Pinescript-两行相遇时发出警报

我有一个问题,当两条线在烛台上相遇时,我想在指示器上触发警报。我在脚本中使用实时蜡烛,所以可以执行这种状态。不幸的是,旧的交易在一根蜡烛后被执行,在某些情况下会导致错误的交易。是否可以在下面的脚本中完全在蜡烛上执行警报?我试了好几次都没有成功。

Screen Picture

//@version=5
strategy("Test 37", process_orders_on_close=true, max_bars_back = 4000, overlay=true, max_lines_count=500, max_labels_count=500, calc_on_every_tick=true)

tick = syminfo.ticker

ZZPercent = input.float(0.45, title="Minimum % Change")

trend = 0
trend := na(trend[1]) ? 1 : trend[1]
LL = 0.0
LL := na(LL[1]) ? low : LL[1]
HH = 0.0
HH := na(HH[1]) ? high : HH[1]

PivotChg = ZZPercent * 0.01
float zigzag = na

if (trend > 0)       // trend is up, look for new swing low
    if (high >= HH)  // new higher high detected
        HH := high
        //label.new(bar_index, na, "", color=color.rgb(233, 7, 7), textcolor=color.black, style=label.style_label_down, yloc=yloc.belowbar)
    else
        if (low < HH * (1 - PivotChg))
            zigzag := high[1]
            trend := -1
            LL := low

        // Short- Auslöser 
        if (low < HH * (1 - PivotChg))
            label.new(bar_index, na, "", color=color.rgb(240, 53, 6), textcolor=color.black, style=label.style_label_down, yloc=yloc.abovebar)
            alert("SS_Alert Short " + str.tostring(tick), alert.freq_once_per_bar)  // , freq = alert.freq_all   alert.freq_once_per_bar


else                 // trend is down, look for new swing high
    if (low <= LL)   // new lower low detected
        LL := low
        //label.new(bar_index, na, "", color=color.green, textcolor=color.black, style=label.style_label_up, yloc=yloc.belowbar)
    else
        if (high > LL * (1 + PivotChg))
            zigzag := low[1]
            trend := 1
            HH := high

        // Long- Auslöser 
        if (high > LL * (1 + PivotChg))
            label.new(bar_index, na, "", color=color.green, textcolor=color.black, style=label.style_label_up, yloc=yloc.belowbar)
            alert("LL_Alert Long " + str.tostring(tick), alert.freq_once_per_bar)  // , freq = alert.freq_all   alert.freq_once_per_bar


plot(series=zigzag, linewidth=2, style=plot.style_line, offset=-1)