[all-your-base] Add new practice exercise

config.json

@@ -406,6 +406,14 @@
         "prerequisites": [],
         "difficulty": 4
       },
+      {
+        "slug": "all-your-base",
+        "name": "All Your Base",
+        "uuid": "db7caf7b-a9db-452d-830c-7840f6aa03fc",
+        "practices": [],
+        "prerequisites": [],
+        "difficulty": 5
+      },
       {
         "slug": "camicia",
         "name": "Camicia",

exercises/practice/all-your-base/.docs/instructions.md

@@ -0,0 +1,28 @@
+# Instructions
+
+Convert a sequence of digits in one base, representing a number, into a sequence of digits in another base, representing the same number.
+
+~~~~exercism/note
+Try to implement the conversion yourself.
+Do not use something else to perform the conversion for you.
+~~~~
+
+## About [Positional Notation][positional-notation]
+
+In positional notation, a number in base **b** can be understood as a linear combination of powers of **b**.
+
+The number 42, _in base 10_, means:
+
+`(4 × 10¹) + (2 × 10⁰)`
+
+The number 101010, _in base 2_, means:
+
+`(1 × 2⁵) + (0 × 2⁴) + (1 × 2³) + (0 × 2²) + (1 × 2¹) + (0 × 2⁰)`
+
+The number 1120, _in base 3_, means:
+
+`(1 × 3³) + (1 × 3²) + (2 × 3¹) + (0 × 3⁰)`
+
+_Yes. Those three numbers above are exactly the same. Congratulations!_
+
+[positional-notation]: https://en.wikipedia.org/wiki/Positional_notation

exercises/practice/all-your-base/.docs/introduction.md

@@ -0,0 +1,8 @@
+# Introduction
+
+You've just been hired as professor of mathematics.
+Your first week went well, but something is off in your second week.
+The problem is that every answer given by your students is wrong!
+Luckily, your math skills have allowed you to identify the problem: the student answers _are_ correct, but they're all in base 2 (binary)!
+Amazingly, it turns out that each week, the students use a different base.
+To help you quickly verify the student answers, you'll be building a tool to translate between bases.

exercises/practice/all-your-base/.meta/config.json

@@ -0,0 +1,20 @@
+{
+  "authors": [
+    "IsaacG"
+  ],
+  "files": {
+    "solution": [
+      "all_your_base.gd"
+    ],
+    "test": [
+      "all_your_base_test.gd",
+      "run_tests",
+      "lib/test_runner.gd",
+      "project.godot"
+    ],
+    "example": [
+      ".meta/example.gd"
+    ]
+  },
+  "blurb": "Convert a number, represented as a sequence of digits in one base, to any other base."
+}

exercises/practice/all-your-base/.meta/example.gd

@@ -0,0 +1,19 @@
+func rebase(input_base, digits, output_base):
+	if input_base < 2 or output_base < 2:
+		return null
+
+	var value = 0
+	for digit in digits:
+		if digit < 0 or digit >= input_base:
+			return null
+		value = value * input_base + digit
+
+	if value == 0:
+		return [0]
+
+	var rebased = []
+	while value > 0:
+		rebased.append(value % output_base)
+		value /= output_base
+	rebased.reverse()
+	return rebased

exercises/practice/all-your-base/.meta/template.j2

@@ -0,0 +1,12 @@
+{% for case in cases %}
+func test_{{ case.func_name }}(solution_script):
+	var got = solution_script.{{ case.property | camel_to_snake }}({{ case.input.inputBase | togdscript }}, {{ case.input.digits | togdscript }}, {{ case.input.outputBase | togdscript }})
+{%- if not case.expect_error %}
+	var want = {{ case.expected | togdscript }}
+{%- else %}
+	var want = null
+{%- endif %}
+	return [got, want]
+
+{% endfor %}
+

exercises/practice/all-your-base/.meta/tests.toml

@@ -0,0 +1,73 @@
+# 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.
+
+[5ce422f9-7a4b-4f44-ad29-49c67cb32d2c]
+description = "single bit one to decimal"
+
+[0cc3fea8-bb79-46ac-a2ab-5a2c93051033]
+description = "binary to single decimal"
+
+[f12db0f9-0d3d-42c2-b3ba-e38cb375a2b8]
+description = "single decimal to binary"
+
+[2c45cf54-6da3-4748-9733-5a3c765d925b]
+description = "binary to multiple decimal"
+
+[65ddb8b4-8899-4fcc-8618-181b2cf0002d]
+description = "decimal to binary"
+
+[8d418419-02a7-4824-8b7a-352d33c6987e]
+description = "trinary to hexadecimal"
+
+[d3901c80-8190-41b9-bd86-38d988efa956]
+description = "hexadecimal to trinary"
+
+[5d42f85e-21ad-41bd-b9be-a3e8e4258bbf]
+description = "15-bit integer"
+
+[d68788f7-66dd-43f8-a543-f15b6d233f83]
+description = "empty list"
+
+[5e27e8da-5862-4c5f-b2a9-26c0382b6be7]
+description = "single zero"
+
+[2e1c2573-77e4-4b9c-8517-6c56c5bcfdf2]
+description = "multiple zeros"
+
+[3530cd9f-8d6d-43f5-bc6e-b30b1db9629b]
+description = "leading zeros"
+
+[a6b476a1-1901-4f2a-92c4-4d91917ae023]
+description = "input base is one"
+
+[e21a693a-7a69-450b-b393-27415c26a016]
+description = "input base is zero"
+
+[54a23be5-d99e-41cc-88e0-a650ffe5fcc2]
+description = "input base is negative"
+
+[9eccf60c-dcc9-407b-95d8-c37b8be56bb6]
+description = "negative digit"
+
+[232fa4a5-e761-4939-ba0c-ed046cd0676a]
+description = "invalid positive digit"
+
+[14238f95-45da-41dc-95ce-18f860b30ad3]
+description = "output base is one"
+
+[73dac367-da5c-4a37-95fe-c87fad0a4047]
+description = "output base is zero"
+
+[13f81f42-ff53-4e24-89d9-37603a48ebd9]
+description = "output base is negative"
+
+[0e6c895d-8a5d-4868-a345-309d094cfe8d]
+description = "both bases are negative"

