游斗：换目标打，每换一次加一成

 fx-roamhit

-- @file RoamHit.lua
-- 游斗 —— 换目标打，每换一次加一成

local RoamHit = {}

local CONST = {
    SWAP_CAP      = 5,
    AMP_PER_SWAP  = 0.2,
    BASE_DMG      = 10,
    SWAP_WINDOW   = 3.0,

    COLOR_ROAM    = "#78b868",
    COLOR_DEEP    = "#1e4a28",
    COLOR_GHOST   = "#c8ecd0",

    ZORDER_ROAM   = 133,
    ZORDER_FX     = 135,
    AUTOINC_BASE  = 1063000,
}

local _lastT     = -1
local _swapN     = 0
local _swapT     = 0
local _scheduler = nil
local _autoInc   = 0

local function GenID(prefix)
    _autoInc = _autoInc + 1
    return string.format("%s_%d", prefix or "RMH",
        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 CalcDmg()
    return CONST.BASE_DMG + CONST.BASE_DMG * _swapN
        * CONST.AMP_PER_SWAP
end

function RoamHit.OnSwap(newTID)
    if _lastT >= 0 and newTID ~= _lastT then
        _swapN = math.min(_swapN + 1, CONST.SWAP_CAP)
        _swapT = CONST.SWAP_WINDOW
        SL:PlaySwapUpFx(newTID, _swapN)
    end
    _lastT = newTID
end

-- 出刀结算：换标层数并入伤害
SL:RegisterLUAEvent(LUA_EVENT_MELEE_HIT, "RMH_Amp", function(tid)
    RoamHit.OnSwap(tid)
    if _swapN > 0 then
        return math.floor(CONST.BASE_DMG * _swapN
            * CONST.AMP_PER_SWAP)
    end
    return 0
end)

-- 定时器：换标窗口清零
if not _scheduler then
    _scheduler = SL:Schedule(function(dt)
        if _swapT > 0 then
            _swapT = _swapT - dt
            if _swapT <= 0 then
                _swapN = 0
                ShowTip("游斗超时——加成清零")
            end
        end
    end, 0.02)
end

SL:ScheduleOnce(function()
    SL:BindDebugButton("游斗", function()
        ShowTip("游斗加了" .. _swapN * 2 .. "%——换着打才有")
    end)
    ShowTip("技能已加载: 游斗 (调试按钮触发)")
end, 1.0)

function RoamHit.Unload()
    if _scheduler then SL:Unschedule(_scheduler) end
    _swapN = 0
    _swapT = 0
end

return RoamHit