Define Pip Size: Since 1 pip for XAUUSD is usually considered as 0.1, the pip Size is set to 0.1. A 50-pip interval is therefore 50 * 0.1 = 5.0.
Nearest Pip Level Calculation: We find the nearest 50-pip level based on the current price of XAUUSD. The formula nearestPipLevel = round(close / pipInterval) * pipInterval rounds the current price to the nearest multiple of the 50-pip interval.
Loop for Multiple Lines: We use a loop that runs from -20 to 20 to plot horizontal ray lines 50 pips above and below the current price. The range (-20 to 20) ensures there are enough lines plotted both above and below the price.
Horizontal Ray Lines: The line.new function is used to draw the horizontal rays, extending to the right.
Plot Current Price: We also plot the closing price with a blue line to make it easier to track the price against the horizontal rays.