Add List<T>.shifted function

Zomis · Apr 4, 2021 · 42ad5f8 · 42ad5f8
1 parent cfbf11c
commit 42ad5f8
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/games-core/src/main/kotlin/net/zomis/games/common/GameLists.kt b/games-core/src/main/kotlin/net/zomis/games/common/GameLists.kt
@@ -1,3 +1,8 @@
 package net.zomis.games.common
 
 fun <T: Any> T.toSingleList(): List<T> = listOf(this)
+fun <T> List<T>.shifted(steps: Int): List<T> {
+    require(steps >= 0)
+    require(steps < this.size)
+    return this.subList(steps, this.size) + this.subList(0, steps)
+}