Adapted from Pinescript Manual's "Pivot Points Standard". Added extra levels and midlines as well as user inputs for color and a "show labels" on/off switch.
So this will show the Pivot level, the resulting levels R1,R2,R3,S1,S2,S3 and the midpoint lines between these.
User can choose the Higher timeframe period from which to calculate these pivot levels, as per the original script.
I like to add two of these to a chart, one for daily and one for weekly pivot levels.
If you don't need any particular level, just comment out the appropriate lines (one from each of the second last and third last blocks in the script).