Refactor Maps (#2)

src/utils.js

@@ -44,6 +44,14 @@ export function hypotenuse(a, b) {
 }
 
 export function random(min, max) {
+	if (Array.isArray(min)) {
+		return min[random(min.length - 1)];
+	}
+
+	if (typeof min === 'object') {
+		return min[random(Object.keys(min))];
+	}
+
 	if (max == null) {
 		max = min;
 		min = 0;