fixes and boundingBox simplification for flat-topped-square boards

src/utils.js

@@ -57,3 +57,21 @@ export function random(min, max) {
 	return min + Math.floor(Math.random() * (max - min + 1));
 }
 
+export function range (start, end) {
+	if (end == null) {
+		end = start;
+		start = 0;
+	}
+
+	return Array.from(Array(end - start), (_value, index) => index + start);
+}
+
+export function rangeInclusive(start, end) {
+	if (end == null) {
+		end = start;
+		start = 0;
+	}
+
+	return range(start, end+1);
+}
+