Fixed conflicts merging space-age

config.json

@@ -68,7 +68,6 @@
         "difficulty": 1
       },
       {
-<<<<<<< HEAD
         "slug": "collatz-conjecture",
         "name": "Collatz Conjecture",
         "uuid": "d87d43a6-91c0-4a60-a54e-86b86050436b",
@@ -107,6 +106,14 @@
         "practices": [],
         "prerequisites": [],
         "difficulty": 1
+      },
+      {
+        "slug": "space-age",
+        "name": "Space Age",
+        "uuid": "2e4aeee6-e53d-409f-9eaa-67ca4daabc55",
+        "practices": [],
+        "prerequisites": [],
+        "difficulty": 1
       }
     ]
   },

exercises/practice/space-age/.docs/instructions.md

@@ -0,0 +1,28 @@
+# Instructions
+
+Given an age in seconds, calculate how old someone would be on a planet in our Solar System.
+
+One Earth year equals 365.25 Earth days, or 31,557,600 seconds.
+If you were told someone was 1,000,000,000 seconds old, their age would be 31.69 Earth-years.
+
+For the other planets, you have to account for their orbital period in Earth Years:
+
+| Planet  | Orbital period in Earth Years |
+| ------- | ----------------------------- |
+| Mercury | 0.2408467                     |
+| Venus   | 0.61519726                    |
+| Earth   | 1.0                           |
+| Mars    | 1.8808158                     |
+| Jupiter | 11.862615                     |
+| Saturn  | 29.447498                     |
+| Uranus  | 84.016846                     |
+| Neptune | 164.79132                     |
+
+~~~~exercism/note
+The actual length of one complete orbit of the Earth around the sun is closer to 365.256 days (1 sidereal year).
+The Gregorian calendar has, on average, 365.2425 days.
+While not entirely accurate, 365.25 is the value used in this exercise.
+See [Year on Wikipedia][year] for more ways to measure a year.
+
+[year]: https://en.wikipedia.org/wiki/Year#Summary
+~~~~

exercises/practice/space-age/.docs/introduction.md

@@ -0,0 +1,20 @@
+# Introduction
+
+The year is 2525 and you've just embarked on a journey to visit all planets in the Solar System (Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune).
+The first stop is Mercury, where customs require you to fill out a form (bureaucracy is apparently _not_ Earth-specific).
+As you hand over the form to the customs officer, they scrutinize it and frown.
+"Do you _really_ expect me to believe you're just 50 years old?
+You must be closer to 200 years old!"
+
+Amused, you wait for the customs officer to start laughing, but they appear to be dead serious.
+You realize that you've entered your age in _Earth years_, but the officer expected it in _Mercury years_!
+As Mercury's orbital period around the sun is significantly shorter than Earth, you're actually a lot older in Mercury years.
+After some quick calculations, you're able to provide your age in Mercury Years.
+The customs officer smiles, satisfied, and waves you through.
+You make a mental note to pre-calculate your planet-specific age _before_ future customs checks, to avoid such mix-ups.
+
+~~~~exercism/note
+If you're wondering why Pluto didn't make the cut, go watch [this YouTube video][pluto-video].
+
+[pluto-video]: https://www.youtube.com/watch?v=Z_2gbGXzFbs
+~~~~

exercises/practice/space-age/.meta/config.json

@@ -0,0 +1,19 @@
+{
+  "authors": [
+    "gvrooyen"
+  ],
+  "files": {
+    "solution": [
+      "space_age.odin"
+    ],
+    "test": [
+      "space_age_test.odin"
+    ],
+    "example": [
+      ".meta/space_age_example.odin"
+    ]
+  },
+  "blurb": "Given an age in seconds, calculate how old someone is in terms of a given planet's solar years.",
+  "source": "Partially inspired by Chapter 1 in Chris Pine's online Learn to Program tutorial.",
+  "source_url": "https://pine.fm/LearnToProgram/?Chapter=01"
+}

exercises/practice/space-age/.meta/space_age_example.odin

@@ -0,0 +1,29 @@
+package space_age
+
+Planet :: enum {
+	Mercury,
+	Venus,
+	Earth,
+	Mars,
+	Jupiter,
+	Saturn,
+	Uranus,
+	Neptune,
+}
+
+period := map[Planet]f64 {
+	.Mercury = 0.2408467,
+	.Venus   = 0.61519726,
+	.Earth   = 1.0,
+	.Mars    = 1.8808158,
+	.Jupiter = 11.862615,
+	.Saturn  = 29.447498,
+	.Uranus  = 84.016846,
+	.Neptune = 164.79132,
+}
+
+seconds_per_earth_year :: 31_557_600
+
+age :: proc(planet: Planet, seconds: int) -> f64 {
+	return f64(seconds) / seconds_per_earth_year / period[planet]
+}