exercises/practice/all-your-base/all_your_base.gd

@@ -0,0 +1,2 @@
+func rebase(input_base, digits, output_base):
+	pass

exercises/practice/all-your-base/all_your_base_test.gd

@@ -0,0 +1,124 @@
+func test_single_bit_one_to_decimal(solution_script):
+	var got = solution_script.rebase(2, [1], 10)
+	var want = [1]
+	return [got, want]
+
+
+func test_binary_to_single_decimal(solution_script):
+	var got = solution_script.rebase(2, [1, 0, 1], 10)
+	var want = [5]
+	return [got, want]
+
+
+func test_single_decimal_to_binary(solution_script):
+	var got = solution_script.rebase(10, [5], 2)
+	var want = [1, 0, 1]
+	return [got, want]
+
+
+func test_binary_to_multiple_decimal(solution_script):
+	var got = solution_script.rebase(2, [1, 0, 1, 0, 1, 0], 10)
+	var want = [4, 2]
+	return [got, want]
+
+
+func test_decimal_to_binary(solution_script):
+	var got = solution_script.rebase(10, [4, 2], 2)
+	var want = [1, 0, 1, 0, 1, 0]
+	return [got, want]
+
+
+func test_trinary_to_hexadecimal(solution_script):
+	var got = solution_script.rebase(3, [1, 1, 2, 0], 16)
+	var want = [2, 10]
+	return [got, want]
+
+
+func test_hexadecimal_to_trinary(solution_script):
+	var got = solution_script.rebase(16, [2, 10], 3)
+	var want = [1, 1, 2, 0]
+	return [got, want]
+
+
+func test_15_bit_integer(solution_script):
+	var got = solution_script.rebase(97, [3, 46, 60], 73)
+	var want = [6, 10, 45]
+	return [got, want]
+
+
+func test_empty_list(solution_script):
+	var got = solution_script.rebase(2, [], 10)
+	var want = [0]
+	return [got, want]
+
+
+func test_single_zero(solution_script):
+	var got = solution_script.rebase(10, [0], 2)
+	var want = [0]
+	return [got, want]
+
+
+func test_multiple_zeros(solution_script):
+	var got = solution_script.rebase(10, [0, 0, 0], 2)
+	var want = [0]
+	return [got, want]
+
+
+func test_leading_zeros(solution_script):
+	var got = solution_script.rebase(7, [0, 6, 0], 10)
+	var want = [4, 2]
+	return [got, want]
+
+
+func test_input_base_is_one(solution_script):
+	var got = solution_script.rebase(1, [0], 10)
+	var want = null
+	return [got, want]
+
+
+func test_input_base_is_zero(solution_script):
+	var got = solution_script.rebase(0, [], 10)
+	var want = null
+	return [got, want]
+
+
+func test_input_base_is_negative(solution_script):
+	var got = solution_script.rebase(-2, [1], 10)
+	var want = null
+	return [got, want]
+
+
+func test_negative_digit(solution_script):
+	var got = solution_script.rebase(2, [1, -1, 1, 0, 1, 0], 10)
+	var want = null
+	return [got, want]
+
+
+func test_invalid_positive_digit(solution_script):
+	var got = solution_script.rebase(2, [1, 2, 1, 0, 1, 0], 10)
+	var want = null
+	return [got, want]
+
+
+func test_output_base_is_one(solution_script):
+	var got = solution_script.rebase(2, [1, 0, 1, 0, 1, 0], 1)
+	var want = null
+	return [got, want]
+
+
+func test_output_base_is_zero(solution_script):
+	var got = solution_script.rebase(10, [7], 0)
+	var want = null
+	return [got, want]
+
+
+func test_output_base_is_negative(solution_script):
+	var got = solution_script.rebase(2, [1], -7)
+	var want = null
+	return [got, want]
+
+
+func test_both_bases_are_negative(solution_script):
+	var got = solution_script.rebase(-2, [1], -7)
+	var want = null
+	return [got, want]