Testing lines in last candle crossing

Question

I would like to know if someone could help me with this part code. I have 2 arrays of lines, one for support and one for resistance. I would like to be able to detect when one line is testing a candle but just for last candle crossing. I got this so far but this code just check previous candle.

for i = 0 to support.size() - 1
      
    if (high[1] > support.get(i).get_y1() and math.max(open[1],close[1])< support.get(i).get_y1()) or (low[1] < support.get(i).get_y1() and math.min(open[1],close[1])> support.get(i).get_y1()) 
          lastCrossedBar := bar_index
          deleteLine := true
          if deleteLine
               line.delete(support.get(i)) 
for i = 0 to resistance.size() - 1
    if (high[1] > resistance.get(i).get_y1() and math.max(open[1],close[1])< resistance.get(i).get_y1()) or (low[1] < resistance.get(i).get_y1() and math.min(open[1],close[1])> resistance.get(i).get_y1())
          lastCrossedBar := bar_index
          deleteLine := true
          if deleteLine        
               line.delete(resistance.get(i))

Thank you!

Image description

Answer 1

[] in pinescript is called history reference operator.

If you use it like [1] it will refer to the previous candle. So, just remove them and if you want to avoid repainting add barstate.isconfirmed as an additional condition to the cross.