1 files changed, 19 insertions, 0 deletions
diff --git a/src/genome/genome.js b/src/genome/genome.js
index e2bf83e..3445fe9 100644
--- a/src/genome/genome.js
+++ b/src/genome/genome.js
@@ -49,3 +49,22 @@ export function mutate(gene, type, value) {
 }
 
 
+export function is_valid(num_input, num_output, genome) {
+  const [ max_index, max_weight ] = genome.reduce(
+    ([max_index, max_weight ], [ source, sink, weight]) => [
+      Math.max(max_index, source, sink),
+      Math.max(max_weight, Math.abs(weight)),
+    ],
+    [ 0, 0 ]
+  );
+
+  if (max_index < num_input + num_output - 1) {
+    return false;
+  }
+  else if (max_weight > 4.0) {
+    return false;
+  }
+  else {
+    return true;
+  }
+}