25 lines
883 B
Plaintext
25 lines
883 B
Plaintext
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& Lesson 4: Making functions and naming them
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& It's tedious to type out the whole `repeat 4 {...}` scene.
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& Let's give this set of commands a name:
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fn box! () -> repeat 4 {
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forward! (100)
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right! (0.25)
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}
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& fn box! () -> repeat 4 {
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& fn `fn` is a special form
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& It creates a function.
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& box! `box!` is the name of our new function
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& Note that it ends with `!`: by convention,
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& all commands end with a "bang" like this.
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& () `box!` doesn't take arguments.
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& This represents an empty list of args.
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& -> This arrow is basically punctuation.
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& repeat 4 { We already know what this is.
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& Run this code. What happens?
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& If you want to actually draw a box, what does that look like?
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