implement Direction

server/witch/direction.go

@@ -14,18 +14,63 @@ type Direction struct {
 }
 
 func (d Direction) Reverse() Direction {
-	// TODO
+	raw := ""
-	return Direction{}
+	switch d.raw {
+	case dirAbove:
+		raw = dirBelow
+	case dirBelow:
+		raw = dirAbove
+	case dirEast:
+		raw = dirWest
+	case dirWest:
+		raw = dirEast
+	case dirNorth:
+		raw = dirSouth
+	case dirSouth:
+		raw = dirNorth
+	}
+	return Direction{raw: raw}
 }
 
 // NormalizeHuman takes a direction someone might type like "up" or "north" and returns the correct Direction struct
 func NormalizeHuman(humanDir string) Direction {
-	// TODO
+	raw := ""
-	return Direction{}
+	switch humanDir {
+	case "up":
+	case "above":
+		raw = dirAbove
+	case "down":
+	case "below":
+		raw = dirBelow
+	case "east":
+		raw = dirEast
+	case "west":
+		raw = dirWest
+	case "north":
+		raw = dirNorth
+	case "south":
+		raw = dirSouth
+
+	}
+	return Direction{raw: raw}
 }
 
 // Human returns a string form of this direction like "above" or "north"
-func (d Direction) Human() string {
+func (d Direction) Human() (humanDir string) {
-	// TODO
+	switch d.raw {
-	return ""
+	case dirAbove:
+		humanDir = "above"
+	case dirBelow:
+		humanDir = "below"
+	case dirEast:
+		humanDir = "east"
+	case dirWest:
+		humanDir = "west"
+	case dirNorth:
+		humanDir = "north"
+	case dirSouth:
+		humanDir = "south"
+	}
+
+	return humanDir
 }