exercism/elixir/darts

Darts

Welcome to Darts on Exercism's Elixir Track. If you need help running the tests or submitting your code, check out HELP.md. If you get stuck on the exercise, check out HINTS.md, but try and solve it without using those first :)

Instructions

Write a function that returns the earned points in a single toss of a Darts game.

Darts is a game where players throw darts at a target.

In our particular instance of the game, the target rewards 4 different amounts of points, depending on where the dart lands:

• If the dart lands outside the target, player earns no points (0 points).
• If the dart lands in the outer circle of the target, player earns 1 point.
• If the dart lands in the middle circle of the target, player earns 5 points.
• If the dart lands in the inner circle of the target, player earns 10 points.

The outer circle has a radius of 10 units (this is equivalent to the total radius for the entire target), the middle circle a radius of 5 units, and the inner circle a radius of 1. Of course, they are all centered at the same point — that is, the circles are concentric defined by the coordinates (0, 0).

Write a function that given a point in the target (defined by its Cartesian coordinates x and y, where x and y are real), returns the correct amount earned by a dart landing at that point.

Credit

The scoreboard image was created by habere-et-dispertire using Inkscape.

Source

Created by

• @jiegillet

Contributed to by

• @angelikatyborska

Based on

Inspired by an exercise created by a professor Della Paolera in Argentina