挪桩：挪一根路标，把它遛进你算好的道

 fx-waypoint

-- @file WayPoint.lua
-- 挪桩 —— 挪一根路标，把它遛进你算好的道

local WayPoint = {}

local CONST = {
    STAKE_L       = 380,
    STAKE_R       = 590,
    STAKE_R_NEW   = 430,
    MOVE_SPEED    = 30,
    TRAP_L        = 460,
    TRAP_R        = 520,
    TRAP_DMG      = 6,
    MOVE_CD       = 3.0,

    COLOR_STAKE   = "#8a7048",
    COLOR_DEEP    = "#3e3218",
    COLOR_GHOST   = "#e8d8b0",

    ZORDER_STAKE  = 128,
    ZORDER_FX     = 135,
    AUTOINC_BASE  = 1034000,
}

local _stakeR    = CONST.STAKE_R
local _moved     = false
local _cdLeft    = 0
local _stakeFx   = nil
local _scheduler = nil
local _autoInc   = 0

local function GenID(prefix)
    _autoInc = _autoInc + 1
    return string.format("%s_%d", prefix or "WPT",
        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

function WayPoint.MoveStake()
    if _cdLeft > 0 then
        ShowTip("桩在挪——" .. string.format("%.1f", _cdLeft) .. "秒")
        return
    end
    if _moved then
        ShowTip("桩已经挪了——看它一趟趟地挨扎")
        return
    end
    _cdLeft = CONST.MOVE_CD
    _moved = true
    _stakeR = CONST.STAKE_R_NEW
    SL:RefreshPatrolAnchors(SL:GetValue("MARK_TARGET_ID"),
        CONST.STAKE_L, _stakeR)
    SL:PlayStakeMoveFx(_stakeR)
    SL:TipAbove(_stakeR, "桩挪了")
    ShowTip("路标挪了——它的道现在横穿刺阵")
end

-- 巡逻结算：踩刺的账
local function TrapTick(tid, tp)
    if tp.x < CONST.TRAP_L or tp.x > CONST.TRAP_R then
        return false
    end
    SL:ActorHurt(tid, CONST.TRAP_DMG)
    SL:TipAbove(tid, "扎-6")
    SL:PlaySpikeTickFx(tp.x, tp.y)
    return true
end

-- 定时器：巡逻插值与刺阵结算
if not _scheduler then
    _scheduler = SL:Schedule(function(dt)
        _cdLeft = math.max(0, _cdLeft - dt)
        local tid = SL:GetValue("MARK_TARGET_ID")
        if not tid or SL:GetValue("ACTOR_DEAD", tid) then return end
        local tp = GetActorPos(tid)
        if not tp then return end
        if tp.x >= _stakeR then
            SL:SetActorDir(tid, 6)
        elseif tp.x <= CONST.STAKE_L then
            SL:SetActorDir(tid, 2)
        end
        local dir = SL:GetValue("ACTOR_DIR", tid)
        local step = dir == 2 and CONST.MOVE_SPEED
            or -CONST.MOVE_SPEED
        local nx = math.max(CONST.STAKE_L,
            math.min(_stakeR, tp.x + step * dt))
        SL:SetActorPos(tid, nx, tp.y)
        SL:PlayPatrolWalkFx(tid)
        if TrapTick(tid, { x = nx, y = tp.y }) then
            if SL:GetValue("ACTOR_DEAD", tid) then
                ShowTip("它被自己的巡逻道扎死了")
            end
        end
    end, 0.02)
end

SL:ScheduleOnce(function()
    SL:BindDebugButton("挪桩", function()
        WayPoint.MoveStake()
    end)
    ShowTip("技能已加载: 挪桩 (调试按钮触发)")
end, 1.0)

function WayPoint.Unload()
    if _scheduler then SL:Unschedule(_scheduler) end
end

return WayPoint