exercises/practice/space-age/.meta/tests.toml

@@ -0,0 +1,37 @@
+# This is an auto-generated file.
+#
+# Regenerating this file via `configlet sync` will:
+# - Recreate every `description` key/value pair
+# - Recreate every `reimplements` key/value pair, where they exist in problem-specifications
+# - Remove any `include = true` key/value pair (an omitted `include` key implies inclusion)
+# - Preserve any other key/value pair
+#
+# As user-added comments (using the # character) will be removed when this file
+# is regenerated, comments can be added via a `comment` key.
+
+[84f609af-5a91-4d68-90a3-9e32d8a5cd34]
+description = "age on Earth"
+
+[ca20c4e9-6054-458c-9312-79679ffab40b]
+description = "age on Mercury"
+
+[502c6529-fd1b-41d3-8fab-65e03082b024]
+description = "age on Venus"
+
+[9ceadf5e-a0d5-4388-9d40-2c459227ceb8]
+description = "age on Mars"
+
+[42927dc3-fe5e-4f76-a5b5-f737fc19bcde]
+description = "age on Jupiter"
+
+[8469b332-7837-4ada-b27c-00ee043ebcad]
+description = "age on Saturn"
+
+[999354c1-76f8-4bb5-a672-f317b6436743]
+description = "age on Uranus"
+
+[80096d30-a0d4-4449-903e-a381178355d8]
+description = "age on Neptune"
+
+[57b96e2a-1178-40b7-b34d-f3c9c34e4bf4]
+description = "invalid planet causes error"

exercises/practice/space-age/space_age.odin

@@ -0,0 +1,16 @@
+package space_age
+
+Planet :: enum {
+	Mercury,
+	Venus,
+	Earth,
+	Mars,
+	Jupiter,
+	Saturn,
+	Uranus,
+	Neptune,
+}
+
+age :: proc(planet: Planet, seconds: int) -> f64 {
+	#panic("Please implement the `age` procedure.")
+}

exercises/practice/space-age/space_age_test.odin

@@ -0,0 +1,62 @@
+/* These are the unit tests for the exercise. Only the first one is enabled to start with. You can
+ * enable the other tests by uncommenting the `@(test)` attribute of the test procedure. Your
+ * solution should pass all tests before it is ready for submission.
+ */
+
+package space_age
+
+import "base:intrinsics"
+import "core:log"
+import "core:testing"
+
+expect_almost :: proc(
+	value, expected: $T,
+	tolerance := 0.01,
+	loc := #caller_location,
+) -> bool where intrinsics.type_is_float(T) {
+	ok := abs(expected - value) <= tolerance
+	if !ok {
+		log.errorf("expected %.2f, got %.2f", expected, value, location = loc)
+	}
+	return ok
+}
+
+@(test)
+test_age_on_earth :: proc(t: ^testing.T) {
+	expect_almost(age(.Earth, 1_000_000_000), 31.69)
+}
+
+// @(test)
+test_age_on_mercury :: proc(t: ^testing.T) {
+	expect_almost(age(.Mercury, 2_134_835_688), 280.88)
+}
+
+// @(test)
+test_age_on_venus :: proc(t: ^testing.T) {
+	expect_almost(age(.Venus, 189_839_836), 9.78)
+}
+
+// @(test)
+test_age_on_mars :: proc(t: ^testing.T) {
+	expect_almost(age(.Mars, 2_129_871_239), 35.88)
+}
+
+// @(test)
+test_age_on_jupiter :: proc(t: ^testing.T) {
+	expect_almost(age(.Jupiter, 901_876_382), 2.41)
+}
+
+// @(test)
+test_age_on_saturn :: proc(t: ^testing.T) {
+	expect_almost(age(.Saturn, 2_000_000_000), 2.15)
+}
+
+// @(test)
+test_age_on_uranus :: proc(t: ^testing.T) {
+	expect_almost(age(.Uranus, 1_210_123_456), 0.46)
+}
+
+// @(test)
+test_age_on_neptune :: proc(t: ^testing.T) {
+	expect_almost(age(.Neptune, 1_821_023_456), 0.35)
+}