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Update Day12.scala

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kamoshi 2019-12-12 07:31:26 +01:00 committed by GitHub
parent 4fe43f6721
commit 7a379391a8
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1 changed files with 3 additions and 3 deletions
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2019/Scala/day12/Day12.scala
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@ -35,21 +35,21 @@ class Day12 {
@scala.annotation.tailrec
def findFirstXRepeat(array: Array[Moon], n: Int = 1): Int = {
step(array, 1)
if (array(0).posX == -16 && array(1).posX == -14 && array(2).posX == 2 && array(3).posX == -3) n+1
if (array(0).posX == -16 && array(1).posX == -14 && array(2).posX == 2 && array(3).posX == -3) n+1 // n+1 because we're looking for kinetic E=0
else findFirstXRepeat(array, n+1)
}
@scala.annotation.tailrec
def findFirstYRepeat(array: Array[Moon], n: Int = 1): Int = {
step(array, 1)
if (array(0).posY == 15 && array(1).posY == 5 && array(2).posY == 0 && array(3).posY == 18) n+1
if (array(0).posY == 15 && array(1).posY == 5 && array(2).posY == 0 && array(3).posY == 18) n+1 // n+1 because we're looking for kinetic E=0
else findFirstYRepeat(array, n+1)
}
@scala.annotation.tailrec
def findFirstZRepeat(array: Array[Moon], n: Int = 1): Int = {
step(array, 1)
if (array(0).posZ == -9 && array(1).posZ == 4 && array(2).posZ == 6 && array(3).posZ == 9) n+1
if (array(0).posZ == -9 && array(1).posZ == 4 && array(2).posZ == 6 && array(3).posZ == 9) n+1 // n+1 because we're looking for kinetic E=0
else findFirstZRepeat(array, n+1)
}