@hexis777 Try this code:
Scan for DEMA_green and DEMA_red.
Code:
def demaSlow = DEMA(close, 8);#8
def demaFast = DEMA(close, 21);#21
plot demaFastlt = DEMA(close, 50);#50
demaFastlt.SetLineWeight(2);
plot demaFastvlt = DEMA(close, 200);#200
demaFastvlt.SetLineWeight(4);
def HAclose = ohlc4;
def HAopen = CompoundValue(1,(HAopen[1] + HAclose[1]) / 2,
(open[1] + close[1]) / 2);
def HAhigh = Max(Max(high, HAopen), HAclose);
def HAlow = Min(Min(low, HAopen), HAclose);
def demaCrossingOverGoingDown = demaSlow[1] > demaFast[1] and demaSlow < demaFast;
def demaCrossingOverGoingUp = demaSlow < demaFast and demaSlow[-1] > demaFast[-1];
def HARed = HAOpen > HAclose;
def HAGreen = !HARed;
def HADecidedRed = HARed and HAHigh == HAopen;
def HADecidedGreen = HAGreen and HAlow == HAOpen;
######################################################################################
######################################################################################
#def sellsignal = demaCrossingOverGoingDown and (HADecidedRed or HADecidedRed[1] or HADecidedRed[2]);
def sellsignal = demaCrossingOverGoingDown and close < demaFastlt and (HADecidedRed or HADecidedRed[1] or HADecidedRed[2]);
#def buysignal = demaCrossingOverGoingUp and (HADecidedGreen or HADecidedGreen[1] or HADecidedGreen[2]);
def buysignal = demaCrossingOverGoingUp and close > demaFastlt and (HADecidedGreen or HADecidedGreen[1] or HADecidedGreen[2]);
#When testing need to turn the comment "" off
#AddVerticalLine(close crosses demaFastvlt, close, Color.yellow, Curve.SHORT_DASH);
#AddVerticalLine(buysignal, close, Color.GREEN, Curve.SHORT_DASH);
AddChartBubble(demaCrossingOverGoingUp, low,"DEMA HA",Color.dark_green);
AddChartBubble(demaCrossingOverGoingDown, high,"DEMA HA",Color.dark_red);
plot DEMA_green = demaCrossingOverGoingUp;
plot DEMA_red = demaCrossingOverGoingDown;
Dema_green.SetPaintingStrategy(PaintingStrategy.BOOLEAN_ARROW_UP);
DEMA_red.SetPaintingStrategy(PaintingStrategy.BOOLEAN_ARROW_Down);
Scan for DEMA_green and DEMA_red.