Darts

Darts

Easy

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.


Source

Inspired by an exercise created by a professor Della Paolera in Argentina
Last updated 23 November 2022
Edit via GitHub The link opens in a new window or tab
Common Lisp Exercism

Ready to start Darts?

Sign up to Exercism to learn and master Common Lisp with 27 concepts, 83 exercises, and real human mentoring, all for free.