fixes for pointy-top square boards

src/utils.js

@@ -63,7 +63,14 @@ export function range (start, end) {
 		start = 0;
 	}
 
-	return Array.from(Array(end - start), (_value, index) => index + start);
+	if (start > end) {
+		const swap = start;
+
+		start = end;
+		end = swap;
+	}
+
+	return Array.from(Array(Math.abs(end - start)), (_value, index) => index + start);
 }
 
 export function rangeInclusive(start, end) {
@@ -72,6 +79,6 @@ export function rangeInclusive(start, end) {
 		start = 0;
 	}
 
-	return range(start, end+1);
+	return range(Math.min(start, end), Math.max(start, end)+1);
 }