CTO Line indicator for TradingView

cto_line.pine

//@version=4
study(title="CTO Line", shorttitle="CTO", overlay=true, resolution="")
smma(src, length) =>
    smma = 0.0
    smma := na(smma[1]) ? sma(src, length) : (smma[1] * (length - 1) + src) / length
    smma
v1 = smma(hl2, 15)
m1 = smma(hl2, 19)
m2 = smma(hl2, 25)
v2 = smma(hl2, 29)
p2 = v1<m1 != v1<v2 or m2<v2 != v1<v2
p3 = not p2 and v1<v2
p1 = not p2 and not p3
c = p1 ? color.orange : p2 ? color.silver : color.navy
line1 = plot(v1, "Line 1", color=c)
line2 = plot(v2, "Line 2", color=c)
fill(line1, line2, color=c)