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Add Yacht exercise to the Scala track (#789)
* test * done coding Signed-off-by: wangxiaoxuan273 <[email protected]> * Update exercises/practice/yacht/.meta/config.json Co-authored-by: Erik Schierboom <[email protected]> * Update exercises/practice/yacht/src/test/scala/YachtTest.scala Co-authored-by: Erik Schierboom <[email protected]> * added pending on tests Signed-off-by: wangxiaoxuan273 <[email protected]> * reran the configlet commands Signed-off-by: wangxiaoxuan273 <[email protected]> * changed implementation Signed-off-by: wangxiaoxuan273 <[email protected]> * added extra line to make github happy Signed-off-by: wangxiaoxuan273 <[email protected]> * fixed my class name error in Example.scala Signed-off-by: wangxiaoxuan273 <[email protected]> --------- Signed-off-by: wangxiaoxuan273 <[email protected]> Co-authored-by: Erik Schierboom <[email protected]>
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‎config.json‎

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"transforming"
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]
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},
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{
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"slug": "yacht",
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"name": "Yacht",
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"uuid": "d4b60464-31e3-47f9-a99d-08a6e3a255b6",
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"practices": [],
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"prerequisites": [],
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"difficulty": 5,
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"topics": [
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"pattern_matching"
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]
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},
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{
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"slug": "sgf-parsing",
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"name": "SGF Parsing",

‎exercises/practice/yacht/.docs/instructions.md‎

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# Instructions
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The dice game [Yacht][yacht] is from the same family as Poker Dice, Generala and particularly Yahtzee, of which it is a precursor.
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In the game, five dice are rolled and the result can be entered in any of twelve categories.
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The score of a throw of the dice depends on category chosen.
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## Scores in Yacht
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| Category | Score | Description | Example |
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| -------- | ----- | ----------- | ------- |
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| Ones | 1 × number of ones | Any combination | 1 1 1 4 5 scores 3 |
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| Twos | 2 × number of twos | Any combination | 2 2 3 4 5 scores 4 |
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| Threes | 3 × number of threes | Any combination | 3 3 3 3 3 scores 15 |
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| Fours | 4 × number of fours | Any combination | 1 2 3 3 5 scores 0 |
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| Fives | 5 × number of fives| Any combination | 5 1 5 2 5 scores 15 |
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| Sixes | 6 × number of sixes | Any combination | 2 3 4 5 6 scores 6 |
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| Full House | Total of the dice | Three of one number and two of another | 3 3 3 5 5 scores 19 |
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| Four of a Kind | Total of the four dice | At least four dice showing the same face | 4 4 4 4 6 scores 16 |
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| Little Straight | 30 points | 1-2-3-4-5 | 1 2 3 4 5 scores 30 |
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| Big Straight | 30 points | 2-3-4-5-6 | 2 3 4 5 6 scores 30 |
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| Choice | Sum of the dice | Any combination | 2 3 3 4 6 scores 18 |
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| Yacht | 50 points | All five dice showing the same face | 4 4 4 4 4 scores 50 |
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If the dice do not satisfy the requirements of a category, the score is zero.
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If, for example, *Four Of A Kind* is entered in the *Yacht* category, zero points are scored.
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A *Yacht* scores zero if entered in the *Full House* category.
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## Task
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Given a list of values for five dice and a category, your solution should return the score of the dice for that category.
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If the dice do not satisfy the requirements of the category your solution should return 0.
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You can assume that five values will always be presented, and the value of each will be between one and six inclusively.
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You should not assume that the dice are ordered.
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[yacht]: https://en.wikipedia.org/wiki/Yacht_(dice_game)

‎exercises/practice/yacht/.meta/Example.scala‎

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object Yacht {
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def yacht(dices: List[Int]): Int =
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if (dices.toSet.size == 1) 50 else 0
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def diceFrequencies(dices: List[Int]): Vector[Int] =
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(1 to 6).map(i => dices.count(_ == i)).toVector
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def appearances(dices: List[Int], diceValue: Int): Int =
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diceFrequencies(dices)(diceValue - 1)
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def getSumOfDices(dices: List[Int]): Int =
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dices.sum
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def fourOfKind(dices: List[Int]): Int = {
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val counterArray = diceFrequencies(dices)
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val scores = (0 to 5).flatMap(i =>
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if (counterArray(i) >= 4) Some((i + 1) * 4) else None
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)
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if (scores.isEmpty) 0 else scores.head
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}
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def littleStraight(dices: List[Int]): Int =
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if (dices.sorted == List(1, 2, 3, 4, 5)) 30 else 0
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def bigStraight(dices: List[Int]): Int =
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if (dices.sorted == List(2, 3, 4, 5, 6)) 30 else 0
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def fullHouse(dices: List[Int]): Int = {
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val counterArray = diceFrequencies(dices)
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if (counterArray.contains(2) && counterArray.contains(3))
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dices.sum
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else
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0
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}
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def score(dices: List[Int], category: String): Int = category match {
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case "yacht" => yacht(dices)
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case "ones" => appearances(dices, 1)
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case "twos" => appearances(dices, 2) * 2
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case "threes" => appearances(dices, 3) * 3
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case "fours" => appearances(dices, 4) * 4
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case "fives" => appearances(dices, 5) * 5
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case "sixes" => appearances(dices, 6) * 6
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case "full house" => fullHouse(dices)
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case "four of a kind" => fourOfKind(dices)
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case "little straight" => littleStraight(dices)
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case "big straight" => bigStraight(dices)
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case "choice" => getSumOfDices(dices)
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case _ => 0
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}
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}

