Sha256: 20c73c5c467f56a06c66260d60ae2390a42d3165cd940213af14b6505c8ac76c
Contents?: true
Size: 1.2 KB
Versions: 188
Compression:
Stored size: 1.2 KB
Contents
fun Orientation.turnLeft() = Orientation.values()[Math.floorMod(ordinal - 1, Orientation.values().size)]
fun Orientation.turnRight() = Orientation.values()[Math.floorMod(ordinal + 1, Orientation.values().size)]
class Robot(var gridPosition: GridPosition = GridPosition(0, 0), var orientation: Orientation = Orientation.NORTH) {
fun advance() {
gridPosition = when (orientation) {
Orientation.NORTH -> gridPosition.copy(y = gridPosition.y + 1)
Orientation.EAST -> gridPosition.copy(x = gridPosition.x + 1)
Orientation.SOUTH -> gridPosition.copy(y = gridPosition.y - 1)
Orientation.WEST -> gridPosition.copy(x = gridPosition.x - 1)
}
}
fun turnLeft() {
orientation = orientation.turnLeft()
}
fun turnRight() {
orientation = orientation.turnRight()
}
fun simulate(instructions: String) {
for (instruction in instructions) {
when (instruction) {
'A' -> advance()
'R' -> turnRight()
'L' -> turnLeft()
else -> throw IllegalArgumentException(String.format("Invalid instruction: '%s'", instruction))
}
}
}
}
Version data entries
188 entries across 188 versions & 1 rubygems