& Lesson 8: A random lesson.

& So far, everything we've done is deterministic.
& Let's let the computer make some decisions.

& We're going to introduce a few things here:
& * colors
& * random
& * dicts

& our friend box!
fn box! (size) -> repeat 4 { fd! (size); rt! (0.25) }

doc! (pencolor!)
print! ("These are Ludus's built-in colors: ", colors)

pencolor! (colors :maroon)
&          ^^^^^^          This is a dict.
&                 ^^^^^^^  This is a keyword.
& We use <dict> <keyword> to get values out of dicts.
& Dict is short for "dictionary."
& pencolor! is also pc!

& Drawing some colourful boxes:
box! (100)
rt! (0.25)
pc! (colors :purple)
box! (100)
rt! (0.25)
pc! (colors :olive)
box! (100)
rt! (0.25)
pc! (colors :teal)
box! (100)

& We can also get a random colour using a handy-dandy function: random
repeat 4 {
	pc! (random (color))
	box! (75)
	rt! (0.25)
}

& And we can also set the background to a random colour:
background! (random (color))