Need some pointers on programming a pivot indicator

[tsnewb]

Beginner here. I've got an attempt at the bottom here, but I'm starting at part 2, just to get an arrow to print at the bottom of a pivot and already having issues. They do print correctly on some candles, but not on all candles that they should be on, and they also print on candles they shouldn't.


## 1. establish downtrend or uptrend
## if current pivot low is lower than prior pivot low
## then do the following for a downtrend pullback

## 2. for the first pivot high marked with a red 0
# if low of bar is lower than prior bar's low
# and high of bar is higher than prior bar's high
# then mark with a bubble with numeral 0


## 3. for the low pivot currently marked with a green 0
# if low of bar is lower than prior bars low
# and high of bar is lower than high of prior bars
# and it becomes a pivot low
# then mark with a bubble with numeral 0

## 4. for the pivot high currently marked with a red 1
# if high of bar is higher than prior bars high
# and low of bar is higher than low of prior bars
# and it becomes a pivot high
# then mark with a bubble with numeral 1

## 5. for the pivot low higher currently marked with a green 1
# if low of bar is lower than prior bars low
# and high of bar is lower than high of prior bars
# and it becomes a pivot low
# then mark with a bubble with the numeral 1

## 6. for the last pivot high currently marked with a red 0
# if high of bar is higher than prior bars high
# and low of bar is higher than low of prior bars
# and it becomes a pivot high
# then mark with a bubble with numeral 0


Here's where I'm at:
#pullback 1.2
## for the low pivot currently marked with a green 0
# if low of bar is lower than prior bars low
# and high of bar is lower than high of prior bars
# and it becomes a pivot low
# then mark with an up arrow
def downleg_first_entry = low < low[1] and high[0] < low[2] and high[1];
plot digit_0 = if downleg_first_entry then high else double.nan;
digit_0.SetPaintingStrategy(PaintingStrategy.BOOLEAN_ARROW_UP);
digit_0.SetLineWeight(3);
digit_0.SetDefaultColor(color.RED);
digit_0.HideBubble();
digit_0.HideTitle();


Here's what I'm trying to replicate:

Here's where I'm at now:

 

[rad14733]

@tsnewb Pivot and Trend Reversal indicators can be tricky... My suggestion would be to decipher (reverse engineer) several of the many pivot and reversal studies here in these forums... For a true trend reversal indicator, like ZigZagHighLow, recursion is required - along with ample conditional logic... You need to store and recall the higher high and lower low status... And yet another method is to use Fractal Patterns like the TOS ZigZagStepPattern Pattern...

 

[tsnewb]

Thanks for the pointers, that gives me a few directions.