‎exercises/practice/yacht/.meta/config.json‎

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{
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"authors": [
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"wangxiaoxuan273"
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],
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"files": {
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"solution": [
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"src/main/scala/Yacht.scala"
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],
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"test": [
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"src/test/scala/YachtTest.scala"
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],
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"example": [
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".meta/Example.scala"
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],
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"invalidator": [
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"build.sbt"
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]
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},
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"blurb": "Score a single throw of dice in the game Yacht.",
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"source": "James Kilfiger, using wikipedia",
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"source_url": "https://en.wikipedia.org/wiki/Yacht_(dice_game)"
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}

‎exercises/practice/yacht/.meta/tests.toml‎

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# This is an auto-generated file.
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#
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# Regenerating this file via `configlet sync` will:
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# - Recreate every `description` key/value pair
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# - Recreate every `reimplements` key/value pair, where they exist in problem-specifications
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# - Remove any `include = true` key/value pair (an omitted `include` key implies inclusion)
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# - Preserve any other key/value pair
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#
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# As user-added comments (using the # character) will be removed when this file
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# is regenerated, comments can be added via a `comment` key.
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[3060e4a5-4063-4deb-a380-a630b43a84b6]
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description = "Yacht"
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[15026df2-f567-482f-b4d5-5297d57769d9]
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description = "Not Yacht"
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[36b6af0c-ca06-4666-97de-5d31213957a4]
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description = "Ones"
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[023a07c8-6c6e-44d0-bc17-efc5e1b8205a]
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description = "Ones, out of order"
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[7189afac-cccd-4a74-8182-1cb1f374e496]
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description = "No ones"
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[793c4292-dd14-49c4-9707-6d9c56cee725]
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description = "Twos"
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[dc41bceb-d0c5-4634-a734-c01b4233a0c6]
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description = "Fours"
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[f6125417-5c8a-4bca-bc5b-b4b76d0d28c8]
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description = "Yacht counted as threes"
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[464fc809-96ed-46e4-acb8-d44e302e9726]
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description = "Yacht of 3s counted as fives"
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[d054227f-3a71-4565-a684-5c7e621ec1e9]
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description = "Fives"
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[e8a036e0-9d21-443a-8b5f-e15a9e19a761]
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description = "Sixes"
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[51cb26db-6b24-49af-a9ff-12f53b252eea]
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description = "Full house two small, three big"
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[1822ca9d-f235-4447-b430-2e8cfc448f0c]
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description = "Full house three small, two big"
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[b208a3fc-db2e-4363-a936-9e9a71e69c07]
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description = "Two pair is not a full house"
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[b90209c3-5956-445b-8a0b-0ac8b906b1c2]
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description = "Four of a kind is not a full house"
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[32a3f4ee-9142-4edf-ba70-6c0f96eb4b0c]
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description = "Yacht is not a full house"
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[b286084d-0568-4460-844a-ba79d71d79c6]
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description = "Four of a Kind"
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[f25c0c90-5397-4732-9779-b1e9b5f612ca]
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description = "Yacht can be scored as Four of a Kind"
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[9f8ef4f0-72bb-401a-a871-cbad39c9cb08]
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description = "Full house is not Four of a Kind"
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[b4743c82-1eb8-4a65-98f7-33ad126905cd]
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description = "Little Straight"
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[7ac08422-41bf-459c-8187-a38a12d080bc]
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description = "Little Straight as Big Straight"
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[97bde8f7-9058-43ea-9de7-0bc3ed6d3002]
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description = "Four in order but not a little straight"
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[cef35ff9-9c5e-4fd2-ae95-6e4af5e95a99]
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description = "No pairs but not a little straight"
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[fd785ad2-c060-4e45-81c6-ea2bbb781b9d]
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description = "Minimum is 1, maximum is 5, but not a little straight"
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[35bd74a6-5cf6-431a-97a3-4f713663f467]
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description = "Big Straight"
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[87c67e1e-3e87-4f3a-a9b1-62927822b250]
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description = "Big Straight as little straight"
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[c1fa0a3a-40ba-4153-a42d-32bc34d2521e]
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description = "No pairs but not a big straight"
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[207e7300-5d10-43e5-afdd-213e3ac8827d]
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description = "Choice"
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[b524c0cf-32d2-4b40-8fb3-be3500f3f135]
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description = "Yacht as choice"

