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R: Rover.move use copy() & make positionX and positionY immutable

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This commit is contained in:
Paul Hameteman 2025-10-14 23:09:35 +02:00
commit 0ca418f0b5
3 changed files with 4 additions and 5 deletions
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3
src/main/kotlin/org/example/Rover.kt
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@ -25,8 +25,7 @@ class Rover {
private fun move() {
val (updatedX, updatedY) = state.heading.move(state.positionX, state.positionY)
state.positionX = updatedX
state.positionY = updatedY
state = state.copy(positionX = updatedX, positionY = updatedY)
}
private fun turnRight() {

4
src/main/kotlin/org/example/RoverState.kt
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@ -1,7 +1,7 @@
package org.example
data class RoverState(
var positionX: Int = 0,
var positionY: Int = 0,
val positionX: Int = 0,
val positionY: Int = 0,
var heading: Heading = Heading.NORTH,
)