Day 3: WIP

03dec/main.go

@@ -13,17 +13,6 @@ const (
 	S
 )
 
-var (
-	cur  int
-	x    int
-	y    int
-	dir  int
-	xmax int
-	xmin int
-	ymax int
-	ymin int
-)
-
 func main() {
 	n, err := strconv.Atoi(os.Args[1])
 	if err != nil {
@@ -31,65 +20,6 @@ func main() {
 	}
 	fmt.Println(n)
 
+	cur, x, y, dir, width, height := 1, 0, 0, W
 	// create cell and compute change direction, expand grid
-	for cur < n {
-		nextMove()
-		fmt.Println(cur, x, y)
-	}
-
-	fmt.Println("\n", Abs(x)+Abs(y))
-}
-
-func nextMove() {
-	if cur == 0 {
-		dir = S
-	} else {
-		x1, y1 := dirMove()
-		if outOfBound(x1, y1) {
-			changeDir()
-			x1, y1 = dirMove()
-		}
-		x, y = x1, y1
-	}
-	cur++
-}
-
-func dirMove() (int, int) {
-	switch dir {
-	case W:
-		return x - 1, y
-	case N:
-		return x, y + 1
-	case E:
-		return x + 1, y
-	case S:
-		return x, y - 1
-	default:
-		return x, y
-	}
-}
-func outOfBound(x1 int, y1 int) bool {
-	return x1 > xmax || x1 < xmin || y1 > ymax || y1 < ymin
-}
-func changeDir() {
-	switch dir {
-	case W:
-		dir = S
-		ymin--
-	case N:
-		dir = W
-		xmin--
-	case E:
-		dir = N
-		ymax++
-	case S:
-		dir = E
-		xmax++
-	}
-}
-func Abs(n int) int {
-	if n < 0 {
-		return -n
-	}
-	return n
 }