add is_valid()

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;

+  }

+}