#584810",
    COLOR_GHOST   = "#f8ecb8",

    ZORDER_EDGE   = 133,
    ZORDER_FX     = 135,
    AUTOINC_BASE  = 1002000,
}

local _cdLeft    = 0
local _scheduler = nil
local _autoInc   = 0

local function GenID(prefix)
    _autoInc = _autoInc + 1
    return string.format("%s_%d", prefix or "SHD",
        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 IsFullHp()
    local myID = SL:GetValue("USER_ID")
    local hp = SL:GetValue("ACTOR_HP", myID)
    local hpM = SL:GetValue("ACTOR_MAX_HP", myID)
    if not hp or not hpM or hpM <= 0 then return false end
    return hp >= hpM
end

local function EdgeOut(tid)
    local out = math.floor(CONST.BASE_DMG * CONST.FULL_AMP)
    SL:ActorHurt(tid, out)
    SL:TipAbove(tid, "-" .. out)
    SL:PlayEdgeFlashFx(tid)
    SL:ScreenShake(3, 0.2)
    ShowTip("藏锋出鞘——一刀三十，血已见锋，锋收了")
end

-- 满额出口：出刀前查血条
SL:RegisterLUAEvent(LUA_EVENT_MELEE_HIT, "SHD_Edge", function(tid)
    if IsFullHp() then
        local base = SL:GetValue("HIT_DAMAGE", tid) or CONST.BASE_DMG
        return math.floor(base * CONST.FULL_AMP)
    end
    return 0
end)

-- 归鞘入口
function Sheathed.Resheath()
    if _cdLeft > 0 then
        ShowTip("鞘在合——" .. string.format("%.1f", _cdLeft) .. "秒")
        return
    end
    if IsFullHp() then
        ShowTip("已是满血——锋在鞘里，出刀吧")
        return
    end
    _cdLeft = CONST.SHEATH_CD
    local myID = SL:GetValue("USER_ID")
    SL:RestoreActorHp(myID)
    SL:PlayResheathFx(myID)
    SL:TipAboveMe("回满")
    ShowTip("归鞘了——血回满，锋又磨出来了")
end

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

SL:ScheduleOnce(function()
    SL:BindDebugButton("归鞘", function()
        Sheathed.Resheath()
    end)
    ShowTip("技能已加载: 藏锋 (调试按钮触发)")
end, 1.0)

function Sheathed.Unload()
    if _scheduler then SL:Unschedule(_scheduler) end
    SL:UnregisterLUAEvent(LUA_EVENT_MELEE_HIT, "SHD_Edge")
end

return Sheathed