Parabolischer SAR

//@version=6
indicator("Parabolic SAR", overlay=true)
start  = input.float(0.02, "Start")
inc    = input.float(0.02, "Increment")
maxVal = input.float(0.2,  "Max")
sar = ta.sar(start, inc, maxVal)
longSignal  = ta.crossover(close, sar)
shortSignal = ta.crossunder(close, sar)
plotshape(longSignal,  style=shape.triangleup,   location=location.belowbar, color=color.green, size=size.small)
plotshape(shortSignal, style=shape.triangledown, location=location.abovebar, color=color.red,   size=size.small)
plot(sar, "SAR", style=plot.style_cross, color=close >= sar ? color.green : color.red, linewidth=2)

def sar = ParabolicSAR();
def buySignal = close crosses above sar;
def sellSignal = close crosses below sar;
AddOrder(OrderType.BUY_AUTO, buySignal, close, 1, Color.GREEN, Color.GREEN, "SAR Buy");
AddOrder(OrderType.SELL_AUTO, sellSignal, close, 1, Color.RED, Color.RED, "SAR Exit");
plot SARLine = sar;
SARLine.SetDefaultColor(Color.ORANGE);