How to plot horizontal ray when plotting a line?

Question

I am wondering how to draw a horizontal ray (not a horizontal line) when using pinescript for plotting? For example, the following code draw lines for me

//@version=5
indicator("My script", overlay=true)

price1 = input.price(0, "Price 1", confirm=true)

price2 = price1 * 1.05
price3 = price1 * 0.95

plot(price1, color=color.yellow)
plot(price2, color=color.green)
plot(price3, color=color.red)

How can I change it in a way that plot Horizontal Rays instead of Horizontal lines?

Answer 1

You need an input.time() together with input.price(). The trick is, they need to have the same inline value in order for them to work together.

//@version=5
indicator("My script", overlay=true)

price1_val = input.price(0, "Price 1", inline="price", confirm=true)
price1_time = input.time(0, "Time", inline="price", confirm=true)

var ray_drawn = false

if (not ray_drawn)
    line.new(price1_time, price1_val, price1_time + 1, price1_val, color=color.yellow, extend=extend.right, xloc=xloc.bar_time)
    ray_drawn := true

price2 = price1_val * 1.05
price3 = price1_val * 0.95

plot(price2, color=color.green)
plot(price3, color=color.red)