[RS]Volatility Bands V0

study(title='[RS]Volatility Bands V0', overlay=true)
src = input(close)
max_change_0 = na(max_change_0[1]) ? 0 : max(change(src, 1), max_change_0[1])
max_change_1 = na(max_change_1[1]) ? 0 : max(change(src, 2), max_change_1[1])
max_change_2 = na(max_change_2[1]) ? 0 : max(change(src, 3), max_change_2[1])
max_change_3 = na(max_change_3[1]) ? 0 : max(change(src, 4), max_change_3[1])
max_change_4 = na(max_change_4[1]) ? 0 : max(change(src, 5), max_change_4[1])
max_change_5 = na(max_change_5[1]) ? 0 : max(change(src, 6), max_change_5[1])
max_change_10 = na(max_change_10[1]) ? 0 : max(change(src, 11), max_change_10[1])
max_change_100 = na(max_change_100[1]) ? 0 : max(change(src, 101), max_change_100[1])

plot(close+max_change_0-change(src, 1), style=circles, color=red, offset=0)
plot(close+max_change_1-change(src, 2), style=line, color=red, offset=1)
plot(close+max_change_2-change(src, 3), style=circles, color=red, offset=2)
plot(close+max_change_3-change(src, 4), style=circles, color=red, offset=3)
plot(close+max_change_4-change(src, 5), style=circles, color=red, offset=4)
plot(close+max_change_5-change(src, 6), style=circles, color=red, offset=5)
plot(close+max_change_10-change(src, 11), style=line, color=red, offset=10)
plot(close+max_change_100-change(src, 101), style=line, color=red, offset=100)

plot(close-max_change_0+change(src, 1), style=circles, color=lime, offset=0)
plot(close-max_change_1+change(src, 2), style=line, color=lime, offset=1)
plot(close-max_change_2+change(src, 3), style=circles, color=lime, offset=2)
plot(close-max_change_3+change(src, 4), style=circles, color=lime, offset=3)
plot(close-max_change_4+change(src, 5), style=circles, color=lime, offset=4)
plot(close-max_change_5+change(src, 6), style=circles, color=lime, offset=5)
plot(close-max_change_10+change(src, 11), style=line, color=lime, offset=10)
plot(close-max_change_100+change(src, 101), style=line, color=lime, offset=100)