拔刀斩：出鞘入鞘一瞬间

SL:SetActorVelocity(self_, 900, 0)

 fx-iaido

local Iaido = {}
local KEY = { DASH_SPD = 900 }

local st = { phase = "idle", t = 0 }

local function SetPhase(name)
    st.phase = name
    st.t = 0
end

function IA.Slash(self_, target)
    if st.phase ~= "idle" then return end
    SetPhase("crouch")
    SL:PlayActorAct(self_, "cast")
    SL:Schedule(function(dt)
        st.t = st.t + dt
        if st.phase == "crouch" and st.t > 0.5 then
            SetPhase("dash")
            SL:PlayActorAct(self_, "run")
            -- 核心一行: 九百像素每秒弹射
            SL:SetActorVelocity(self_, KEY.DASH_SPD, 0)
            -- 残影: 每 0.03s 记录一个历史位置
            SL:PlayGhostTrail(self_)
            local tx = SL:GetValue("actorX", target)
            if SL:GetValue("actorX", self_) >= tx - 30 then
                SL:UnSchedule("iaidoRun")
                SL:SetActorVelocity(self_, 0, 0)
                SetPhase("flash")
                IA.Flash(target)
            end
        end
    end, 0.016, "iaidoRun")
end

function IA.Flash(target)
    SL:FlashScreen("#ffffff", 0.15)
    SL:ScreenShake(0.26, 5)
    SL:PlayFxAt("iaido_slash", SL:GetValue("actorX", target),
                                SL:GetValue("actorY", target) - 58)
    SL:DeductHp(target, 56)
    SL:ShowHitNum(target, 56, "iaido")
    SL:PlayActorAct(target, "stuck")
    SL:Stun(target, 1.0)
    SL:ScheduleOnce(function()
        SetPhase("cool")
        SL:SetActorX("player", 120)
        SL:ShowSystemTips("入鞘 — 收刀待机")
        SL:ScheduleOnce(function()
            st.phase = "idle"
        end, 1.2)
    end, 0.6)
end

return IA