双形武：一念换形，刀快锤沉

 fx-twostance

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-- @file        TwoStance.lua
-- @brief       双形武 —— 一念换形，刀快锤沉
--              客户端表现模块：配置表 / 姿态表 / 攻击循环 / 定时器
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local TwoStance = {}

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-- 配置与常量
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local CONST = {
    -- 刀形
    BLADE_GAP     = 1.1,        -- 一秒一拍
    BLADE_DMG     = 11,         -- 一口十一
    -- 锤形
    HAMMER_GAP    = 2.0,        -- 两秒一拍
    HAMMER_DMG    = 24,         -- 一口二十四
    HAMMER_DAZE   = 0.5,        -- 踉跄加时
    -- 换形
    SWAP_CD       = 2.0,        -- 换形冷却

    -- 颜色
    COLOR_BLADE   = "#e3b341",  -- 刀金
    COLOR_HAMMER  = "#f0883e",  -- 锤橙
    COLOR_GHOST   = "#ffd866",  -- 残影金

    ZORDER_GROUND = 118,
    ZORDER_ARC    = 134,
    ZORDER_EFFECT = 135,

    AUTOINC_BASE  = 924000,
}

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-- 姿态表：两种形各一行
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local STANCES = {
    blade  = { gap = CONST.BLADE_GAP,  dmg = CONST.BLADE_DMG,
               daze = 0, arc = 28, lw = 4 },
    hammer = { gap = CONST.HAMMER_GAP, dmg = CONST.HAMMER_DMG,
               daze = CONST.HAMMER_DAZE, arc = 36, lw = 7 },
}

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-- 模块内部状态
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local _stance   = STANCES.blade
local _atkT     = 0.6
local _swapCd   = 0
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 "TWS", 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

---弧光构件：两种形共用，粗细随姿态
local function CreateArc(x, y, ang, r, color, lw)
    local node = GUI:Layout_Create(GUI:Attach_SceneF(), GenID("Arc"), x, y, 0, 0, false)
    GUI:setLocalZOrder(node, CONST.ZORDER_ARC)
    GUI:setRotation(node, -math.deg(ang))
    for i = -2, 2 do
        local a = i * 0.28
        GUI:DrawLine_Create(node, string.format("s_%d", i), 0, 0, lw,
            m_cos(a - 0.5) * r * 0.8, m_sin(a - 0.5) * r * 0.8,
            m_cos(a + 0.5) * r * 0.8, m_sin(a + 0.5) * r * 0.8,
            color, 230)
    end
    GUI:setScale(node, 0.5)
    GUI:runAction(node, GUI:ActionSequence(
        GUI:ActionSpawn(
            GUI:ActionScaleTo(0.14, 1.4, 1.4),
            GUI:ActionFadeOut(0.20)
        ),
        GUI:CallFunc(function() SafeRemove(node) end)
    ))
end

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-- 攻击循环：读姿态表干活
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local function Stance_Strike(myID, targetID, st)
    local mp = GetActorPos(myID)
    local tp = GetActorPos(targetID)
    if not mp or not tp then return end
    local ang = (mp.x < tp.x) and 0.5 or 2.6
    CreateArc(mp.x + m_cos(ang) * 26, mp.y - 52, ang, st.arc, st == STANCES.hammer
        and CONST.COLOR_HAMMER or CONST.COLOR_BLADE, st.lw)
    SL:ActorHurt(targetID, st.dmg)
    SL:TipAbove(targetID, "-" .. st.dmg)
    if st.daze > 0 then
        SL:SlowAttack(targetID, 1.0, st.daze)   -- 加时踉跄
        SL:TipAbove(targetID, "踉跄")
    end
    if st == STANCES.hammer then
        SL:ScreenShake(4, 0.22)
    end
end

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-- 换形入口
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function TwoStance.Swap()
    if _swapCd > 0 then return end
    _swapCd = CONST.SWAP_CD
    _stance = (_stance == STANCES.blade) and STANCES.hammer or STANCES.blade
    ShowTip(_stance == STANCES.blade and "刀形——一秒一拍" or "锤形——两秒一拍")
end

function TwoStance.IsBlade()
    return _stance == STANCES.blade
end

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-- 定时器与调试
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if not _scheduler then
    _scheduler = SL:Schedule(function(dt)
        _swapCd = math.max(0, _swapCd - dt)
        _atkT = _atkT - dt
        if _atkT <= 0 then
            _atkT = _stance.gap
            local myID = SL:GetValue("USER_ID")
            local targetID = SL:GetValue("MARK_TARGET_ID")
            if targetID then
                Stance_Strike(myID, targetID, _stance)
            end
        end
    end, 0.02)
end

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

SL:RegisterLUAEvent(LUA_EVENT_TARGET_DEAD, "TWS_Dead", function()
    _atkT = 0.3
end)

return TwoStance