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29 changes: 29 additions & 0 deletions darts/.exercism/config.json
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{
"authors": [
"GascaK"
],
"contributors": [
"alexpjohnson",
"AnAccountForReportingBugs",
"BethanyG",
"cmccandless",
"Dog",
"Grociu",
"tqa236",
"xitanggg",
"yawpitch"
],
"files": {
"solution": [
"darts.py"
],
"test": [
"darts_test.py"
],
"example": [
".meta/example.py"
]
},
"blurb": "Calculate the points scored in a single toss of a Darts game.",
"source": "Inspired by an exercise created by a professor Della Paolera in Argentina"
}
1 change: 1 addition & 0 deletions darts/.exercism/metadata.json
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{"track":"python","exercise":"darts","id":"d4b5c772cdca44b58cdc7ff76ffe7b00","url":"https://exercism.org/tracks/python/exercises/darts","handle":"myFirstCode","is_requester":true,"auto_approve":false}
130 changes: 130 additions & 0 deletions darts/HELP.md
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# Help

## Running the tests

We use [pytest][pytest: Getting Started Guide] as our website test runner.
You will need to install `pytest` on your development machine if you want to run tests for the Python track locally.
You should also install the following `pytest` plugins:

- [pytest-cache][pytest-cache]
- [pytest-subtests][pytest-subtests]

Extended information can be found in our website [Python testing guide][Python track tests page].


### Running Tests

To run the included tests, navigate to the folder where the exercise is stored using `cd` in your terminal (_replace `{exercise-folder-location}` below with your path_).
Test files usually end in `_test.py`, and are the same tests that run on the website when a solution is uploaded.

Linux/MacOS
```bash
$ cd {path/to/exercise-folder-location}
```

Windows
```powershell
PS C:\Users\foobar> cd {path\to\exercise-folder-location}
```

<br>

Next, run the `pytest` command in your terminal, replacing `{exercise_test.py}` with the name of the test file:

Linux/MacOS
```bash
$ python3 -m pytest -o markers=task {exercise_test.py}
==================== 7 passed in 0.08s ====================
```

Windows
```powershell
PS C:\Users\foobar> py -m pytest -o markers=task {exercise_test.py}
==================== 7 passed in 0.08s ====================
```


### Common options
- `-o` : override default `pytest.ini` (_you can use this to avoid marker warnings_)
- `-v` : enable verbose output.
- `-x` : stop running tests on first failure.
- `--ff` : run failures from previous test before running other test cases.

For additional options, use `python3 -m pytest -h` or `py -m pytest -h`.


### Fixing warnings

If you do not use `pytest -o markers=task` when invoking `pytest`, you might receive a `PytestUnknownMarkWarning` for tests that use our new syntax:

```bash
PytestUnknownMarkWarning: Unknown pytest.mark.task - is this a typo? You can register custom marks to avoid this warning - for details, see https://docs.pytest.org/en/stable/mark.html
```

To avoid typing `pytest -o markers=task` for every test you run, you can use a `pytest.ini` configuration file.
We have made one that can be downloaded from the top level of the Python track directory: [pytest.ini][pytest.ini].

You can also create your own `pytest.ini` file with the following content:

```ini
[pytest]
markers =
task: A concept exercise task.
```

Placing the `pytest.ini` file in the _root_ or _working_ directory for your Python track exercises will register the marks and stop the warnings.
More information on pytest marks can be found in the `pytest` documentation on [marking test functions][pytest: marking test functions with attributes] and the `pytest` documentation on [working with custom markers][pytest: working with custom markers].

Information on customizing pytest configurations can be found in the `pytest` documentation on [configuration file formats][pytest: configuration file formats].


### Extending your IDE or Code Editor

Many IDEs and code editors have built-in support for using `pytest` and other code quality tools.
Some community-sourced options can be found on our [Python track tools page][Python track tools page].

