同调击：和影子同拍出手，同拍那一击翻倍

 fx-syncstrike

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-- @file        SyncStrike.lua
-- @brief       同调击 —— 影子抄你的拍，同拍翻倍
--              客户端表现模块：配置表 / 影子构件 / 同调状态机 / 定时器
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local SyncStrike = {}

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-- 配置与常量
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local CONST = {
    SYNC_LIFE     = 8.0,        -- 同调八秒
    SYNC_CD       = 12.0,       -- 冷却十二秒
    SYNC_WINDOW   = 0.3,        -- 零点三秒同调窗
    MY_CRIT       = 24,         -- 同调翻倍二十四
    MY_BASE       = 12,         -- 平时十二
    SHADOW_DMG    = 10,         -- 影子爪十
    SHADOW_GAP    = 1.2,        -- 影子一点二一爪
    SHADOW_DIST   = 60,         -- 影子跟在身后六十步

    -- 颜色
    COLOR_SYNC    = "#88b8e0",  -- 同调蓝
    COLOR_DEEP    = "#1a3a6e",  -- 深蓝
    COLOR_GHOST   = "#dceaf8",  -- 调白

    ZORDER_GROUND = 118,
    ZORDER_SHADOW = 129,
    ZORDER_EFFECT = 135,

    AUTOINC_BASE  = 967000,
}

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-- 模块内部状态
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local _syncT      = 0              -- 同调余时
local _myLast     = -9             -- 我上一刀戳
local _shLast     = -9             -- 影子上一爪戳
local _shAtkT     = 0              -- 影子出手计时
local _cdLeft     = 0
local _sysT       = 0              -- 模块时钟
local _scheduler  = nil
local _autoInc    = 0

local m_cos = math.cos
local m_sin = math.sin

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-- 辅助函数
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local function GenID(prefix)
    _autoInc = _autoInc + 1
    return string.format("%s_%d", prefix or "SYS", CONST.AUTOINC_BASE + _autoInc)
end

local function GetActorPos(actorID)
    if not actorID then return nil end
    local x = SL:GetValue("ACTOR_POSITION_X", actorID)
    local y = SL:GetValue("ACTOR_POSITION_Y", actorID)
    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

---影子构件：半透明的残影体
local function CreateShadowNode()
    local node = GUI:Layout_Create(GUI:Attach_SceneF(), GenID("Shd"), 0, 0, 0, 0, false)
    GUI:setLocalZOrder(node, CONST.ZORDER_SHADOW)
    for i = 1, 14 do
        local a1 = (i - 1) / 14 * 6.28
        local a2 = i / 14 * 6.28
        GUI:DrawLine_Create(node, string.format("s_%d", i), 0, 0, 2,
            m_cos(a1) * 18, m_sin(a1) * 40, m_cos(a2) * 18, m_sin(a2) * 40,
            CONST.COLOR_GHOST, 140)
    end
    return node
end

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-- 同调入口
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function SyncStrike.Cast()
    if _cdLeft > 0 or _syncT > 0 then return end
    _cdLeft = CONST.SYNC_CD
    _syncT = CONST.SYNC_LIFE
    _myLast, _shLast = -9, -9
    CreateShadowNode()
    ShowTip("同调开了——影子抄你的拍，拍稳了刀刀翻倍")
end

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-- 同调判定
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local function IsSync()
    if _syncT <= 0 then return false end
    if _myLast < 0 or _shLast < 0 then return false end
    return math.abs(_myLast - _shLast) <= CONST.SYNC_WINDOW
end

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-- 双方出手结算
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local function My_Strike(tid)
    local sync = IsSync()
    local dmg = sync and CONST.MY_CRIT or CONST.MY_BASE
    SL:ActorHurt(tid, dmg)
    SL:TipAbove(tid, "-" .. dmg)
    if sync then SL:PlaySyncFx() end
end

local function Shadow_Strike(tid)
    if IsSync() then
        SL:ActorHurt(tid, CONST.MY_CRIT)
        SL:TipAbove(tid, "-同调")
    else
        SL:ActorHurt(tid, CONST.SHADOW_DMG)
    end
end

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-- 定时器：影子跟拍与出手结算
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if not _scheduler then
    _scheduler = SL:Schedule(function(dt)
        _sysT = _sysT + dt
        _cdLeft = math.max(0, _cdLeft - dt)
        if _syncT > 0 then
            _syncT = _syncT - dt
            if _syncT <= 0 then
                ShowTip("同调散了——影子归鞘")
            end
        end
        _shAtkT = _shAtkT - dt
        if _shAtkT <= 0 then
            _shAtkT = CONST.SHADOW_GAP
            _shLast = _sysT
            local tid = SL:GetValue("MARK_TARGET_ID")
            if tid then Shadow_Strike(tid) end
        end
    end, 0.02)
end

SL:RegisterLUAEvent(LUA_EVENT_LOCAL_HIT, "SYS_Hit", function()
    _myLast = _sysT
    local tid = SL:GetValue("MARK_TARGET_ID")
    if tid then My_Strike(tid) end
end)

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

return SyncStrike