aoc24/util/slices.go

package util

func RemoveFromSlice[T any](s []T, i int) []T {
	s[i] = s[len(s)-1]
	return s[:len(s)-1]
}

func SliceSwap[T any](s []T, x, y int) {
	tmp := s[x]
	s[x] = s[y]
	s[y] = tmp
}

func SafeGet[T any](s [][]T, at Vec2) T {
	var none T
	if at.X < 0 || at.Y < 0 || at.Y >= int64(len(s)) || at.X >= int64(len(s[0])) {
		return none
	}

	return s[at.Y][at.X]
}