From 0f1e145b80813ae2331b7dac5ace0c589654ad2a Mon Sep 17 00:00:00 2001
From: tchojnacki <tomaszchojnacki2001@gmail.com>
Date: Thu, 11 Aug 2022 19:24:23 +0200
Subject: Move subproject to avoid IntelliJ module name issues

---
 aoc-2021-kotlin/src/Day02.kt | 56 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 56 insertions(+)
 create mode 100644 aoc-2021-kotlin/src/Day02.kt

(limited to 'aoc-2021-kotlin/src/Day02.kt')

diff --git a/aoc-2021-kotlin/src/Day02.kt b/aoc-2021-kotlin/src/Day02.kt
new file mode 100644
index 0000000..2eb085a
--- /dev/null
+++ b/aoc-2021-kotlin/src/Day02.kt
@@ -0,0 +1,56 @@
+object Day02 {
+    private fun dispatchCommands(commands: List<String>, action: (command: String, argument: Int) -> Unit) {
+        for (line in commands) {
+            val parts = line.split(" ")
+            val command = parts[0]
+            val argument = parts[1].toInt()
+
+            action(command, argument)
+        }
+    }
+
+    fun part1(input: List<String>): Int {
+        var horizontal = 0
+        var depth = 0
+
+        dispatchCommands(input) { command, argument ->
+            when (command) {
+                "forward" -> horizontal += argument
+                "down" -> depth += argument
+                "up" -> depth -= argument
+            }
+        }
+
+        return horizontal * depth
+    }
+
+    fun part2(input: List<String>): Int {
+        var horizontal = 0
+        var depth = 0
+        var aim = 0
+
+        dispatchCommands(input) { command, argument ->
+            when (command) {
+                "forward" -> {
+                    horizontal += argument
+                    depth += aim * argument
+                }
+
+                "down" -> aim += argument
+                "up" -> aim -= argument
+            }
+        }
+
+        return horizontal * depth
+    }
+}
+
+fun main() {
+    val testInput = readInputAsLines("Day02_test")
+    check(Day02.part1(testInput) == 150)
+    check(Day02.part2(testInput) == 900)
+
+    val input = readInputAsLines("Day02")
+    println(Day02.part1(input))
+    println(Day02.part2(input))
+}
-- 
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