‎exercises/practice/yacht/build.sbt‎

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scalaVersion := "2.13.6"
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libraryDependencies += "org.scalatest" %% "scalatest" % "3.2.10" % "test"

‎exercises/practice/yacht/src/main/scala/Yacht.scala‎

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object Yacht {
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def score(dices: List[Int], category: String): Int = ???
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}

‎exercises/practice/yacht/src/test/scala/YachtTest.scala‎

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import org.scalatest.funsuite.AnyFunSuite
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import org.scalatest.matchers.should.Matchers
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class YachtTests extends AnyFunSuite with Matchers {
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test("Yacht") {
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Yacht.score(List(5, 5, 5, 5, 5), "yacht") shouldEqual 50
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}
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test("Not Yacht") {
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pending
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Yacht.score(List(1, 3, 3, 2, 5), "yacht") shouldEqual 0
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}
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test("Ones") {
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pending
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Yacht.score(List(1, 1, 1, 3, 5), "ones") shouldEqual 3
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}
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test("Ones, out of order") {
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pending
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Yacht.score(List(3, 1, 1, 5, 1), "ones") shouldEqual 3
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}
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test("No ones") {
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pending
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Yacht.score(List(4, 3, 6, 5, 5), "ones") shouldEqual 0
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}
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test("Twos") {
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pending
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Yacht.score(List(2, 3, 4, 5, 6), "twos") shouldEqual 2
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}
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test("Fours") {
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pending
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Yacht.score(List(1, 4, 1, 4, 1), "fours") shouldEqual 8
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}
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test("Yacht counted as threes") {
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pending
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Yacht.score(List(3, 3, 3, 3, 3), "threes") shouldEqual 15
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}
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test("Yacht of 3s counted as fives") {
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pending
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Yacht.score(List(3, 3, 3, 3, 3), "fives") shouldEqual 0
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}
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test("Fives") {
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pending
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Yacht.score(List(1, 5, 3, 5, 3), "fives") shouldEqual 10
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}
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test("Sixes") {
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pending
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Yacht.score(List(2, 3, 4, 5, 6), "sixes") shouldEqual 6
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}
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test("Full house two small, three big") {
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pending
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Yacht.score(List(2, 2, 4, 4, 4), "full house") shouldEqual 16
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}
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test("Full house three small, two big") {
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pending
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Yacht.score(List(5, 3, 3, 5, 3), "full house") shouldEqual 19
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}
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test("Two pair is not a full house") {
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pending
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Yacht.score(List(2, 2, 4, 4, 5), "full house") shouldEqual 0
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}
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test("Four of a kind is not a full house") {
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pending
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Yacht.score(List(1, 4, 4, 4, 4), "full house") shouldEqual 0
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}
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test("Yacht is not a full house") {
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pending
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Yacht.score(List(2, 2, 2, 2, 2), "full house") shouldEqual 0
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}
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test("Four of a Kind") {
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pending
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Yacht.score(List(6, 6, 4, 6, 6), "four of a kind") shouldEqual 24
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}
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test("Yacht can be scored as Four of a Kind") {
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pending
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Yacht.score(List(3, 3, 3, 3, 3), "four of a kind") shouldEqual 12
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}
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test("Full house is not Four of a Kind") {
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pending
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Yacht.score(List(3, 3, 3, 5, 5), "four of a kind") shouldEqual 0
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}
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test("Little Straight") {
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Yacht.score(List(3, 5, 4, 1, 2), "little straight") shouldEqual 30
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}
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test("Little Straight as Big Straight") {
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pending
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Yacht.score(List(1, 2, 3, 4, 5), "big straight") shouldEqual 0
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}
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test("Four in order but not a little straight") {
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pending
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Yacht.score(List(1, 1, 2, 3, 4), "little straight") shouldEqual 0
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}
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test("No pairs but not a little straight") {
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pending
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Yacht.score(List(1, 2, 3, 4, 6), "little straight") shouldEqual 0
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}
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test("Minimum is 1, maximum is 5, but not a little straight") {
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pending
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Yacht.score(List(1, 1, 3, 4, 5), "little straight") shouldEqual 0
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}
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test("Big Straight") {
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pending
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Yacht.score(List(4, 6, 2, 5, 3), "big straight") shouldEqual 30
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}
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test("Big Straight as little straight") {
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pending
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Yacht.score(List(6, 5, 4, 3, 2), "little straight") shouldEqual 0
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}
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test("No pairs but not a big straight") {
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pending
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Yacht.score(List(6, 5, 4, 3, 1), "big straight") shouldEqual 0
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}
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test("Choice") {
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pending
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Yacht.score(List(3, 3, 5, 6, 6), "choice") shouldEqual 23
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}
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test("Yacht as choice") {
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pending
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Yacht.score(List(2, 2, 2, 2, 2), "choice") shouldEqual 10
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}
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}

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