add subprojects

1 files changed, 18 insertions, 0 deletions

diff --git a/maize-maze/js/helpers.js b/maize-maze/js/helpers.js
new file mode 100644
index 0000000..1bc6579
--- /dev/null
+++ b/maize-maze/js/helpers.js
@@ -0,0 +1,18 @@
+function random_in_range(a,z) {
+  return Math.floor(Math.random() * (z - a) + a);
+}
+
+function shuffle_array(a) {
+  for (let i = 0; i < a.length; i++) {
+    let j = random_in_range(0, i+1);
+    temp = a[i]; a[i] = a[j]; a[j] = temp;
+  }
+}
+
+function sub(p1, p2) {
+  return [p1[0] - p2[0], p1[1] - p2[1]];
+}
+
+function any(l) {
+  return l.filter((x) => x).length > 0;
+}
\ No newline at end of file