旋风踢：三连踢踢出残影

 fx-spinkick

local SpinKick = {}
local KEY = { KICK_DUR = 0.75, KICKS = 3 }

local st = { kicking = false, kT = 0, kickN = 0, rot = 0 }
local launched = false, flyY = 0, flyVy = 0

function SK.Start(self_)
    if st.kicking then return end
    st.kicking = true
    st.kT = 0
    st.kickN = 0
    st.rot = 0
    SL:PlayActorAct(self_, "attack")
    SL:ShowSystemTips("旋风踢!")
end

function SK.Tick(dt, self_, target)
    if not st.kicking then return end
    st.kT = st.kT + dt
    st.rot = st.rot + dt * 12
    SL:SetActorRotate(self_, st.rot)
    -- 三连踢: 每 0.25 秒一踢
    local kickN = math.min(KEY.KICKS, math.floor(st.kT / 0.25) + 1)
    if kickN > st.kickN then
        st.kickN = kickN
        local dmg = kickN * 12
        SL:DeductHp(target, dmg)
        SL:ShowHitNum(target, dmg, "kick" .. kickN)
        SL:PlayBurst(SL:GetValue("actorX", target),
                     SL:GetValue("actorY", target) - 58, "gold_ring", 5)
        SL:PlaySfx("kick", kickN)
        if kickN >= KEY.KICKS then
            -- 第三踢: 踢飞
            launched = true
            flyY = 0
            flyVy = -260
            SL:ShowTipAbove(target, "踢飞!")
        end
    end
    -- 飞行物理: 被踢飞的目标
    if launched then
        flyVy = flyVy + 400 * dt
        flyY = flyY + flyVy * dt
        SL:SetActorY(target, SL:GetValue("groundY") + flyY)
        if flyY >= 0 then
            flyY = 0
            launched = false
            SL:PlayActorAct(target, "stuck")
            SL:PlayFxAt("land_dust", SL:GetValue("actorX", target),
                                    SL:GetValue("groundY"))
            SL:ScreenShake(0.24, 4)
            st.kicking = false
            SL:SetActorRotate(self_, 0)
            st.rot = 0
        end
    end
end

return SK