aoc2024/day-04/internal/one/neighbours.go

package one

func neighbours(p point) [8]point {
	return [8]point{
		{y: p.y - 1, x: p.x, direction: N},
		{y: p.y - 1, x: p.x + 1, direction: NE},
		{y: p.y, x: p.x + 1, direction: E},
		{y: p.y + 1, x: p.x + 1, direction: SE},
		{y: p.y + 1, x: p.x, direction: S},
		{y: p.y + 1, x: p.x - 1, direction: SW},
		{y: p.y, x: p.x - 1, direction: W},
		{y: p.y - 1, x: p.x - 1, direction: NW},
	}
}