Fix intermittent bug with undo.

2 files changed, 7 insertions, 6 deletions

diff --git a/rules.js b/rules.js
index e068bbf..9e8cd52 100644
--- a/rules.js
+++ b/rules.js
@@ -79,10 +79,10 @@ function gen_spend_hero_points() {
     }
 }
 function action(state, player, action, arg) {
-    if (action !== 'undo' && state.state !== 'choose_card') {
-        state.undo = push_undo();
-    }
     game = state;
+    if (action !== 'undo' && game.state !== 'choose_card') {
+        push_undo();
+    }
     let S = states[game.state];
     if (action in S)
         S[action](arg, player);
diff --git a/rules.ts b/rules.ts
index 1939d74..1cc024a 100644
--- a/rules.ts
+++ b/rules.ts
@@ -172,11 +172,12 @@ export function action(
   action: string,
   arg: unknown
 ) {
-  if (action !== 'undo' && state.state !== 'choose_card') {
-    state.undo = push_undo();
+  game = state;
+
+  if (action !== 'undo' && game.state !== 'choose_card') {
+    push_undo();
   }
 
-  game = state;
   let S = states[game.state];
   if (action in S) S[action](arg, player);
   else if (action === 'undo' && game.undo && game.undo.length > 0) pop_undo();