[Pytest: Getting Started Guide]: https://docs.pytest.org/en/latest/getting-started.html
[Python track tools page]: https://exercism.org/docs/tracks/python/tools
[Python track tests page]: https://exercism.org/docs/tracks/python/tests
[pytest-cache]:http://pythonhosted.org/pytest-cache/
[pytest-subtests]:https://github.com/pytest-dev/pytest-subtests
[pytest.ini]: https://github.com/exercism/python/blob/main/pytest.ini
[pytest: configuration file formats]: https://docs.pytest.org/en/6.2.x/customize.html#configuration-file-formats
[pytest: marking test functions with attributes]: https://docs.pytest.org/en/6.2.x/mark.html#raising-errors-on-unknown-marks
[pytest: working with custom markers]: https://docs.pytest.org/en/6.2.x/example/markers.html#working-with-custom-markers

## Submitting your solution

You can submit your solution using the `exercism submit darts.py` command.
This command will upload your solution to the Exercism website and print the solution page's URL.

It's possible to submit an incomplete solution which allows you to:

- See how others have completed the exercise
- Request help from a mentor

## Need to get help?

If you'd like help solving the exercise, check the following pages:

- The [Python track's documentation](https://exercism.org/docs/tracks/python)
- The [Python track's programming category on the forum](https://forum.exercism.org/c/programming/python)
- [Exercism's programming category on the forum](https://forum.exercism.org/c/programming/5)
- The [Frequently Asked Questions](https://exercism.org/docs/using/faqs)

Should those resources not suffice, you could submit your (incomplete) solution to request mentoring.

Below are some resources for getting help if you run into trouble:

- [The PSF](https://www.python.org) hosts Python downloads, documentation, and community resources.
- [The Exercism Community on Discord](https://exercism.org/r/discord)
- [Python Community on Discord](https://pythondiscord.com/) is a very helpful and active community.
- [/r/learnpython/](https://www.reddit.com/r/learnpython/) is a subreddit designed for Python learners.
- [#python on Libera.chat](https://www.python.org/community/irc/) this is where the core developers for the language hang out and get work done.
- [Python Community Forums](https://discuss.python.org/)
- [Free Code Camp Community Forums](https://forum.freecodecamp.org/)
- [CodeNewbie Community Help Tag](https://community.codenewbie.org/t/help)
- [Pythontutor](http://pythontutor.com/) for stepping through small code snippets visually.

Additionally, [StackOverflow](http://stackoverflow.com/questions/tagged/python) is a good spot to search for your problem/question to see if it has been answered already.
If not - you can always [ask](https://stackoverflow.com/help/how-to-ask) or [answer](https://stackoverflow.com/help/how-to-answer) someone else's question.
20 changes: 20 additions & 0 deletions darts/HINTS.md
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# Hints

## General

- This challenge is all about calculating if a point falls _on, in, or outside_ a given circle.
- There are two different ways of calculating if a point falls on, in, or outside a circle.
- This _Stack Overflow_ Post: [Equation for Testing if a Point is Inside a Circle][point-circle-equation] outlines one method.
- This _DoubleRoot_ post [Position of a point relative to a circle][point-to-circle] outlines a different one.
- This _Math is Fun_ post covers a more general [Distance Between 2 Points][distance-between-two-points] calculation.
- Because the dart board is a set of _concentric_ circles, the order in which you calculate points could change the answer significantly.
You should pay attention to which direction your calculations "move" in.
- Remember that this exercise has many potential solutions and many paths you can take along the way.
No path is manifestly "better" than another, although a particular path may be more interesting or better suited to what you want to learn or explore right now.
- Some paths may trade speed for clarity.
Others might take up more memory but be more scalable or maintainable.
- We encourage you to try out more than one programming strategy to see what happens.

[point-circle-equation]: https://stackoverflow.com/questions/481144/equation-for-testing-if-a-point-is-inside-a-circle
[point-to-circle]: https://doubleroot.in/lessons/circle/position-of-a-point/
[distance-between-two-points]: https://www.mathsisfun.com/algebra/distance-2-points.html
59 changes: 59 additions & 0 deletions darts/README.md
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# Darts

Welcome to Darts on Exercism's Python 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

Calculate the points scored in a single toss of a Darts game.

[Darts][darts] is a game where players throw darts at a [target][darts-target].

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

![Our dart scoreboard with values from a complete miss to a bullseye](https://assets.exercism.org/images/exercises/darts/darts-scoreboard.svg)

- 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).

Given a point in the target (defined by its [Cartesian coordinates][cartesian-coordinates] `x` and `y`, where `x` and `y` are [real][real-numbers]), calculate the correct score earned by a dart landing at that point.

## Credit

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

[darts]: https://en.wikipedia.org/wiki/Darts
[darts-target]: https://en.wikipedia.org/wiki/Darts#/media/File:Darts_in_a_dartboard.jpg
[concentric]: https://mathworld.wolfram.com/ConcentricCircles.html
[cartesian-coordinates]: https://www.mathsisfun.com/data/cartesian-coordinates.html
[real-numbers]: https://www.mathsisfun.com/numbers/real-numbers.html
[habere-et-dispertire]: https://exercism.org/profiles/habere-et-dispertire
[inkscape]: https://en.wikipedia.org/wiki/Inkscape

## Source

### Created by

- @GascaK

### Contributed to by

- @alexpjohnson
- @AnAccountForReportingBugs
- @BethanyG
- @cmccandless
- @Dog
- @Grociu
- @tqa236
- @xitanggg
- @yawpitch

### Based on

Inspired by an exercise created by a professor Della Paolera in Argentina
19 changes: 19 additions & 0 deletions darts/darts.py
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"""Darts is a game where players throw darts at a target."""


def score(x: int, y: int) -> int:
"""
Calculate the points scored in a single toss of a Darts game.

Given the x and y coordinates where a dart lands, returns the score
based on the distance from the center (0, 0):
- Inner circle (distance <= 1): 10 points
- Middle circle (distance <= 5): 5 points
- Outer circle (distance <= 10): 1 point
- Outside target (distance > 10): 0 points

:param x: The x-coordinate where the dart landed
:param y: The y-coordinate where the dart landed
:return: The points scored (0, 1, 5, or 10)
"""
pass
52 changes: 52 additions & 0 deletions darts/darts_test.py
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# pylint: disable=C0301

# These tests are auto-generated with test data from:
# https://github.com/exercism/problem-specifications/tree/main/exercises/darts/canonical-data.json
# File last updated on 2023-07-19

import unittest

from darts import (
score,
)


class DartsTest(unittest.TestCase):
def test_missed_target(self):
self.assertEqual(score(-9, 9), 0)

def test_on_the_outer_circle(self):
self.assertEqual(score(0, 10), 1)

def test_on_the_middle_circle(self):
self.assertEqual(score(-5, 0), 5)

def test_on_the_inner_circle(self):
self.assertEqual(score(0, -1), 10)

def test_exactly_on_center(self):
self.assertEqual(score(0, 0), 10)

def test_near_the_center(self):
self.assertEqual(score(-0.1, -0.1), 10)

def test_just_within_the_inner_circle(self):
self.assertEqual(score(0.7, 0.7), 10)

def test_just_outside_the_inner_circle(self):
self.assertEqual(score(0.8, -0.8), 5)

def test_just_within_the_middle_circle(self):
self.assertEqual(score(-3.5, 3.5), 5)

def test_just_outside_the_middle_circle(self):
self.assertEqual(score(-3.6, -3.6), 1)

def test_just_within_the_outer_circle(self):
self.assertEqual(score(-7.0, 7.0), 1)

def test_just_outside_the_outer_circle(self):
self.assertEqual(score(7.1, -7.1), 0)

def test_asymmetric_position_between_the_inner_and_middle_circles(self):
self.assertEqual(score(0.5, -4), 5)
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